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  45. <div class="title">NRF24.h</div>  </div>
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  47. <div class="contents">
    48. 

  48. <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">// NRF24.h</span></div>
    49. 

  49. <div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">// Author: Mike McCauley</span></div>
    50. 

  50. <div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">// Copyright (C) 2012 Mike McCauley</span></div>
    51. 

  51. <div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">// $Id: NRF24.h,v 1.2 2014/05/20 06:00:55 mikem Exp mikem $</span></div>
    52. 

  52. <div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">//</span><span class="comment"></span></div>
    53. 

  53. <div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">/// \mainpage NRF24 library for Arduino</span></div>
    54. 

  54. <div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">///</span></div>
    55. 

  55. <div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">/// This NRF24 library has now been superceded by the RadioHead </span></div>
    56. 

  56. <div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">/// library http://www.airspayce.com/mikem/arduino/RadioHead</span></div>
    57. 

  57. <div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">/// RadioHead and its RH_NRF24 driver provides all the features supported by NRF24, and much more</span></div>
    58. 

  58. <div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">/// besides, including Reliable Datagrams, Addressing, Routing and Meshes. All the platforms that</span></div>
    59. 

  59. <div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">/// NRF24 supported are also supported by RadioHead.</span></div>
    60. 

  60. <div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">///</span></div>
    61. 

  61. <div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">/// This library will no longer be maintained or updated, but we will continue to publish</span></div>
    62. 

  62. <div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">/// it for the benefit of the the community, and you may continue to use it within the terms of</span></div>
    63. 

  63. <div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment">/// the license. Nevertheless we recommend upgrading to RadioHead where</span></div>
    64. 

  64. <div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment">/// possible.</span></div>
    65. 

  65. <div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment">///</span></div>
    66. 

  66. <div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment">/// This is the Arduino NRF24 library.</span></div>
    67. 

  67. <div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment">/// It provides an object-oriented interface for sending and receiving data messages with Nordic nRF24L01</span></div>
    68. 

  68. <div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment">/// based radio modules, such as the sparkfun WRL-00691 http://www.sparkfun.com/products/691</span></div>
    69. 

  69. <div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment">///</span></div>
    70. 

  70. <div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment">/// The nRF24L01 (http://www.sparkfun.com/datasheets/Wireless/Nordic/nRF24L01P_Product_Specification_1_0.pdf)</span></div>
    71. 

  71. <div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment">/// is a low-cost 2.4GHz ISM transceiver module. It supports a number of channel frequencies in the 2.4GHz band</span></div>
    72. 

  72. <div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment">/// and a range of data rates.</span></div>
    73. 

  73. <div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment">///</span></div>
    74. 

  74. <div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment">/// This library provides functions for sending and receiving messages of up to 32 octets on any </span></div>
    75. 

  75. <div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment">/// frequency supported by the nRF24L01, at a selected data rate.</span></div>
    76. 

  76. <div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="comment">///</span></div>
    77. 

  77. <div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="comment">/// Up to 2 nRF24L01 modules can be connected to an Arduino, permitting the construction of translators</span></div>
    78. 

  78. <div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="comment">/// and frequency changers, etc.</span></div>
    79. 

  79. <div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="comment">///</span></div>
    80. 

  80. <div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="comment">/// This library provides classes for </span></div>
    81. 

  81. <div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="comment">/// - NRF24: addressed, reliable, retransmitted, acknowledged messages (using nrf24 Enhanced Shockburst)</span></div>
    82. 

  82. <div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="comment">///</span></div>
    83. 

  83. <div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="comment">/// Example Arduino programs are included to show the main modes of use.</span></div>
    84. 

  84. <div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="comment">///</span></div>
    85. 

  85. <div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="comment">/// The version of the package that this documentation refers to can be downloaded </span></div>
    86. 

  86. <div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="comment">/// from http://www.airspayce.com/mikem/arduino/NRF24/NRF24-1.14.zip</span></div>
    87. 

  87. <div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="comment">/// You can find the latest version at http://www.airspayce.com/mikem/arduino/NRF24</span></div>
    88. 

  88. <div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="comment">///</span></div>
    89. 

  89. <div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="comment">/// You can also find online help and disussion at </span></div>
    90. 

  90. <div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="comment">/// http://groups.google.com/group/NRF24-arduino</span></div>
    91. 

  91. <div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="comment">/// Please use that group for all questions and discussions on this topic. </span></div>
    92. 

  92. <div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="comment">/// Do not contact the author directly, unless it is to discuss commercial licensing.</span></div>
    93. 

  93. <div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="comment">/// Before asking a question or reporting a bug, please read http://www.catb.org/esr/faqs/smart-questions.html</span></div>
    94. 

  94. <div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="comment">///</span></div>
    95. 

  95. <div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="comment">/// Tested on Arduino Diecimila, Duemilanove and Mega with arduino 1.0</span></div>
    96. 

  96. <div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;<span class="comment">/// on OpenSuSE 12.1 with avr-libc-1.7.1-1.1, cross-avr-binutils-2.19.1-33.1</span></div>
    97. 

  97. <div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;<span class="comment">/// and cross-avr-gcc-4.3.3_20100125-28.1, and with arduino-0021 on the same platforms</span></div>
    98. 

  98. <div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;<span class="comment">///</span></div>
    99. 

  99. <div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="comment">/// \par Packet Format</span></div>
    100. 

  100. <div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="comment">///</span></div>
    101. 

  101. <div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;<span class="comment">/// All messages sent and received by this NRF24 library must conform to this packet format, as specified by </span></div>
    102. 

  102. <div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="comment">/// the nRF24L01 product specificaiton:</span></div>
    103. 

  103. <div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="comment">///</span></div>
    104. 

  104. <div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;<span class="comment">/// - 1 octets PREAMBLE</span></div>
    105. 

  105. <div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;<span class="comment">/// - 4 octets ADDRESS</span></div>
    106. 

  106. <div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;<span class="comment">/// - 9 bits packet control field</span></div>
    107. 

  107. <div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;<span class="comment">/// - 0 to 32 octets PAYLOAD</span></div>
    108. 

  108. <div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="comment">/// - 2 octets CRC </span></div>
    109. 

  109. <div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;<span class="comment">///</span></div>
    110. 

  110. <div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;<span class="comment">/// \par Connecting nRF24L01 to Arduino</span></div>
    111. 

  111. <div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span class="comment">///</span></div>
    112. 

  112. <div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;<span class="comment">/// The physical connection between the nRF24L01 and the Arduino require 3.3V, the 3 x SPI pins (SCK, SDI, SDO), </span></div>
    113. 

  113. <div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="comment">/// a Chip Enable pin and a Slave Select pin.</span></div>
    114. 

  114. <div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;<span class="comment">/// If you are using the Sparkfun WRL-00691 module, it has a voltage regulator on board and </span></div>
    115. 

  115. <div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;<span class="comment">/// can be run with 5V VCC</span></div>
    116. 

  116. <div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;<span class="comment">/// The examples below assume the Sparkfun WRL-00691 module</span></div>
    117. 

  117. <div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;<span class="comment">///</span></div>
    118. 

  118. <div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;<span class="comment">/// Connect the nRF24L01 to most Arduino&#39;s like this (Caution, Arduino Mega has different pins for SPI, </span></div>
    119. 

  119. <div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;<span class="comment">/// see below), </span></div>
    120. 

  120. <div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;<span class="comment">/// \code</span></div>
    121. 

  121. <div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;<span class="comment">///                 Arduino      Sparkfun WRL-00691</span></div>
    122. 

  122. <div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;<span class="comment">///                 3V3 or 5V----VCC   (3.3V to 7V in)</span></div>
    123. 

  123. <div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;<span class="comment">///             pin D8-----------CE    (chip enable in)</span></div>
    124. 

  124. <div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="comment">///          SS pin D10----------CSN   (chip select in)</span></div>
    125. 

  125. <div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;<span class="comment">///         SCK pin D13----------SCK   (SPI clock in)</span></div>
    126. 

  126. <div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;<span class="comment">///        MOSI pin D11----------SDI   (SPI Data in)</span></div>
    127. 

  127. <div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;<span class="comment">///        MISO pin D12----------SDO   (SPI data out)</span></div>
    128. 

  128. <div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;<span class="comment">///                              IRQ   (Interrupt output, not connected)</span></div>
    129. 

  129. <div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;<span class="comment">///                 GND----------GND   (ground in)</span></div>
    130. 

  130. <div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;<span class="comment">/// \endcode</span></div>
    131. 

  131. <div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;<span class="comment">///</span></div>
    132. 

  132. <div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;<span class="comment">/// For an Arduino Leonardo (the SPI pins do not come out on the Digital pins as for normal Arduino, but only</span></div>
    133. 

  133. <div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;<span class="comment">/// appear on the ICSP header)</span></div>
    134. 

  134. <div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;<span class="comment">/// \code</span></div>
    135. 

  135. <div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;<span class="comment">///                Leonardo      Sparkfun WRL-00691</span></div>
    136. 

  136. <div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;<span class="comment">///                 3V3 or 5V----VCC   (3.3V to 7V in)</span></div>
    137. 

  137. <div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;<span class="comment">///             pin D8-----------CE    (chip enable in)</span></div>
    138. 

  138. <div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;<span class="comment">///          SS pin D10----------CSN   (chip select in)</span></div>
    139. 

  139. <div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;<span class="comment">///      SCK ICSP pin 3----------SCK   (SPI clock in)</span></div>
    140. 

  140. <div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;<span class="comment">///     MOSI ICSP pin 4----------SDI   (SPI Data in)</span></div>
    141. 

  141. <div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;<span class="comment">///     MISO ICSP pin 1----------SDO   (SPI data out)</span></div>
    142. 

  142. <div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;<span class="comment">///                              IRQ   (Interrupt output, not connected)</span></div>
    143. 

  143. <div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;<span class="comment">///                 GND----------GND   (ground in)</span></div>
    144. 

  144. <div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;<span class="comment">/// \endcode</span></div>
    145. 

  145. <div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;<span class="comment">/// and initialise the NRF24 object like this to explicitly set the SS pin</span></div>
    146. 

  146. <div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;<span class="comment">/// NRF24 nrf24(8, 10);</span></div>
    147. 

  147. <div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;<span class="comment">///</span></div>
    148. 

  148. <div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;<span class="comment">/// For an Arduino Mega:</span></div>
    149. 

  149. <div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;<span class="comment">/// \code</span></div>
    150. 

  150. <div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;<span class="comment">///                 Mega         Sparkfun WRL-00691</span></div>
    151. 

  151. <div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;<span class="comment">///                 3V3 or 5V----VCC   (3.3V to 7V in)</span></div>
    152. 

  152. <div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;<span class="comment">///             pin D8-----------CE    (chip enable in)</span></div>
    153. 

  153. <div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;<span class="comment">///          SS pin D53----------CSN   (chip select in)</span></div>
    154. 

  154. <div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;<span class="comment">///         SCK pin D52----------SCK   (SPI clock in)</span></div>
    155. 

  155. <div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;<span class="comment">///        MOSI pin D51----------SDI   (SPI Data in)</span></div>
    156. 

  156. <div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;<span class="comment">///        MISO pin D50----------SDO   (SPI data out)</span></div>
    157. 

  157. <div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;<span class="comment">///                              IRQ   (Interrupt output, not connected)</span></div>
    158. 

  158. <div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;<span class="comment">///                 GND----------GND   (ground in)</span></div>
    159. 

  159. <div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;<span class="comment">/// \endcode</span></div>
    160. 

  160. <div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;<span class="comment">/// and you can then use the default constructor NRF24(). </span></div>
    161. 

  161. <div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;<span class="comment">/// You can override the default settings for the CSN and CE pins </span></div>
    162. 

  162. <div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;<span class="comment">/// in the NRF24() constructor if you wish to connect the slave select CSN to other than the normal one for your </span></div>
    163. 

  163. <div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;<span class="comment">/// Arduino (D10 for Diecimila, Uno etc and D53 for Mega)</span></div>
    164. 

  164. <div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;<span class="comment">///</span></div>
    165. 

  165. <div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;<span class="comment">/// Caution: on some Arduinos such as the Mega 2560, if you set the slave select pin to be other than the usual SS </span></div>
    166. 

  166. <div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;<span class="comment">/// pin (D53 on  Mega 2560), you may need to set the usual SS pin to be an output to force the Arduino into SPI </span></div>
    167. 

  167. <div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;<span class="comment">/// master mode.</span></div>
    168. 

  168. <div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;<span class="comment">///</span></div>
    169. 

  169. <div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;<span class="comment">/// Caution: this module has not been proved to work with Leonardo, at least without level </span></div>
    170. 

  170. <div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;<span class="comment">/// shifters between the NRF24 and the Leonardo. Tests seem to indicate that such level shifters would be required</span></div>
    171. 

  171. <div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;<span class="comment">/// with Leonardo to make it work.</span></div>
    172. 

  172. <div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;<span class="comment">///</span></div>
    173. 

  173. <div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;<span class="comment">/// It is possible to have 2 radios conected to one arduino, provided each radio has its own </span></div>
    174. 

  174. <div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;<span class="comment">/// CSN and CE line (SCK, SDI and SDO are common to both radios)</span></div>
    175. 

  175. <div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;<span class="comment">///</span></div>
    176. 

  176. <div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;<span class="comment">/// \par Example programs</span></div>
    177. 

  177. <div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;<span class="comment">///</span></div>
    178. 

  178. <div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;<span class="comment">/// The following example programs are provided:</span></div>
    179. 

  179. <div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;<span class="comment">/// -nrf24_ping_client, nrf24_pin_server. This is a matched pair. The client sends (acknowledged)</span></div>
    180. 

  180. <div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;<span class="comment">///  4 byte timestamp to the server which replies (acknowledged). </span></div>
    181. 

  181. <div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;<span class="comment">///  The client measures the round-trip time and prints it. Typical RTT is 1-2 msec. </span></div>
    182. 

  182. <div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;<span class="comment">///  These are compatible radio wise with the ping_client and ping_server programs that come with the Mirf library</span></div>
    183. 

  183. <div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;<span class="comment">///   though the electrical connections are different</span></div>
    184. 

  184. <div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;<span class="comment">/// -nrf24_specan. Example sketch showing how to create a primitive spectrum analyser</span></div>
    185. 

  185. <div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;<span class="comment">///  with the NRF24 class. The nRF24L01 received power detector is only one bit, but</span></div>
    186. 

  186. <div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;<span class="comment">///  this will show which channels have more than -64dBm present.</span></div>
    187. 

  187. <div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;<span class="comment">/// -nrf24_audio_tx, nrf24_audio_rx. This is a matched pair. The clinet sends a stream of audio samples measured</span></div>
    188. 

  188. <div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;<span class="comment">///  from analog input 0 to the receiver, which reconstructs them on output D6. See comments in those files for </span></div>
    189. 

  189. <div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;<span class="comment">///  electrical requirements. The pair demonstrates the use of NRF24 in NOACK modefor improved performance </span></div>
    190. 

  190. <div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;<span class="comment">///  (but no reliability). Can achieve 6.4kHz sample rate. Dont expect good quality audio!</span></div>
    191. 

  191. <div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;<span class="comment">///</span></div>
    192. 

  192. <div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;<span class="comment">/// \par Radio Performance</span></div>
    193. 

  193. <div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;<span class="comment">///</span></div>
    194. 

  194. <div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;<span class="comment">/// The performance of this radio seems to be very good. I was able to build ping client/server</span></div>
    195. 

  195. <div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;<span class="comment">/// that was able to achieve over 800 round trips per second </span></div>
    196. 

  196. <div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;<span class="comment">/// (at 0dBm power, 2Mbps, channel 1, 4 byte payload each way, 1 checksum byte) when the radios were next to each other. </span></div>
    197. 

  197. <div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;<span class="comment">/// This rate could still be achieved at 15m distance, but the orientation of the radios and </span></div>
    198. 

  198. <div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;<span class="comment">/// obstructions became critical. The human body can easily block these signals. </span></div>
    199. 

  199. <div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;<span class="comment">/// Best response was when the chip antennas were broadside to each other.</span></div>
    200. 

  200. <div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;<span class="comment">/// </span></div>
    201. 

  201. <div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;<span class="comment">/// It is possible to get even better streaming performance using NOACK mode (see the nrf24_audio_tx sample)</span></div>
    202. 

  202. <div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;<span class="comment">/// at the cost of nop reliability.</span></div>
    203. 

  203. <div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;<span class="comment">/// In NOACK mode, at 2Mbps, 32 byte payload, can get about 1900 packets per second: 60800 bytes of payload per second</span></div>
    204. 

  204. <div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;<span class="comment">///</span></div>
    205. 

  205. <div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;<span class="comment">/// Frequency accuracy may be debatable. For nominal frequency of 2401.000 MHz (ie channel 1), </span></div>
    206. 

  206. <div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;<span class="comment">/// my Yaesu VR-5000 receiver indicated the center frequency for my test radios</span></div>
    207. 

  207. <div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;<span class="comment">/// was 2401.121 MHz. Its not clear to me if the Yaesu</span></div>
    208. 

  208. <div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;<span class="comment">/// is the source of the error, but I tend to believe it, which would make the nRF24l01 frequency out by 121kHz.</span></div>
    209. 

  209. <div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;<span class="comment">/// </span></div>
    210. 

  210. <div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;<span class="comment">/// \par Radio operating strategy and defaults</span></div>
    211. 

  211. <div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;<span class="comment">///</span></div>
    212. 

  212. <div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;<span class="comment">/// The radio is enabled all the time, and switched between TX and RX modes depending on </span></div>
    213. 

  213. <div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;<span class="comment">/// whether there is any data to send. Sending data sets the radio to TX mode.</span></div>
    214. 

  214. <div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;<span class="comment">/// After data is sent, the radion automatically returns to Standby II mode. Calling waitAvailable() or</span></div>
    215. 

  215. <div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;<span class="comment">/// waitAvailableTimeout() starts the radio in RX mode.</span></div>
    216. 

  216. <div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;<span class="comment">///</span></div>
    217. 

  217. <div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;<span class="comment">/// The radio is configured by default to Channel 2, 2Mbps, 0dBm power, 5 bytes address, payload width 1, CRC enabled</span></div>
    218. 

  218. <div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;<span class="comment">/// 1 byte CRC, Auto-Ack mode. Enhanced shockburst is used. </span></div>
    219. 

  219. <div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;<span class="comment">/// P1 is the receive pipe. P0 is set to the transmit address to enable autoack.</span></div>
    220. 

  220. <div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;<span class="comment">///</span></div>
    221. 

  221. <div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;<span class="comment">/// \par Memory</span></div>
    222. 

  222. <div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;<span class="comment">///</span></div>
    223. 

  223. <div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;<span class="comment">/// Memory usage of this program is minimal. The compiled ping client and server programs are about 4000 bytes. </span></div>
    224. 

  224. <div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;<span class="comment">/// RAM requirements of the library are minimal.</span></div>
    225. 

  225. <div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;<span class="comment">///</span></div>
    226. 

  226. <div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;<span class="comment">/// \par Installation</span></div>
    227. 

  227. <div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;<span class="comment">///</span></div>
    228. 

  228. <div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;<span class="comment">/// Install in the usual way: unzip the distribution zip file to the libraries</span></div>
    229. 

  229. <div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;<span class="comment">/// sub-folder of your sketchbook. </span></div>
    230. 

  230. <div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;<span class="comment">///</span></div>
    231. 

  231. <div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;<span class="comment">/// This software is Copyright (C) 2012 Mike McCauley. Use is subject to license</span></div>
    232. 

  232. <div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;<span class="comment">/// conditions. The main licensing options available are GPL V2 or Commercial:</span></div>
    233. 

  233. <div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;<span class="comment">/// </span></div>
    234. 

  234. <div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;<span class="comment">/// \par Donations</span></div>
    235. 

  235. <div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;<span class="comment">///</span></div>
    236. 

  236. <div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;<span class="comment">/// This library is offered under a free GPL license for those who want to use it that way. </span></div>
    237. 

  237. <div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;<span class="comment">/// We try hard to keep it up to date, fix bugs</span></div>
    238. 

  238. <div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;<span class="comment">/// and to provide free support. If this library has helped you save time or money, please consider donating at</span></div>
    239. 

  239. <div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;<span class="comment">/// http://www.airspayce.com or here:</span></div>
    240. 

  240. <div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;<span class="comment">///</span></div>
    241. 

  241. <div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;<span class="comment">/// \htmlonly &lt;form action=&quot;https://www.paypal.com/cgi-bin/webscr&quot; method=&quot;post&quot;&gt;&lt;input type=&quot;hidden&quot; name=&quot;cmd&quot; value=&quot;_donations&quot; /&gt; &lt;input type=&quot;hidden&quot; name=&quot;business&quot; value=&quot;mikem@airspayce.com&quot; /&gt; &lt;input type=&quot;hidden&quot; name=&quot;lc&quot; value=&quot;AU&quot; /&gt; &lt;input type=&quot;hidden&quot; name=&quot;item_name&quot; value=&quot;Airspayce&quot; /&gt; &lt;input type=&quot;hidden&quot; name=&quot;item_number&quot; value=&quot;NRF24&quot; /&gt; &lt;input type=&quot;hidden&quot; name=&quot;currency_code&quot; value=&quot;USD&quot; /&gt; &lt;input type=&quot;hidden&quot; name=&quot;bn&quot; value=&quot;PP-DonationsBF:btn_donateCC_LG.gif:NonHosted&quot; /&gt; &lt;input type=&quot;image&quot; alt=&quot;PayPal — The safer, easier way to pay online.&quot; name=&quot;submit&quot; src=&quot;https://www.paypalobjects.com/en_AU/i/btn/btn_donateCC_LG.gif&quot; /&gt; &lt;img alt=&quot;&quot; src=&quot;https://www.paypalobjects.com/en_AU/i/scr/pixel.gif&quot; width=&quot;1&quot; height=&quot;1&quot; border=&quot;0&quot; /&gt;&lt;/form&gt; \endhtmlonly</span></div>
    242. 

  242. <div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;<span class="comment">/// </span></div>
    243. 

  243. <div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;<span class="comment">/// \par Open Source Licensing GPL V2</span></div>
    244. 

  244. <div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;<span class="comment">///</span></div>
    245. 

  245. <div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;<span class="comment">/// This is the appropriate option if you want to share the source code of your</span></div>
    246. 

  246. <div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;<span class="comment">/// application with everyone you distribute it to, and you also want to give them</span></div>
    247. 

  247. <div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;<span class="comment">/// the right to share who uses it. If you wish to use this software under Open</span></div>
    248. 

  248. <div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;<span class="comment">/// Source Licensing, you must contribute all your source code to the open source</span></div>
    249. 

  249. <div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;<span class="comment">/// community in accordance with the GPL Version 2 when your application is</span></div>
    250. 

  250. <div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;<span class="comment">/// distributed. See http://www.gnu.org/copyleft/gpl.html</span></div>
    251. 

  251. <div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;<span class="comment">/// </span></div>
    252. 

  252. <div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;<span class="comment">/// \par Commercial Licensing</span></div>
    253. 

  253. <div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;<span class="comment">///</span></div>
    254. 

  254. <div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;<span class="comment">/// This is the appropriate option if you are creating proprietary applications</span></div>
    255. 

  255. <div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;<span class="comment">/// and you are not prepared to distribute and share the source code of your</span></div>
    256. 

  256. <div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;<span class="comment">/// application. Contact info@airspayce.com for details.</span></div>
    257. 

  257. <div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;<span class="comment">///</span></div>
    258. 

  258. <div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;<span class="comment">/// \par Revision History</span></div>
    259. 

  259. <div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;<span class="comment">///</span></div>
    260. 

  260. <div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;<span class="comment">/// \version 1.0 Initial release</span></div>
    261. 

  261. <div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;<span class="comment">///</span></div>
    262. 

  262. <div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;<span class="comment">/// \version 1.1 Changed default value for slave slect pin in constructor to be SS, ie the normal one for </span></div>
    263. 

  263. <div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;<span class="comment">/// the compiled Arduino (D10 for Diecimila, Uno etc and D53 for Mega). This is because some Arduinos such as Mega 2560</span></div>
    264. 

  264. <div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;<span class="comment">/// reportedly use the type of the SS pin to determine whether to run in slave or master mode. Therfore it</span></div>
    265. 

  265. <div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;<span class="comment">/// is preferred that the slave select pin actually be the normal SS pin.</span></div>
    266. 

  266. <div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;<span class="comment">///</span></div>
    267. 

  267. <div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;<span class="comment">/// \version 1.2 Updated documentation about what happens during init, and that SPI is initialised to 8MHz </span></div>
    268. 

  268. <div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;<span class="comment">/// (but can be set to other frequencies after calling init()</span></div>
    269. 

  269. <div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;<span class="comment">/// \version 1.3 Fixed error in title of main page</span></div>
    270. 

  270. <div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;<span class="comment">/// \version 1.4 Fixed typo in nrf24_test.pde, reported by TOM.</span></div>
    271. 

  271. <div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;<span class="comment">/// \version 1.6 Fixed an error NRF24::setRF in setting data rate to 250kbps. Reported by Shiu Kumar.</span></div>
    272. 

  272. <div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;<span class="comment">/// \version 1.7 Improvements to waitPacketSent() so if the chip is not in transmit mode, it wont wait forever.</span></div>
    273. 

  273. <div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;<span class="comment">///              Improvements to isSending() so it returns false if the chip is not in transmit mode.</span></div>
    274. 

  274. <div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;<span class="comment">/// \version 1.8 Fixed a conflict between 2 definitions of NRF24_TX_FULL. The one in 07 STATUS is changed to </span></div>
    275. 

  275. <div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;<span class="comment">///              NRF24_STATUS_TX_FULL. Reported by Charles-Henri Hallard.</span></div>
    276. 

  276. <div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;<span class="comment">///              Updated author and distribution location details to airspayce.com</span></div>
    277. 

  277. <div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;<span class="comment">/// \version 1.9 Improvements to waitAvailableTimeout to make it robust on millis() rollover. </span></div>
    278. 

  278. <div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;<span class="comment">/// \version 1.10 Testing with Leonardo and update documentation to reflect special electrical</span></div>
    279. 

  279. <div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;<span class="comment">///              connection needs on Leonardo.</span></div>
    280. 

  280. <div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;<span class="comment">/// \version 1.11 NRF24_COMMAND_W_ACK_PAYLOAD(c) is now a macro that takes a pipe number parameter.</span></div>
    281. 

  281. <div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;<span class="comment">///              Added new function setRetry(), a convenience for setting ARD and ARC retry parameter.</span></div>
    282. 

  282. <div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;<span class="comment">///              Can now customise the radio configuration byte with setConfiguration().</span></div>
    283. 

  283. <div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;<span class="comment">///              Added new examples crazyflie and crazyflie_client that use the NRF24 library to</span></div>
    284. 

  284. <div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;<span class="comment">///              communicate with Crazyflie quadcopters and transmitters.</span></div>
    285. 

  285. <div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;<span class="comment">/// \version 1.12 NRF24::init, powerUpRx, powerUpTx will now fail if no device is connected;</span></div>
    286. 

  286. <div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;<span class="comment">/// \version 1.13 Added End Of Life notice. This library will no longer be maintained </span></div>
    287. 

  287. <div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;<span class="comment">///               and updated: use RadioHead instead.</span></div>
    288. 

  288. <div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;<span class="comment">/// \version 1.14 Fixed problem that prevented 250kbps data rate working.</span></div>
    289. 

  289. <div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;<span class="comment">///</span></div>
    290. 

  290. <div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;<span class="comment">/// \author  Mike McCauley (mikem@airspayce.com) DO NOT CONTACT THE AUTHOR DIRECTLY: USE THE LISTS</span></div>
    291. 

  291. <div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;<span class="comment"></span></div>
    292. 

  292. <div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;<span class="preprocessor">#ifndef NRF24_h</span></div>
    293. 

  293. <div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_h</span></div>
    294. 

  294. <div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;<span class="preprocessor"></span></div>
    295. 

  295. <div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;<span class="preprocessor">#if ARDUINO &gt;= 100</span></div>
    296. 

  296. <div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#include &lt;Arduino.h&gt;</span></div>
    297. 

  297. <div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;<span class="preprocessor">#else</span></div>
    298. 

  298. <div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#include &lt;wiring.h&gt;</span></div>
    299. 

  299. <div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;<span class="preprocessor">#include &lt;pins_arduino.h&gt;</span></div>
    300. 

  300. <div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;<span class="preprocessor">#endif</span></div>
    301. 

  301. <div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;<span class="preprocessor"></span></div>
    302. 

  302. <div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;<span class="comment">// These defs cause trouble on some versions of Arduino</span></div>
    303. 

  303. <div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;<span class="preprocessor">#undef round</span></div>
    304. 

  304. <div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#undef double</span></div>
    305. 

  305. <div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;<span class="preprocessor"></span></div>
    306. 

  306. <div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;<span class="comment">// This is the bit in the SPI address that marks it as a write</span></div>
    307. 

  307. <div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;<span class="preprocessor">#define NRF24_SPI_WRITE_MASK 0x80</span></div>
    308. 

  308. <div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;<span class="preprocessor"></span></div>
    309. 

  309. <div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;<span class="comment">// This is the maximum message length that can be supported by this library. Limited by</span></div>
    310. 

  310. <div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;<span class="comment">// the suported message lengths oin the nRF24</span></div>
    311. 

  311. <div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;<span class="comment">// Can be pre-defined to a smaller size (to save SRAM) prior to including this header</span></div>
    312. 

  312. <div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;<span class="preprocessor">#ifndef NRF24_MAX_MESSAGE_LEN</span></div>
    313. 

  313. <div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_MAX_MESSAGE_LEN 32</span></div>
    314. 

  314. <div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
    315. 

  315. <div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;<span class="preprocessor"></span></div>
    316. 

  316. <div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;<span class="comment">// Keep track of the mode the NRF24 is in</span></div>
    317. 

  317. <div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;<span class="preprocessor">#define NRF24_MODE_IDLE         0</span></div>
    318. 

  318. <div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_MODE_RX           1</span></div>
    319. 

  319. <div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_MODE_TX           2</span></div>
    320. 

  320. <div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;<span class="preprocessor"></span></div>
    321. 

  321. <div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;<span class="comment">// These values we set for FIFO thresholds are actually the same as the POR values</span></div>
    322. 

  322. <div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;<span class="preprocessor">#define NRF24_TXFFAEM_THRESHOLD 4</span></div>
    323. 

  323. <div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_RXFFAFULL_THRESHOLD 55</span></div>
    324. 

  324. <div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;<span class="preprocessor"></span></div>
    325. 

  325. <div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;<span class="comment">// This is the default node address,</span></div>
    326. 

  326. <div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;<span class="preprocessor">#define NRF24_DEFAULT_NODE_ADDRESS 0x00000000</span></div>
    327. 

  327. <div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;<span class="preprocessor"></span></div>
    328. 

  328. <div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;<span class="comment">// This address in the TO addreess signifies a broadcast</span></div>
    329. 

  329. <div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;<span class="preprocessor">#define NRF24_BROADCAST_ADDRESS 0xffffffffff</span></div>
    330. 

  330. <div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;<span class="preprocessor"></span></div>
    331. 

  331. <div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;<span class="comment">// SPI Command names</span></div>
    332. 

  332. <div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;<span class="preprocessor">#define NRF24_COMMAND_R_REGISTER                        0x00</span></div>
    333. 

  333. <div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_COMMAND_W_REGISTER                        0x20</span></div>
    334. 

  334. <div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_COMMAND_R_RX_PAYLOAD                      0x61</span></div>
    335. 

  335. <div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_COMMAND_W_TX_PAYLOAD                      0xa0</span></div>
    336. 

  336. <div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_COMMAND_FLUSH_TX                          0xe1</span></div>
    337. 

  337. <div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_COMMAND_FLUSH_RX                          0xe2</span></div>
    338. 

  338. <div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_COMMAND_REUSE_TX_PL                       0xe3</span></div>
    339. 

  339. <div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_COMMAND_R_RX_PL_WID                       0x60</span></div>
    340. 

  340. <div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_COMMAND_W_ACK_PAYLOAD(pipe)               (0xa8|(pipe&amp;0x7))</span></div>
    341. 

  341. <div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_COMMAND_W_TX_PAYLOAD_NOACK                0xb0</span></div>
    342. 

  342. <div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_COMMAND_NOP                               0xff</span></div>
    343. 

  343. <div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;<span class="preprocessor"></span></div>
    344. 

  344. <div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;<span class="comment">// Register names</span></div>
    345. 

  345. <div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;<span class="preprocessor">#define NRF24_REGISTER_MASK                             0x1f</span></div>
    346. 

  346. <div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_00_CONFIG                             0x00</span></div>
    347. 

  347. <div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_01_EN_AA                              0x01</span></div>
    348. 

  348. <div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_02_EN_RXADDR                          0x02</span></div>
    349. 

  349. <div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_03_SETUP_AW                           0x03</span></div>
    350. 

  350. <div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_04_SETUP_RETR                         0x04</span></div>
    351. 

  351. <div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_05_RF_CH                              0x05</span></div>
    352. 

  352. <div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_06_RF_SETUP                           0x06</span></div>
    353. 

  353. <div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_07_STATUS                             0x07</span></div>
    354. 

  354. <div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_08_OBSERVE_TX                         0x08</span></div>
    355. 

  355. <div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_09_RPD                                0x09</span></div>
    356. 

  356. <div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_0A_RX_ADDR_P0                         0x0a</span></div>
    357. 

  357. <div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_0B_RX_ADDR_P1                         0x0b</span></div>
    358. 

  358. <div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_0C_RX_ADDR_P2                         0x0c</span></div>
    359. 

  359. <div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_0D_RX_ADDR_P3                         0x0d</span></div>
    360. 

  360. <div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_0E_RX_ADDR_P4                         0x0e</span></div>
    361. 

  361. <div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_0F_RX_ADDR_P5                         0x0f</span></div>
    362. 

  362. <div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_10_TX_ADDR                            0x10</span></div>
    363. 

  363. <div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_11_RX_PW_P0                           0x11</span></div>
    364. 

  364. <div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_12_RX_PW_P1                           0x12</span></div>
    365. 

  365. <div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_13_RX_PW_P2                           0x13</span></div>
    366. 

  366. <div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_14_RX_PW_P3                           0x14</span></div>
    367. 

  367. <div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_15_RX_PW_P4                           0x15</span></div>
    368. 

  368. <div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_16_RX_PW_P5                           0x16</span></div>
    369. 

  369. <div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_17_FIFO_STATUS                        0x17</span></div>
    370. 

  370. <div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_1C_DYNPD                              0x1c</span></div>
    371. 

  371. <div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_REG_1D_FEATURE                            0x1d</span></div>
    372. 

  372. <div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;<span class="preprocessor"></span></div>
    373. 

  373. <div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;<span class="comment">// These register masks etc are named wherever possible</span></div>
    374. 

  374. <div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;<span class="comment">// corresponding to the bit and field names in the nRF24L01 Product Specification</span></div>
    375. 

  375. <div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;<span class="comment">// #define NRF24_REG_00_CONFIG                             0x00</span></div>
    376. 

  376. <div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;<span class="preprocessor">#define NRF24_MASK_RX_DR                                0x40</span></div>
    377. 

  377. <div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_MASK_TX_DS                                0x20</span></div>
    378. 

  378. <div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_MASK_MAX_RT                               0x10</span></div>
    379. 

  379. <div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_EN_CRC                                    0x08</span></div>
    380. 

  380. <div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_CRCO                                      0x04</span></div>
    381. 

  381. <div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_PWR_UP                                    0x02</span></div>
    382. 

  382. <div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_PRIM_RX                                   0x01</span></div>
    383. 

  383. <div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;<span class="preprocessor"></span></div>
    384. 

  384. <div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;<span class="comment">// #define NRF24_REG_01_EN_AA                              0x01</span></div>
    385. 

  385. <div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;<span class="preprocessor">#define NRF24_ENAA_P5                                   0x20</span></div>
    386. 

  386. <div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_ENAA_P4                                   0x10</span></div>
    387. 

  387. <div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_ENAA_P3                                   0x08</span></div>
    388. 

  388. <div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_ENAA_P2                                   0x04</span></div>
    389. 

  389. <div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_ENAA_P1                                   0x02</span></div>
    390. 

  390. <div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_ENAA_P0                                   0x01</span></div>
    391. 

  391. <div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;<span class="preprocessor"></span></div>
    392. 

  392. <div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;<span class="comment">// #define NRF24_REG_02_EN_RXADDR                          0x02</span></div>
    393. 

  393. <div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;<span class="preprocessor">#define NRF24_ERX_P5                                    0x20</span></div>
    394. 

  394. <div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_ERX_P4                                    0x10</span></div>
    395. 

  395. <div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_ERX_P3                                    0x08</span></div>
    396. 

  396. <div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_ERX_P2                                    0x04</span></div>
    397. 

  397. <div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_ERX_P1                                    0x02</span></div>
    398. 

  398. <div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_ERX_P0                                    0x01</span></div>
    399. 

  399. <div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;<span class="preprocessor"></span></div>
    400. 

  400. <div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;<span class="comment">// #define NRF24_REG_03_SETUP_AW                           0x03</span></div>
    401. 

  401. <div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;<span class="preprocessor">#define NRF24_AW_3_BYTES                                0x01</span></div>
    402. 

  402. <div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_AW_4_BYTES                                0x02</span></div>
    403. 

  403. <div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_AW_5_BYTES                                0x03</span></div>
    404. 

  404. <div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;<span class="preprocessor"></span></div>
    405. 

  405. <div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;<span class="comment">// #define NRF24_REG_04_SETUP_RETR                         0x04</span></div>
    406. 

  406. <div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;<span class="preprocessor">#define NRF24_ARD                                       0xf0</span></div>
    407. 

  407. <div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_ARC                                       0x0f</span></div>
    408. 

  408. <div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;<span class="preprocessor"></span></div>
    409. 

  409. <div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;<span class="comment">// #define NRF24_REG_05_RF_CH                              0x05</span></div>
    410. 

  410. <div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;<span class="preprocessor">#define NRF24_RF_CH                                     0x7f</span></div>
    411. 

  411. <div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;<span class="preprocessor"></span></div>
    412. 

  412. <div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;<span class="comment">// #define NRF24_REG_06_RF_SETUP                           0x06</span></div>
    413. 

  413. <div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;<span class="preprocessor">#define NRF24_CONT_WAVE                                 0x80</span></div>
    414. 

  414. <div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_RF_DR_LOW                                 0x20</span></div>
    415. 

  415. <div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_PLL_LOCK                                  0x10</span></div>
    416. 

  416. <div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_RF_DR_HIGH                                0x08</span></div>
    417. 

  417. <div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_PWR                                       0x06</span></div>
    418. 

  418. <div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_PWR_m18dBm                                0x00</span></div>
    419. 

  419. <div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_PWR_m12dBm                                0x02</span></div>
    420. 

  420. <div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_PWR_m6dBm                                 0x04</span></div>
    421. 

  421. <div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_PWR_0dBm                                  0x06</span></div>
    422. 

  422. <div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;<span class="preprocessor"></span></div>
    423. 

  423. <div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;<span class="comment">// #define NRF24_REG_07_STATUS                             0x07</span></div>
    424. 

  424. <div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;<span class="preprocessor">#define NRF24_RX_DR                                     0x40</span></div>
    425. 

  425. <div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_TX_DS                                     0x20</span></div>
    426. 

  426. <div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_MAX_RT                                    0x10</span></div>
    427. 

  427. <div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_RX_P_NO                                   0x0e</span></div>
    428. 

  428. <div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_STATUS_TX_FULL                            0x01</span></div>
    429. 

  429. <div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;<span class="preprocessor"></span></div>
    430. 

  430. <div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;</div>
    431. 

  431. <div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;<span class="comment">// #define NRF24_REG_08_OBSERVE_TX                         0x08</span></div>
    432. 

  432. <div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160;<span class="preprocessor">#define NRF24_PLOS_CNT                                  0xf0</span></div>
    433. 

  433. <div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_ARC_CNT                                   0x0f</span></div>
    434. 

  434. <div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160;<span class="preprocessor"></span></div>
    435. 

  435. <div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160;<span class="comment">// #define NRF24_REG_09_RPD                                0x09</span></div>
    436. 

  436. <div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;<span class="preprocessor">#define NRF24_RPD                                       0x01</span></div>
    437. 

  437. <div class="line"><a name="l00390"></a><span class="lineno">  390</span>&#160;<span class="preprocessor"></span></div>
    438. 

  438. <div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160;<span class="comment">// #define NRF24_REG_17_FIFO_STATUS                        0x17</span></div>
    439. 

  439. <div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160;<span class="preprocessor">#define NRF24_TX_REUSE                                  0x40</span></div>
    440. 

  440. <div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_TX_FULL                                   0x20</span></div>
    441. 

  441. <div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_TX_EMPTY                                  0x10</span></div>
    442. 

  442. <div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_RX_FULL                                   0x02</span></div>
    443. 

  443. <div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_RX_EMPTY                                  0x01</span></div>
    444. 

  444. <div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160;<span class="preprocessor"></span></div>
    445. 

  445. <div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;<span class="comment">// #define NRF24_REG_1C_DYNPD                              0x1c</span></div>
    446. 

  446. <div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160;<span class="preprocessor">#define NRF24_DPL_P5                                    0x20</span></div>
    447. 

  447. <div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_DPL_P4                                    0x10</span></div>
    448. 

  448. <div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_DPL_P3                                    0x08</span></div>
    449. 

  449. <div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_DPL_P2                                    0x04</span></div>
    450. 

  450. <div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_DPL_P1                                    0x02</span></div>
    451. 

  451. <div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_DPL_P0                                    0x01</span></div>
    452. 

  452. <div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;<span class="preprocessor"></span></div>
    453. 

  453. <div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;<span class="comment">// #define NRF24_REG_1D_FEATURE                            0x1d</span></div>
    454. 

  454. <div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;<span class="preprocessor">#define NRF24_EN_DPL                                    0x04</span></div>
    455. 

  455. <div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_EN_ACK_PAY                                0x02</span></div>
    456. 

  456. <div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define NRF24_EN_DYN_ACK                                0x01</span></div>
    457. 

  457. <div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160;<span class="preprocessor"></span></div>
    458. 

  458. <div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;<span class="comment"></span></div>
    459. 

  459. <div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160;<span class="comment">/////////////////////////////////////////////////////////////////////</span></div>
    460. 

  460. <div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;<span class="comment">/// \class NRF24 NRF24.h &lt;NRF24.h&gt;</span></div>
    461. 

  461. <div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;<span class="comment">/// \brief Send and receive addressed, reliable, acknowledged datagrams by nRF24L01.</span></div>
    462. 

  462. <div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160;<span class="comment">///</span></div>
    463. 

  463. <div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160;<span class="comment">/// This base class provides basic functions for sending and receiving addressed, reliable, </span></div>
    464. 

  464. <div class="line"><a name="l00417"></a><span class="lineno">  417</span>&#160;<span class="comment">/// automatically acknowledged and retransmitted</span></div>
    465. 

  465. <div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;<span class="comment">/// datagrams via nRF24L01 of arbitrary length to 32 octets per packet. </span></div>
    466. 

  466. <div class="line"><a name="l00419"></a><span class="lineno">  419</span>&#160;<span class="comment">/// Sender and receiver must each know the addreesses of the other, so arbitrary meshes and stars are</span></div>
    467. 

  467. <div class="line"><a name="l00420"></a><span class="lineno">  420</span>&#160;<span class="comment">/// not possible at this level.</span></div>
    468. 

  468. <div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160;<span class="comment">/// Directed replies (ie replies sent back to the original sender) are not possible </span></div>
    469. 

  469. <div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160;<span class="comment">/// (the address of the sender is not carried in the message). </span></div>
    470. 

  470. <div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;<span class="comment">/// See subclasses for support for this.</span></div>
    471. 

  471. <div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160;<span class="comment">///</span></div>
    472. 

  472. <div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160;<span class="comment">/// Subclasses may use this class to implement streams, </span></div>
    473. 

  473. <div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160;<span class="comment">/// mesh routers, repeaters, translators etc.</span></div>
    474. 

  474. <div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160;<span class="comment">///</span></div>
    475. 

  475. <div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;<span class="comment">/// On transmission, the addresses of this node defaults to 0x0000000000, unless changed by a subclass. </span></div>
    476. 

  476. <div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160;<span class="comment">///</span></div>
    477. 

  477. <div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;<span class="comment">/// The radio is configured to use Enhanced Shockburst with retransmits.</span></div>
    478. 

  478. <div class="line"><a name="l00431"></a><span class="lineno">  431</span>&#160;<span class="comment">/// TX_ADDR and RX_ADDR_P0 are set to the transmit address (ie the address of the destination for the next message</span></div>
    479. 

  479. <div class="line"><a name="l00432"></a><span class="lineno">  432</span>&#160;<span class="comment">/// RX_ADDR_P1 is set to the address of this node</span></div>
    480. 

  480. <div class="line"><a name="l00433"></a><span class="lineno">  433</span>&#160;<span class="comment">/// RX_ADDR_P2 is set to RX_ADDR_P1 with the LSbyte set to 0xff, for use as a broadcast address</span></div>
    481. 

  481. <div class="line"><a name="l00434"></a><span class="lineno">  434</span>&#160;<span class="comment">///</span></div>
    482. 

  482. <div class="line"><a name="l00435"></a><span class="lineno">  435</span>&#160;<span class="comment">/// Naturally, for any 2 radios to communicate that must be configured to use the same frequency and </span></div>
    483. 

  483. <div class="line"><a name="l00436"></a><span class="lineno">  436</span>&#160;<span class="comment">/// data rate, and with compatible addresses</span></div>
    484. 

  484. <div class="line"><a name="l00437"></a><span class="lineno"><a class="line" href="classNRF24.html">  437</a></span>&#160;<span class="comment"></span><span class="keyword">class </span><a class="code" href="classNRF24.html">NRF24</a></div>
    485. 

  485. <div class="line"><a name="l00438"></a><span class="lineno">  438</span>&#160;{</div>
    486. 

  486. <div class="line"><a name="l00439"></a><span class="lineno">  439</span>&#160;<span class="keyword">public</span>:</div>
    487. 

  487. <div class="line"><a name="l00440"></a><span class="lineno">  440</span>&#160;<span class="comment"></span></div>
    488. 

  488. <div class="line"><a name="l00441"></a><span class="lineno">  441</span>&#160;<span class="comment">    /// \brief Defines convenient values for setting data rates in setRF()</span></div>
    489. 

  489. <div class="line"><a name="l00442"></a><span class="lineno"><a class="line" href="classNRF24.html#a52d7af9188397d4a6f5dab55d4f04742">  442</a></span>&#160;<span class="comment"></span>    <span class="keyword">typedef</span> <span class="keyword">enum</span></div>
    490. 

  490. <div class="line"><a name="l00443"></a><span class="lineno">  443</span>&#160;    {</div>
    491. 

  491. <div class="line"><a name="l00444"></a><span class="lineno"><a class="line" href="classNRF24.html#a52d7af9188397d4a6f5dab55d4f04742a774c99f9cf1c98cb883d4a01c1444c52">  444</a></span>&#160;        <a class="code" href="classNRF24.html#a52d7af9188397d4a6f5dab55d4f04742a774c99f9cf1c98cb883d4a01c1444c52">NRF24DataRate1Mbps</a> = 0,   <span class="comment">///&lt; 1 Mbps</span></div>
    492. 

  492. <div class="line"><a name="l00445"></a><span class="lineno"><a class="line" href="classNRF24.html#a52d7af9188397d4a6f5dab55d4f04742aca0c89dd1b40bdc57b7026d8da54de9a">  445</a></span>&#160;<span class="comment"></span>        <a class="code" href="classNRF24.html#a52d7af9188397d4a6f5dab55d4f04742aca0c89dd1b40bdc57b7026d8da54de9a">NRF24DataRate2Mbps</a>,       <span class="comment">///&lt; 2 Mbps</span></div>
    493. 

  493. <div class="line"><a name="l00446"></a><span class="lineno"><a class="line" href="classNRF24.html#a52d7af9188397d4a6f5dab55d4f04742ae4523002495ee537f2731b61a220e3af">  446</a></span>&#160;<span class="comment"></span>        <a class="code" href="classNRF24.html#a52d7af9188397d4a6f5dab55d4f04742ae4523002495ee537f2731b61a220e3af">NRF24DataRate250kbps</a>      <span class="comment">///&lt; 250 kbps</span></div>
    494. 

  494. <div class="line"><a name="l00447"></a><span class="lineno">  447</span>&#160;<span class="comment"></span>    } <a class="code" href="classNRF24.html#a52d7af9188397d4a6f5dab55d4f04742">NRF24DataRate</a>;</div>
    495. 

  495. <div class="line"><a name="l00448"></a><span class="lineno">  448</span>&#160;<span class="comment"></span></div>
    496. 

  496. <div class="line"><a name="l00449"></a><span class="lineno">  449</span>&#160;<span class="comment">    /// \brief Convenient values for setting transmitter power in setRF()</span></div>
    497. 

  497. <div class="line"><a name="l00450"></a><span class="lineno">  450</span>&#160;<span class="comment">    /// These are designed to agree with the values for RF_PWR</span></div>
    498. 

  498. <div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;<span class="comment">    /// To be passed to setRF();</span></div>
    499. 

  499. <div class="line"><a name="l00452"></a><span class="lineno"><a class="line" href="classNRF24.html#a8386e81a9a4b824ab26e785879684c7e">  452</a></span>&#160;<span class="comment"></span>    <span class="keyword">typedef</span> <span class="keyword">enum</span></div>
    500. 

  500. <div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160;    {</div>
    501. 

  501. <div class="line"><a name="l00454"></a><span class="lineno"><a class="line" href="classNRF24.html#a8386e81a9a4b824ab26e785879684c7ea4790420d436218aa3bf4c23687664853">  454</a></span>&#160;        <a class="code" href="classNRF24.html#a8386e81a9a4b824ab26e785879684c7ea4790420d436218aa3bf4c23687664853">NRF24TransmitPowerm18dBm</a> = 0,   <span class="comment">///&lt; -18 dBm</span></div>
    502. 

  502. <div class="line"><a name="l00455"></a><span class="lineno"><a class="line" href="classNRF24.html#a8386e81a9a4b824ab26e785879684c7eacce8a36a9753c7c125ad6db450ddfff8">  455</a></span>&#160;<span class="comment"></span>        <a class="code" href="classNRF24.html#a8386e81a9a4b824ab26e785879684c7eacce8a36a9753c7c125ad6db450ddfff8">NRF24TransmitPowerm12dBm</a>,       <span class="comment">///&lt; -12 dBm</span></div>
    503. 

  503. <div class="line"><a name="l00456"></a><span class="lineno"><a class="line" href="classNRF24.html#a8386e81a9a4b824ab26e785879684c7eaf8351d714335d0c24bcbb8d3c983d5c7">  456</a></span>&#160;<span class="comment"></span>        <a class="code" href="classNRF24.html#a8386e81a9a4b824ab26e785879684c7eaf8351d714335d0c24bcbb8d3c983d5c7">NRF24TransmitPowerm6dBm</a>,        <span class="comment">///&lt; -6 dBm</span></div>
    504. 

  504. <div class="line"><a name="l00457"></a><span class="lineno"><a class="line" href="classNRF24.html#a8386e81a9a4b824ab26e785879684c7eacef1d6c037e276e6dadaff2b6056ec0c">  457</a></span>&#160;<span class="comment"></span>        <a class="code" href="classNRF24.html#a8386e81a9a4b824ab26e785879684c7eacef1d6c037e276e6dadaff2b6056ec0c">NRF24TransmitPower0dBm</a>          <span class="comment">///&lt; 0 dBm</span></div>
    505. 

  505. <div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160;<span class="comment"></span>    } <a class="code" href="classNRF24.html#a8386e81a9a4b824ab26e785879684c7e">NRF24TransmitPower</a>;</div>
    506. 

  506. <div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160;<span class="comment"></span></div>
    507. 

  507. <div class="line"><a name="l00460"></a><span class="lineno">  460</span>&#160;<span class="comment">    /// Constructor. You can have multiple instances, but each instance must have its own</span></div>
    508. 

  508. <div class="line"><a name="l00461"></a><span class="lineno">  461</span>&#160;<span class="comment">    /// chip enable and slave select pin. </span></div>
    509. 

  509. <div class="line"><a name="l00462"></a><span class="lineno">  462</span>&#160;<span class="comment">    /// After constructing, you must call init() to initialise the interface</span></div>
    510. 

  510. <div class="line"><a name="l00463"></a><span class="lineno">  463</span>&#160;<span class="comment">    /// and the radio module</span></div>
    511. 

  511. <div class="line"><a name="l00464"></a><span class="lineno">  464</span>&#160;<span class="comment">    /// \param[in] chipEnablePin the Arduino pin to use to enable the chip for4 transmit/receive</span></div>
    512. 

  512. <div class="line"><a name="l00465"></a><span class="lineno">  465</span>&#160;<span class="comment">    /// \param[in] chipSelectPin the Arduino pin number of the output to use to select the NRF24 before</span></div>
    513. 

  513. <div class="line"><a name="l00466"></a><span class="lineno">  466</span>&#160;<span class="comment">    /// accessing it</span></div>
    514. 

  514. <div class="line"><a name="l00467"></a><span class="lineno">  467</span>&#160;<span class="comment"></span>    <a class="code" href="classNRF24.html#ab0eb09c01f73bee4ff6935c0503a8ace">NRF24</a>(uint8_t chipEnablePin = 8, uint8_t chipSelectPin = SS);</div>
    515. 

  515. <div class="line"><a name="l00468"></a><span class="lineno">  468</span>&#160;  <span class="comment"></span></div>
    516. 

  516. <div class="line"><a name="l00469"></a><span class="lineno">  469</span>&#160;<span class="comment">    /// Initialises this instance and the radio module connected to it.</span></div>
    517. 

  517. <div class="line"><a name="l00470"></a><span class="lineno">  470</span>&#160;<span class="comment">    /// The following steps are taken:g</span></div>
    518. 

  518. <div class="line"><a name="l00471"></a><span class="lineno">  471</span>&#160;<span class="comment">    /// - Set the chip enable and chip select pins to output LOW, HIGH respectively.</span></div>
    519. 

  519. <div class="line"><a name="l00472"></a><span class="lineno">  472</span>&#160;<span class="comment">    /// - Initialise the SPI output pins</span></div>
    520. 

  520. <div class="line"><a name="l00473"></a><span class="lineno">  473</span>&#160;<span class="comment">    /// - Initialise the SPI interface library to 8MHz (Hint, if you want to lower</span></div>
    521. 

  521. <div class="line"><a name="l00474"></a><span class="lineno">  474</span>&#160;<span class="comment">    /// the SPI frequency (perhaps where you have other SPI shields, low voltages etc), </span></div>
    522. 

  522. <div class="line"><a name="l00475"></a><span class="lineno">  475</span>&#160;<span class="comment">    /// call SPI.setClockDivider() after init()).</span></div>
    523. 

  523. <div class="line"><a name="l00476"></a><span class="lineno">  476</span>&#160;<span class="comment">    /// -Flush the receiver and transmitter buffers</span></div>
    524. 

  524. <div class="line"><a name="l00477"></a><span class="lineno">  477</span>&#160;<span class="comment">    /// - Set the radio to receive with powerUpRx();</span></div>
    525. 

  525. <div class="line"><a name="l00478"></a><span class="lineno">  478</span>&#160;<span class="comment">    /// \return  true if everything was successful</span></div>
    526. 

  526. <div class="line"><a name="l00479"></a><span class="lineno">  479</span>&#160;<span class="comment"></span>    <span class="keywordtype">boolean</span>        <a class="code" href="classNRF24.html#a6e98cf508939240c1805245170a995f6">init</a>();</div>
    527. 

  527. <div class="line"><a name="l00480"></a><span class="lineno">  480</span>&#160;<span class="comment"></span></div>
    528. 

  528. <div class="line"><a name="l00481"></a><span class="lineno">  481</span>&#160;<span class="comment">    /// Execute an SPI command that requires neither reading or writing</span></div>
    529. 

  529. <div class="line"><a name="l00482"></a><span class="lineno">  482</span>&#160;<span class="comment">    /// \param[in] command the SPI command to execute, one of NRF24_COMMAND_*</span></div>
    530. 

  530. <div class="line"><a name="l00483"></a><span class="lineno">  483</span>&#160;<span class="comment">    /// \return the value of the device status register</span></div>
    531. 

  531. <div class="line"><a name="l00484"></a><span class="lineno">  484</span>&#160;<span class="comment"></span>    uint8_t <a class="code" href="classNRF24.html#a08ae66610a928a779c0b256e782128b5">spiCommand</a>(uint8_t command);</div>
    532. 

  532. <div class="line"><a name="l00485"></a><span class="lineno">  485</span>&#160;<span class="comment"></span></div>
    533. 

  533. <div class="line"><a name="l00486"></a><span class="lineno">  486</span>&#160;<span class="comment">    /// Reads a single command byte from the NRF24</span></div>
    534. 

  534. <div class="line"><a name="l00487"></a><span class="lineno">  487</span>&#160;<span class="comment">    /// \param[in] command Command number, one of NRF24_COMMAND_*</span></div>
    535. 

  535. <div class="line"><a name="l00488"></a><span class="lineno">  488</span>&#160;<span class="comment">    /// \return the single byte returned by the command</span></div>
    536. 

  536. <div class="line"><a name="l00489"></a><span class="lineno">  489</span>&#160;<span class="comment"></span>    uint8_t        <a class="code" href="classNRF24.html#ab2f002c33ec719dfdd3ae70d70559254">spiRead</a>(uint8_t command);</div>
    537. 

  537. <div class="line"><a name="l00490"></a><span class="lineno">  490</span>&#160;<span class="comment"></span></div>
    538. 

  538. <div class="line"><a name="l00491"></a><span class="lineno">  491</span>&#160;<span class="comment">    /// Writes a single command byte to the NRF24</span></div>
    539. 

  539. <div class="line"><a name="l00492"></a><span class="lineno">  492</span>&#160;<span class="comment">    /// \param[in] command Command number, one of NRF24_COMMAND_*</span></div>
    540. 

  540. <div class="line"><a name="l00493"></a><span class="lineno">  493</span>&#160;<span class="comment">    /// \param[in] val The value to write</span></div>
    541. 

  541. <div class="line"><a name="l00494"></a><span class="lineno">  494</span>&#160;<span class="comment">    /// \return the value of the device status register</span></div>
    542. 

  542. <div class="line"><a name="l00495"></a><span class="lineno">  495</span>&#160;<span class="comment"></span>    uint8_t        <a class="code" href="classNRF24.html#a16f168ffe059120ba696936cd6bd76f1">spiWrite</a>(uint8_t command, uint8_t val);</div>
    543. 

  543. <div class="line"><a name="l00496"></a><span class="lineno">  496</span>&#160;<span class="comment"></span></div>
    544. 

  544. <div class="line"><a name="l00497"></a><span class="lineno">  497</span>&#160;<span class="comment">    /// Reads a number of consecutive bytes from a command using burst read mode</span></div>
    545. 

  545. <div class="line"><a name="l00498"></a><span class="lineno">  498</span>&#160;<span class="comment">    /// \param[in] command Command number of NRF24_COMMAND_*</span></div>
    546. 

  546. <div class="line"><a name="l00499"></a><span class="lineno">  499</span>&#160;<span class="comment">    /// \param[in] dest Array to write the bytes returned by the command to. Must be at least len bytes</span></div>
    547. 

  547. <div class="line"><a name="l00500"></a><span class="lineno">  500</span>&#160;<span class="comment">    /// \param[in] len Number of bytes to read</span></div>
    548. 

  548. <div class="line"><a name="l00501"></a><span class="lineno">  501</span>&#160;<span class="comment">    /// \return the value of the device status register</span></div>
    549. 

  549. <div class="line"><a name="l00502"></a><span class="lineno">  502</span>&#160;<span class="comment"></span>    <span class="keywordtype">void</span>           <a class="code" href="classNRF24.html#a448aad6cda19f068009106aa5f6a7e6a">spiBurstRead</a>(uint8_t command, uint8_t* dest, uint8_t len);</div>
    550. 

  550. <div class="line"><a name="l00503"></a><span class="lineno">  503</span>&#160;<span class="comment"></span></div>
    551. 

  551. <div class="line"><a name="l00504"></a><span class="lineno">  504</span>&#160;<span class="comment">    /// Write a number of consecutive bytes to a command using burst write mode</span></div>
    552. 

  552. <div class="line"><a name="l00505"></a><span class="lineno">  505</span>&#160;<span class="comment">    /// \param[in] command Command number of the first register, one of NRF24_COMMAND_*</span></div>
    553. 

  553. <div class="line"><a name="l00506"></a><span class="lineno">  506</span>&#160;<span class="comment">    /// \param[in] src Array of bytes to write. Must be at least len bytes</span></div>
    554. 

  554. <div class="line"><a name="l00507"></a><span class="lineno">  507</span>&#160;<span class="comment">    /// \param[in] len Number of bytes to write</span></div>
    555. 

  555. <div class="line"><a name="l00508"></a><span class="lineno">  508</span>&#160;<span class="comment">    /// \return the value of the device status register</span></div>
    556. 

  556. <div class="line"><a name="l00509"></a><span class="lineno">  509</span>&#160;<span class="comment"></span>    uint8_t        <a class="code" href="classNRF24.html#a01161d0ba54c409e62ad670b9eceb73d">spiBurstWrite</a>(uint8_t command, uint8_t* src, uint8_t len);</div>
    557. 

  557. <div class="line"><a name="l00510"></a><span class="lineno">  510</span>&#160;<span class="comment"></span></div>
    558. 

  558. <div class="line"><a name="l00511"></a><span class="lineno">  511</span>&#160;<span class="comment">    /// Reads a single register from the NRF24</span></div>
    559. 

  559. <div class="line"><a name="l00512"></a><span class="lineno">  512</span>&#160;<span class="comment">    /// \param[in] reg Register number, one of NRF24_REG_*</span></div>
    560. 

  560. <div class="line"><a name="l00513"></a><span class="lineno">  513</span>&#160;<span class="comment">    /// \return The value of the register</span></div>
    561. 

  561. <div class="line"><a name="l00514"></a><span class="lineno">  514</span>&#160;<span class="comment"></span>    uint8_t        <a class="code" href="classNRF24.html#a264f427858362e106705d92152bc634e">spiReadRegister</a>(uint8_t reg);</div>
    562. 

  562. <div class="line"><a name="l00515"></a><span class="lineno">  515</span>&#160;<span class="comment"></span></div>
    563. 

  563. <div class="line"><a name="l00516"></a><span class="lineno">  516</span>&#160;<span class="comment">    /// Writes a single byte to the NRF24, and at the ame time reads the current STATUS register</span></div>
    564. 

  564. <div class="line"><a name="l00517"></a><span class="lineno">  517</span>&#160;<span class="comment">    /// \param[in] reg Register number, one of NRF24_REG_*</span></div>
    565. 

  565. <div class="line"><a name="l00518"></a><span class="lineno">  518</span>&#160;<span class="comment">    /// \param[in] val The value to write</span></div>
    566. 

  566. <div class="line"><a name="l00519"></a><span class="lineno">  519</span>&#160;<span class="comment">    /// \return the current STATUS (read while the command is sent)</span></div>
    567. 

  567. <div class="line"><a name="l00520"></a><span class="lineno">  520</span>&#160;<span class="comment"></span>    uint8_t        <a class="code" href="classNRF24.html#a81931bc1679b213b1cb1ae65b8357985">spiWriteRegister</a>(uint8_t reg, uint8_t val);</div>
    568. 

  568. <div class="line"><a name="l00521"></a><span class="lineno">  521</span>&#160;<span class="comment"></span></div>
    569. 

  569. <div class="line"><a name="l00522"></a><span class="lineno">  522</span>&#160;<span class="comment">    /// Reads a number of consecutive registers from the NRF24 using burst read mode</span></div>
    570. 

  570. <div class="line"><a name="l00523"></a><span class="lineno">  523</span>&#160;<span class="comment">    /// \param[in] reg Register number of the first register, one of NRF24_REG_*</span></div>
    571. 

  571. <div class="line"><a name="l00524"></a><span class="lineno">  524</span>&#160;<span class="comment">    /// \param[in] dest Array to write the register values to. Must be at least len bytes</span></div>
    572. 

  572. <div class="line"><a name="l00525"></a><span class="lineno">  525</span>&#160;<span class="comment">    /// \param[in] len Number of bytes to read</span></div>
    573. 

  573. <div class="line"><a name="l00526"></a><span class="lineno">  526</span>&#160;<span class="comment">    /// \return the value of the device status register</span></div>
    574. 

  574. <div class="line"><a name="l00527"></a><span class="lineno">  527</span>&#160;<span class="comment"></span>    <span class="keywordtype">void</span>           <a class="code" href="classNRF24.html#abc48bb5a86d0bb498c753dc47cea8daa">spiBurstReadRegister</a>(uint8_t reg, uint8_t* dest, uint8_t len);</div>
    575. 

  575. <div class="line"><a name="l00528"></a><span class="lineno">  528</span>&#160;<span class="comment"></span></div>
    576. 

  576. <div class="line"><a name="l00529"></a><span class="lineno">  529</span>&#160;<span class="comment">    /// Write a number of consecutive registers using burst write mode</span></div>
    577. 

  577. <div class="line"><a name="l00530"></a><span class="lineno">  530</span>&#160;<span class="comment">    /// \param[in] reg Register number of the first register, one of NRF24_REG_*</span></div>
    578. 

  578. <div class="line"><a name="l00531"></a><span class="lineno">  531</span>&#160;<span class="comment">    /// \param[in] src Array of new register values to write. Must be at least len bytes</span></div>
    579. 

  579. <div class="line"><a name="l00532"></a><span class="lineno">  532</span>&#160;<span class="comment">    /// \param[in] len Number of bytes to write</span></div>
    580. 

  580. <div class="line"><a name="l00533"></a><span class="lineno">  533</span>&#160;<span class="comment">    /// \return the value of the device status register</span></div>
    581. 

  581. <div class="line"><a name="l00534"></a><span class="lineno">  534</span>&#160;<span class="comment"></span>    uint8_t        <a class="code" href="classNRF24.html#a8562055be6ba65ca8fc292be5f8abc5a">spiBurstWriteRegister</a>(uint8_t reg, uint8_t* src, uint8_t len);</div>
    582. 

  582. <div class="line"><a name="l00535"></a><span class="lineno">  535</span>&#160;<span class="comment"></span></div>
    583. 

  583. <div class="line"><a name="l00536"></a><span class="lineno">  536</span>&#160;<span class="comment">    /// Reads and returns the device status register NRF24_REG_02_DEVICE_STATUS</span></div>
    584. 

  584. <div class="line"><a name="l00537"></a><span class="lineno">  537</span>&#160;<span class="comment">    /// \return The value of the device status register</span></div>
    585. 

  585. <div class="line"><a name="l00538"></a><span class="lineno">  538</span>&#160;<span class="comment"></span>    uint8_t        <a class="code" href="classNRF24.html#a9940479d33d554cab35d50b99112a166">statusRead</a>();</div>
    586. 

  586. <div class="line"><a name="l00539"></a><span class="lineno">  539</span>&#160;  <span class="comment"></span></div>
    587. 

  587. <div class="line"><a name="l00540"></a><span class="lineno">  540</span>&#160;<span class="comment">    /// Flush the TX FIFOs</span></div>
    588. 

  588. <div class="line"><a name="l00541"></a><span class="lineno">  541</span>&#160;<span class="comment">    /// \return the value of the device status register</span></div>
    589. 

  589. <div class="line"><a name="l00542"></a><span class="lineno">  542</span>&#160;<span class="comment"></span>    uint8_t <a class="code" href="classNRF24.html#a644f3b4fd446438fb340b52df4216ba9">flushTx</a>();</div>
    590. 

  590. <div class="line"><a name="l00543"></a><span class="lineno">  543</span>&#160;<span class="comment"></span></div>
    591. 

  591. <div class="line"><a name="l00544"></a><span class="lineno">  544</span>&#160;<span class="comment">    /// Flush the RX FIFOs</span></div>
    592. 

  592. <div class="line"><a name="l00545"></a><span class="lineno">  545</span>&#160;<span class="comment">    /// \return the value of the device status register</span></div>
    593. 

  593. <div class="line"><a name="l00546"></a><span class="lineno">  546</span>&#160;<span class="comment"></span>    uint8_t <a class="code" href="classNRF24.html#a9d3d0d432b09d3403a52aa9a78d3f848">flushRx</a>();</div>
    594. 

  594. <div class="line"><a name="l00547"></a><span class="lineno">  547</span>&#160;<span class="comment"></span></div>
    595. 

  595. <div class="line"><a name="l00548"></a><span class="lineno">  548</span>&#160;<span class="comment">    /// Sets the transmit and receive channel number.</span></div>
    596. 

  596. <div class="line"><a name="l00549"></a><span class="lineno">  549</span>&#160;<span class="comment">    /// The frequency used is (2400 + channel) MHz</span></div>
    597. 

  597. <div class="line"><a name="l00550"></a><span class="lineno">  550</span>&#160;<span class="comment">    /// \return true on success</span></div>
    598. 

  598. <div class="line"><a name="l00551"></a><span class="lineno">  551</span>&#160;<span class="comment"></span>    <span class="keywordtype">boolean</span> <a class="code" href="classNRF24.html#a3fa90005f98eb2744a533899f9b7e023">setChannel</a>(uint8_t channel);</div>
    599. 

  599. <div class="line"><a name="l00552"></a><span class="lineno">  552</span>&#160;<span class="comment"></span></div>
    600. 

  600. <div class="line"><a name="l00553"></a><span class="lineno">  553</span>&#160;<span class="comment">    /// Sets the chip configuration that will be used to set</span></div>
    601. 

  601. <div class="line"><a name="l00554"></a><span class="lineno">  554</span>&#160;<span class="comment">    /// the NRF24 NRF24_REG_00_CONFIG register. This allows you to change some</span></div>
    602. 

  602. <div class="line"><a name="l00555"></a><span class="lineno">  555</span>&#160;<span class="comment">    /// chip configuration for compatibility with libraries other than this one.</span></div>
    603. 

  603. <div class="line"><a name="l00556"></a><span class="lineno">  556</span>&#160;<span class="comment">    /// You should not normally need to call this.</span></div>
    604. 

  604. <div class="line"><a name="l00557"></a><span class="lineno">  557</span>&#160;<span class="comment">    /// Defaults to NRF24_EN_CRC, which is the standard configuraiton for this library.</span></div>
    605. 

  605. <div class="line"><a name="l00558"></a><span class="lineno">  558</span>&#160;<span class="comment">    /// \param[in] configuration The chip configuration to be used.</span></div>
    606. 

  606. <div class="line"><a name="l00559"></a><span class="lineno">  559</span>&#160;<span class="comment">    /// \return true on success</span></div>
    607. 

  607. <div class="line"><a name="l00560"></a><span class="lineno">  560</span>&#160;<span class="comment"></span>    <span class="keywordtype">boolean</span> <a class="code" href="classNRF24.html#a790d69e5cb1039fb2924f9405e30e250">setConfiguration</a>(uint8_t configuration);</div>
    608. 

  608. <div class="line"><a name="l00561"></a><span class="lineno">  561</span>&#160;<span class="comment"></span></div>
    609. 

  609. <div class="line"><a name="l00562"></a><span class="lineno">  562</span>&#160;<span class="comment">    /// Sets the first len bytes of the address for the given NRF24 receiver pipe</span></div>
    610. 

  610. <div class="line"><a name="l00563"></a><span class="lineno">  563</span>&#160;<span class="comment">    /// This is an internal function and is not normally used by appications, but</span></div>
    611. 

  611. <div class="line"><a name="l00564"></a><span class="lineno">  564</span>&#160;<span class="comment">    /// can be used for specialised applications.</span></div>
    612. 

  612. <div class="line"><a name="l00565"></a><span class="lineno">  565</span>&#160;<span class="comment">    /// \param[in] pipe The index of the pipe to set, from 0 to 5</span></div>
    613. 

  613. <div class="line"><a name="l00566"></a><span class="lineno">  566</span>&#160;<span class="comment">    /// \param[in] address The new address for receiving. Must match the transmit address </span></div>
    614. 

  614. <div class="line"><a name="l00567"></a><span class="lineno">  567</span>&#160;<span class="comment">    /// of the transmitting node</span></div>
    615. 

  615. <div class="line"><a name="l00568"></a><span class="lineno">  568</span>&#160;<span class="comment">    /// \param[in] len Number of bytes of receive address to set.</span></div>
    616. 

  616. <div class="line"><a name="l00569"></a><span class="lineno">  569</span>&#160;<span class="comment">    /// \return true on success</span></div>
    617. 

  617. <div class="line"><a name="l00570"></a><span class="lineno">  570</span>&#160;<span class="comment"></span>    <span class="keywordtype">boolean</span> <a class="code" href="classNRF24.html#a28b29969592f9f59c267ae7ffa020b2b">setPipeAddress</a>(uint8_t pipe, uint8_t* address, uint8_t len);</div>
    618. 

  618. <div class="line"><a name="l00571"></a><span class="lineno">  571</span>&#160;<span class="comment"></span></div>
    619. 

  619. <div class="line"><a name="l00572"></a><span class="lineno">  572</span>&#160;<span class="comment">    /// Set the Auto Retransmit Delay and Auto Retransmit Count</span></div>
    620. 

  620. <div class="line"><a name="l00573"></a><span class="lineno">  573</span>&#160;<span class="comment">    /// for Auto retransmission (ART). See section 7.4.2 in the NRF24 documentation</span></div>
    621. 

  621. <div class="line"><a name="l00574"></a><span class="lineno">  574</span>&#160;<span class="comment">    /// It may be very important to set an appropriate delay and count</span></div>
    622. 

  622. <div class="line"><a name="l00575"></a><span class="lineno">  575</span>&#160;<span class="comment">    /// for your application, especially with</span></div>
    623. 

  623. <div class="line"><a name="l00576"></a><span class="lineno">  576</span>&#160;<span class="comment">    /// 250kbps (i.e. slow) data rate. The defaults are OK for faster data rates. If</span></div>
    624. 

  624. <div class="line"><a name="l00577"></a><span class="lineno">  577</span>&#160;<span class="comment">    /// the delay is too short, the symptoms wil be unreliable transmission, or tranmsission failures</span></div>
    625. 

  625. <div class="line"><a name="l00578"></a><span class="lineno">  578</span>&#160;<span class="comment">    /// \param[in] delay The number of 250 microsecond intervals to wait for an ACK.</span></div>
    626. 

  626. <div class="line"><a name="l00579"></a><span class="lineno">  579</span>&#160;<span class="comment">    /// \param[in] count The number of retries to us.</span></div>
    627. 

  627. <div class="line"><a name="l00580"></a><span class="lineno">  580</span>&#160;<span class="comment">    /// \return true on success</span></div>
    628. 

  628. <div class="line"><a name="l00581"></a><span class="lineno">  581</span>&#160;<span class="comment"></span>    <span class="keywordtype">boolean</span> <a class="code" href="classNRF24.html#a1ac9bfce3833725b8b66d9875a8bc00e">setRetry</a>(uint8_t delay, uint8_t count = 3);</div>
    629. 

  629. <div class="line"><a name="l00582"></a><span class="lineno">  582</span>&#160;<span class="comment"></span></div>
    630. 

  630. <div class="line"><a name="l00583"></a><span class="lineno">  583</span>&#160;<span class="comment">    /// Sets the first len bytes of the address of this node</span></div>
    631. 

  631. <div class="line"><a name="l00584"></a><span class="lineno">  584</span>&#160;<span class="comment">    /// Normally len is the same length as setAddressLength, but can be smaller in order to set the</span></div>
    632. 

  632. <div class="line"><a name="l00585"></a><span class="lineno">  585</span>&#160;<span class="comment">    /// least significant bytes of the address</span></div>
    633. 

  633. <div class="line"><a name="l00586"></a><span class="lineno">  586</span>&#160;<span class="comment">    /// \param[in] address The new address for receiving. Must match the setTransmitAddress of the transmitting node.</span></div>
    634. 

  634. <div class="line"><a name="l00587"></a><span class="lineno">  587</span>&#160;<span class="comment">    /// \param[in] len Number of bytes of receive address to set.</span></div>
    635. 

  635. <div class="line"><a name="l00588"></a><span class="lineno">  588</span>&#160;<span class="comment">    /// \return true on success</span></div>
    636. 

  636. <div class="line"><a name="l00589"></a><span class="lineno">  589</span>&#160;<span class="comment"></span>    <span class="keywordtype">boolean</span> <a class="code" href="classNRF24.html#ade21e0bd4f92d0dfa45909bbbb0e4b01">setThisAddress</a>(uint8_t* address, uint8_t len);</div>
    637. 

  637. <div class="line"><a name="l00590"></a><span class="lineno">  590</span>&#160;<span class="comment"></span></div>
    638. 

  638. <div class="line"><a name="l00591"></a><span class="lineno">  591</span>&#160;<span class="comment">    /// Sets the next transmit address</span></div>
    639. 

  639. <div class="line"><a name="l00592"></a><span class="lineno">  592</span>&#160;<span class="comment">    /// \param[in] address The new address for transmitting. Must match the setThisAddress of the receiving node.</span></div>
    640. 

  640. <div class="line"><a name="l00593"></a><span class="lineno">  593</span>&#160;<span class="comment">    /// \param[in] len Number of bytes of receive address to set.</span></div>
    641. 

  641. <div class="line"><a name="l00594"></a><span class="lineno">  594</span>&#160;<span class="comment">    /// \return true on success</span></div>
    642. 

  642. <div class="line"><a name="l00595"></a><span class="lineno">  595</span>&#160;<span class="comment"></span>    <span class="keywordtype">boolean</span> <a class="code" href="classNRF24.html#a7b40c4c481bddf343acdac5179fddc75">setTransmitAddress</a>(uint8_t* address, uint8_t len);</div>
    643. 

  643. <div class="line"><a name="l00596"></a><span class="lineno">  596</span>&#160;<span class="comment"></span></div>
    644. 

  644. <div class="line"><a name="l00597"></a><span class="lineno">  597</span>&#160;<span class="comment">    /// Sets the number of bytes transmitted </span></div>
    645. 

  645. <div class="line"><a name="l00598"></a><span class="lineno">  598</span>&#160;<span class="comment">    /// in each payload</span></div>
    646. 

  646. <div class="line"><a name="l00599"></a><span class="lineno">  599</span>&#160;<span class="comment">    /// \param[in] size Size of the transmitted payload in bytes</span></div>
    647. 

  647. <div class="line"><a name="l00600"></a><span class="lineno">  600</span>&#160;<span class="comment">    /// \return true on success</span></div>
    648. 

  648. <div class="line"><a name="l00601"></a><span class="lineno">  601</span>&#160;<span class="comment"></span>    <span class="keywordtype">boolean</span> <a class="code" href="classNRF24.html#adb2fbd1d1aadaad1e9b268508149b6c8">setPayloadSize</a>(uint8_t size);</div>
    649. 

  649. <div class="line"><a name="l00602"></a><span class="lineno">  602</span>&#160;<span class="comment"></span></div>
    650. 

  650. <div class="line"><a name="l00603"></a><span class="lineno">  603</span>&#160;<span class="comment">    /// Sets the data rate and tranmitter power to use</span></div>
    651. 

  651. <div class="line"><a name="l00604"></a><span class="lineno">  604</span>&#160;<span class="comment">    /// \param [in] data_rate The data rate to use for all packets transmitted and received. One of NRF24DataRate</span></div>
    652. 

  652. <div class="line"><a name="l00605"></a><span class="lineno">  605</span>&#160;<span class="comment">    /// \param [in] power Transmitter power. One of NRF24TransmitPower.</span></div>
    653. 

  653. <div class="line"><a name="l00606"></a><span class="lineno">  606</span>&#160;<span class="comment">    /// \return true on success</span></div>
    654. 

  654. <div class="line"><a name="l00607"></a><span class="lineno">  607</span>&#160;<span class="comment"></span>    <span class="keywordtype">boolean</span> <a class="code" href="classNRF24.html#a3453db8390d5be4aa99d8c7fde3062a4">setRF</a>(uint8_t data_rate, uint8_t power);</div>
    655. 

  655. <div class="line"><a name="l00608"></a><span class="lineno">  608</span>&#160;<span class="comment"></span></div>
    656. 

  656. <div class="line"><a name="l00609"></a><span class="lineno">  609</span>&#160;<span class="comment">    /// Sets the radio in power down mode.</span></div>
    657. 

  657. <div class="line"><a name="l00610"></a><span class="lineno">  610</span>&#160;<span class="comment">    /// Sets chip enable to LOW.</span></div>
    658. 

  658. <div class="line"><a name="l00611"></a><span class="lineno">  611</span>&#160;<span class="comment">    /// \return true on success</span></div>
    659. 

  659. <div class="line"><a name="l00612"></a><span class="lineno">  612</span>&#160;<span class="comment"></span>    <span class="keywordtype">boolean</span> <a class="code" href="classNRF24.html#a5f40f4c8dcb3b5e097510dc6396c7f9b">powerDown</a>();</div>
    660. 

  660. <div class="line"><a name="l00613"></a><span class="lineno">  613</span>&#160;<span class="comment"></span></div>
    661. 

  661. <div class="line"><a name="l00614"></a><span class="lineno">  614</span>&#160;<span class="comment">    /// Sets the radio in RX mode.</span></div>
    662. 

  662. <div class="line"><a name="l00615"></a><span class="lineno">  615</span>&#160;<span class="comment">    /// Sets chip enable to HIGH to enable the chip in RX mode.</span></div>
    663. 

  663. <div class="line"><a name="l00616"></a><span class="lineno">  616</span>&#160;<span class="comment">    /// \return true on success</span></div>
    664. 

  664. <div class="line"><a name="l00617"></a><span class="lineno">  617</span>&#160;<span class="comment"></span>    <span class="keywordtype">boolean</span> <a class="code" href="classNRF24.html#a9e15babbfa487da3425b19c60a93c057">powerUpRx</a>();</div>
    665. 

  665. <div class="line"><a name="l00618"></a><span class="lineno">  618</span>&#160;<span class="comment"></span></div>
    666. 

  666. <div class="line"><a name="l00619"></a><span class="lineno">  619</span>&#160;<span class="comment">    /// Sets the radio in TX mode.</span></div>
    667. 

  667. <div class="line"><a name="l00620"></a><span class="lineno">  620</span>&#160;<span class="comment">    /// Pulses the chip enable LOW then HIGH to enable the chip in TX mode.</span></div>
    668. 

  668. <div class="line"><a name="l00621"></a><span class="lineno">  621</span>&#160;<span class="comment">    /// \return true on success</span></div>
    669. 

  669. <div class="line"><a name="l00622"></a><span class="lineno">  622</span>&#160;<span class="comment"></span>    <span class="keywordtype">boolean</span> <a class="code" href="classNRF24.html#a796cb1901211284a958197d657d6f164">powerUpTx</a>();</div>
    670. 

  670. <div class="line"><a name="l00623"></a><span class="lineno">  623</span>&#160;<span class="comment"></span></div>
    671. 

  671. <div class="line"><a name="l00624"></a><span class="lineno">  624</span>&#160;<span class="comment">    /// Sends data to the address set by setTransmitAddress()</span></div>
    672. 

  672. <div class="line"><a name="l00625"></a><span class="lineno">  625</span>&#160;<span class="comment">    /// Sets the radio to TX mode</span></div>
    673. 

  673. <div class="line"><a name="l00626"></a><span class="lineno">  626</span>&#160;<span class="comment">    /// \param [in] data Data bytes to send.</span></div>
    674. 

  674. <div class="line"><a name="l00627"></a><span class="lineno">  627</span>&#160;<span class="comment">    /// \param [in] len Number of data bytes to set in teh TX buffer. The actual size of the </span></div>
    675. 

  675. <div class="line"><a name="l00628"></a><span class="lineno">  628</span>&#160;<span class="comment">    /// transmitted data payload is set by setPayloadSize</span></div>
    676. 

  676. <div class="line"><a name="l00629"></a><span class="lineno">  629</span>&#160;<span class="comment">    /// \param [in] noack Optional parameter if true sends the message NOACK mode. Requires that the NOACK feature be </span></div>
    677. 

  677. <div class="line"><a name="l00630"></a><span class="lineno">  630</span>&#160;<span class="comment">    ///  enabled with spiWriteRegister(NRF24_REG_1D_FEATURE, NRF24_EN_DYN_ACK);</span></div>
    678. 

  678. <div class="line"><a name="l00631"></a><span class="lineno">  631</span>&#160;<span class="comment">    /// \return true on success</span></div>
    679. 

  679. <div class="line"><a name="l00632"></a><span class="lineno">  632</span>&#160;<span class="comment"></span>    <span class="keywordtype">boolean</span> <a class="code" href="classNRF24.html#aad280539b80b28e55ab3187714bc7f2f">send</a>(uint8_t* data, uint8_t len, <span class="keywordtype">boolean</span> noack = <span class="keyword">false</span>);</div>
    680. 

  680. <div class="line"><a name="l00633"></a><span class="lineno">  633</span>&#160;<span class="comment"></span></div>
    681. 

  681. <div class="line"><a name="l00634"></a><span class="lineno">  634</span>&#160;<span class="comment">    /// Blocks until the current message (if any) </span></div>
    682. 

  682. <div class="line"><a name="l00635"></a><span class="lineno">  635</span>&#160;<span class="comment">    /// has been transmitted</span></div>
    683. 

  683. <div class="line"><a name="l00636"></a><span class="lineno">  636</span>&#160;<span class="comment">    /// \return true on success, false if the Max retries were exceeded, or if the chip is not in transmit mode.</span></div>
    684. 

  684. <div class="line"><a name="l00637"></a><span class="lineno">  637</span>&#160;<span class="comment"></span>    <span class="keywordtype">boolean</span> <a class="code" href="classNRF24.html#a78a011cddedb14b8764ad5ea760c28ae">waitPacketSent</a>();</div>
    685. 

  685. <div class="line"><a name="l00638"></a><span class="lineno">  638</span>&#160;<span class="comment"></span></div>
    686. 

  686. <div class="line"><a name="l00639"></a><span class="lineno">  639</span>&#160;<span class="comment">    /// Indicates if the chip is in transmit mode and </span></div>
    687. 

  687. <div class="line"><a name="l00640"></a><span class="lineno">  640</span>&#160;<span class="comment">    /// there is a packet currently being transmitted</span></div>
    688. 

  688. <div class="line"><a name="l00641"></a><span class="lineno">  641</span>&#160;<span class="comment">    /// \return true if the chip is in transmit mode and there is a transmission in progress</span></div>
    689. 

  689. <div class="line"><a name="l00642"></a><span class="lineno">  642</span>&#160;<span class="comment"></span>    <span class="keywordtype">boolean</span> <a class="code" href="classNRF24.html#aaff7453d951c74e87ca845e708742252">isSending</a>();</div>
    690. 

  690. <div class="line"><a name="l00643"></a><span class="lineno">  643</span>&#160;<span class="comment"></span></div>
    691. 

  691. <div class="line"><a name="l00644"></a><span class="lineno">  644</span>&#160;<span class="comment">    /// Prints the value of all chip registers</span></div>
    692. 

  692. <div class="line"><a name="l00645"></a><span class="lineno">  645</span>&#160;<span class="comment">    /// for debugging purposes</span></div>
    693. 

  693. <div class="line"><a name="l00646"></a><span class="lineno">  646</span>&#160;<span class="comment">    /// \return true on success</span></div>
    694. 

  694. <div class="line"><a name="l00647"></a><span class="lineno">  647</span>&#160;<span class="comment"></span>    <span class="keywordtype">boolean</span> <a class="code" href="classNRF24.html#ab6b14a05c78e40f0491793dcb73c8274">printRegisters</a>();</div>
    695. 

  695. <div class="line"><a name="l00648"></a><span class="lineno">  648</span>&#160;<span class="comment"></span></div>
    696. 

  696. <div class="line"><a name="l00649"></a><span class="lineno">  649</span>&#160;<span class="comment">    /// Checks whether a received message is available.</span></div>
    697. 

  697. <div class="line"><a name="l00650"></a><span class="lineno">  650</span>&#160;<span class="comment">    /// This can be called multiple times in a timeout loop</span></div>
    698. 

  698. <div class="line"><a name="l00651"></a><span class="lineno">  651</span>&#160;<span class="comment">    /// \return true if a complete, valid message has been received and is able to be retrieved by</span></div>
    699. 

  699. <div class="line"><a name="l00652"></a><span class="lineno">  652</span>&#160;<span class="comment">    /// recv()</span></div>
    700. 

  700. <div class="line"><a name="l00653"></a><span class="lineno">  653</span>&#160;<span class="comment"></span>    <span class="keywordtype">boolean</span>        <a class="code" href="classNRF24.html#a84a25d5654902ed6b69d3a0de9422cfd">available</a>();</div>
    701. 

  701. <div class="line"><a name="l00654"></a><span class="lineno">  654</span>&#160;<span class="comment"></span></div>
    702. 

  702. <div class="line"><a name="l00655"></a><span class="lineno">  655</span>&#160;<span class="comment">    /// Starts the receiver and blocks until a valid received </span></div>
    703. 

  703. <div class="line"><a name="l00656"></a><span class="lineno">  656</span>&#160;<span class="comment">    /// message is available.</span></div>
    704. 

  704. <div class="line"><a name="l00657"></a><span class="lineno">  657</span>&#160;<span class="comment"></span>    <span class="keywordtype">void</span>           <a class="code" href="classNRF24.html#a5260f3e5eeb911e720290e652f628ab5">waitAvailable</a>();</div>
    705. 

  705. <div class="line"><a name="l00658"></a><span class="lineno">  658</span>&#160;<span class="comment"></span></div>
    706. 

  706. <div class="line"><a name="l00659"></a><span class="lineno">  659</span>&#160;<span class="comment">    /// Starts the receiver and blocks until a received message is available or a timeout</span></div>
    707. 

  707. <div class="line"><a name="l00660"></a><span class="lineno">  660</span>&#160;<span class="comment">    /// \param[in] timeout Maximum time to wait in milliseconds.</span></div>
    708. 

  708. <div class="line"><a name="l00661"></a><span class="lineno">  661</span>&#160;<span class="comment">    /// \return true if a message is available</span></div>
    709. 

  709. <div class="line"><a name="l00662"></a><span class="lineno">  662</span>&#160;<span class="comment"></span>    <span class="keywordtype">bool</span>           <a class="code" href="classNRF24.html#ae36ca859ea942a6e9480e8747a27921e">waitAvailableTimeout</a>(uint16_t timeout);</div>
    710. 

  710. <div class="line"><a name="l00663"></a><span class="lineno">  663</span>&#160;<span class="comment"></span></div>
    711. 

  711. <div class="line"><a name="l00664"></a><span class="lineno">  664</span>&#160;<span class="comment">    /// Turns the receiver on if it not already on.</span></div>
    712. 

  712. <div class="line"><a name="l00665"></a><span class="lineno">  665</span>&#160;<span class="comment">    /// If there is a valid message available, copy it to buf and return true</span></div>
    713. 

  713. <div class="line"><a name="l00666"></a><span class="lineno">  666</span>&#160;<span class="comment">    /// else return false.</span></div>
    714. 

  714. <div class="line"><a name="l00667"></a><span class="lineno">  667</span>&#160;<span class="comment">    /// If a message is copied, *len is set to the length (Caution, 0 length messages are permitted).</span></div>
    715. 

  715. <div class="line"><a name="l00668"></a><span class="lineno">  668</span>&#160;<span class="comment">    /// You should be sure to call this function frequently enough to not miss any messages</span></div>
    716. 

  716. <div class="line"><a name="l00669"></a><span class="lineno">  669</span>&#160;<span class="comment">    /// It is recommended that you call it in your main loop.</span></div>
    717. 

  717. <div class="line"><a name="l00670"></a><span class="lineno">  670</span>&#160;<span class="comment">    /// \param[in] buf Location to copy the received message</span></div>
    718. 

  718. <div class="line"><a name="l00671"></a><span class="lineno">  671</span>&#160;<span class="comment">    /// \param[in,out] len Pointer to available space in buf. Set to the actual number of octets copied.</span></div>
    719. 

  719. <div class="line"><a name="l00672"></a><span class="lineno">  672</span>&#160;<span class="comment">    /// \return true if a valid message was copied to buf</span></div>
    720. 

  720. <div class="line"><a name="l00673"></a><span class="lineno">  673</span>&#160;<span class="comment"></span>    <span class="keywordtype">boolean</span>        <a class="code" href="classNRF24.html#a12799e0afcb52f2a8cb7418dca9e0eab">recv</a>(uint8_t* buf, uint8_t* len);</div>
    721. 

  721. <div class="line"><a name="l00674"></a><span class="lineno">  674</span>&#160;</div>
    722. 

  722. <div class="line"><a name="l00675"></a><span class="lineno">  675</span>&#160;<span class="keyword">protected</span>:</div>
    723. 

  723. <div class="line"><a name="l00676"></a><span class="lineno">  676</span>&#160;</div>
    724. 

  724. <div class="line"><a name="l00677"></a><span class="lineno">  677</span>&#160;<span class="keyword">private</span>:</div>
    725. 

  725. <div class="line"><a name="l00678"></a><span class="lineno">  678</span>&#160;    uint8_t             _configuration;</div>
    726. 

  726. <div class="line"><a name="l00679"></a><span class="lineno">  679</span>&#160;    uint8_t             _chipEnablePin;</div>
    727. 

  727. <div class="line"><a name="l00680"></a><span class="lineno">  680</span>&#160;    uint8_t             _chipSelectPin;</div>
    728. 

  728. <div class="line"><a name="l00681"></a><span class="lineno">  681</span>&#160;};</div>
    729. 

  729. <div class="line"><a name="l00682"></a><span class="lineno">  682</span>&#160;<span class="comment"></span></div>
    730. 

  730. <div class="line"><a name="l00683"></a><span class="lineno">  683</span>&#160;<span class="comment">/// @example nrf24_audio_rx.pde</span></div>
    731. 

  731. <div class="line"><a name="l00684"></a><span class="lineno">  684</span>&#160;<span class="comment">/// Example sketch showing how to create an audio digital receiver</span></div>
    732. 

  732. <div class="line"><a name="l00685"></a><span class="lineno">  685</span>&#160;<span class="comment">/// with the NRF24 class. </span></div>
    733. 

  733. <div class="line"><a name="l00686"></a><span class="lineno">  686</span>&#160;<span class="comment">/// Works with the nrf24_audio_tx sample transmitter</span></div>
    734. 

  734. <div class="line"><a name="l00687"></a><span class="lineno">  687</span>&#160;<span class="comment">/// Connect audio output to pin 6, through a low pass filter consisting of a 1k resistor in series followed by a </span></div>
    735. 

  735. <div class="line"><a name="l00688"></a><span class="lineno">  688</span>&#160;<span class="comment">/// 0.0033 microfarad capacitor to ground (48kHz filter).</span></div>
    736. 

  736. <div class="line"><a name="l00689"></a><span class="lineno">  689</span>&#160;<span class="comment">/// The audio quality is poor: dont expect hi-fi!</span></div>
    737. 

  737. <div class="line"><a name="l00690"></a><span class="lineno">  690</span>&#160;<span class="comment">/// We have to change the PWM frequency to 62 kHz so we can get bandwidth reasonable </span></div>
    738. 

  738. <div class="line"><a name="l00691"></a><span class="lineno">  691</span>&#160;<span class="comment">/// audio out through the low pass filter</span></div>
    739. 

  739. <div class="line"><a name="l00692"></a><span class="lineno">  692</span>&#160;<span class="comment">/// Tested on UNO</span></div>
    740. 

  740. <div class="line"><a name="l00693"></a><span class="lineno">  693</span>&#160;<span class="comment"></span><span class="comment"></span></div>
    741. 

  741. <div class="line"><a name="l00694"></a><span class="lineno">  694</span>&#160;<span class="comment">/// @example nrf24_audio_tx.pde</span></div>
    742. 

  742. <div class="line"><a name="l00695"></a><span class="lineno">  695</span>&#160;<span class="comment">/// Example sketch showing how to create an audio digital transmitter </span></div>
    743. 

  743. <div class="line"><a name="l00696"></a><span class="lineno">  696</span>&#160;<span class="comment">/// with the NRF24 class. </span></div>
    744. 

  744. <div class="line"><a name="l00697"></a><span class="lineno">  697</span>&#160;<span class="comment">/// Connect a 1Vp-p audio sigal to analog input 0, connected through a 1uF capacitor</span></div>
    745. 

  745. <div class="line"><a name="l00698"></a><span class="lineno">  698</span>&#160;<span class="comment">/// Works with the nrf24_audio_rx sample receiver</span></div>
    746. 

  746. <div class="line"><a name="l00699"></a><span class="lineno">  699</span>&#160;<span class="comment">/// The audio quality is poor: dont expect hi-fi!</span></div>
    747. 

  747. <div class="line"><a name="l00700"></a><span class="lineno">  700</span>&#160;<span class="comment">///</span></div>
    748. 

  748. <div class="line"><a name="l00701"></a><span class="lineno">  701</span>&#160;<span class="comment">/// This code sends about 250 messages per second, each with 32 8 bit samples from analog input 0</span></div>
    749. 

  749. <div class="line"><a name="l00702"></a><span class="lineno">  702</span>&#160;<span class="comment">/// It uses the NRF4 in NOACK mode. The receiver never acknowledges or replies</span></div>
    750. 

  750. <div class="line"><a name="l00703"></a><span class="lineno">  703</span>&#160;<span class="comment">/// Tested on UNO</span></div>
    751. 

  751. <div class="line"><a name="l00704"></a><span class="lineno">  704</span>&#160;<span class="comment"></span><span class="comment"></span></div>
    752. 

  752. <div class="line"><a name="l00705"></a><span class="lineno">  705</span>&#160;<span class="comment">/// @example nrf24_ping_client.pde</span></div>
    753. 

  753. <div class="line"><a name="l00706"></a><span class="lineno">  706</span>&#160;<span class="comment">/// Example sketch showing how to create a simple messageing client</span></div>
    754. 

  754. <div class="line"><a name="l00707"></a><span class="lineno">  707</span>&#160;<span class="comment">/// with the NRF24 class. </span></div>
    755. 

  755. <div class="line"><a name="l00708"></a><span class="lineno">  708</span>&#160;<span class="comment">/// It is designed to work with the example nrf24_ping_server</span></div>
    756. 

  756. <div class="line"><a name="l00709"></a><span class="lineno">  709</span>&#160;<span class="comment">/// It also works with ping_server from the Mirf library</span></div>
    757. 

  757. <div class="line"><a name="l00710"></a><span class="lineno">  710</span>&#160;<span class="comment"></span><span class="comment"></span></div>
    758. 

  758. <div class="line"><a name="l00711"></a><span class="lineno">  711</span>&#160;<span class="comment">/// @example nrf24_ping_server.pde</span></div>
    759. 

  759. <div class="line"><a name="l00712"></a><span class="lineno">  712</span>&#160;<span class="comment">/// Example sketch showing how to create a simple messageing server</span></div>
    760. 

  760. <div class="line"><a name="l00713"></a><span class="lineno">  713</span>&#160;<span class="comment">/// with the NRF24 class. </span></div>
    761. 

  761. <div class="line"><a name="l00714"></a><span class="lineno">  714</span>&#160;<span class="comment">/// It is designed to work with the example nrf24_ping_client. </span></div>
    762. 

  762. <div class="line"><a name="l00715"></a><span class="lineno">  715</span>&#160;<span class="comment">/// It also works with ping_client from the Mirf library</span></div>
    763. 

  763. <div class="line"><a name="l00716"></a><span class="lineno">  716</span>&#160;<span class="comment"></span><span class="comment"></span></div>
    764. 

  764. <div class="line"><a name="l00717"></a><span class="lineno">  717</span>&#160;<span class="comment">/// @example nrf24_specan.pde</span></div>
    765. 

  765. <div class="line"><a name="l00718"></a><span class="lineno">  718</span>&#160;<span class="comment">/// Example sketch showing how to create a primitive spectrum analyser</span></div>
    766. 

  766. <div class="line"><a name="l00719"></a><span class="lineno">  719</span>&#160;<span class="comment">/// with the NRF24 class. </span></div>
    767. 

  767. <div class="line"><a name="l00720"></a><span class="lineno">  720</span>&#160;<span class="comment">/// The nRF24L01 received power detector is only one bit, but</span></div>
    768. 

  768. <div class="line"><a name="l00721"></a><span class="lineno">  721</span>&#160;<span class="comment">/// this will show which channels have more than -64dBm present</span></div>
    769. 

  769. <div class="line"><a name="l00722"></a><span class="lineno">  722</span>&#160;<span class="comment"></span><span class="comment"></span></div>
    770. 

  770. <div class="line"><a name="l00723"></a><span class="lineno">  723</span>&#160;<span class="comment">/// @example nrf24_test.pde</span></div>
    771. 

  771. <div class="line"><a name="l00724"></a><span class="lineno">  724</span>&#160;<span class="comment">/// Test suite for the NRF24 class. </span></div>
    772. 

  772. <div class="line"><a name="l00725"></a><span class="lineno">  725</span>&#160;<span class="comment"></span><span class="comment"></span></div>
    773. 

  773. <div class="line"><a name="l00726"></a><span class="lineno">  726</span>&#160;<span class="comment">/// @example crazyflie.ino</span></div>
    774. 

  774. <div class="line"><a name="l00727"></a><span class="lineno">  727</span>&#160;<span class="comment">/// This sketch act like a Crazyflie quadcopter http://www.bitcraze.se/</span></div>
    775. 

  775. <div class="line"><a name="l00728"></a><span class="lineno">  728</span>&#160;<span class="comment">/// using the CRTP radiolink protocol:</span></div>
    776. 

  776. <div class="line"><a name="l00729"></a><span class="lineno">  729</span>&#160;<span class="comment">/// http://wiki.bitcraze.se/projects:crazyflie:firmware:comm_protocol</span></div>
    777. 

  777. <div class="line"><a name="l00730"></a><span class="lineno">  730</span>&#160;<span class="comment"></span><span class="comment"></span></div>
    778. 

  778. <div class="line"><a name="l00731"></a><span class="lineno">  731</span>&#160;<span class="comment">/// @example crazyflie_client.ino</span></div>
    779. 

  779. <div class="line"><a name="l00732"></a><span class="lineno">  732</span>&#160;<span class="comment">/// This sketch act like a Crazyflie client (ie the transmitter) using the CRTP radiolink protocol:</span></div>
    780. 

  780. <div class="line"><a name="l00733"></a><span class="lineno">  733</span>&#160;<span class="comment">/// http://wiki.bitcraze.se/projects:crazyflie:firmware:comm_protocol</span></div>
    781. 

  781. <div class="line"><a name="l00734"></a><span class="lineno">  734</span>&#160;<span class="comment">/// to control a Crazyflie quadcopter http://www.bitcraze.se/</span></div>
    782. 

  782. <div class="line"><a name="l00735"></a><span class="lineno">  735</span>&#160;<span class="comment">/// using a RC transmitter in trainer mode, such as the Spektrum DX6i and others.</span></div>
    783. 

  783. <div class="line"><a name="l00736"></a><span class="lineno">  736</span>&#160;<span class="comment"></span><span class="preprocessor">#endif </span></div>
    784. 

  784. <div class="ttc" id="classNRF24_html_ab0eb09c01f73bee4ff6935c0503a8ace"><div class="ttname"><a href="classNRF24.html#ab0eb09c01f73bee4ff6935c0503a8ace">NRF24::NRF24</a></div><div class="ttdeci">NRF24(uint8_t chipEnablePin=8, uint8_t chipSelectPin=SS)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:9</div></div>
    785. 

  785. <div class="ttc" id="classNRF24_html_abc48bb5a86d0bb498c753dc47cea8daa"><div class="ttname"><a href="classNRF24.html#abc48bb5a86d0bb498c753dc47cea8daa">NRF24::spiBurstReadRegister</a></div><div class="ttdeci">void spiBurstReadRegister(uint8_t reg, uint8_t *dest, uint8_t len)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:112</div></div>
    786. 

  786. <div class="ttc" id="classNRF24_html_a52d7af9188397d4a6f5dab55d4f04742ae4523002495ee537f2731b61a220e3af"><div class="ttname"><a href="classNRF24.html#a52d7af9188397d4a6f5dab55d4f04742ae4523002495ee537f2731b61a220e3af">NRF24::NRF24DataRate250kbps</a></div><div class="ttdoc">250 kbps </div><div class="ttdef"><b>Definition:</b> NRF24.h:446</div></div>
    787. 

  787. <div class="ttc" id="classNRF24_html_a1ac9bfce3833725b8b66d9875a8bc00e"><div class="ttname"><a href="classNRF24.html#a1ac9bfce3833725b8b66d9875a8bc00e">NRF24::setRetry</a></div><div class="ttdeci">boolean setRetry(uint8_t delay, uint8_t count=3)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:154</div></div>
    788. 

  788. <div class="ttc" id="classNRF24_html_aad280539b80b28e55ab3187714bc7f2f"><div class="ttname"><a href="classNRF24.html#aad280539b80b28e55ab3187714bc7f2f">NRF24::send</a></div><div class="ttdeci">boolean send(uint8_t *data, uint8_t len, boolean noack=false)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:225</div></div>
    789. 

  789. <div class="ttc" id="classNRF24_html_a8386e81a9a4b824ab26e785879684c7eacce8a36a9753c7c125ad6db450ddfff8"><div class="ttname"><a href="classNRF24.html#a8386e81a9a4b824ab26e785879684c7eacce8a36a9753c7c125ad6db450ddfff8">NRF24::NRF24TransmitPowerm12dBm</a></div><div class="ttdoc">-12 dBm </div><div class="ttdef"><b>Definition:</b> NRF24.h:455</div></div>
    790. 

  790. <div class="ttc" id="classNRF24_html_a81931bc1679b213b1cb1ae65b8357985"><div class="ttname"><a href="classNRF24.html#a81931bc1679b213b1cb1ae65b8357985">NRF24::spiWriteRegister</a></div><div class="ttdeci">uint8_t spiWriteRegister(uint8_t reg, uint8_t val)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:107</div></div>
    791. 

  791. <div class="ttc" id="classNRF24_html_aaff7453d951c74e87ca845e708742252"><div class="ttname"><a href="classNRF24.html#aaff7453d951c74e87ca845e708742252">NRF24::isSending</a></div><div class="ttdeci">boolean isSending()</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:253</div></div>
    792. 

  792. <div class="ttc" id="classNRF24_html_a08ae66610a928a779c0b256e782128b5"><div class="ttname"><a href="classNRF24.html#a08ae66610a928a779c0b256e782128b5">NRF24::spiCommand</a></div><div class="ttdeci">uint8_t spiCommand(uint8_t command)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:54</div></div>
    793. 

  793. <div class="ttc" id="classNRF24_html_a84a25d5654902ed6b69d3a0de9422cfd"><div class="ttname"><a href="classNRF24.html#a84a25d5654902ed6b69d3a0de9422cfd">NRF24::available</a></div><div class="ttdeci">boolean available()</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:272</div></div>
    794. 

  794. <div class="ttc" id="classNRF24_html_a12799e0afcb52f2a8cb7418dca9e0eab"><div class="ttname"><a href="classNRF24.html#a12799e0afcb52f2a8cb7418dca9e0eab">NRF24::recv</a></div><div class="ttdeci">boolean recv(uint8_t *buf, uint8_t *len)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:305</div></div>
    795. 

  795. <div class="ttc" id="classNRF24_html_a8386e81a9a4b824ab26e785879684c7ea4790420d436218aa3bf4c23687664853"><div class="ttname"><a href="classNRF24.html#a8386e81a9a4b824ab26e785879684c7ea4790420d436218aa3bf4c23687664853">NRF24::NRF24TransmitPowerm18dBm</a></div><div class="ttdoc">-18 dBm </div><div class="ttdef"><b>Definition:</b> NRF24.h:454</div></div>
    796. 

  796. <div class="ttc" id="classNRF24_html_a644f3b4fd446438fb340b52df4216ba9"><div class="ttname"><a href="classNRF24.html#a644f3b4fd446438fb340b52df4216ba9">NRF24::flushTx</a></div><div class="ttdeci">uint8_t flushTx()</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:128</div></div>
    797. 

  797. <div class="ttc" id="classNRF24_html_a16f168ffe059120ba696936cd6bd76f1"><div class="ttname"><a href="classNRF24.html#a16f168ffe059120ba696936cd6bd76f1">NRF24::spiWrite</a></div><div class="ttdeci">uint8_t spiWrite(uint8_t command, uint8_t val)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:72</div></div>
    798. 

  798. <div class="ttc" id="classNRF24_html_a9d3d0d432b09d3403a52aa9a78d3f848"><div class="ttname"><a href="classNRF24.html#a9d3d0d432b09d3403a52aa9a78d3f848">NRF24::flushRx</a></div><div class="ttdeci">uint8_t flushRx()</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:133</div></div>
    799. 

  799. <div class="ttc" id="classNRF24_html_a264f427858362e106705d92152bc634e"><div class="ttname"><a href="classNRF24.html#a264f427858362e106705d92152bc634e">NRF24::spiReadRegister</a></div><div class="ttdeci">uint8_t spiReadRegister(uint8_t reg)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:102</div></div>
    800. 

  800. <div class="ttc" id="classNRF24_html_a8386e81a9a4b824ab26e785879684c7eacef1d6c037e276e6dadaff2b6056ec0c"><div class="ttname"><a href="classNRF24.html#a8386e81a9a4b824ab26e785879684c7eacef1d6c037e276e6dadaff2b6056ec0c">NRF24::NRF24TransmitPower0dBm</a></div><div class="ttdoc">0 dBm </div><div class="ttdef"><b>Definition:</b> NRF24.h:457</div></div>
    801. 

  801. <div class="ttc" id="classNRF24_html_ae36ca859ea942a6e9480e8747a27921e"><div class="ttname"><a href="classNRF24.html#ae36ca859ea942a6e9480e8747a27921e">NRF24::waitAvailableTimeout</a></div><div class="ttdeci">bool waitAvailableTimeout(uint16_t timeout)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:295</div></div>
    802. 

  802. <div class="ttc" id="classNRF24_html_a52d7af9188397d4a6f5dab55d4f04742a774c99f9cf1c98cb883d4a01c1444c52"><div class="ttname"><a href="classNRF24.html#a52d7af9188397d4a6f5dab55d4f04742a774c99f9cf1c98cb883d4a01c1444c52">NRF24::NRF24DataRate1Mbps</a></div><div class="ttdoc">1 Mbps </div><div class="ttdef"><b>Definition:</b> NRF24.h:444</div></div>
    803. 

  803. <div class="ttc" id="classNRF24_html_a3fa90005f98eb2744a533899f9b7e023"><div class="ttname"><a href="classNRF24.html#a3fa90005f98eb2744a533899f9b7e023">NRF24::setChannel</a></div><div class="ttdeci">boolean setChannel(uint8_t channel)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:138</div></div>
    804. 

  804. <div class="ttc" id="classNRF24_html_a8562055be6ba65ca8fc292be5f8abc5a"><div class="ttname"><a href="classNRF24.html#a8562055be6ba65ca8fc292be5f8abc5a">NRF24::spiBurstWriteRegister</a></div><div class="ttdeci">uint8_t spiBurstWriteRegister(uint8_t reg, uint8_t *src, uint8_t len)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:117</div></div>
    805. 

  805. <div class="ttc" id="classNRF24_html_a5260f3e5eeb911e720290e652f628ab5"><div class="ttname"><a href="classNRF24.html#a5260f3e5eeb911e720290e652f628ab5">NRF24::waitAvailable</a></div><div class="ttdeci">void waitAvailable()</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:285</div></div>
    806. 

  806. <div class="ttc" id="classNRF24_html_a52d7af9188397d4a6f5dab55d4f04742aca0c89dd1b40bdc57b7026d8da54de9a"><div class="ttname"><a href="classNRF24.html#a52d7af9188397d4a6f5dab55d4f04742aca0c89dd1b40bdc57b7026d8da54de9a">NRF24::NRF24DataRate2Mbps</a></div><div class="ttdoc">2 Mbps </div><div class="ttdef"><b>Definition:</b> NRF24.h:445</div></div>
    807. 

  807. <div class="ttc" id="classNRF24_html_a8386e81a9a4b824ab26e785879684c7e"><div class="ttname"><a href="classNRF24.html#a8386e81a9a4b824ab26e785879684c7e">NRF24::NRF24TransmitPower</a></div><div class="ttdeci">NRF24TransmitPower</div><div class="ttdoc">Convenient values for setting transmitter power in setRF() These are designed to agree with the value...</div><div class="ttdef"><b>Definition:</b> NRF24.h:452</div></div>
    808. 

  808. <div class="ttc" id="classNRF24_html_a448aad6cda19f068009106aa5f6a7e6a"><div class="ttname"><a href="classNRF24.html#a448aad6cda19f068009106aa5f6a7e6a">NRF24::spiBurstRead</a></div><div class="ttdeci">void spiBurstRead(uint8_t command, uint8_t *dest, uint8_t len)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:81</div></div>
    809. 

  809. <div class="ttc" id="classNRF24_html_ab2f002c33ec719dfdd3ae70d70559254"><div class="ttname"><a href="classNRF24.html#ab2f002c33ec719dfdd3ae70d70559254">NRF24::spiRead</a></div><div class="ttdeci">uint8_t spiRead(uint8_t command)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:63</div></div>
    810. 

  810. <div class="ttc" id="classNRF24_html_a01161d0ba54c409e62ad670b9eceb73d"><div class="ttname"><a href="classNRF24.html#a01161d0ba54c409e62ad670b9eceb73d">NRF24::spiBurstWrite</a></div><div class="ttdeci">uint8_t spiBurstWrite(uint8_t command, uint8_t *src, uint8_t len)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:91</div></div>
    811. 

  811. <div class="ttc" id="classNRF24_html_a78a011cddedb14b8764ad5ea760c28ae"><div class="ttname"><a href="classNRF24.html#a78a011cddedb14b8764ad5ea760c28ae">NRF24::waitPacketSent</a></div><div class="ttdeci">boolean waitPacketSent()</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:233</div></div>
    812. 

  812. <div class="ttc" id="classNRF24_html_a5f40f4c8dcb3b5e097510dc6396c7f9b"><div class="ttname"><a href="classNRF24.html#a5f40f4c8dcb3b5e097510dc6396c7f9b">NRF24::powerDown</a></div><div class="ttdeci">boolean powerDown()</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:202</div></div>
    813. 

  813. <div class="ttc" id="classNRF24_html_a28b29969592f9f59c267ae7ffa020b2b"><div class="ttname"><a href="classNRF24.html#a28b29969592f9f59c267ae7ffa020b2b">NRF24::setPipeAddress</a></div><div class="ttdeci">boolean setPipeAddress(uint8_t pipe, uint8_t *address, uint8_t len)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:148</div></div>
    814. 

  814. <div class="ttc" id="classNRF24_html_ab6b14a05c78e40f0491793dcb73c8274"><div class="ttname"><a href="classNRF24.html#ab6b14a05c78e40f0491793dcb73c8274">NRF24::printRegisters</a></div><div class="ttdeci">boolean printRegisters()</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:258</div></div>
    815. 

  815. <div class="ttc" id="classNRF24_html_a3453db8390d5be4aa99d8c7fde3062a4"><div class="ttname"><a href="classNRF24.html#a3453db8390d5be4aa99d8c7fde3062a4">NRF24::setRF</a></div><div class="ttdeci">boolean setRF(uint8_t data_rate, uint8_t power)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:183</div></div>
    816. 

  816. <div class="ttc" id="classNRF24_html_a52d7af9188397d4a6f5dab55d4f04742"><div class="ttname"><a href="classNRF24.html#a52d7af9188397d4a6f5dab55d4f04742">NRF24::NRF24DataRate</a></div><div class="ttdeci">NRF24DataRate</div><div class="ttdoc">Defines convenient values for setting data rates in setRF() </div><div class="ttdef"><b>Definition:</b> NRF24.h:442</div></div>
    817. 

  817. <div class="ttc" id="classNRF24_html"><div class="ttname"><a href="classNRF24.html">NRF24</a></div><div class="ttdoc">Send and receive addressed, reliable, acknowledged datagrams by nRF24L01. </div><div class="ttdef"><b>Definition:</b> NRF24.h:437</div></div>
    818. 

  818. <div class="ttc" id="classNRF24_html_a796cb1901211284a958197d657d6f164"><div class="ttname"><a href="classNRF24.html#a796cb1901211284a958197d657d6f164">NRF24::powerUpTx</a></div><div class="ttdeci">boolean powerUpTx()</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:216</div></div>
    819. 

  819. <div class="ttc" id="classNRF24_html_a9e15babbfa487da3425b19c60a93c057"><div class="ttname"><a href="classNRF24.html#a9e15babbfa487da3425b19c60a93c057">NRF24::powerUpRx</a></div><div class="ttdeci">boolean powerUpRx()</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:209</div></div>
    820. 

  820. <div class="ttc" id="classNRF24_html_a9940479d33d554cab35d50b99112a166"><div class="ttname"><a href="classNRF24.html#a9940479d33d554cab35d50b99112a166">NRF24::statusRead</a></div><div class="ttdeci">uint8_t statusRead()</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:122</div></div>
    821. 

  821. <div class="ttc" id="classNRF24_html_adb2fbd1d1aadaad1e9b268508149b6c8"><div class="ttname"><a href="classNRF24.html#adb2fbd1d1aadaad1e9b268508149b6c8">NRF24::setPayloadSize</a></div><div class="ttdeci">boolean setPayloadSize(uint8_t size)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:176</div></div>
    822. 

  822. <div class="ttc" id="classNRF24_html_a6e98cf508939240c1805245170a995f6"><div class="ttname"><a href="classNRF24.html#a6e98cf508939240c1805245170a995f6">NRF24::init</a></div><div class="ttdeci">boolean init()</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:16</div></div>
    823. 

  823. <div class="ttc" id="classNRF24_html_ade21e0bd4f92d0dfa45909bbbb0e4b01"><div class="ttname"><a href="classNRF24.html#ade21e0bd4f92d0dfa45909bbbb0e4b01">NRF24::setThisAddress</a></div><div class="ttdeci">boolean setThisAddress(uint8_t *address, uint8_t len)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:160</div></div>
    824. 

  824. <div class="ttc" id="classNRF24_html_a790d69e5cb1039fb2924f9405e30e250"><div class="ttname"><a href="classNRF24.html#a790d69e5cb1039fb2924f9405e30e250">NRF24::setConfiguration</a></div><div class="ttdeci">boolean setConfiguration(uint8_t configuration)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:143</div></div>
    825. 

  825. <div class="ttc" id="classNRF24_html_a8386e81a9a4b824ab26e785879684c7eaf8351d714335d0c24bcbb8d3c983d5c7"><div class="ttname"><a href="classNRF24.html#a8386e81a9a4b824ab26e785879684c7eaf8351d714335d0c24bcbb8d3c983d5c7">NRF24::NRF24TransmitPowerm6dBm</a></div><div class="ttdoc">-6 dBm </div><div class="ttdef"><b>Definition:</b> NRF24.h:456</div></div>
    826. 

  826. <div class="ttc" id="classNRF24_html_a7b40c4c481bddf343acdac5179fddc75"><div class="ttname"><a href="classNRF24.html#a7b40c4c481bddf343acdac5179fddc75">NRF24::setTransmitAddress</a></div><div class="ttdeci">boolean setTransmitAddress(uint8_t *address, uint8_t len)</div><div class="ttdef"><b>Definition:</b> NRF24.cpp:168</div></div>
    827. 

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