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<div id="projectname">ESP8266_RTOS_SDK
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 <span id="projectnumber">v1.4.0</span>
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<div class="title">pwm.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * ESPRSSIF MIT License</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Copyright (c) 2015 <ESPRESSIF SYSTEMS (SHANGHAI) PTE LTD></span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * Permission is hereby granted for use on ESPRESSIF SYSTEMS ESP8266 only, in which case,</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * it is free of charge, to any person obtaining a copy of this software and associated</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * documentation files (the "Software"), to deal in the Software without restriction, including</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the Software is furnished</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * to do so, subject to the following conditions:</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * The above copyright notice and this permission notice shall be included in all copies or</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * substantial portions of the Software.</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#ifndef __PWM_H__</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#define __PWM_H__</span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div>
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<div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="structpwm__param.html"> 48</a></span> <span class="keyword">struct </span><a class="code" href="structpwm__param.html">pwm_param</a> {</div>
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<div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="structpwm__param.html#a3c1ef865ae62e58233701a3bfc68f262"> 49</a></span>  uint32 <a class="code" href="structpwm__param.html#a3c1ef865ae62e58233701a3bfc68f262">period</a>; </div>
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<div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="structpwm__param.html#a8524d98a86c8c4679521ae91d35f6e51"> 50</a></span>  uint32 <a class="code" href="structpwm__param.html#a8524d98a86c8c4679521ae91d35f6e51">freq</a>; </div>
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<div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="structpwm__param.html#a06e6b4fb1983f85d1908d44cb32686a8"> 51</a></span>  uint32 <a class="code" href="structpwm__param.html#a06e6b4fb1983f85d1908d44cb32686a8">duty</a>[8]; </div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> };</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor">#define PWM_DEPTH 1023</span></div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="keywordtype">void</span> <a class="code" href="group__PWM__Driver__APIs.html#ga96286902d138bbba183495583db6f369">pwm_init</a>(uint32 period, uint32 *duty, uint32 pwm_channel_num, uint32(*pin_info_list)[3]);</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="keywordtype">void</span> <a class="code" href="group__PWM__Driver__APIs.html#ga3c85e3b8654b48f23033f132b91c07b3">pwm_set_duty</a>(uint32 duty, uint8 channel);</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> uint32 <a class="code" href="group__PWM__Driver__APIs.html#gaa2c27474ef8774f6a85971f813785068">pwm_get_duty</a>(uint8 channel);</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="keywordtype">void</span> <a class="code" href="group__PWM__Driver__APIs.html#ga57dad644319cd4324edd382d5ce772f5">pwm_set_period</a>(uint32 period);</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> uint32 <a class="code" href="group__PWM__Driver__APIs.html#ga347173af17daf294b4312d975f3bed8b">pwm_get_period</a>(<span class="keywordtype">void</span>);</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="keywordtype">void</span> <a class="code" href="group__PWM__Driver__APIs.html#gad405ef7080a8cea5c9ac23ba25da1fbb">pwm_start</a>(<span class="keywordtype">void</span>);</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> }</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="preprocessor">#endif</span></div>
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<div class="ttc" id="structpwm__param_html_a8524d98a86c8c4679521ae91d35f6e51"><div class="ttname"><a href="structpwm__param.html#a8524d98a86c8c4679521ae91d35f6e51">pwm_param::freq</a></div><div class="ttdeci">uint32 freq</div><div class="ttdef"><b>Definition:</b> pwm.h:50</div></div>
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<div class="ttc" id="structpwm__param_html_a3c1ef865ae62e58233701a3bfc68f262"><div class="ttname"><a href="structpwm__param.html#a3c1ef865ae62e58233701a3bfc68f262">pwm_param::period</a></div><div class="ttdeci">uint32 period</div><div class="ttdef"><b>Definition:</b> pwm.h:49</div></div>
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<div class="ttc" id="structpwm__param_html_a06e6b4fb1983f85d1908d44cb32686a8"><div class="ttname"><a href="structpwm__param.html#a06e6b4fb1983f85d1908d44cb32686a8">pwm_param::duty</a></div><div class="ttdeci">uint32 duty[8]</div><div class="ttdef"><b>Definition:</b> pwm.h:51</div></div>
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<div class="ttc" id="group__PWM__Driver__APIs_html_ga347173af17daf294b4312d975f3bed8b"><div class="ttname"><a href="group__PWM__Driver__APIs.html#ga347173af17daf294b4312d975f3bed8b">pwm_get_period</a></div><div class="ttdeci">uint32 pwm_get_period(void)</div><div class="ttdoc">Get PWM period, unit : us. </div></div>
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<div class="ttc" id="group__PWM__Driver__APIs_html_ga57dad644319cd4324edd382d5ce772f5"><div class="ttname"><a href="group__PWM__Driver__APIs.html#ga57dad644319cd4324edd382d5ce772f5">pwm_set_period</a></div><div class="ttdeci">void pwm_set_period(uint32 period)</div><div class="ttdoc">Set PWM period, unit : us. </div></div>
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<div class="ttc" id="group__PWM__Driver__APIs_html_ga3c85e3b8654b48f23033f132b91c07b3"><div class="ttname"><a href="group__PWM__Driver__APIs.html#ga3c85e3b8654b48f23033f132b91c07b3">pwm_set_duty</a></div><div class="ttdeci">void pwm_set_duty(uint32 duty, uint8 channel)</div><div class="ttdoc">Set the duty cycle of a PWM channel. </div></div>
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<div class="ttc" id="group__PWM__Driver__APIs_html_ga96286902d138bbba183495583db6f369"><div class="ttname"><a href="group__PWM__Driver__APIs.html#ga96286902d138bbba183495583db6f369">pwm_init</a></div><div class="ttdeci">void pwm_init(uint32 period, uint32 *duty, uint32 pwm_channel_num, uint32(*pin_info_list)[3])</div><div class="ttdoc">PWM function initialization, including GPIO, frequency and duty cycle. </div></div>
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<div class="ttc" id="group__PWM__Driver__APIs_html_gaa2c27474ef8774f6a85971f813785068"><div class="ttname"><a href="group__PWM__Driver__APIs.html#gaa2c27474ef8774f6a85971f813785068">pwm_get_duty</a></div><div class="ttdeci">uint32 pwm_get_duty(uint8 channel)</div><div class="ttdoc">Get the duty cycle of a PWM channel. </div></div>
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<div class="ttc" id="structpwm__param_html"><div class="ttname"><a href="structpwm__param.html">pwm_param</a></div><div class="ttdef"><b>Definition:</b> pwm.h:48</div></div>
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<div class="ttc" id="group__PWM__Driver__APIs_html_gad405ef7080a8cea5c9ac23ba25da1fbb"><div class="ttname"><a href="group__PWM__Driver__APIs.html#gad405ef7080a8cea5c9ac23ba25da1fbb">pwm_start</a></div><div class="ttdeci">void pwm_start(void)</div><div class="ttdoc">Starts PWM. </div></div>
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