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<div id="projectname">RTOS_MSPM0
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 <span id="projectnumber">1.1</span>
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<div id="projectbrief">ECE445M starter code</div>
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<ul>
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<li class="navelem"><a class="el" href="dir_d9737668015ddda3d9b152d7c8d1103c.html">RTOS_Labs_common</a></li> </ul>
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</div>
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</div><!-- top -->
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<div class="header">
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<div class="summary">
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<a href="#define-members">Macros</a> |
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<a href="#func-members">Functions</a> </div>
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<div class="headertitle">
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<div class="title">PWMA1.h File Reference<div class="ingroups"><a class="el" href="group___p_w_m_a1.html">PWMA1</a></div></div> </div>
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</div><!--header-->
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<div class="contents">
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<p>Pulse width modulation.
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<a href="#details">More...</a></p>
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<p><a href="_p_w_m_a1_8h_source.html">Go to the source code of this file.</a></p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
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Macros</h2></td></tr>
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<tr class="memitem:ga7497b42df7df560ce90e9b40508a5036"><td class="memItemLeft" align="right" valign="top">
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#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_w_m_a1.html#ga7497b42df7df560ce90e9b40508a5036">PWMUSELFCLK</a>   2</td></tr>
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<tr class="memdesc:ga7497b42df7df560ce90e9b40508a5036"><td class="mdescLeft"> </td><td class="mdescRight">use PWMUSELFCLK to select LFCLK <br /></td></tr>
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<tr class="separator:ga7497b42df7df560ce90e9b40508a5036"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga5bc0918f95e19ab8f7c11d2b850331d8"><td class="memItemLeft" align="right" valign="top">
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#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_w_m_a1.html#ga5bc0918f95e19ab8f7c11d2b850331d8">PWMUSEMFCLK</a>   4</td></tr>
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<tr class="memdesc:ga5bc0918f95e19ab8f7c11d2b850331d8"><td class="mdescLeft"> </td><td class="mdescRight">use PWMUSEMFCLK to select MFCLK <br /></td></tr>
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<tr class="separator:ga5bc0918f95e19ab8f7c11d2b850331d8"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga5a97982467a525ef6074c48f5841efdd"><td class="memItemLeft" align="right" valign="top">
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#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_w_m_a1.html#ga5a97982467a525ef6074c48f5841efdd">PWMUSEBUSCLK</a>   8</td></tr>
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<tr class="memdesc:ga5a97982467a525ef6074c48f5841efdd"><td class="mdescLeft"> </td><td class="mdescRight">use PWMUSEBUSCLK to select bus CLK <br /></td></tr>
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<tr class="separator:ga5a97982467a525ef6074c48f5841efdd"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:ga291dc7daa7e613fa05ac91ed1393c22c"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_w_m_a1.html#ga291dc7daa7e613fa05ac91ed1393c22c">PWMA1_Init</a> (uint32_t timerClkSrc, uint32_t timerClkPrescale, uint32_t period, uint32_t duty0, uint32_t duty1)</td></tr>
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<tr class="memdesc:ga291dc7daa7e613fa05ac91ed1393c22c"><td class="mdescLeft"> </td><td class="mdescRight">Initialize PWMA1. <a href="group___p_w_m_a1.html#ga291dc7daa7e613fa05ac91ed1393c22c">More...</a><br /></td></tr>
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<tr class="separator:ga291dc7daa7e613fa05ac91ed1393c22c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gac4a21e9491bb109052b63ca5acee0bf8"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_w_m_a1.html#gac4a21e9491bb109052b63ca5acee0bf8">PWMA1_SetDuty</a> (uint32_t duty0, uint32_t duty1)</td></tr>
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<tr class="memdesc:gac4a21e9491bb109052b63ca5acee0bf8"><td class="mdescLeft"> </td><td class="mdescRight">Set duty cycles. <a href="group___p_w_m_a1.html#gac4a21e9491bb109052b63ca5acee0bf8">More...</a><br /></td></tr>
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<tr class="separator:gac4a21e9491bb109052b63ca5acee0bf8"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaa6dee984373940a668fa6adc73ad23d1"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_w_m_a1.html#gaa6dee984373940a668fa6adc73ad23d1">PWMA1_Forward</a> (uint32_t duty0)</td></tr>
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<tr class="memdesc:gaa6dee984373940a668fa6adc73ad23d1"><td class="mdescLeft"> </td><td class="mdescRight">Motor forward. <a href="group___p_w_m_a1.html#gaa6dee984373940a668fa6adc73ad23d1">More...</a><br /></td></tr>
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<tr class="separator:gaa6dee984373940a668fa6adc73ad23d1"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga3cde08a70f22f4de286ba41817330ff9"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_w_m_a1.html#ga3cde08a70f22f4de286ba41817330ff9">PWMA1_Backward</a> (uint32_t duty1)</td></tr>
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<tr class="memdesc:ga3cde08a70f22f4de286ba41817330ff9"><td class="mdescLeft"> </td><td class="mdescRight">Motor backward. <a href="group___p_w_m_a1.html#ga3cde08a70f22f4de286ba41817330ff9">More...</a><br /></td></tr>
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<tr class="separator:ga3cde08a70f22f4de286ba41817330ff9"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga279ac3ba48584016b385057fe6f298e2"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_w_m_a1.html#ga279ac3ba48584016b385057fe6f298e2">PWMA1_Break</a> (void)</td></tr>
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<tr class="memdesc:ga279ac3ba48584016b385057fe6f298e2"><td class="mdescLeft"> </td><td class="mdescRight">Motor break. <a href="group___p_w_m_a1.html#ga279ac3ba48584016b385057fe6f298e2">More...</a><br /></td></tr>
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<tr class="separator:ga279ac3ba48584016b385057fe6f298e2"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga4da15ad1cd99b7a86469488c041f9349"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_w_m_a1.html#ga4da15ad1cd99b7a86469488c041f9349">PWMA1_Coast</a> (void)</td></tr>
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<tr class="memdesc:ga4da15ad1cd99b7a86469488c041f9349"><td class="mdescLeft"> </td><td class="mdescRight">Motor coast. <a href="group___p_w_m_a1.html#ga4da15ad1cd99b7a86469488c041f9349">More...</a><br /></td></tr>
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<tr class="separator:ga4da15ad1cd99b7a86469488c041f9349"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>Pulse width modulation. </p>
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<p>Hardware creates fixed period, variable duty cycle waves </p><div class="image">
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<img src="PWM_100Hz.png" alt="" width="500px"/>
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</div>
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<dl class="section version"><dt>Version</dt><dd>RTOS v1.0 </dd></dl>
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<dl class="section author"><dt>Author</dt><dd>Daniel Valvano and Jonathan Valvano </dd></dl>
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<dl class="section copyright"><dt>Copyright</dt><dd>Copyright 2026 by Jonathan W. Valvano, <a href="#" onclick="location.href='mai'+'lto:'+'val'+'va'+'no@'+'ma'+'il.'+'ut'+'exa'+'s.'+'edu'; return false;">valva<span style="display: none;">.nosp@m.</span>no@m<span style="display: none;">.nosp@m.</span>ail.u<span style="display: none;">.nosp@m.</span>texa<span style="display: none;">.nosp@m.</span>s.edu</a>, </dd></dl>
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<dl class="section warning"><dt>Warning</dt><dd>AS-IS </dd></dl>
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<dl class="section note"><dt>Note</dt><dd>For more information see <a href="http://users.ece.utexas.edu/~valvano/">http://users.ece.utexas.edu/~valvano/</a> </dd></dl>
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<dl class="section date"><dt>Date</dt><dd>November 24, 2025 <a class="anchor" id="PWMA1pins3"></a>
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<table class="doxtable">
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<caption>PWM pins on the MSPM0G3507</caption>
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<tr>
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<th>Pin </th><th>Description </th></tr>
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<tr>
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<td>PB4 </td><td>CCP0 PWM output </td></tr>
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<tr>
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<td>PB1 </td><td>CCP1 PWM output </td></tr>
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</table>
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</dd></dl>
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