377 lines
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377 lines
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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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<a href="#files">Files</a> |
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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">PWMA0</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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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="files"></a>
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Files</h2></td></tr>
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<tr class="memitem:_p_w_m_a0_8h"><td class="memItemLeft" align="right" valign="top">file  </td><td class="memItemRight" valign="bottom"><a class="el" href="_p_w_m_a0_8h.html">PWMA0.h</a></td></tr>
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<tr class="memdesc:_p_w_m_a0_8h"><td class="mdescLeft"> </td><td class="mdescRight">Pulse width modulation. <br /></td></tr>
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<tr class="separator:"><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="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"><a id="ga7497b42df7df560ce90e9b40508a5036"></a>
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#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_w_m_a0.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"><a id="ga5bc0918f95e19ab8f7c11d2b850331d8"></a>
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#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_w_m_a0.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"><a id="ga5a97982467a525ef6074c48f5841efdd"></a>
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#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_w_m_a0.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:gadbe2bda0c1f3d3088d485411358314bc"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_w_m_a0.html#gadbe2bda0c1f3d3088d485411358314bc">PWMA0_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:gadbe2bda0c1f3d3088d485411358314bc"><td class="mdescLeft"> </td><td class="mdescRight">Initialize PWMA0. <a href="group___p_w_m_a0.html#gadbe2bda0c1f3d3088d485411358314bc">More...</a><br /></td></tr>
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<tr class="separator:gadbe2bda0c1f3d3088d485411358314bc"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga328ebf693fe2ed39f1796f73be153499"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_w_m_a0.html#ga328ebf693fe2ed39f1796f73be153499">PWMA0_SetDuty</a> (uint32_t duty0, uint32_t duty1)</td></tr>
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<tr class="memdesc:ga328ebf693fe2ed39f1796f73be153499"><td class="mdescLeft"> </td><td class="mdescRight">Set duty cycles. <a href="group___p_w_m_a0.html#ga328ebf693fe2ed39f1796f73be153499">More...</a><br /></td></tr>
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<tr class="separator:ga328ebf693fe2ed39f1796f73be153499"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaa30201d0dbd0bfb46e0f1c0eaccd947a"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_w_m_a0.html#gaa30201d0dbd0bfb46e0f1c0eaccd947a">PWMA0_Forward</a> (uint32_t duty0)</td></tr>
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<tr class="memdesc:gaa30201d0dbd0bfb46e0f1c0eaccd947a"><td class="mdescLeft"> </td><td class="mdescRight">Motor forward. <a href="group___p_w_m_a0.html#gaa30201d0dbd0bfb46e0f1c0eaccd947a">More...</a><br /></td></tr>
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<tr class="separator:gaa30201d0dbd0bfb46e0f1c0eaccd947a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga9d497017d72d7c7afc0a08750cff9095"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_w_m_a0.html#ga9d497017d72d7c7afc0a08750cff9095">PWMA0_Backward</a> (uint32_t duty1)</td></tr>
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<tr class="memdesc:ga9d497017d72d7c7afc0a08750cff9095"><td class="mdescLeft"> </td><td class="mdescRight">Motor backward. <a href="group___p_w_m_a0.html#ga9d497017d72d7c7afc0a08750cff9095">More...</a><br /></td></tr>
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<tr class="separator:ga9d497017d72d7c7afc0a08750cff9095"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga03d9522aca0fdc602a51139894915121"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_w_m_a0.html#ga03d9522aca0fdc602a51139894915121">PWMA0_Break</a> (void)</td></tr>
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<tr class="memdesc:ga03d9522aca0fdc602a51139894915121"><td class="mdescLeft"> </td><td class="mdescRight">Motor break. <a href="group___p_w_m_a0.html#ga03d9522aca0fdc602a51139894915121">More...</a><br /></td></tr>
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<tr class="separator:ga03d9522aca0fdc602a51139894915121"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gadaed68c7fefab9f58467fda5fee31436"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___p_w_m_a0.html#gadaed68c7fefab9f58467fda5fee31436">PWMA0_Coast</a> (void)</td></tr>
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<tr class="memdesc:gadaed68c7fefab9f58467fda5fee31436"><td class="mdescLeft"> </td><td class="mdescRight">Motor coast. <a href="group___p_w_m_a0.html#gadaed68c7fefab9f58467fda5fee31436">More...</a><br /></td></tr>
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<tr class="separator:gadaed68c7fefab9f58467fda5fee31436"><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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<p>Pulse width modulation. </p>
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<a class="anchor" id="PWMA0pins2"></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>PB8 </td><td>CCP0 PWM output </td></tr>
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<tr>
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<td>PB9 </td><td>CCP1 PWM output </td></tr>
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</table>
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<h2 class="groupheader">Function Documentation</h2>
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<a id="ga9d497017d72d7c7afc0a08750cff9095"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ga9d497017d72d7c7afc0a08750cff9095">◆ </a></span>PWMA0_Backward()</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">void PWMA0_Backward </td>
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<td>(</td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>duty1</em></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Motor backward. </p>
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<p>Set duty cycle on PB9, and set PB8 high. </p><dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">duty1</td><td>sets the duty cycle on PB9 </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
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<dl class="section note"><dt>Note</dt><dd>assumes PWMA0_Init was called </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="group___p_w_m_a0.html#gadbe2bda0c1f3d3088d485411358314bc" title="Initialize PWMA0.">PWMA0_Init</a> </dd></dl>
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</div>
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</div>
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<a id="ga03d9522aca0fdc602a51139894915121"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ga03d9522aca0fdc602a51139894915121">◆ </a></span>PWMA0_Break()</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">void PWMA0_Break </td>
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<td>(</td>
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<td class="paramtype">void </td>
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<td class="paramname"></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Motor break. </p>
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<p>Set PB8 high, and set PB9 high. </p><dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">none</td><td></td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
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<dl class="section note"><dt>Note</dt><dd>assumes PWMA0_Init was called </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="group___p_w_m_a0.html#gadbe2bda0c1f3d3088d485411358314bc" title="Initialize PWMA0.">PWMA0_Init</a> </dd></dl>
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</div>
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</div>
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<a id="gadaed68c7fefab9f58467fda5fee31436"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#gadaed68c7fefab9f58467fda5fee31436">◆ </a></span>PWMA0_Coast()</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">void PWMA0_Coast </td>
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<td>(</td>
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<td class="paramtype">void </td>
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<td class="paramname"></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Motor coast. </p>
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<p>Set PB8 low, and set PB9 low. Goes into sleep mode </p><dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">none</td><td></td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
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<dl class="section note"><dt>Note</dt><dd>assumes PWMA0_Init was called </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="group___p_w_m_a0.html#gadbe2bda0c1f3d3088d485411358314bc" title="Initialize PWMA0.">PWMA0_Init</a> </dd></dl>
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</div>
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</div>
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<a id="gaa30201d0dbd0bfb46e0f1c0eaccd947a"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#gaa30201d0dbd0bfb46e0f1c0eaccd947a">◆ </a></span>PWMA0_Forward()</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">void PWMA0_Forward </td>
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<td>(</td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>duty0</em></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Motor forward. </p>
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<p>Set duty cycle on PB8, and set PB9 high. </p><dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">duty0</td><td>sets the duty cycle on PB8 </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
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<dl class="section note"><dt>Note</dt><dd>assumes PWMA0_Init was called </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="group___p_w_m_a0.html#gadbe2bda0c1f3d3088d485411358314bc" title="Initialize PWMA0.">PWMA0_Init</a> </dd></dl>
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</div>
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</div>
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<a id="gadbe2bda0c1f3d3088d485411358314bc"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#gadbe2bda0c1f3d3088d485411358314bc">◆ </a></span>PWMA0_Init()</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">void PWMA0_Init </td>
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<td>(</td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>timerClkSrc</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>timerClkPrescale</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>period</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint32_t </td>
|
||
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<td class="paramname"><em>duty0</em>, </td>
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</tr>
|
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>duty1</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Initialize PWMA0. </p>
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||
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<p>Initialize PWMA0 outputs on PB8, PB9. Rising edge synchronized. timerClkDivRatio = 1. Once started, hardware will continuously output the waves.</p><ul>
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||
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<li>timerClkSrc =<ul>
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||
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<li>2 for 32768 Hz LFCLK</li>
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||
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<li>4 for 4MHz MFCLK (not tested)</li>
|
||
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<li>8 for 80/32/4 BUSCLK</li>
|
||
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</ul>
|
||
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</li>
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||
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<li>G0/G8 is on Power domain PD0<ul>
|
||
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<li>32MHz bus clock, BUSCLK clock is 32MHz</li>
|
||
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<li>40MHz bus clock, BUSCLK clock is ULPCLK 20MHz</li>
|
||
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<li>80MHz bus clock, BUSCLK clock is ULPCLK 40MHz</li>
|
||
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|
</ul>
|
||
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</li>
|
||
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<li>PWMFreq = (timerClkSrc / (timerClkDivRatio * (timerClkPrescale + 1) * period))<ul>
|
||
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<li>For example, source=LFCLK, prescale = 0, period = 1000, PWM frequency = 32.768 Hz</li>
|
||
|
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<li>For example, source=BUSCLK, bus=40MHz, prescale=19, period = 10000, PWM frequency = 10kHz</li>
|
||
|
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</ul>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
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<dl class="params"><dt>Parameters</dt><dd>
|
||
|
|
<table class="params">
|
||
|
|
<tr><td class="paramname">timerClkSrc</td><td>is 2 4 or 8 </td></tr>
|
||
|
|
<tr><td class="paramname">timerClkPrescale</td><td>divide clock by timerClkPrescale+1, 0 to 255 </td></tr>
|
||
|
|
<tr><td class="paramname">period</td><td>sets the PWMA0 period </td></tr>
|
||
|
|
<tr><td class="paramname">duty0</td><td>sets the duty cycle on PB8 </td></tr>
|
||
|
|
<tr><td class="paramname">duty1</td><td>sets the duty cycle on PB9 </td></tr>
|
||
|
|
</table>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
|
||
|
|
<dl class="section note"><dt>Note</dt><dd>Will call LaunchPad_Init to reset and activate power </dd></dl>
|
||
|
|
<dl class="section see"><dt>See also</dt><dd><a class="el" href="group___p_w_m_a0.html#ga328ebf693fe2ed39f1796f73be153499" title="Set duty cycles.">PWMA0_SetDuty</a> </dd></dl>
|
||
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|
||
|
|
</div>
|
||
|
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</div>
|
||
|
|
<a id="ga328ebf693fe2ed39f1796f73be153499"></a>
|
||
|
|
<h2 class="memtitle"><span class="permalink"><a href="#ga328ebf693fe2ed39f1796f73be153499">◆ </a></span>PWMA0_SetDuty()</h2>
|
||
|
|
|
||
|
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<div class="memitem">
|
||
|
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<div class="memproto">
|
||
|
|
<table class="memname">
|
||
|
|
<tr>
|
||
|
|
<td class="memname">void PWMA0_SetDuty </td>
|
||
|
|
<td>(</td>
|
||
|
|
<td class="paramtype">uint32_t </td>
|
||
|
|
<td class="paramname"><em>duty0</em>, </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td class="paramkey"></td>
|
||
|
|
<td></td>
|
||
|
|
<td class="paramtype">uint32_t </td>
|
||
|
|
<td class="paramname"><em>duty1</em> </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td></td>
|
||
|
|
<td>)</td>
|
||
|
|
<td></td><td></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</div><div class="memdoc">
|
||
|
|
|
||
|
|
<p>Set duty cycles. </p>
|
||
|
|
<p>Set duty cycles on PB8, PB9. </p><dl class="params"><dt>Parameters</dt><dd>
|
||
|
|
<table class="params">
|
||
|
|
<tr><td class="paramname">duty0</td><td>sets the duty cycle on PB8 </td></tr>
|
||
|
|
<tr><td class="paramname">duty1</td><td>sets the duty cycle on PB9 </td></tr>
|
||
|
|
</table>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
|
||
|
|
<dl class="section note"><dt>Note</dt><dd>assumes PWMA0_Init was called </dd></dl>
|
||
|
|
<dl class="section see"><dt>See also</dt><dd>PWM_Init </dd></dl>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
</div><!-- contents -->
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<!-- start footer part -->
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