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&#160;<span id="projectnumber">1.1</span>
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<div id="projectbrief">ECE445M starter code</div>
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<a href="#define-members">Macros</a> &#124;
<a href="#func-members">Functions</a> </div>
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<div class="title">ADCTimer.h File Reference<div class="ingroups"><a class="el" href="group___a_d_c.html">ADC</a></div></div> </div>
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<p>Initialize 12-bit ADC0.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include &lt;ti/devices/msp/msp.h&gt;</code><br />
</div>
<p><a href="_a_d_c_timer_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
Macros</h2></td></tr>
<tr class="memitem:gaca29e70cf7d5f2386de2db4875ce1be7"><td class="memItemLeft" align="right" valign="top">
#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___a_d_c.html#gaca29e70cf7d5f2386de2db4875ce1be7">ADCVREF_INT</a>&#160;&#160;&#160;0x200</td></tr>
<tr class="memdesc:gaca29e70cf7d5f2386de2db4875ce1be7"><td class="mdescLeft">&#160;</td><td class="mdescRight">using ADCVREF_INT means choose internal 2.5V reference for accuracy <br /></td></tr>
<tr class="separator:gaca29e70cf7d5f2386de2db4875ce1be7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga0a05da91d2e9a78c7cc97d9891a7db3a"><td class="memItemLeft" align="right" valign="top">
#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___a_d_c.html#ga0a05da91d2e9a78c7cc97d9891a7db3a">ADCVREF_EXT</a>&#160;&#160;&#160;0x100</td></tr>
<tr class="memdesc:ga0a05da91d2e9a78c7cc97d9891a7db3a"><td class="mdescLeft">&#160;</td><td class="mdescRight">using ADCVREF_EXT means choose external reference not tested <br /></td></tr>
<tr class="separator:ga0a05da91d2e9a78c7cc97d9891a7db3a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga205c4d7f564b9d5f50299e259a005b0e"><td class="memItemLeft" align="right" valign="top">
#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___a_d_c.html#ga205c4d7f564b9d5f50299e259a005b0e">ADCVREF_VDDA</a>&#160;&#160;&#160;0x000</td></tr>
<tr class="memdesc:ga205c4d7f564b9d5f50299e259a005b0e"><td class="mdescLeft">&#160;</td><td class="mdescRight">using ADCVREF_VDDA means choose power line 3.3V reference for 0 to 3.3V range. This is the mode we use in ECE319K <br /></td></tr>
<tr class="separator:ga205c4d7f564b9d5f50299e259a005b0e"><td class="memSeparator" colspan="2">&#160;</td></tr>
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Functions</h2></td></tr>
<tr class="memitem:ga0459ee7a18c66e2900352e5f5a96f6ec"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___a_d_c.html#ga0459ee7a18c66e2900352e5f5a96f6ec">ADC0_TimerG0_Init</a> (uint32_t channel, uint32_t reference, uint16_t period, uint32_t prescale, uint32_t priority)</td></tr>
<tr class="memdesc:ga0459ee7a18c66e2900352e5f5a96f6ec"><td class="mdescLeft">&#160;</td><td class="mdescRight">Initialize 12-bit ADC0. <a href="group___a_d_c.html#ga0459ee7a18c66e2900352e5f5a96f6ec">More...</a><br /></td></tr>
<tr class="separator:ga0459ee7a18c66e2900352e5f5a96f6ec"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga591195de27898112ee2bfb241b439e30"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___a_d_c.html#ga591195de27898112ee2bfb241b439e30">ADC1_TimerG8_Init</a> (uint32_t channel, uint32_t reference, uint16_t period, uint32_t prescale, uint32_t priority)</td></tr>
<tr class="memdesc:ga591195de27898112ee2bfb241b439e30"><td class="mdescLeft">&#160;</td><td class="mdescRight">Initialize 12-bit ADC1. <a href="group___a_d_c.html#ga591195de27898112ee2bfb241b439e30">More...</a><br /></td></tr>
<tr class="separator:ga591195de27898112ee2bfb241b439e30"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Initialize 12-bit ADC0. </p>
<p>ADC input, timer trigger, 12-bit conversion<br />
The ADC allows two possible references: 2.5V or 3.3V.<br />
The internal 2.5V reference is lower noise, but limits the range to 0 to 2.5V.<br />
The other possibility is to use the analog voltage supply at 3.3V, making the ADC range 0 to 3.3V. In this driver, the 3.3V range is selected. There are several configurations (each with initialization and a read ADC with software trigger, busy-wait function)<br />
</p>
<dl class="section version"><dt>Version</dt><dd>ECE319K v1.3 </dd></dl>
<dl class="section author"><dt>Author</dt><dd>Daniel Valvano and Jonathan Valvano </dd></dl>
<dl class="section copyright"><dt>Copyright</dt><dd>Copyright 2025 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>
<dl class="section warning"><dt>Warning</dt><dd>AS-IS </dd></dl>
<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>
<dl class="section date"><dt>Date</dt><dd>May 23, 2025 <a class="anchor" id="ADCpins2T"></a>
<table class="doxtable">
<caption>ADC pins on the MSPM0G3507</caption>
<tr>
<th>Pin </th><th>ADC channel</th><th>Sensor </th></tr>
<tr>
<td>PA27 </td><td>ADC0 channel 0 </td><td>J1.8 also MKII light interrupt </td></tr>
<tr>
<td>PA26 </td><td>ADC0 channel 1 </td><td>J1.6 MKII microphone in </td></tr>
<tr>
<td>PA25 </td><td>ADC0 channel 2 </td><td>J1.2 MKII Joystick X </td></tr>
<tr>
<td>PA24 </td><td>ADC0 channel 3 </td><td>J3.27 <em><b>free</b></em> </td></tr>
<tr>
<td>PB25 </td><td>ADC0 channel 4 </td><td>J19.7 (insert 0ohm R74, no U3 OPA2365) </td></tr>
<tr>
<td>PB24 </td><td>ADC0 channel 5 </td><td>J1.5 also MKII joystick select button </td></tr>
<tr>
<td>PB20 </td><td>ADC0 channel 6 </td><td>J4.36 <em><b>free</b></em> </td></tr>
<tr>
<td>PA22 </td><td>ADC0 channel 7 </td><td>J24 MKII Accelerometer Y </td></tr>
<tr>
<td>PA15 </td><td>ADC1 channel 0 </td><td>J3.30 (also DACout) </td></tr>
<tr>
<td>PA16 </td><td>ADC1 channel 1 </td><td>J3.29 <em><b>free</b></em> </td></tr>
<tr>
<td>PA17 </td><td>ADC1 channel 2 </td><td>J3.28 <em><b>free</b></em> </td></tr>
<tr>
<td>PA18 </td><td>ADC1 channel 3 </td><td>J3.26 MKII Joystick Y </td></tr>
<tr>
<td>PB17 </td><td>ADC1 channel 4 </td><td>J2.18 <em><b>free</b></em> </td></tr>
<tr>
<td>PB18 </td><td>ADC1 channel 5 </td><td>J3.25 MKII Accelerometer Z </td></tr>
<tr>
<td>PB19 </td><td>ADC1 channel 6 </td><td>J3.23 MKII Accelerometer X </td></tr>
<tr>
<td>PA21 </td><td>ADC1 channel 7 </td><td>J17.8 (insert R20, remove R3) </td></tr>
</table>
note to students****<br />
the data sheet says the ADC does not work when clock is 80 MHz however, the ADC seems to work on my boards at 80 MHz I suggest you try 80MHz, but if it doesn't work, switch to 40MHz </dd></dl>
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