group__a2d.html

avr应用测试程序

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Turn off A/D converter. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__a2d.html#ga2">a2dSetPrescaler</a> (unsigned char prescale)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__a2d.html#ga3">a2dSetReference</a> (unsigned char ref)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ga4" doxytag="a2d::a2dSetChannel"></a>
void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__a2d.html#ga4">a2dSetChannel</a> (unsigned char ch)</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">sets the a2d input channel <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ga5" doxytag="a2d::a2dStartConvert"></a>
void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__a2d.html#ga5">a2dStartConvert</a> (void)</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">start a conversion on the current a2d input channel <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ga6" doxytag="a2d::a2dIsComplete"></a>
u08&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__a2d.html#ga6">a2dIsComplete</a> (void)</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">return TRUE if conversion is complete <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">unsigned short&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__a2d.html#ga7">a2dConvert10bit</a> (unsigned char ch)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">unsigned char&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__a2d.html#ga8">a2dConvert8bit</a> (unsigned char ch)</td></tr>

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<hr><h2>Function Documentation</h2>
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          <td class="md" nowrap valign="top">unsigned short a2dConvert10bit           </td>
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          <td class="mdname1" valign="top" nowrap> <em>ch</em>          </td>
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Starts a conversion on A/D channel# ch, returns the 10-bit value of the conversion when it is finished. 
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Definition at line <a class="el" href="a2d_8c-source.html#l00087">87</a> of file <a class="el" href="a2d_8c-source.html">a2d.c</a>.    </td>
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          <td class="md" nowrap valign="top">unsigned char a2dConvert8bit           </td>
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          <td class="md" nowrap valign="top">unsigned char&nbsp;</td>
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Starts a conversion on A/D channel# ch, returns the 8-bit value of the conversion when it is finished. 
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Definition at line <a class="el" href="a2d_8c-source.html#l00103">103</a> of file <a class="el" href="a2d_8c-source.html">a2d.c</a>.    </td>
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Initializes the A/D converter. Turns ADC on and prepares it for use. 
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Definition at line <a class="el" href="a2d_8c-source.html#l00033">33</a> of file <a class="el" href="a2d_8c-source.html">a2d.c</a>.    </td>
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          <td class="md" nowrap valign="top">void a2dSetPrescaler           </td>
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          <td class="md" nowrap valign="top">unsigned char&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>prescale</em>          </td>
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Sets the division ratio of the A/D converter clock. This function is automatically called from <a class="el" href="group__a2d.html#ga0">a2dInit()</a> with a default value. 
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Definition at line <a class="el" href="a2d_8c-source.html#l00055">55</a> of file <a class="el" href="a2d_8c-source.html">a2d.c</a>.    </td>
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          <td class="md" nowrap valign="top">void a2dSetReference           </td>
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          <td class="md" nowrap valign="top">unsigned char&nbsp;</td>
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Configures which voltage reference the A/D converter uses. This function is automatically called from <a class="el" href="group__a2d.html#ga0">a2dInit()</a> with a default value. 
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Definition at line <a class="el" href="a2d_8c-source.html#l00061">61</a> of file <a class="el" href="a2d_8c-source.html">a2d.c</a>.    </td>
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