448 lines
24 KiB
HTML
448 lines
24 KiB
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<div class="title">I2C eDMA Driver<div class="ingroups"><a class="el" href="group__i2c.html">I2C: Inter-Integrated Circuit Driver</a></div></div> </div>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
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Data Structures</h2></td></tr>
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<tr class="memitem:struct__i2c__master__edma__handle"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c__edma__driver.html#struct__i2c__master__edma__handle">i2c_master_edma_handle_t</a></td></tr>
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<tr class="memdesc:struct__i2c__master__edma__handle"><td class="mdescLeft"> </td><td class="mdescRight">I2C master eDMA transfer structure. <a href="group__i2c__edma__driver.html#struct__i2c__master__edma__handle">More...</a><br/></td></tr>
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Typedefs</h2></td></tr>
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<tr class="memitem:ga8e6dcec2d47eae5e1e5e2bb6c40b7e57"><td class="memItemLeft" align="right" valign="top">typedef void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c__edma__driver.html#ga8e6dcec2d47eae5e1e5e2bb6c40b7e57">i2c_master_edma_transfer_callback_t</a> )(I2C_Type *base, i2c_master_edma_handle_t *handle, status_t status, void *userData)</td></tr>
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<tr class="memdesc:ga8e6dcec2d47eae5e1e5e2bb6c40b7e57"><td class="mdescLeft"> </td><td class="mdescRight">I2C master eDMA transfer callback typedef. <a href="#ga8e6dcec2d47eae5e1e5e2bb6c40b7e57">More...</a><br/></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="member-group"></a>
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I2C Block eDMA Transfer Operation</h2></td></tr>
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<tr class="memitem:ga2b04a3e7d9cc4772f0442b52319c9d8b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c__edma__driver.html#ga2b04a3e7d9cc4772f0442b52319c9d8b">I2C_MasterCreateEDMAHandle</a> (I2C_Type *base, i2c_master_edma_handle_t *handle, <a class="el" href="group__i2c__edma__driver.html#ga8e6dcec2d47eae5e1e5e2bb6c40b7e57">i2c_master_edma_transfer_callback_t</a> callback, void *userData, edma_handle_t *edmaHandle)</td></tr>
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<tr class="memdesc:ga2b04a3e7d9cc4772f0442b52319c9d8b"><td class="mdescLeft"> </td><td class="mdescRight">Init the I2C handle which is used in transcational functions. <a href="#ga2b04a3e7d9cc4772f0442b52319c9d8b">More...</a><br/></td></tr>
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<tr class="separator:ga2b04a3e7d9cc4772f0442b52319c9d8b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga051fb0ab265d006085ae1bab58947554"><td class="memItemLeft" align="right" valign="top">status_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c__edma__driver.html#ga051fb0ab265d006085ae1bab58947554">I2C_MasterTransferEDMA</a> (I2C_Type *base, i2c_master_edma_handle_t *handle, <a class="el" href="group__i2c__driver.html#structi2c__master__transfer__t">i2c_master_transfer_t</a> *xfer)</td></tr>
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<tr class="memdesc:ga051fb0ab265d006085ae1bab58947554"><td class="mdescLeft"> </td><td class="mdescRight">Performs a master eDMA non-blocking transfer on the I2C bus. <a href="#ga051fb0ab265d006085ae1bab58947554">More...</a><br/></td></tr>
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<tr class="separator:ga051fb0ab265d006085ae1bab58947554"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga5f5e384fc8e7051293b1278fb1526fa2"><td class="memItemLeft" align="right" valign="top">status_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c__edma__driver.html#ga5f5e384fc8e7051293b1278fb1526fa2">I2C_MasterTransferGetCountEDMA</a> (I2C_Type *base, i2c_master_edma_handle_t *handle, size_t *count)</td></tr>
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<tr class="memdesc:ga5f5e384fc8e7051293b1278fb1526fa2"><td class="mdescLeft"> </td><td class="mdescRight">Get master transfer status during a eDMA non-blocking transfer. <a href="#ga5f5e384fc8e7051293b1278fb1526fa2">More...</a><br/></td></tr>
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<tr class="separator:ga5f5e384fc8e7051293b1278fb1526fa2"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaba53231e4fee0aadb9cd0fbeeb61492a"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c__edma__driver.html#gaba53231e4fee0aadb9cd0fbeeb61492a">I2C_MasterTransferAbortEDMA</a> (I2C_Type *base, i2c_master_edma_handle_t *handle)</td></tr>
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<tr class="memdesc:gaba53231e4fee0aadb9cd0fbeeb61492a"><td class="mdescLeft"> </td><td class="mdescRight">Abort a master eDMA non-blocking transfer in a early time. <a href="#gaba53231e4fee0aadb9cd0fbeeb61492a">More...</a><br/></td></tr>
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<hr/><h2 class="groupheader">Data Structure Documentation</h2>
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<a name="struct__i2c__master__edma__handle" id="struct__i2c__master__edma__handle"></a>
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<td class="memname">struct _i2c_master_edma_handle</td>
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<div class="textblock"><p>I2C master eDMA handle typedef.</p>
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<tr><td colspan="2"><h3>Data Fields</h3></td></tr>
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<tr class="memitem:a3766bc4cc29984a5df623edcbe1b9ca9"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__i2c__driver.html#structi2c__master__transfer__t">i2c_master_transfer_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c__edma__driver.html#a3766bc4cc29984a5df623edcbe1b9ca9">transfer</a></td></tr>
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<tr class="memdesc:a3766bc4cc29984a5df623edcbe1b9ca9"><td class="mdescLeft"> </td><td class="mdescRight">I2C master transfer struct. <a href="#a3766bc4cc29984a5df623edcbe1b9ca9">More...</a><br/></td></tr>
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<tr class="separator:a3766bc4cc29984a5df623edcbe1b9ca9"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aebd195813157bfa7d42438f90c1055e0"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c__edma__driver.html#aebd195813157bfa7d42438f90c1055e0">transferSize</a></td></tr>
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<tr class="memdesc:aebd195813157bfa7d42438f90c1055e0"><td class="mdescLeft"> </td><td class="mdescRight">Total bytes to be transferred. <a href="#aebd195813157bfa7d42438f90c1055e0">More...</a><br/></td></tr>
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<tr class="separator:aebd195813157bfa7d42438f90c1055e0"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a1881cce73748c6ec2865369ddfc7267a"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c__edma__driver.html#a1881cce73748c6ec2865369ddfc7267a">state</a></td></tr>
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<tr class="memdesc:a1881cce73748c6ec2865369ddfc7267a"><td class="mdescLeft"> </td><td class="mdescRight">I2C master transfer status. <a href="#a1881cce73748c6ec2865369ddfc7267a">More...</a><br/></td></tr>
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<tr class="separator:a1881cce73748c6ec2865369ddfc7267a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a6e2f4a49072588927fba93dbd91541f3"><td class="memItemLeft" align="right" valign="top">edma_handle_t * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c__edma__driver.html#a6e2f4a49072588927fba93dbd91541f3">dmaHandle</a></td></tr>
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<tr class="memdesc:a6e2f4a49072588927fba93dbd91541f3"><td class="mdescLeft"> </td><td class="mdescRight">The eDMA handler used. <a href="#a6e2f4a49072588927fba93dbd91541f3">More...</a><br/></td></tr>
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<tr class="separator:a6e2f4a49072588927fba93dbd91541f3"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ad9b0ed66d282416716070f0e0d464c8d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__i2c__edma__driver.html#ga8e6dcec2d47eae5e1e5e2bb6c40b7e57">i2c_master_edma_transfer_callback_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c__edma__driver.html#ad9b0ed66d282416716070f0e0d464c8d">completionCallback</a></td></tr>
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<tr class="memdesc:ad9b0ed66d282416716070f0e0d464c8d"><td class="mdescLeft"> </td><td class="mdescRight">Callback function called after eDMA transfer finished. <a href="#ad9b0ed66d282416716070f0e0d464c8d">More...</a><br/></td></tr>
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<tr class="memitem:aa190dc1f8bbea43a9ad7f5f0b6de9859"><td class="memItemLeft" align="right" valign="top">void * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__i2c__edma__driver.html#aa190dc1f8bbea43a9ad7f5f0b6de9859">userData</a></td></tr>
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<tr class="memdesc:aa190dc1f8bbea43a9ad7f5f0b6de9859"><td class="mdescLeft"> </td><td class="mdescRight">Callback parameter passed to callback function. <a href="#aa190dc1f8bbea43a9ad7f5f0b6de9859">More...</a><br/></td></tr>
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<h4 class="groupheader">Field Documentation</h4>
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<td class="memname"><a class="el" href="group__i2c__driver.html#structi2c__master__transfer__t">i2c_master_transfer_t</a> i2c_master_edma_handle_t::transfer</td>
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<td class="memname">size_t i2c_master_edma_handle_t::transferSize</td>
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<td class="memname">uint8_t i2c_master_edma_handle_t::state</td>
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<td class="memname">edma_handle_t* i2c_master_edma_handle_t::dmaHandle</td>
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<td class="memname"><a class="el" href="group__i2c__edma__driver.html#ga8e6dcec2d47eae5e1e5e2bb6c40b7e57">i2c_master_edma_transfer_callback_t</a> i2c_master_edma_handle_t::completionCallback</td>
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<h2 class="groupheader">Typedef Documentation</h2>
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<td class="memname">typedef void(* i2c_master_edma_transfer_callback_t)(I2C_Type *base, i2c_master_edma_handle_t *handle, status_t status, void *userData)</td>
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<h2 class="groupheader">Function Documentation</h2>
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<td class="memname">void I2C_MasterCreateEDMAHandle </td>
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<td>(</td>
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<td class="paramtype">I2C_Type * </td>
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<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">i2c_master_edma_handle_t * </td>
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<td class="paramname"><em>handle</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="group__i2c__edma__driver.html#ga8e6dcec2d47eae5e1e5e2bb6c40b7e57">i2c_master_edma_transfer_callback_t</a> </td>
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<td class="paramname"><em>callback</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">void * </td>
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<td class="paramname"><em>userData</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">edma_handle_t * </td>
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<td class="paramname"><em>edmaHandle</em> </td>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">base</td><td>I2C peripheral base address. </td></tr>
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<tr><td class="paramname">handle</td><td>pointer to i2c_master_edma_handle_t structure. </td></tr>
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<tr><td class="paramname">callback</td><td>pointer to user callback function. </td></tr>
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<tr><td class="paramname">userData</td><td>user param passed to the callback function. </td></tr>
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<tr><td class="paramname">edmaHandle</td><td>eDMA handle pointer. </td></tr>
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</dd>
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<td class="memname">status_t I2C_MasterTransferEDMA </td>
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<td>(</td>
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<td class="paramtype">I2C_Type * </td>
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<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">i2c_master_edma_handle_t * </td>
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<td class="paramname"><em>handle</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="group__i2c__driver.html#structi2c__master__transfer__t">i2c_master_transfer_t</a> * </td>
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<td class="paramname"><em>xfer</em> </td>
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<td></td>
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<td>)</td>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">base</td><td>I2C peripheral base address. </td></tr>
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<tr><td class="paramname">handle</td><td>pointer to i2c_master_edma_handle_t structure. </td></tr>
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<tr><td class="paramname">xfer</td><td>pointer to transfer structure of <a class="el" href="group__i2c__driver.html#structi2c__master__transfer__t" title="I2C master transfer structure. ">i2c_master_transfer_t</a>. </td></tr>
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</dd>
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</dl>
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<dl class="retval"><dt>Return values</dt><dd>
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<table class="retval">
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<tr><td class="paramname">kStatus_Success</td><td>Sucessully complete the data transmission. </td></tr>
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<tr><td class="paramname">kStatus_I2C_Busy</td><td>Previous transmission still not finished. </td></tr>
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<tr><td class="paramname">kStatus_I2C_Timeout</td><td>Transfer error, wait signal timeout. </td></tr>
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<tr><td class="paramname">kStatus_I2C_ArbitrationLost</td><td>Transfer error, arbitration lost. </td></tr>
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<tr><td class="paramname">kStataus_I2C_Nak</td><td>Transfer error, receive Nak during transfer. </td></tr>
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</dd>
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</dl>
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<td class="memname">status_t I2C_MasterTransferGetCountEDMA </td>
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<td>(</td>
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<td class="paramtype">I2C_Type * </td>
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<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">i2c_master_edma_handle_t * </td>
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<td class="paramname"><em>handle</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">size_t * </td>
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<td class="paramname"><em>count</em> </td>
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<td></td>
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<td>)</td>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">base</td><td>I2C peripheral base address. </td></tr>
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<tr><td class="paramname">handle</td><td>pointer to i2c_master_edma_handle_t structure. </td></tr>
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<tr><td class="paramname">count</td><td>Number of bytes transferred so far by the non-blocking transaction. </td></tr>
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</dd>
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<td class="memname">void I2C_MasterTransferAbortEDMA </td>
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<td>(</td>
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<td class="paramtype">I2C_Type * </td>
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<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">i2c_master_edma_handle_t * </td>
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<td class="paramname"><em>handle</em> </td>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</div><div class="memdoc">
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">base</td><td>I2C peripheral base address. </td></tr>
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<tr><td class="paramname">handle</td><td>pointer to i2c_master_edma_handle_t structure. </td></tr>
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</table>
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</dd>
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</dl>
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</div>
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