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<div class="title">LPSCI DMA Driver<div class="ingroups"><a class="el" href="group__lpsci.html">LPSCI: Universal Asynchronous Receiver/Transmitter</a></div></div> </div>
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<a name="details" id="details"></a><h2 class="groupheader">Overview</h2>
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Data Structures</h2></td></tr>
<tr class="memitem:struct__lpsci__dma__handle"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpsci__dma__driver.html#struct__lpsci__dma__handle">lpsci_dma_handle_t</a></td></tr>
<tr class="memdesc:struct__lpsci__dma__handle"><td class="mdescLeft">&#160;</td><td class="mdescRight">LPSCI DMA handle. <a href="group__lpsci__dma__driver.html#struct__lpsci__dma__handle">More...</a><br/></td></tr>
<tr class="separator:struct__lpsci__dma__handle"><td class="memSeparator" colspan="2">&#160;</td></tr>
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Typedefs</h2></td></tr>
<tr class="memitem:ga3d0f59dc392d5ff57bca4f91e7bed339"><td class="memItemLeft" align="right" valign="top">typedef void(*&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpsci__dma__driver.html#ga3d0f59dc392d5ff57bca4f91e7bed339">lpsci_dma_transfer_callback_t</a> )(UART0_Type *base, lpsci_dma_handle_t *handle, status_t status, void *userData)</td></tr>
<tr class="memdesc:ga3d0f59dc392d5ff57bca4f91e7bed339"><td class="mdescLeft">&#160;</td><td class="mdescRight">LPSCI transfer callback function. <a href="#ga3d0f59dc392d5ff57bca4f91e7bed339">More...</a><br/></td></tr>
<tr class="separator:ga3d0f59dc392d5ff57bca4f91e7bed339"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="member-group"></a>
eDMA transactional</h2></td></tr>
<tr class="memitem:ga895fd300f48eda8db4867df07805ef1f"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpsci__dma__driver.html#ga895fd300f48eda8db4867df07805ef1f">LPSCI_TransferCreateHandleDMA</a> (UART0_Type *base, lpsci_dma_handle_t *handle, <a class="el" href="group__lpsci__dma__driver.html#ga3d0f59dc392d5ff57bca4f91e7bed339">lpsci_dma_transfer_callback_t</a> callback, void *userData, <a class="el" href="group__dma.html#structdma__handle__t">dma_handle_t</a> *txDmaHandle, <a class="el" href="group__dma.html#structdma__handle__t">dma_handle_t</a> *rxDmaHandle)</td></tr>
<tr class="memdesc:ga895fd300f48eda8db4867df07805ef1f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Initializes the LPSCI handle which is used in transactional functions. <a href="#ga895fd300f48eda8db4867df07805ef1f">More...</a><br/></td></tr>
<tr class="separator:ga895fd300f48eda8db4867df07805ef1f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga387fcfd0c28f10deaa5815b67fca80d0"><td class="memItemLeft" align="right" valign="top">status_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpsci__dma__driver.html#ga387fcfd0c28f10deaa5815b67fca80d0">LPSCI_TransferSendDMA</a> (UART0_Type *base, lpsci_dma_handle_t *handle, <a class="el" href="group__lpsci__driver.html#structlpsci__transfer__t">lpsci_transfer_t</a> *xfer)</td></tr>
<tr class="memdesc:ga387fcfd0c28f10deaa5815b67fca80d0"><td class="mdescLeft">&#160;</td><td class="mdescRight">Sends data using DMA. <a href="#ga387fcfd0c28f10deaa5815b67fca80d0">More...</a><br/></td></tr>
<tr class="separator:ga387fcfd0c28f10deaa5815b67fca80d0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga62b11724062107f00f60249278469baf"><td class="memItemLeft" align="right" valign="top">status_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpsci__dma__driver.html#ga62b11724062107f00f60249278469baf">LPSCI_TransferReceiveDMA</a> (UART0_Type *base, lpsci_dma_handle_t *handle, <a class="el" href="group__lpsci__driver.html#structlpsci__transfer__t">lpsci_transfer_t</a> *xfer)</td></tr>
<tr class="memdesc:ga62b11724062107f00f60249278469baf"><td class="mdescLeft">&#160;</td><td class="mdescRight">Receives data using DMA. <a href="#ga62b11724062107f00f60249278469baf">More...</a><br/></td></tr>
<tr class="separator:ga62b11724062107f00f60249278469baf"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga013caa6b8e64ae5db988a51e291f7fea"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpsci__dma__driver.html#ga013caa6b8e64ae5db988a51e291f7fea">LPSCI_TransferAbortSendDMA</a> (UART0_Type *base, lpsci_dma_handle_t *handle)</td></tr>
<tr class="memdesc:ga013caa6b8e64ae5db988a51e291f7fea"><td class="mdescLeft">&#160;</td><td class="mdescRight">Aborts the sent data using DMA. <a href="#ga013caa6b8e64ae5db988a51e291f7fea">More...</a><br/></td></tr>
<tr class="separator:ga013caa6b8e64ae5db988a51e291f7fea"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaee1c6ae4f57665e428dd8e17fe810999"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpsci__dma__driver.html#gaee1c6ae4f57665e428dd8e17fe810999">LPSCI_TransferAbortReceiveDMA</a> (UART0_Type *base, lpsci_dma_handle_t *handle)</td></tr>
<tr class="memdesc:gaee1c6ae4f57665e428dd8e17fe810999"><td class="mdescLeft">&#160;</td><td class="mdescRight">Aborts the receive data using DMA. <a href="#gaee1c6ae4f57665e428dd8e17fe810999">More...</a><br/></td></tr>
<tr class="separator:gaee1c6ae4f57665e428dd8e17fe810999"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga17f513853c3677dfbf26b05fc50e252c"><td class="memItemLeft" align="right" valign="top">status_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpsci__dma__driver.html#ga17f513853c3677dfbf26b05fc50e252c">LPSCI_TransferGetSendCountDMA</a> (UART0_Type *base, lpsci_dma_handle_t *handle, uint32_t *count)</td></tr>
<tr class="memdesc:ga17f513853c3677dfbf26b05fc50e252c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets the number of bytes written to the LPSCI TX register. <a href="#ga17f513853c3677dfbf26b05fc50e252c">More...</a><br/></td></tr>
<tr class="separator:ga17f513853c3677dfbf26b05fc50e252c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gac780156eb0c3b2df876869b0b8d35e71"><td class="memItemLeft" align="right" valign="top">status_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpsci__dma__driver.html#gac780156eb0c3b2df876869b0b8d35e71">LPSCI_TransferGetReceiveCountDMA</a> (UART0_Type *base, lpsci_dma_handle_t *handle, uint32_t *count)</td></tr>
<tr class="memdesc:gac780156eb0c3b2df876869b0b8d35e71"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets the number of bytes that have been received. <a href="#gac780156eb0c3b2df876869b0b8d35e71">More...</a><br/></td></tr>
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<hr/><h2 class="groupheader">Data Structure Documentation</h2>
<a name="struct__lpsci__dma__handle" id="struct__lpsci__dma__handle"></a>
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<td class="memname">struct _lpsci_dma_handle</td>
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<tr><td colspan="2"><h3>Data Fields</h3></td></tr>
<tr class="memitem:ab29f24957de7ba621eaa5916724dad03"><td class="memItemLeft" align="right" valign="top">UART0_Type *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpsci__dma__driver.html#ab29f24957de7ba621eaa5916724dad03">base</a></td></tr>
<tr class="memdesc:ab29f24957de7ba621eaa5916724dad03"><td class="mdescLeft">&#160;</td><td class="mdescRight">LPSCI peripheral base address. <a href="#ab29f24957de7ba621eaa5916724dad03">More...</a><br/></td></tr>
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<tr class="memitem:a378782e1f4bd37dc82a5b5cf4aad4f20"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__lpsci__dma__driver.html#ga3d0f59dc392d5ff57bca4f91e7bed339">lpsci_dma_transfer_callback_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpsci__dma__driver.html#a378782e1f4bd37dc82a5b5cf4aad4f20">callback</a></td></tr>
<tr class="memdesc:a378782e1f4bd37dc82a5b5cf4aad4f20"><td class="mdescLeft">&#160;</td><td class="mdescRight">Callback function. <a href="#a378782e1f4bd37dc82a5b5cf4aad4f20">More...</a><br/></td></tr>
<tr class="separator:a378782e1f4bd37dc82a5b5cf4aad4f20"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a423d97b66e25d1f7e301dd4a2e8ea283"><td class="memItemLeft" align="right" valign="top">void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpsci__dma__driver.html#a423d97b66e25d1f7e301dd4a2e8ea283">userData</a></td></tr>
<tr class="memdesc:a423d97b66e25d1f7e301dd4a2e8ea283"><td class="mdescLeft">&#160;</td><td class="mdescRight">UART callback function parameter. <a href="#a423d97b66e25d1f7e301dd4a2e8ea283">More...</a><br/></td></tr>
<tr class="separator:a423d97b66e25d1f7e301dd4a2e8ea283"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a3a6257be98229fc644b3a52297bb6794"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpsci__dma__driver.html#a3a6257be98229fc644b3a52297bb6794">rxDataSizeAll</a></td></tr>
<tr class="memdesc:a3a6257be98229fc644b3a52297bb6794"><td class="mdescLeft">&#160;</td><td class="mdescRight">Size of the data to receive. <a href="#a3a6257be98229fc644b3a52297bb6794">More...</a><br/></td></tr>
<tr class="separator:a3a6257be98229fc644b3a52297bb6794"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5118f7518d32f0d19511784ce7073294"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpsci__dma__driver.html#a5118f7518d32f0d19511784ce7073294">txDataSizeAll</a></td></tr>
<tr class="memdesc:a5118f7518d32f0d19511784ce7073294"><td class="mdescLeft">&#160;</td><td class="mdescRight">Size of the data to send out. <a href="#a5118f7518d32f0d19511784ce7073294">More...</a><br/></td></tr>
<tr class="separator:a5118f7518d32f0d19511784ce7073294"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa8ddfeb5420d031ed88fb54c3c2de67c"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__dma.html#structdma__handle__t">dma_handle_t</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpsci__dma__driver.html#aa8ddfeb5420d031ed88fb54c3c2de67c">txDmaHandle</a></td></tr>
<tr class="memdesc:aa8ddfeb5420d031ed88fb54c3c2de67c"><td class="mdescLeft">&#160;</td><td class="mdescRight">The DMA TX channel used. <a href="#aa8ddfeb5420d031ed88fb54c3c2de67c">More...</a><br/></td></tr>
<tr class="separator:aa8ddfeb5420d031ed88fb54c3c2de67c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4c9a77d71a886729fe8b9e259828eb70"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__dma.html#structdma__handle__t">dma_handle_t</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpsci__dma__driver.html#a4c9a77d71a886729fe8b9e259828eb70">rxDmaHandle</a></td></tr>
<tr class="memdesc:a4c9a77d71a886729fe8b9e259828eb70"><td class="mdescLeft">&#160;</td><td class="mdescRight">The DMA RX channel used. <a href="#a4c9a77d71a886729fe8b9e259828eb70">More...</a><br/></td></tr>
<tr class="separator:a4c9a77d71a886729fe8b9e259828eb70"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:adb9e6deefd2353d04c33d818255acbbf"><td class="memItemLeft" align="right" valign="top">volatile uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpsci__dma__driver.html#adb9e6deefd2353d04c33d818255acbbf">txState</a></td></tr>
<tr class="memdesc:adb9e6deefd2353d04c33d818255acbbf"><td class="mdescLeft">&#160;</td><td class="mdescRight">TX transfer state. <a href="#adb9e6deefd2353d04c33d818255acbbf">More...</a><br/></td></tr>
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<tr class="memitem:a5c4a7d81c2a1d36e5dbe6f55772cf115"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a5c4a7d81c2a1d36e5dbe6f55772cf115"></a>
volatile uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpsci__dma__driver.html#a5c4a7d81c2a1d36e5dbe6f55772cf115">rxState</a></td></tr>
<tr class="memdesc:a5c4a7d81c2a1d36e5dbe6f55772cf115"><td class="mdescLeft">&#160;</td><td class="mdescRight">RX transfer state. <br/></td></tr>
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<h4 class="groupheader">Field Documentation</h4>
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<td class="memname">UART0_Type* lpsci_dma_handle_t::base</td>
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<td class="memname"><a class="el" href="group__lpsci__dma__driver.html#ga3d0f59dc392d5ff57bca4f91e7bed339">lpsci_dma_transfer_callback_t</a> lpsci_dma_handle_t::callback</td>
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<td class="memname">void* lpsci_dma_handle_t::userData</td>
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<td class="memname">size_t lpsci_dma_handle_t::rxDataSizeAll</td>
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<td class="memname">size_t lpsci_dma_handle_t::txDataSizeAll</td>
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<td class="memname"><a class="el" href="group__dma.html#structdma__handle__t">dma_handle_t</a>* lpsci_dma_handle_t::txDmaHandle</td>
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<td class="memname"><a class="el" href="group__dma.html#structdma__handle__t">dma_handle_t</a>* lpsci_dma_handle_t::rxDmaHandle</td>
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<td class="memname">volatile uint8_t lpsci_dma_handle_t::txState</td>
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<h2 class="groupheader">Typedef Documentation</h2>
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<td class="memname">typedef void(* lpsci_dma_transfer_callback_t)(UART0_Type *base, lpsci_dma_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 LPSCI_TransferCreateHandleDMA </td>
<td>(</td>
<td class="paramtype">UART0_Type *&#160;</td>
<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">lpsci_dma_handle_t *&#160;</td>
<td class="paramname"><em>handle</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__lpsci__dma__driver.html#ga3d0f59dc392d5ff57bca4f91e7bed339">lpsci_dma_transfer_callback_t</a>&#160;</td>
<td class="paramname"><em>callback</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">void *&#160;</td>
<td class="paramname"><em>userData</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__dma.html#structdma__handle__t">dma_handle_t</a> *&#160;</td>
<td class="paramname"><em>txDmaHandle</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__dma.html#structdma__handle__t">dma_handle_t</a> *&#160;</td>
<td class="paramname"><em>rxDmaHandle</em>&#160;</td>
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<td>)</td>
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<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">handle</td><td>Pointer to lpsci_dma_handle_t structure </td></tr>
<tr><td class="paramname">base</td><td>LPSCI peripheral base address </td></tr>
<tr><td class="paramname">rxDmaHandle</td><td>User requested DMA handle for RX DMA transfer </td></tr>
<tr><td class="paramname">txDmaHandle</td><td>User requested DMA handle for TX DMA transfer </td></tr>
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<td class="memname">status_t LPSCI_TransferSendDMA </td>
<td>(</td>
<td class="paramtype">UART0_Type *&#160;</td>
<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">lpsci_dma_handle_t *&#160;</td>
<td class="paramname"><em>handle</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__lpsci__driver.html#structlpsci__transfer__t">lpsci_transfer_t</a> *&#160;</td>
<td class="paramname"><em>xfer</em>&#160;</td>
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<td></td>
<td>)</td>
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<p>This function sends data using DMA. This is a non-blocking function, which returns immediately. When all data is sent, the send callback function is called.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">handle</td><td>LPSCI handle pointer. </td></tr>
<tr><td class="paramname">xfer</td><td>LPSCI DMA transfer structure, see <a class="el" href="group__lpsci__driver.html#structlpsci__transfer__t" title="LPSCI transfer structure. ">lpsci_transfer_t</a>. </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">kStatus_Success</td><td>if successful, others failed. </td></tr>
<tr><td class="paramname">kStatus_LPSCI_TxBusy</td><td>Previous transfer on going. </td></tr>
<tr><td class="paramname">kStatus_InvalidArgument</td><td>Invalid argument. </td></tr>
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</dd>
</dl>
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<td class="memname">status_t LPSCI_TransferReceiveDMA </td>
<td>(</td>
<td class="paramtype">UART0_Type *&#160;</td>
<td class="paramname"><em>base</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">lpsci_dma_handle_t *&#160;</td>
<td class="paramname"><em>handle</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__lpsci__driver.html#structlpsci__transfer__t">lpsci_transfer_t</a> *&#160;</td>
<td class="paramname"><em>xfer</em>&#160;</td>
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<td></td>
<td>)</td>
<td></td><td></td>
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<p>This function receives data using DMA. This is a non-blocking function, which returns immediately. When all data is received, the receive callback function is called.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">handle</td><td>Pointer to lpsci_dma_handle_t structure </td></tr>
<tr><td class="paramname">xfer</td><td>LPSCI DMA transfer structure, see <a class="el" href="group__lpsci__driver.html#structlpsci__transfer__t" title="LPSCI transfer structure. ">lpsci_transfer_t</a>. </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">kStatus_Success</td><td>if successful, others failed. </td></tr>
<tr><td class="paramname">kStatus_LPSCI_RxBusy</td><td>Previous transfer on going. </td></tr>
<tr><td class="paramname">kStatus_InvalidArgument</td><td>Invalid argument. </td></tr>
</table>
</dd>
</dl>
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<td class="memname">void LPSCI_TransferAbortSendDMA </td>
<td>(</td>
<td class="paramtype">UART0_Type *&#160;</td>
<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">lpsci_dma_handle_t *&#160;</td>
<td class="paramname"><em>handle</em>&#160;</td>
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<p>This function aborts the sent data using DMA.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">handle</td><td>Pointer to lpsci_dma_handle_t structure. </td></tr>
</table>
</dd>
</dl>
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<td class="memname">void LPSCI_TransferAbortReceiveDMA </td>
<td>(</td>
<td class="paramtype">UART0_Type *&#160;</td>
<td class="paramname"><em>base</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">lpsci_dma_handle_t *&#160;</td>
<td class="paramname"><em>handle</em>&#160;</td>
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<td></td>
<td>)</td>
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<p>This function aborts the receive data using DMA.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">handle</td><td>Pointer to lpsci_dma_handle_t structure. </td></tr>
</table>
</dd>
</dl>
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<td class="memname">status_t LPSCI_TransferGetSendCountDMA </td>
<td>(</td>
<td class="paramtype">UART0_Type *&#160;</td>
<td class="paramname"><em>base</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">lpsci_dma_handle_t *&#160;</td>
<td class="paramname"><em>handle</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t *&#160;</td>
<td class="paramname"><em>count</em>&#160;</td>
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<td></td>
<td>)</td>
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<p>This function gets the number of bytes that have been written to the LPSCI TX register by DMA.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">base</td><td>LPSCI peripheral base address. </td></tr>
<tr><td class="paramname">handle</td><td>LPSCI handle pointer. </td></tr>
<tr><td class="paramname">count</td><td>Send bytes count. </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">kStatus_NoTransferInProgress</td><td>No send in progress. </td></tr>
<tr><td class="paramname">kStatus_InvalidArgument</td><td>Parameter is invalid. </td></tr>
<tr><td class="paramname">kStatus_Success</td><td>Get successfully through the parameter <code>count</code>; </td></tr>
</table>
</dd>
</dl>
</div>
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<td class="memname">status_t LPSCI_TransferGetReceiveCountDMA </td>
<td>(</td>
<td class="paramtype">UART0_Type *&#160;</td>
<td class="paramname"><em>base</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">lpsci_dma_handle_t *&#160;</td>
<td class="paramname"><em>handle</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t *&#160;</td>
<td class="paramname"><em>count</em>&#160;</td>
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<td></td>
<td>)</td>
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<p>This function gets the number of bytes that have been received.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">base</td><td>LPSCI peripheral base address. </td></tr>
<tr><td class="paramname">handle</td><td>LPSCI handle pointer. </td></tr>
<tr><td class="paramname">count</td><td>Receive bytes count. </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">kStatus_NoTransferInProgress</td><td>No receive in progress. </td></tr>
<tr><td class="paramname">kStatus_InvalidArgument</td><td>Parameter is invalid. </td></tr>
<tr><td class="paramname">kStatus_Success</td><td>Get successfully through the parameter <code>count</code>; </td></tr>
</table>
</dd>
</dl>
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