https://community.nxp.com/t5/S32K/S32K3-Lpuart-using-DMA/m-p/1717935#M26818 <P>&nbsp; &nbsp; I refer to the S32K312_LPUART_DMA_EXAMPLE_RTD_LLD_100_34.zip attached to&nbsp;<A href="https://community.nxp.com/t5/S32K/S32K344-UART-DMA-example/m-p/1583510" target="_self"><SPAN class="">S32K344 UART DMA example</SPAN></A></P><P><SPAN class="">&nbsp; &nbsp; But it&nbsp;<SPAN>can't send and receive data!! Please&nbsp;help me see what's wrong with this.</SPAN></SPAN></P> Wed, 06 Sep 2023 09:26:49 GMT gaoweiguo 2023-09-06T09:26:49Z https://community.nxp.com/t5/S32K/S32K3-Lpuart-using-DMA/m-p/1717935#M26818 <P>&nbsp; &nbsp; I refer to the S32K312_LPUART_DMA_EXAMPLE_RTD_LLD_100_34.zip attached to&nbsp;<A href="https://community.nxp.com/t5/S32K/S32K344-UART-DMA-example/m-p/1583510" target="_self"><SPAN class="">S32K344 UART DMA example</SPAN></A></P><P><SPAN class="">&nbsp; &nbsp; But it&nbsp;<SPAN>can't send and receive data!! Please&nbsp;help me see what's wrong with this.</SPAN></SPAN></P> Wed, 06 Sep 2023 09:26:49 GMT https://community.nxp.com/t5/S32K/S32K3-Lpuart-using-DMA/m-p/1717935#M26818 gaoweiguo 2023-09-06T09:26:49Z https://community.nxp.com/t5/S32K/S32K3-Lpuart-using-DMA/m-p/1718573#M26859 <P>Hi,</P> <P>if using LPUART3 then you should modify DMAMUX setting to select&nbsp;LPUART3 triggers for DMA, try below<BR /><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="2023-09-07_10-00-49.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/239970i90A723CC4F2C245E/image-size/large?v=v2&amp;px=999" role="button" title="2023-09-07_10-00-49.png" alt="2023-09-07_10-00-49.png" /></span></P> <P>BR, Petr</P> Thu, 07 Sep 2023 08:10:45 GMT https://community.nxp.com/t5/S32K/S32K3-Lpuart-using-DMA/m-p/1718573#M26859 PetrS 2023-09-07T08:10:45Z