Max uart DMA limithttps://devzone.nordicsemi.com/f/nordic-q-a/97769/max-uart-dma-limitHello Nordic Semi team, I am using the nrf52832 to send and recv data to a wifi module via uart. I am using the dma feature on the uart, and things work fine when RXD.MAXCNT &lt; = 255. When RXD.MAXCNT &gt; 255, there is a data loss on rx. void uart_recv_starten-USTelligent Community 13Thu, 16 Mar 2023 11:27:26 GMTRE: Max uart DMA limithttps://devzone.nordicsemi.com/thread/415668?ContentTypeID=1Thu, 16 Mar 2023 11:27:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:db47b3f8-cedb-4b16-8e54-b1016f9a8e80haricane<p>thanks for the detailed info Vidar. I guess the info was there in the datasheet :)</p><div style="clear:both;"></div>RE: Max uart DMA limithttps://devzone.nordicsemi.com/thread/415604?ContentTypeID=1Thu, 16 Mar 2023 07:22:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0ec2536d-f8de-442b-8989-2d79f0cfdefcVidar Berg<p>Hello Hari,</p> <p>Yes, your observation is correct, unfortunately. On nRF52832, you are limited to 256 bytes. This can be seen from the number of bits available in the&nbsp;<a title=" RXD.MAXCNT " href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/uarte.html?cp=5_2_0_34_9_12#register.RXD.MAXCNT">.MAXCNT</a>&nbsp;register.</p> <p>&nbsp;<img style="max-height:240px;max-width:320px;" alt=" " src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1678950913836v3.png" /></p> <p>Kind regards,</p> <p>Vidar</p><div style="clear:both;"></div>