Forum Post: RE: EDMA3 UART/block transfer on L137

Hi Sivaraj

Thanks for your answers. I was in vacation that's why I didn't write back earlier.

1. An increase of the UART FIFO trigger level would help to solve this problem that is true but it leads unfortunately to the problem that we can't automatically copy the data. As explanation:
   If we set the trigger level to 8, the dma would transfer on each event 8 bytes. But it can happen that we only have e.g. 5 bytes in the FIFO and the timout event occurs. We have no way to figure out how many bytes were effectively received.
2. I've double checked the EDMA configuration and it looks exactly how it should also after the second EDMA is configured.

Best regards,
Stefan