hello,
we are using uart1 to receive and send data,at baud:921600. and i am using ti-sdk-am335x-evm-06.00.00.00-Linux-x86-Install
but we found that the uart missed some characters when receive the data by 921600 bps if we enable the UART DMA. but it's ok if i use the UART polling mode.
there are some overrun on UART if we enable the UART EDMA, i don't know where is wrong?
we want to use UART DMA to reduce the CPU loading and improve the performance; and there are continuous data which need receive on AM335X side by UART.
now the question is:
1 how can i enable UART DMA mode?
2 Is there known issue on UART DMA mode?
3 is there a user guide or examples to enable UART DMA?
Thanks a lot!