How to use eDMA receive UART end interrupt ?

dearwww2000 · ‎03-15-2020

Dear All,

I want to ask a question : eDMA receive UART data. But I can't found the UART reveive end Interrupt.

I want to send a respionse UARTdata immediately after receive UART end edge.

Where is the eDMA receive end ISR?

LPUART configuration :

DMA configuration : (DMA Callback is not configure, can' t change name,)

SW code run :

receive UART data use " LPUART_DRV_ReceiveData(INST_LPUART0, (UINT8 *)DataBuf, DataLen)"

I only use " LPUART_DRV_GetReceiveStatus(INST_LPUART0, NULL)" to check the receive is completed or not.

But sometimes "LPUART_DRV_GetReceiveStatus()" is wrong and can't return "STATUS_SUCCESS".

I use SDK 3.0

Thank you

Mario

danielmartynek · ‎03-20-2020

I modified the SDK echo example to work with DMA.

The example is attached, please try it.

Thanks,

BR, Daniel