LP-AM263: How to implement UART reception of variable-length data using DMA mode

Wei Yao

Part Number: LP-AM263

Tool/software:

We want to implement UART reception of variable-length data using DMA mode. But there is no uart_receive_idle_interupt in SDK.

Or I need re-write UART_edmaIsrRx() function and re-register to EDMA Interupt.

1 month ago

0 Shaunak Deshpande 1 month ago

TI__Genius 16642 points

Hi Wei Yao,

Partial mode is supported in Interrupt mode but in not DMA mode for UART in the MCU_PLUS_SDK. Would doing a byte-byte (trigger level = 1Byte) transfer work for your use-case in DMA mode? Or can you switch to interrupt mode?

Regards,
Shaunak

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LP-AM263: How to implement UART reception of variable-length data using DMA mode