What is the DMA Usart received bits counter register?

mbagh.1 · ‎2024-08-18

I used DMA to read from USART, how can i know how many bytes are currently received by this and from which register i should read this number

STTwo-32 · ‎2024-08-18

Hello @mbagh.1

For such a use case, you have to use the DMA_SxNDTR register, more details available on the 1.1.12 part of the AN4031.

Best Regards.

STTwo-32

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Michal Dudka · ‎2024-08-18

NDTR register is key.

STTwo-32 · ‎2024-08-18

Hello @mbagh.1

For such a use case, you have to use the DMA_SxNDTR register, more details available on the 1.1.12 part of the AN4031.

Best Regards.

STTwo-32

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.