USART with DMA for DKCH101

By vincenzoalbarobotcom , 12 July 2021

Hello everyone!

I am using the SmartSonic Development Kit for MODCH_101-03-1 evaluation. The code that controls the sensors connected to the DKCH101 is the example one found on the TDK website. I would like to know if on this it is possible to enable (or is it already enabled) UART communication with DMA? Basically I would like to send a buffer containing 2520 8-byte elements. In the "board / sam / drivers / usart" folder of the project I found a file called usart.c in which there are some functions ready for transmission and reception via USART. But none of these seem to me to use DMA. Can you tell me if the example project is already configured to be able to transmit with DMA? If not, can you tell me the procedure to follow? Maybe starting from an example.

Thanks in advance for your support!

Vincenzo

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