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by sheinz
Fri Nov 01, 2019 8:25 am
Forum: ESP32 IDF
Topic: SPI continous transmission with DMA with circular linked list
Replies: 1
Views: 1031

Re: SPI continous transmission with DMA with circular linked list

Hi Chris, I think because your running your DMA output in a circular loop, the SPI peripheral sees it as one transmission, and therefore holds CS low during the entire transmission (i.e. forever). One trick you could do is use the MCPWM peripheral and run a PWM signal in parallel to your SPI output....

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