How to use SPI DMA function in ESP32-S3?

gogollx
Posts: 2
Joined: Fri Nov 10, 2023 8:17 am

How to use SPI DMA function in ESP32-S3?

Postby gogollx » Wed Nov 15, 2023 12:14 pm

In my project, ADC data transfer via SPI. At present, host(ESP32-S3) read SPI data when GPIO interrupts are triggered by ADC's DRDY signal. In this way, it takes up a lot of kernel time and the ADC update speed is limited. Can I directly use DMA to read ADC data through SPI? Are there any related examples to refer to?

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