ESP32S2 ADC-DMA DAC-DMA documentation/example code

[ploegmma]

Will there ever be any documentation on how to handle ADC continuous (DMA) read mode for the S2? I know that I could get some hints from the driver test code in esp-idf at components/driver/test/adc_dma_test. And I even found some guess work from someone. But how about some documentation?

Same for the DAC, see issue #6333 from almost a year ago...

It's nice to have new chips every few months but how to use them if it's almost a full time job to figure out the new black box magic each and every time?