Thanks @ESP_houwenxiang. Just knowing that helps a lot with my planning.

And to help everyone else, I can confirm that I did indeed get DMA to DAC working with version 3.3.1 IDF. Actually the example i2s_adc_dac completely works with 3.3.1.

Yep, I'm having the same issue. Thanks for creating this complete example to reproduce the problem. One thing I noticed in your code is that use_apll is set true. However, I keep reading that it won't take effect unless one also sets fixed_mclk. I don't believe it's the source of the problem, but ma...

Ok, thanks. What version of ESP-IDF were you using?

I have tried ESP-IDF: "latest" v3.3.1

I made an attempt to downgrade to an older version but that somehow caused some issues and didn't compile on OSX. I'm sure it can be downgraded, but it got so tangled that I ran out of time.

I seem to be having the same problem. I only started with ESP32 this month and I got the latest esp-idf from GitHub. Board: Adafruit HUZZAH32 – ESP32 Feather Board ESP-IDF: "latest" v3.3.1 I've been able to make many other things work from the examples including producing a sine wave from the DAC wi...