Search found 2 matches

by oliverjrose99
Sat Nov 21, 2020 2:18 pm
Forum: ESP-IDF
Topic: Problem with sampling using ADC via DMA
Replies: 10
Views: 16492

Re: Problem with sampling using ADC via DMA

@AlexMa89 @maurogramajo I believe i have fixed the issue thank god. I had to manually power down the apll and then power it up after all the config funcs have been called. the following code can probably be cleaned up and includes optimized but it works. EDIT: This only seems to work up to 40000 or ...
by oliverjrose99
Sun Nov 15, 2020 2:00 pm
Forum: ESP-IDF
Topic: Problem with sampling using ADC via DMA
Replies: 10
Views: 16492

Re: Problem with sampling using ADC via DMA

Hi, i'm yet another person having issues with I2S ADC and DMA. Im trying to use the APLL clock as i need a sample rate of about 44100hz. with use_apll = false i get values returned which are correct but not the correct rate and with use_apll = true all i get returned is 0s. If any devs could post WO...