Search found 2 matches

by liubenyuan
Wed Oct 25, 2017 3:37 pm
Forum: General Discussion
Topic: How to use SPI of esp32 to read ADC samples periodically with fixed sample rate?
Replies: 5
Views: 8293

Re: How to use SPI of esp32 to read ADC samples periodically with fixed sample rate?

:cry: :cry:

It seems like there is no one use esp32 as a ADC sampler for wireless data collection.

Is there any demo on SPI dma using esp32?
by liubenyuan
Sat Oct 21, 2017 3:30 am
Forum: General Discussion
Topic: How to use SPI of esp32 to read ADC samples periodically with fixed sample rate?
Replies: 5
Views: 8293

How to use SPI of esp32 to read ADC samples periodically with fixed sample rate?

Hi, I want to use two ADC (ADS8864) and esp32 to sample analog waveform and send them to PC using WIFI. The data are sampled in a fixed sample rate, for example 100ksps for ADS8864, and I want to use SPI to read them into a buffer. When the data are ready, for example, 256 samples have been collecte...