Does ESP32-S2 support i2s built-in ADC?
Does ESP32-S2 support i2s built-in ADC?
Hi I have bought ESP32-S2 board and tried its i2s built-in ADC. But it did not work. The error showed "I2S_MODE_ADC_BUILT_IN' was not declared in this scope". So if someone knows that whether ESP32-S2 support i2s built-in ADC? Thanks a lot!
-
- Posts: 9719
- Joined: Thu Nov 26, 2015 4:08 am
Re: Does ESP32-S2 support i2s built-in ADC?
On the -S2, the ADC doesn't use I2S for DMA anymore, it can do DMA by itself. Unfortunately, we don't really have a nice example to show that off, but you may be able to get some hints from the driver test code in esp-idf at components/driver/test/adc_dma_test .
Re: Does ESP32-S2 support i2s built-in ADC?
Thank you for the reply! So that means it can achieve high ADC sampling rate (e.g. 100kHz) without i2s, right?
Re: Does ESP32-S2 support i2s built-in ADC?
And, will you provide the relevant example in the near future?ESP_Sprite wrote: ↑Wed Apr 07, 2021 9:21 amOn the -S2, the ADC doesn't use I2S for DMA anymore, it can do DMA by itself. Unfortunately, we don't really have a nice example to show that off, but you may be able to get some hints from the driver test code in esp-idf at components/driver/test/adc_dma_test .
Who is online
Users browsing this forum: chegewara and 70 guests