Commit Graph

4 Commits

Author SHA1 Message Date
Armando
bb074904b4 adc: no longer support adc2 oneshot mode on esp32c3
Due to HW limitation, we don't support this anymore. On c3, ADC2 under oneshot mode is not stable.

However, you can enable CONFIG_ADC_ONESHOT_FORCE_USE_ADC2_ON_C3 to force use
ADC2.

Refer to errata to know more details:
https://www.espressif.com/sites/default/files/documentation/esp32-s3_errata_en.pdf
https://www.espressif.com/sites/default/files/documentation/esp32-c3_errata_en.pdf
2022-12-16 12:07:38 +08:00
Armando
1c373cf293 adc: no longer support adc2 continuous mode on esp32c3 and esp32s3
Due to HW limitation, we don't support this anymore. On s3 and c3, ADC2 under continuous  mode is not stable.

However, you can enable CONFIG_ADC_CONTINUOUS_FORCE_USE_ADC2_ON_C3_S3 to force use
ADC2.

Refer to errata to know more details:
https://www.espressif.com/sites/default/files/documentation/esp32-s3_errata_en.pdf
https://www.espressif.com/sites/default/files/documentation/esp32-c3_errata_en.pdf
2022-12-16 12:07:38 +08:00
Armando
1fdf242750 esp_adc: add a kconfig to disable dac on certain adc IOs
Added a kconfig option. By default, when using ADC oneshot
driver, it will disable
DAC channels:
- ESP32:   IO25, IO26
- ESP32S2: IO17, IO18
if ADC2 is in use.

You can disable this option, to measure DAC output, via internal ADC.
This is for test usage.
2022-08-23 10:48:18 +08:00
Armando
5b523a3313 esp_adc: new esp_adc component and adc drivers 2022-07-15 18:31:00 +08:00