ESP32S3: When GPIO9 configured to ADC1_CH8, GPIO21 can't work

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Charles_Wen
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Joined: Fri Aug 06, 2021 1:39 am

ESP32S3: When GPIO9 configured to ADC1_CH8, GPIO21 can't work

Postby Charles_Wen » Wed Jun 07, 2023 3:58 am

On ESP32S3, IDF version is ESP-IDF v5.0-dev-75-g1561fbd2c5-dirty 2nd stage bootloader. If GPIO9 configured to ADC1_CH8, then GPIO21 configured to OUTPUT, high level, in can't output high level voltage.
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