1. update register file about adc; 2. fix adc driver; 3. add UT for adc/dac; See merge request espressif/esp-idf!7776
This section provides examples how to configure and use ESP32’s internal peripherals like GPIO, UART, I2C, SPI, timers, counters, ADC / DAC, PWM, etc.
See the README.md file in the upper level examples directory for more information about examples.