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ADC Example

Overview

This sample demonstrates the basic K230 ADC HAL workflow.

Source file:

src/rtsmart/examples/peripheral/adc/test_adc.c

Sample Behavior

• initialize ADC

• read a raw value from the selected channel

• convert it to a voltage value based on the selected reference voltage

Key APIs

• drv_adc_init()

• drv_adc_read(channel)

• drv_adc_read_uv(channel, ref_uv)

• drv_adc_deinit()

Build and Run

cd src/rtsmart/examples/peripheral/adc
make
./test_adc [channel] [ref_uv]

• channel: ADC channel index, default 0

• ref_uv: reference voltage in microvolts, only 1800000 or 3600000

Output Example

The sample prints the raw ADC value and the converted voltage value for the selected channel.