charge_controller_target/src/peripherals/adc/adc.c

#include "src/battery.h"
#include "src/interfaces/i2c_controller_interface.h"
#include "ti/driverlib/dl_i2c.h"
#include "ti/driverlib/m0p/dl_core.h"
#include "ti_msp_dl_config.h"
#include "src/peripherals/adc/adc.h"
#include <stdint.h>
#include <stdio.h>
#include "src/peripherals/adc/adc_interface.h"


static ADC_Params adc_params;
static ADC_MeasurementState adc_state = ADC_STATE_CONFIGURE;


void updateADCReading_multichannel(uint8_t slot, uint8_t channel) {
  
  while (adc_state != ADC_STATE_DONE) {
    switch (adc_state) {

    case ADC_STATE_CONFIGURE:
      adc_params.channel = channel;
      //printf("Channel: %d\n", adc_params.channel);
      adc_params.resolution = 12;
      adc_params.continuous = 0;
      adc_params.gain = 1;
      adc_hal.configure(slot, adc_params);
      //ADC_SetConfigurationBytes(adc_params);
      adc_state = ADC_STATE_WAIT;
      break;

    case ADC_STATE_WAIT:
      //if (ADC_CheckReadyBit(slot, adc_params)) {
      if(adc_hal.is_ready(slot, adc_params)){
        adc_state = ADC_STATE_READ;
      }
      break;

    case ADC_STATE_READ:
      if (channel == 0) {

        int16_t raw_adc_voltage = adc_hal.read_raw(slot, adc_params);
        batteries[slot].voltage =
            adc_hal.convert_voltage(raw_adc_voltage, adc_params); 
        printf("[ADC] Battery voltage for slot %d is %u mV.\n", slot,
               batteries[slot].voltage);
        adc_state = ADC_STATE_DONE;

      } else if (channel == 1) {

        int16_t raw_adc_current = adc_hal.read_raw(slot, adc_params);
        batteries[slot].current =
            adc_hal.convert_current(raw_adc_current, adc_params);
        printf("[ADC] Battery current for slot %d is %u mA.\n", slot,
               batteries[slot].current);

        adc_state = ADC_STATE_DONE;
      }
      break;
    default:
      channel = 0;
      adc_state = ADC_STATE_CONFIGURE;
      break;
    }
  }

  adc_state = ADC_STATE_CONFIGURE;
}