// STM32 Nucleo-L031K6 HAL Blink + printf() example
// Simulation: https://wokwi.com/projects/367244067477216257

#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stm32l0xx_hal.h>




#define ADC_CHANNEL ADC_CHANNEL_0

int main(void)
{
  HAL_Init();

  // Configure ADC
  ADC_HandleTypeDef hadc;
  hadc.Instance = ADC1;
  hadc.Init.ClockPrescaler = ADC_CLOCKPRESCALER_PCLK_DIV4;
  hadc.Init.Resolution = ADC_RESOLUTION12b;
  hadc.Init.ScanConvMode = DISABLE;
  hadc.Init.ContinuousConvMode = DISABLE;
  hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  
  hadc.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
  HAL_ADC_Init(&hadc);

  // Configure PA0 as analog input
  ADC_ChannelConfTypeDef sConfig;
  sConfig.Channel = ADC_CHANNEL_0;
  sConfig.Rank = ADC_REGULAR_GROUP;
  hadc.Init.SamplingTime = ADC_SAMPLETIME_19CYCLES_5;
  HAL_ADC_ConfigChannel(&hadc, &sConfig);

 

  while (1)
  {
    uint16_t adc_value;
     
    HAL_ADC_Start(&hadc);
    HAL_ADC_PollForConversion(&hadc, HAL_MAX_DELAY);
    adc_value = HAL_ADC_GetValue(&hadc);
    printf("adc val:%d\n ", adc_value);
    HAL_Delay(100);
  }

  return 0;
}