#include "main.h"

ADC_HandleTypeDef hadc1;

void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_ADC1_Init(void);


void ch0()
{
    ADC_ChannelConfTypeDef sConfig = {0};
	  sConfig.Channel = ADC_CHANNEL_0;
	  sConfig.Rank = ADC_REGULAR_RANK_1;
	  sConfig.SamplingTime = ADC_SAMPLINGTIME_COMMON_1;
	  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
	  {
	    Error_Handler();
	  }
}

    void ch1()
{
    ADC_ChannelConfTypeDef sConfig = {0};
	  sConfig.Channel = ADC_CHANNEL_1;
	  sConfig.Rank = ADC_REGULAR_RANK_1;
	  sConfig.SamplingTime = ADC_SAMPLINGTIME_COMMON_1;
	  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
	  {
	    Error_Handler();
	  }
}

    void ch2()
{
    ADC_ChannelConfTypeDef sConfig = {0};
	  sConfig.Channel = ADC_CHANNEL_4;
	  sConfig.Rank = ADC_REGULAR_RANK_1;
	  sConfig.SamplingTime = ADC_SAMPLINGTIME_COMMON_1;
	  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
	  {
	    Error_Handler();
	  }
}

int main(void)
{
    HAL_Init();

    SystemClock_Config();
    MX_GPIO_Init();
    MX_ADC1_Init();

    while (1)
    {
        ch0();
        HAL_ADC_Start(&hadc1);
        HAL_ADC_PollForConversion(&hadc1, 100);
        int result = HAL_ADC_GetValue(&hadc1);
        HAL_ADC_Stop(&hadc1);

        if (result < 2047)
            HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, RESET);
        else
            HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, SET);

        ch1();
        HAL_ADC_Start(&hadc1);
        HAL_ADC_PollForConversion(&hadc1, 100);
        int result2 = HAL_ADC_GetValue(&hadc1);
        HAL_ADC_Stop(&hadc1);

        if (result2 < 2047)
            HAL_GPIO_WritePin(GPIOA, GPIO_PIN_6, RESET);
        else
            HAL_GPIO_WritePin(GPIOA, GPIO_PIN_6, SET);

        ch2();
        HAL_ADC_Start(&hadc1);
        HAL_ADC_PollForConversion(&hadc1, 100);
        int result3 = HAL_ADC_GetValue(&hadc1);
        HAL_ADC_Stop(&hadc1);

        if (result3 < 2047)
            HAL_GPIO_WritePin(GPIOA, GPIO_PIN_7, GPIO_PIN_RESET);
        else
            HAL_GPIO_WritePin(GPIOA, GPIO_PIN_7, GPIO_PIN_SET);
    }
}

void SystemClock_Config(void)
{
    RCC_OscInitTypeDef RCC_OscInitStruct = {0};
    RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

    RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
    RCC_OscInitStruct.HSIState = RCC_HSI_ON;
    RCC_OscInitStruct.HSIDiv = RCC_HSI_DIV1;
    RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;

    if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
    {
        Error_Handler();
    }

    RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK |
                                 RCC_CLOCKTYPE_SYSCLK |
                                 RCC_CLOCKTYPE_PCLK1;
    RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
    RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
    RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;
    RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV1;

    if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
    {
        Error_Handler();
    }
}

static void MX_ADC1_Init(void)
{
    hadc1.Instance = ADC1;
    hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV1;
    hadc1.Init.Resolution = ADC_RESOLUTION_12B;
    hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;

    hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE;  
    hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
    hadc1.Init.LowPowerAutoWait = DISABLE;
    hadc1.Init.LowPowerAutoPowerOff = DISABLE;
    hadc1.Init.ContinuousConvMode = DISABLE;
    hadc1.Init.NbrOfConversion = 1;
    hadc1.Init.DiscontinuousConvMode = DISABLE;
    hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
    hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
    hadc1.Init.DMAContinuousRequests = DISABLE;
    hadc1.Init.Overrun = ADC_OVR_DATA_PRESERVED;

    hadc1.Init.SamplingTimeCommon1 = ADC_SAMPLETIME_1CYCLE_5;
    hadc1.Init.SamplingTimeCommon2 = ADC_SAMPLETIME_1CYCLE_5;

    hadc1.Init.OversamplingMode = DISABLE;
    hadc1.Init.TriggerFrequencyMode = ADC_TRIGGER_FREQ_HIGH;

    if (HAL_ADC_Init(&hadc1) != HAL_OK)
    {
        Error_Handler();
    }
}

static void MX_GPIO_Init(void)
{
    GPIO_InitTypeDef GPIO_InitStruct = {0};

    __HAL_RCC_GPIOA_CLK_ENABLE();

    HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7, GPIO_PIN_RESET);

    GPIO_InitStruct.Pin = GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;

    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}

void Error_Handler(void)
{
    __disable_irq();
    while (1)
    {
    }
}

#ifdef USE_FULL_ASSERT
void assert_failed(uint8_t *file, uint32_t line)
{
}
#endif