#include "main.h"

ADC_HandleTypeDef hadc1;
ADC_HandleTypeDef hadc2;
DMA_HandleTypeDef hdma_adc1;
DMA_HandleTypeDef hdma_adc2;

TIM_HandleTypeDef htim1;
TIM_HandleTypeDef htim2;

void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_DMA_Init(void);
static void MX_ADC1_Init(void);
static void MX_TIM2_Init(void);
static void MX_ADC2_Init(void);
static void MX_TIM1_Init(void);

uint32_t adc1 = 0, adc2 = 0;
float voltage0 = 0.0, voltage1 = 0.0;

void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef *adc) {
	if (adc->Instance == ADC1)
		voltage0 = (adc1 * 3.3) / 4095;
	if (adc->Instance == ADC2)
		voltage1 = (adc2 * 3.3) / 4095;
}

int main(void) {

	HAL_Init();
	SystemClock_Config();

	MX_GPIO_Init();
	MX_DMA_Init();
	MX_ADC1_Init();
	MX_TIM2_Init();
	MX_ADC2_Init();
	MX_TIM1_Init();

	if (HAL_OK != HAL_ADC_Start_DMA(&hadc1, &adc1, 1))
		Error_Handler();

	if (HAL_OK != HAL_ADC_Start_DMA(&hadc2, &adc2, 1))
		Error_Handler();

	if (HAL_OK != HAL_TIM_Base_Start(&htim1))
		Error_Handler();

	if (HAL_OK != HAL_TIM_Base_Start(&htim2))
		Error_Handler();

	while (1) {

	}
}

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

	/** Initializes the RCC Oscillators according to the specified parameters
	 * in the RCC_OscInitTypeDef structure.
	 */
	RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
	RCC_OscInitStruct.HSIState = RCC_HSI_ON;
	RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
	RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
	RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
	RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL16;
	if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
		Error_Handler();
	}

	/** Initializes the CPU, AHB and APB buses clocks
	 */
	RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK
			| RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
	RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
	RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
	RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
	RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

	if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) {
		Error_Handler();
	}
	PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_TIM1;
	PeriphClkInit.Tim1ClockSelection = RCC_TIM1CLK_HCLK;
	if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) {
		Error_Handler();
	}
}

/**
 * @brief ADC1 Initialization Function
 * @param None
 * @retval None
 */
static void MX_ADC1_Init(void) {

	ADC_MultiModeTypeDef multimode = { 0 };
	ADC_ChannelConfTypeDef sConfig = { 0 };

	hadc1.Instance = ADC1;
	hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV1;
	hadc1.Init.Resolution = ADC_RESOLUTION_12B;
	hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE;
	hadc1.Init.ContinuousConvMode = ENABLE;
	hadc1.Init.DiscontinuousConvMode = DISABLE;
	hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_RISING;
	hadc1.Init.ExternalTrigConv = ADC_EXTERNALTRIGCONV_T1_TRGO;
	hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
	hadc1.Init.NbrOfConversion = 1;
	hadc1.Init.DMAContinuousRequests = ENABLE;
	hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
	hadc1.Init.LowPowerAutoWait = DISABLE;
	hadc1.Init.Overrun = ADC_OVR_DATA_OVERWRITTEN;
	if (HAL_ADC_Init(&hadc1) != HAL_OK) {
		Error_Handler();
	}

	multimode.Mode = ADC_MODE_INDEPENDENT;
	if (HAL_ADCEx_MultiModeConfigChannel(&hadc1, &multimode) != HAL_OK) {
		Error_Handler();
	}

	sConfig.Channel = ADC_CHANNEL_1;
	sConfig.Rank = ADC_REGULAR_RANK_1;
	sConfig.SingleDiff = ADC_SINGLE_ENDED;
	sConfig.SamplingTime = ADC_SAMPLETIME_601CYCLES_5;
	sConfig.OffsetNumber = ADC_OFFSET_NONE;
	sConfig.Offset = 0;
	if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK) {
		Error_Handler();
	}
}

static void MX_ADC2_Init(void) {

	ADC_ChannelConfTypeDef sConfig = { 0 };

	hadc2.Instance = ADC2;
	hadc2.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV1;
	hadc2.Init.Resolution = ADC_RESOLUTION_12B;
	hadc2.Init.ScanConvMode = ADC_SCAN_DISABLE;
	hadc2.Init.ContinuousConvMode = ENABLE;
	hadc2.Init.DiscontinuousConvMode = DISABLE;
	hadc2.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_RISING;
	hadc2.Init.ExternalTrigConv = ADC_EXTERNALTRIGCONV_T2_TRGO;
	hadc2.Init.DataAlign = ADC_DATAALIGN_RIGHT;
	hadc2.Init.NbrOfConversion = 1;
	hadc2.Init.DMAContinuousRequests = ENABLE;
	hadc2.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
	hadc2.Init.LowPowerAutoWait = DISABLE;
	hadc2.Init.Overrun = ADC_OVR_DATA_OVERWRITTEN;
	if (HAL_ADC_Init(&hadc2) != HAL_OK) {
		Error_Handler();
	}

	/** Configure Regular Channel
	 */
	sConfig.Channel = ADC_CHANNEL_1;
	sConfig.Rank = ADC_REGULAR_RANK_1;
	sConfig.SingleDiff = ADC_SINGLE_ENDED;
	sConfig.SamplingTime = ADC_SAMPLETIME_601CYCLES_5;
	sConfig.OffsetNumber = ADC_OFFSET_NONE;
	sConfig.Offset = 0;
	if (HAL_ADC_ConfigChannel(&hadc2, &sConfig) != HAL_OK) {
		Error_Handler();
	}
}

static void MX_TIM1_Init(void) {

	TIM_ClockConfigTypeDef sClockSourceConfig = { 0 };
	TIM_MasterConfigTypeDef sMasterConfig = { 0 };

	htim1.Instance = TIM1;
	htim1.Init.Prescaler = 0;
	htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
	htim1.Init.Period = 640 - 1;
	htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
	htim1.Init.RepetitionCounter = 0;
	htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
	if (HAL_TIM_Base_Init(&htim1) != HAL_OK) {
		Error_Handler();
	}
	sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
	if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK) {
		Error_Handler();
	}
	sMasterConfig.MasterOutputTrigger = TIM_TRGO_UPDATE;
	//sMasterConfig.MasterOutputTrigger2 = TIM_TRGO2_UPDATE;
	sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
	if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig)
			!= HAL_OK) {
		Error_Handler();
	}
	/* USER CODE BEGIN TIM1_Init 2 */

	/* USER CODE END TIM1_Init 2 */

}

/**
 * @brief TIM2 Initialization Function
 * @param None
 * @retval None
 */
static void MX_TIM2_Init(void) {

	/* USER CODE BEGIN TIM2_Init 0 */

	/* USER CODE END TIM2_Init 0 */

	TIM_ClockConfigTypeDef sClockSourceConfig = { 0 };
	TIM_MasterConfigTypeDef sMasterConfig = { 0 };

	/* USER CODE BEGIN TIM2_Init 1 */

	/* USER CODE END TIM2_Init 1 */
	htim2.Instance = TIM2;
	htim2.Init.Prescaler = 0;
	htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
	htim2.Init.Period = 640 - 1;
	htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
	htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
	if (HAL_TIM_Base_Init(&htim2) != HAL_OK) {
		Error_Handler();
	}
	sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
	if (HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig) != HAL_OK) {
		Error_Handler();
	}
	sMasterConfig.MasterOutputTrigger = TIM_TRGO_UPDATE;
	sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
	if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig)
			!= HAL_OK) {
		Error_Handler();
	}
	/* USER CODE BEGIN TIM2_Init 2 */

	/* USER CODE END TIM2_Init 2 */

}

/**
 * Enable DMA controller clock
 */
static void MX_DMA_Init(void) {

	/* DMA controller clock enable */
	__HAL_RCC_DMA1_CLK_ENABLE();

	/* DMA interrupt init */
	/* DMA1_Channel1_IRQn interrupt configuration */
	HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 0, 0);
	HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn);
	/* DMA1_Channel2_IRQn interrupt configuration */
	HAL_NVIC_SetPriority(DMA1_Channel2_IRQn, 0, 0);
	HAL_NVIC_EnableIRQ(DMA1_Channel2_IRQn);

}

/**
 * @brief GPIO Initialization Function
 * @param None
 * @retval None
 */
static void MX_GPIO_Init(void) {
	/* USER CODE BEGIN MX_GPIO_Init_1 */
	/* USER CODE END MX_GPIO_Init_1 */

	/* GPIO Ports Clock Enable */
	__HAL_RCC_GPIOA_CLK_ENABLE();

	/* USER CODE BEGIN MX_GPIO_Init_2 */
	/* USER CODE END MX_GPIO_Init_2 */
}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
 * @brief  This function is executed in case of error occurrence.
 * @retval None
 */
void Error_Handler(void) {
	/* USER CODE BEGIN Error_Handler_Debug */
	/* User can add his own implementation to report the HAL error return state */
	__disable_irq();
	while (1) {
	}
	/* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */