/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <stdio.h>
#include "bassofono.h"
#include "interface.h"
#include "si5351.h"

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/
ADC_HandleTypeDef hadc1;
DMA_HandleTypeDef hdma_adc1;

CORDIC_HandleTypeDef hcordic;

DAC_HandleTypeDef hdac1;
DMA_HandleTypeDef hdma_dac1_ch1;
DMA_HandleTypeDef hdma_dac1_ch2;

I2C_HandleTypeDef hi2c1;

OPAMP_HandleTypeDef hopamp1;

TIM_HandleTypeDef htim6;
TIM_HandleTypeDef htim7;
TIM_HandleTypeDef htim8;

UART_HandleTypeDef huart1;
DMA_HandleTypeDef hdma_usart1_tx;

/* USER CODE BEGIN PV */

volatile uint8_t tick;
uint16_t tick_timer;

// RX
volatile uint8_t rx_adc_buffer_ready, half_rx_dac_buffer_empty;

// TX
// volatile uint8_t half_tx_dac_buffer_empty, tx_dac_buffer_toggle;

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_DMA_Init(void);
static void MX_DAC1_Init(void);
static void MX_ADC1_Init(void);
static void MX_TIM7_Init(void);
static void MX_TIM6_Init(void);
static void MX_CORDIC_Init(void);
static void MX_USART1_UART_Init(void);
static void MX_TIM8_Init(void);
static void MX_OPAMP1_Init(void);
static void MX_I2C1_Init(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */

// IRQ

// EXTI Line9 External Interrupt ISR Handler CallBackFun
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin){
    if(GPIO_Pin == GPIO_PIN_11){
/*
	if(HAL_GPIO_ReadPin(PTT_GPIO_Port, PTT_Pin)){
		enqueue_cmd(BT1P);
	} else {
		enqueue_cmd(BT1R);
	}
   */
    }
}

// ADC

void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef* hadc){
	if(hadc->Instance == ADC1){
		rx_adc_buffer_ready = 1;
	}
}

void HAL_ADC_LevelOutOfWindowCallback(ADC_HandleTypeDef* hadc){
        if(hadc->Instance == ADC1){
                peak = 1;
        }
}

// DAC
// rx
void HAL_DAC_ConvHalfCpltCallbackCh1(DAC_HandleTypeDef* hdac) {
	lf_buffer_toggle = 0;
	half_rx_dac_buffer_empty = 1;
}

void HAL_DAC_ConvCpltCallbackCh1(DAC_HandleTypeDef* hdac) {
	lf_buffer_toggle = 1;
	half_rx_dac_buffer_empty = 1;
}

// tx
void HAL_DACEx_ConvHalfCpltCallbackCh2(DAC_HandleTypeDef* hdac) {
//	HAL_GPIO_TogglePin(OUT_GPIO_Port, OUT_Pin);
        tx_dac_buffer_toggle = 0;
        half_tx_dac_buffer_empty = 1;
}

void HAL_DACEx_ConvCpltCallbackCh2(DAC_HandleTypeDef* hdac) {
//	HAL_GPIO_TogglePin(OUT_GPIO_Port, OUT_Pin);
        tx_dac_buffer_toggle = 1;
        half_tx_dac_buffer_empty = 1;
}

/*
void HAL_DAC_ConvHalfCpltCallbackCh2(DAC_HandleTypeDef* hdac) {
	tx_dac_buffer_toggle = 0;
	half_tx_dac_buffer_empty = 1;
}

void HAL_DAC_ConvCpltCallbackCh2(DAC_HandleTypeDef* hdac) {
	tx_dac_buffer_toggle = 1;
	half_tx_dac_buffer_empty = 1;
}
*/

// TIMERZ
// 10 ms
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim){
    if (htim->Instance == TIM7){
		tick = 1;
    }
}

// uart
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart){
	if (huart == &huart1){
		enqueue_cmd(uart_rx_buf[0]);
		HAL_UART_Receive_IT(&huart1, uart_rx_buf, 1);
	}
/*
	if (huart == &huart2){
		enqueue_cmd(uart_rx_buf[0]);
		HAL_UART_Receive_IT(&huart2, uart_rx_buf, 1);
	}
	*/
}

// non-DMA
int __io_putchar(int ch){
        uint8_t c[1];
        c[0] = ch & 0x00FF;
        HAL_UART_Transmit(&huart1, &*c, 1, 10);
//        HAL_UART_Transmit(&huart2, &*c, 1, 10);
        return ch;
}

int _write(int file,char *ptr, int len){
	HAL_UART_Transmit_DMA(&huart1, ptr, len);
//	HAL_UART_Transmit_DMA(&huart2, ptr, len);
/*        int DataIdx;
        for(DataIdx= 0; DataIdx< len; DataIdx++) {
                __io_putchar(*ptr++);
        }*/
        return len;
}

int display_write(char *ptr, int len){
	HAL_UART_Transmit_DMA(&huart1, ptr, len);
//	HAL_UART_Transmit_DMA(&huart2, ptr, len);
	return len;
}

void start_transmit(void){
        transmit = 1;
        // ADC
//        HAL_ADC_Start_DMA(&hadc1, (uint32_t*)adc_buffer, ADC_BUFFER_SIZE);

	if(TX_TYPE == TX_TYPE_DAC){
	        // DAC
        	HAL_TIM_Base_Start(&htim8);
	        HAL_DAC_Start(&hdac1,DAC_CHANNEL_2);
	        HAL_DAC_Start_DMA(&hdac1, DAC_CHANNEL_2, tx_dac_buffer, (TX_DAC_BUFFER_SIZE * 2), DAC_ALIGN_12B_R);
	} else if(TX_TYPE == TX_TYPE_PWM){
//		HAL_TIM_PWM_Start(&htim4, TIM_CHANNEL_3);
//		HAL_TIM_Base_Start(&htim4);
	} else if(TX_TYPE == TX_TYPE_SI5351){
		si5351_on();
	}
}

void stop_transmit(void){
        transmit = 0;
        // ADC
        // HAL_ADC_Stop_DMA(&hadc1);
	if(TX_TYPE == TX_TYPE_DAC){
        	// DAC
	        HAL_TIM_Base_Stop(&htim8);
	        HAL_DAC_Stop(&hdac1,DAC_CHANNEL_2);
	        HAL_DAC_Stop_DMA(&hdac1, DAC_CHANNEL_2);
	} else if(TX_TYPE == TX_TYPE_PWM){
//		HAL_TIM_PWM_Stop(&htim4, TIM_CHANNEL_3);
//	        HAL_TIM_Base_Stop(&htim4);
        } else if(TX_TYPE == TX_TYPE_SI5351){
                si5351_off();
        }
}

void start_receive(void){
        receive = 1;
        // ADC
        HAL_ADC_Start_DMA(&hadc1, (uint32_t*)adc_buffer, ADC_BUFFER_SIZE);

        // DAC
        HAL_TIM_Base_Start(&htim6);
        HAL_DAC_Start(&hdac1,DAC_CHANNEL_1);
        HAL_DAC_Start_DMA(&hdac1, DAC_CHANNEL_1, lf_buffer, (LF_BUFFER_SIZE * 2), DAC_ALIGN_12B_R);
}

void stop_receive(void){
        receive = 0;
        // ADC
        HAL_ADC_Stop_DMA(&hadc1);

        // DAC
        HAL_TIM_Base_Stop(&htim6);
        HAL_DAC_Stop(&hdac1,DAC_CHANNEL_1);
        HAL_DAC_Stop_DMA(&hdac1, DAC_CHANNEL_1);
}

void set_gain(void){
	HAL_OPAMP_Stop(&hopamp1);
        switch (gain){
                case 1:
                hopamp1.Init.PgaGain = OPAMP_PGA_GAIN_2_OR_MINUS_1;
                break;
                case 2:
                hopamp1.Init.PgaGain = OPAMP_PGA_GAIN_4_OR_MINUS_3;
                break;
                case 3:
                hopamp1.Init.PgaGain = OPAMP_PGA_GAIN_8_OR_MINUS_7;
                break;
                case 4:
                hopamp1.Init.PgaGain = OPAMP_PGA_GAIN_16_OR_MINUS_15;
                break;
                case 5:
                hopamp1.Init.PgaGain = OPAMP_PGA_GAIN_32_OR_MINUS_31;
                break;
                case 6:
                hopamp1.Init.PgaGain = OPAMP_PGA_GAIN_64_OR_MINUS_63;
                break;
                default:
                hopamp1.Init.PgaGain = OPAMP_PGA_GAIN_2_OR_MINUS_1;
                break;
        }
        	HAL_OPAMP_Init(&hopamp1);
        	HAL_OPAMP_Start(&hopamp1);

}


/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */
  	state_changed = 0;
  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_DMA_Init();
  MX_DAC1_Init();
  MX_ADC1_Init();
  MX_TIM7_Init();
  MX_TIM6_Init();
  MX_CORDIC_Init();
  MX_USART1_UART_Init();
  MX_TIM8_Init();
  MX_OPAMP1_Init();
  MX_I2C1_Init();
  /* USER CODE BEGIN 2 */

	HAL_Delay(10);

	display_init();
	state_set_default();
	interface_set_default();

	// inutili
	display_update_item();
//	display_update_state();

	st2_filter_init();
	audio_filter_init();
//	diag();
	HAL_OPAMP_Start(&hopamp1);
	set_gain();
	HAL_TIM_Base_Start_IT(&htim7);
	HAL_UART_Receive_IT(&huart1, uart_rx_buf, 1);
//	HAL_UART_Receive_IT(&huart2, uart_rx_buf, 1);

        if(TX_TYPE == TX_TYPE_SI5351){
		// rooto!
		si53531_initialize();
        }
        

	start_receive();
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1){
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
     HAL_GPIO_TogglePin(OUT_GPIO_Port, OUT_Pin);
//    	receive = transmit = 0;
	if(receive){
		if(rx_adc_buffer_ready){
//			HAL_GPIO_WritePin(OUT_GPIO_Port, OUT_Pin, SET);
			rx_mixer(adc_buffer, ADC_BUFFER_SIZE, if_I, if_Q, rx_nco1_increment);
//			HAL_GPIO_WritePin(OUT_GPIO_Port, OUT_Pin, RESET);
			rx_adc_buffer_ready = 0;
		}
		if(half_rx_dac_buffer_empty){
			// HAL_GPIO_WritePin(OUT_GPIO_Port, OUT_Pin, SET);
			if (modulation == MOD_DC) dc_demodulator(if_I, LF_BUFFER_SIZE, prefilter_lf_buffer);
			else if(modulation == MOD_LSB || modulation == MOD_USB) ssb_demodulator(if_I, if_Q, LF_BUFFER_SIZE, prefilter_lf_buffer, NCO2_INCREMENT);
			else if (modulation == MOD_AM) am_demodulator(if_I, if_Q, LF_BUFFER_SIZE, prefilter_lf_buffer);
			arm_fir_q31(&audio_filter_struct, prefilter_lf_buffer, lf_buffer[lf_buffer_toggle], AUDIO_FILTER_BLOCK_SIZE);
//			arm_fir_q31(&audio_filter_struct, prefilter_lf_buffer, lf_buffer_test[lf_buffer_toggle], AUDIO_FILTER_BLOCK_SIZE);
			// HAL_GPIO_WritePin(OUT_GPIO_Port, OUT_Pin, RESET);
			half_rx_dac_buffer_empty = 0;
		}
	}
	if (transmit){
		if(half_tx_dac_buffer_empty){
//			HAL_GPIO_WritePin(OUT_GPIO_Port, OUT_Pin, SET);
			tx_mixer(tx_dac_buffer[tx_dac_buffer_toggle], TX_DAC_BUFFER_SIZE, if_I, if_Q, tx_nco1_increment);
			half_tx_dac_buffer_empty = 0;
//			HAL_GPIO_WritePin(OUT_GPIO_Port, OUT_Pin, RESET);
		}
		if(tx_adc_buffer_ready){
			if (modulation == MOD_DC) dc_modulator(if_I, LF_BUFFER_SIZE, prefilter_lf_buffer);
                        else if(modulation == MOD_LSB || modulation == MOD_USB) ssb_modulator(if_I, if_Q, LF_BUFFER_SIZE, prefilter_lf_buffer, NCO2_INCREMENT);
                        else if (modulation == MOD_AM) am_modulator(if_I, if_Q, LF_BUFFER_SIZE, prefilter_lf_buffer);
		}
	}
	if(tick){
		// consuma coda comandi
		while(rx_cmd_rb_in_idx != rx_cmd_rb_out_idx) dequeue_cmd();

		// applica cambiamenti display
		if(state_changed) display_update_state();
		if(uart_tx_buf_in_idx){
			display_write(uart_tx_buf, uart_tx_buf_in_idx);
			uart_tx_buf_in_idx = 0;
		}

		tick_timer++;
		// eventi lenti
		if(tick_timer % 8 == 0){
			if(receive){
				if(peak){
					if(peakset == 0) click();
					peakset = 50;
					peak = 0;
				}
				if(peakset){
					peakset--;
					if(peakset == 0) click();
				}

				rx_signal = measure_log_abs_mean(if_I, LF_BUFFER_SIZE) * RX_SMETER_SCALE;
				if(rx_signal != s_meter){
					s_meter = rx_signal;
					set_changed(7);
				}
			}
			if(transmit){
				tx_signal = 78;
				if(tx_signal != s_meter){
                                        s_meter = tx_signal;
                                        set_changed(7);
                                }
			}
		}


		tick = 0;
	 }
   }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** Configure the main internal regulator output voltage
  */
  HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1_BOOST);
  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV2;
  RCC_OscInitStruct.PLL.PLLN = 28;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
  RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
  RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
  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_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
  {
    Error_Handler();
  }
  HAL_RCC_MCOConfig(RCC_MCO1, RCC_MCO1SOURCE_HSE, RCC_MCODIV_1);
}

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

  /* USER CODE BEGIN ADC1_Init 0 */

  /* USER CODE END ADC1_Init 0 */

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

  /* USER CODE BEGIN ADC1_Init 1 */

  /* USER CODE END ADC1_Init 1 */
  /** Common config
  */
  hadc1.Instance = ADC1;
  hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV4;
  hadc1.Init.Resolution = ADC_RESOLUTION_12B;
  hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc1.Init.GainCompensation = 0;
  hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE;
  hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
  hadc1.Init.LowPowerAutoWait = DISABLE;
  hadc1.Init.ContinuousConvMode = ENABLE;
  hadc1.Init.NbrOfConversion = 1;
  hadc1.Init.DiscontinuousConvMode = DISABLE;
  hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
  hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
  hadc1.Init.DMAContinuousRequests = ENABLE;
  hadc1.Init.Overrun = ADC_OVR_DATA_PRESERVED;
  hadc1.Init.OversamplingMode = ENABLE;
  hadc1.Init.Oversampling.Ratio = ADC_OVERSAMPLING_RATIO_2;
  hadc1.Init.Oversampling.RightBitShift = ADC_RIGHTBITSHIFT_NONE;
  hadc1.Init.Oversampling.TriggeredMode = ADC_TRIGGEREDMODE_SINGLE_TRIGGER;
  hadc1.Init.Oversampling.OversamplingStopReset = ADC_REGOVERSAMPLING_CONTINUED_MODE;
  if (HAL_ADC_Init(&hadc1) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure the ADC multi-mode
  */
  multimode.Mode = ADC_MODE_INDEPENDENT;
  if (HAL_ADCEx_MultiModeConfigChannel(&hadc1, &multimode) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure Analog WatchDog 1
  */
  AnalogWDGConfig.WatchdogNumber = ADC_ANALOGWATCHDOG_1;
  AnalogWDGConfig.WatchdogMode = ADC_ANALOGWATCHDOG_SINGLE_REG;
  AnalogWDGConfig.Channel = ADC_CHANNEL_VOPAMP1;
  AnalogWDGConfig.ITMode = DISABLE;
  AnalogWDGConfig.HighThreshold = 4090;
  AnalogWDGConfig.LowThreshold = 5;
  AnalogWDGConfig.FilteringConfig = ADC_AWD_FILTERING_2SAMPLES;
  if (HAL_ADC_AnalogWDGConfig(&hadc1, &AnalogWDGConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_VOPAMP1;
  sConfig.Rank = ADC_REGULAR_RANK_1;
  sConfig.SamplingTime = ADC_SAMPLETIME_47CYCLES_5;
  sConfig.SingleDiff = ADC_SINGLE_ENDED;
  sConfig.OffsetNumber = ADC_OFFSET_NONE;
  sConfig.Offset = 0;
  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN ADC1_Init 2 */

  /* USER CODE END ADC1_Init 2 */

}

/**
  * @brief CORDIC Initialization Function
  * @param None
  * @retval None
  */
static void MX_CORDIC_Init(void)
{

  /* USER CODE BEGIN CORDIC_Init 0 */
//	CORDIC_HandleTypeDef hcordic = {0};
	CORDIC_ConfigTypeDef sConfig = {0};
        sConfig.Function = CORDIC_FUNCTION_SINE;
        sConfig.Precision = CORDIC_PRECISION_4CYCLES;
        sConfig.Scale = CORDIC_SCALE_0;
        sConfig.NbWrite = CORDIC_NBWRITE_1;
        sConfig.NbRead = CORDIC_NBREAD_1;
        sConfig.InSize = CORDIC_INSIZE_32BITS;
        sConfig.OutSize = CORDIC_OUTSIZE_16BITS;
  /* USER CODE END CORDIC_Init 0 */

  /* USER CODE BEGIN CORDIC_Init 1 */
  /* USER CODE END CORDIC_Init 1 */
  hcordic.Instance = CORDIC;
  if (HAL_CORDIC_Init(&hcordic) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN CORDIC_Init 2 */
	HAL_CORDIC_Configure(&hcordic, &sConfig);
  /* USER CODE END CORDIC_Init 2 */

}

/**
  * @brief DAC1 Initialization Function
  * @param None
  * @retval None
  */
static void MX_DAC1_Init(void)
{

  /* USER CODE BEGIN DAC1_Init 0 */

  /* USER CODE END DAC1_Init 0 */

  DAC_ChannelConfTypeDef sConfig = {0};

  /* USER CODE BEGIN DAC1_Init 1 */

  /* USER CODE END DAC1_Init 1 */
  /** DAC Initialization
  */
  hdac1.Instance = DAC1;
  if (HAL_DAC_Init(&hdac1) != HAL_OK)
  {
    Error_Handler();
  }
  /** DAC channel OUT1 config
  */
  sConfig.DAC_HighFrequency = DAC_HIGH_FREQUENCY_INTERFACE_MODE_AUTOMATIC;
  sConfig.DAC_DMADoubleDataMode = DISABLE;
  sConfig.DAC_SignedFormat = ENABLE;
  sConfig.DAC_SampleAndHold = DAC_SAMPLEANDHOLD_DISABLE;
  sConfig.DAC_Trigger = DAC_TRIGGER_T6_TRGO;
  sConfig.DAC_Trigger2 = DAC_TRIGGER_NONE;
  sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_ENABLE;
  sConfig.DAC_ConnectOnChipPeripheral = DAC_CHIPCONNECT_EXTERNAL;
  sConfig.DAC_UserTrimming = DAC_TRIMMING_FACTORY;
  if (HAL_DAC_ConfigChannel(&hdac1, &sConfig, DAC_CHANNEL_1) != HAL_OK)
  {
    Error_Handler();
  }
  /** DAC channel OUT2 config
  */
  sConfig.DAC_SignedFormat = DISABLE;
  sConfig.DAC_Trigger = DAC_TRIGGER_NONE;
  if (HAL_DAC_ConfigChannel(&hdac1, &sConfig, DAC_CHANNEL_2) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN DAC1_Init 2 */

  /* USER CODE END DAC1_Init 2 */

}

/**
  * @brief I2C1 Initialization Function
  * @param None
  * @retval None
  */
static void MX_I2C1_Init(void)
{

  /* USER CODE BEGIN I2C1_Init 0 */

  /* USER CODE END I2C1_Init 0 */

  /* USER CODE BEGIN I2C1_Init 1 */

  /* USER CODE END I2C1_Init 1 */
  hi2c1.Instance = I2C1;
  hi2c1.Init.Timing = 0x60505F8C;
  hi2c1.Init.OwnAddress1 = 0;
  hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
  hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
  hi2c1.Init.OwnAddress2 = 0;
  hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
  hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
  hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
  if (HAL_I2C_Init(&hi2c1) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure Analogue filter
  */
  if (HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure Digital filter
  */
  if (HAL_I2CEx_ConfigDigitalFilter(&hi2c1, 0) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN I2C1_Init 2 */

  /* USER CODE END I2C1_Init 2 */

}

/**
  * @brief OPAMP1 Initialization Function
  * @param None
  * @retval None
  */
static void MX_OPAMP1_Init(void)
{

  /* USER CODE BEGIN OPAMP1_Init 0 */

  /* USER CODE END OPAMP1_Init 0 */

  /* USER CODE BEGIN OPAMP1_Init 1 */

  /* USER CODE END OPAMP1_Init 1 */
  hopamp1.Instance = OPAMP1;
  hopamp1.Init.PowerMode = OPAMP_POWERMODE_HIGHSPEED;
  hopamp1.Init.Mode = OPAMP_PGA_MODE;
  hopamp1.Init.NonInvertingInput = OPAMP_NONINVERTINGINPUT_IO0;
  hopamp1.Init.InternalOutput = ENABLE;
  hopamp1.Init.TimerControlledMuxmode = OPAMP_TIMERCONTROLLEDMUXMODE_DISABLE;
  hopamp1.Init.PgaConnect = OPAMP_PGA_CONNECT_INVERTINGINPUT_IO0_BIAS;
  hopamp1.Init.PgaGain = OPAMP_PGA_GAIN_64_OR_MINUS_63;
  hopamp1.Init.UserTrimming = OPAMP_TRIMMING_FACTORY;
  if (HAL_OPAMP_Init(&hopamp1) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN OPAMP1_Init 2 */

  /* USER CODE END OPAMP1_Init 2 */

}

/**
  * @brief TIM6 Initialization Function
  * @param None
  * @retval None
  */
static void MX_TIM6_Init(void)
{

  /* USER CODE BEGIN TIM6_Init 0 */

  /* USER CODE END TIM6_Init 0 */

  TIM_MasterConfigTypeDef sMasterConfig = {0};

  /* USER CODE BEGIN TIM6_Init 1 */

  /* USER CODE END TIM6_Init 1 */
  htim6.Instance = TIM6;
  htim6.Init.Prescaler = 0;
  htim6.Init.CounterMode = TIM_COUNTERMODE_UP;
  htim6.Init.Period = 7679;
  htim6.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
  if (HAL_TIM_Base_Init(&htim6) != HAL_OK)
  {
    Error_Handler();
  }
  sMasterConfig.MasterOutputTrigger = TIM_TRGO_UPDATE;
  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
  if (HAL_TIMEx_MasterConfigSynchronization(&htim6, &sMasterConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN TIM6_Init 2 */

  /* USER CODE END TIM6_Init 2 */

}

/**
  * @brief TIM7 Initialization Function
  * @param None
  * @retval None
  */
static void MX_TIM7_Init(void)
{

  /* USER CODE BEGIN TIM7_Init 0 */

  /* USER CODE END TIM7_Init 0 */

  TIM_MasterConfigTypeDef sMasterConfig = {0};

  /* USER CODE BEGIN TIM7_Init 1 */

  /* USER CODE END TIM7_Init 1 */
  htim7.Instance = TIM7;
  htim7.Init.Prescaler = 1679;
  htim7.Init.CounterMode = TIM_COUNTERMODE_UP;
  htim7.Init.Period = 999;
  htim7.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
  if (HAL_TIM_Base_Init(&htim7) != HAL_OK)
  {
    Error_Handler();
  }
  sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
  if (HAL_TIMEx_MasterConfigSynchronization(&htim7, &sMasterConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN TIM7_Init 2 */

  /* USER CODE END TIM7_Init 2 */

}

/**
  * @brief TIM8 Initialization Function
  * @param None
  * @retval None
  */
static void MX_TIM8_Init(void)
{

  /* USER CODE BEGIN TIM8_Init 0 */

  /* USER CODE END TIM8_Init 0 */

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

  /* USER CODE BEGIN TIM8_Init 1 */

  /* USER CODE END TIM8_Init 1 */
  htim8.Instance = TIM8;
  htim8.Init.Prescaler = 0;
  htim8.Init.CounterMode = TIM_COUNTERMODE_UP;
  htim8.Init.Period = 239;
  htim8.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
  htim8.Init.RepetitionCounter = 0;
  htim8.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
  if (HAL_TIM_Base_Init(&htim8) != HAL_OK)
  {
    Error_Handler();
  }
  sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
  if (HAL_TIM_ConfigClockSource(&htim8, &sClockSourceConfig) != HAL_OK)
  {
    Error_Handler();
  }
  sMasterConfig.MasterOutputTrigger = TIM_TRGO_UPDATE;
  sMasterConfig.MasterOutputTrigger2 = TIM_TRGO2_RESET;
  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
  if (HAL_TIMEx_MasterConfigSynchronization(&htim8, &sMasterConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN TIM8_Init 2 */

  /* USER CODE END TIM8_Init 2 */

}

/**
  * @brief USART1 Initialization Function
  * @param None
  * @retval None
  */
static void MX_USART1_UART_Init(void)
{

  /* USER CODE BEGIN USART1_Init 0 */

  /* USER CODE END USART1_Init 0 */

  /* USER CODE BEGIN USART1_Init 1 */

  /* USER CODE END USART1_Init 1 */
  huart1.Instance = USART1;
  huart1.Init.BaudRate = 115200;
  huart1.Init.WordLength = UART_WORDLENGTH_8B;
  huart1.Init.StopBits = UART_STOPBITS_1;
  huart1.Init.Parity = UART_PARITY_NONE;
  huart1.Init.Mode = UART_MODE_TX_RX;
  huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  huart1.Init.OverSampling = UART_OVERSAMPLING_16;
  huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
  huart1.Init.ClockPrescaler = UART_PRESCALER_DIV1;
  huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
  if (HAL_UART_Init(&huart1) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_UARTEx_SetTxFifoThreshold(&huart1, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_UARTEx_SetRxFifoThreshold(&huart1, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_UARTEx_DisableFifoMode(&huart1) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN USART1_Init 2 */

  /* USER CODE END USART1_Init 2 */

}

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

  /* DMA controller clock enable */
  __HAL_RCC_DMAMUX1_CLK_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);
  /* DMA1_Channel4_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(DMA1_Channel4_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(DMA1_Channel4_IRQn);
  /* DMA1_Channel5_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(DMA1_Channel5_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(DMA1_Channel5_IRQn);

}

/**
  * @brief GPIO Initialization Function
  * @param None
  * @retval None
  */
static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};

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

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(OUT_GPIO_Port, OUT_Pin, GPIO_PIN_RESET);

  /*Configure GPIO pins : NC1_Pin NC2_Pin */
  GPIO_InitStruct.Pin = NC1_Pin|NC2_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
  GPIO_InitStruct.Pull = GPIO_PULLDOWN;
  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /*Configure GPIO pin : PA8 */
  GPIO_InitStruct.Pin = GPIO_PIN_8;
  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  GPIO_InitStruct.Alternate = GPIO_AF0_MCO;
  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /*Configure GPIO pin : OUT_Pin */
  GPIO_InitStruct.Pin = OUT_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_MEDIUM;
  HAL_GPIO_Init(OUT_GPIO_Port, &GPIO_InitStruct);

}

/* 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 */