/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2025 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "adc.h"
#include "crc.h"
#include "dma.h"
#include "fdcan.h"
#include "i2c.h"
#include "rtc.h"
#include "spi.h"
#include "usart.h"
#include "usb.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <stdio.h>
#include "sysdata.h"
#include "wh_counter.h"
#include "ah_counter.h"
#include "eeprom.h"
#include "modbus.h"
#include "chip_temperature.h"
#include "battery_voltage.h"
#include "ads1260.h"
#include "shunt_voltage.h"
#include "fast_current.h"
#include "int_bat_voltage.h"
#include "chip_temperature.h"
#include "shunt_temperature.h"
#include "esr.h"
#include "ads1260.h"
#include "outputs.h"
#include "crc.h"
#include "efficiency.h"
#include "self_discharge.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 ---------------------------------------------------------*/

/* USER CODE BEGIN PV */
modbus_t modbusData __attribute__((section(".RAM1")));

__IO uint16_t adc12Data[SAMPLE_ARRAY_SIZE][2] __attribute__((section(".RAM1")));
__IO uint32_t adc1Data[1] __attribute__((section(".RAM1")));
__IO uint32_t adc2Data[1] __attribute__((section(".RAM1")));
__IO uint32_t adc3Data[3] __attribute__((section(".RAM1")));
__IO uint32_t adc4Data[1] __attribute__((section(".RAM1")));
__IO uint32_t adc5Data[4] __attribute__((section(".RAM1")));
int silentmode =0;
static volatile uint32_t newADC12Data = 0;
static volatile uint32_t newADC3Data = 0;
static volatile uint32_t newADC4Data = 0;
static volatile uint32_t newADC5Data = 0;
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */
bool SetFlashReadProtection(bool state);
uint8_t printprotectionstate(void);
bool SetBootFromFlashAndReadOutProtection(void);
void LoadBackupRegister(void);
void SaveBackupRegister(void);
/* USER CODE END PFP */

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

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{

  /* USER CODE BEGIN 1 */
  uint8_t firstStartCatcher;
  int mode_button_disable_time=0;
  uint32_t oldTime = 0;
  uint32_t newTime = 0;
  uint32_t timeDiff;
  uint8_t sekunde = 0;
  uint8_t sekundeOld = 0;
  uint32_t dummyDate;

  /* 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_ADC1_Init();
  MX_ADC2_Init();
  MX_ADC3_Init();
  MX_ADC4_Init();
  MX_ADC5_Init();
  MX_FDCAN2_Init();
  MX_FDCAN3_Init();
  MX_I2C3_Init();
  MX_I2C4_Init();
  MX_SPI3_Init();
  MX_USART1_UART_Init();
  MX_USART2_UART_Init();
  MX_USB_PCD_Init();
  MX_CRC_Init();
  MX_RTC_Init();
  /* USER CODE BEGIN 2 */
  printf("Test debug io\r\n");
  SYS_DATA_Init();
  WH_COUNTER_Init();
  AH_COUNTER_Init();


  startType_t startType = EEPROM_isFirstStart();

  switch(startType)
  {
	  case FIRST_START_AFTER_ERASE:					EEPROM_fullRestore(&sys_data);		  break;
	  case FIRST_START_AFTER_COMPARTIBLE_UPDATE:	EEPROM_readConfig(&sys_data);		  break;
	  case FIRST_START_AFTER_INCOMPARTIBLE_UPDATE:	EEPROM_factoryRestore(&sys_data, 0);  break;  // Preserving calibration and settings
	  case FIRST_START_ERROR:						EEPROM_fullRestore(&sys_data);		  break;
  }

  if(HAL_GPIO_ReadPin(GPIO_INPUT_BTN_MODE_GPIO_Port, GPIO_INPUT_BTN_MODE_Pin) == GPIO_PIN_RESET)
  {
    HAL_Delay(50);
    if(HAL_GPIO_ReadPin(GPIO_INPUT_BTN_MODE_GPIO_Port, GPIO_INPUT_BTN_MODE_Pin) == GPIO_PIN_RESET)
    {
      printf("factory restore...\n");
      EEPROM_factoryRestore(&sys_data, 1);
    }
  }

    // Modbus Initialisierung
  mbInit(&modbusData, sys_data.s.parameter.baudrate, sys_data.s.parameter.parityMode, sys_data.s.parameter.stopBit, &huart2);

    // STM32G0 Chiptemperatur Kalibrierung
  CHIP_TEMPERATURE_Calibration();

  HAL_ADCEx_Calibration_Start(&hadc1, ADC_DIFFERENTIAL_ENDED);
  HAL_ADCEx_Calibration_Start(&hadc2, ADC_DIFFERENTIAL_ENDED);
  HAL_ADCEx_Calibration_Start(&hadc3, ADC_SINGLE_ENDED);
  HAL_ADCEx_Calibration_Start(&hadc4, ADC_DIFFERENTIAL_ENDED);
  HAL_ADCEx_Calibration_Start(&hadc5, ADC_SINGLE_ENDED);


  //SET_BIT(hadc2.Instance->CFGR, ADC_CFGR_DMAEN); //Enable DMA transfer for ADC slave (ADC12_CCR.MDMA = 0b00 -> MDMA mode disabled)
  //HAL_DMA_Start(hadc2.DMA_Handle,(uint32_t)&hadc2.Instance->DR, (uint32_t)adc2Data,1); //Start ADC slave DMA 
  //SET_BIT(hadc1.Instance->CFGR, ADC_CFGR_DMAEN); //Enable DMA transfer for ADC master (ADC12_CCR.MDMA = 0b00 -> MDMA mode disabled)
  
    //HAL_ADC_Start_DMA(&hadc2, (uint32_t*)adc2Data, 1);
  if (HAL_ADCEx_MultiModeStart_DMA(&hadc1,(uint32_t *)adc12Data,SAMPLE_ARRAY_SIZE))  //Start ADC interleaved mode
  {
     /* Start Error */
     Error_Handler();
  }

  if (HAL_ADC_Start_DMA(&hadc3, (uint32_t *) adc3Data , 3))
  {
     /* Start Error */
     Error_Handler();
  }

  if (HAL_ADC_Start_DMA(&hadc4, (uint32_t *) adc4Data , 1))
  {
     /* Start Error */
     Error_Handler();
  }


  if (HAL_ADC_Start_DMA(&hadc5, (uint32_t *) adc5Data , 4))
  {
     /* Start Error */
     Error_Handler();
  }


  // ADS1260 Initialierung
  ADS1260_init();
  printf("ADS1260 Init\n");
  OUTPUTS_Init();

  //Display Adress with Error LED blinks
  for (int n = 0; n < sys_data.s.parameter.slave_address; n++)
  {
    HAL_GPIO_WritePin(LED_ERROR_GPIO_Port, LED_ERROR_Pin, GPIO_PIN_SET);
    HAL_Delay(350);
    HAL_GPIO_WritePin(LED_ERROR_GPIO_Port, LED_ERROR_Pin, GPIO_PIN_RESET);
    HAL_Delay(350);
  }

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

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

    /* USER CODE BEGIN 3 */
if (newADC12Data == 1)
    {
	  //Mit ADC_DIV2,Sample time 12,5Cycklen, ADC Clock 50Mhz, Oversampling 256
	  //Tconv = 6400 Takte = 0,128ms Pro Konvertierung. Also für 100 messwerte 12,8mS
	  BATTERY_VOLTAGE_Exec( adc12Data[0][1]);
	  FAST_CURRENT_Exec(adc12Data[0][0]); 
	  sys_data.s.values.esrCalcStatus =  ESR_FAST_Exec();
	  newADC12Data = 0;

	}


	if (newADC3Data == 1)
    {
	  SHUNT_TEMPERATURE_Exec(adc3Data[0]);
	}


	if (newADC4Data == 1)
    {
	  SHUNT_VOLTAGE_Exec( adc4Data[0]);
	}


	if (newADC5Data == 1)
    {
	  CHIP_TEMPERATURE_Exec(adc5Data[0]);
	  INT_BAT_VOLTAGE_Exec( adc5Data[1]);
	  sys_data.s.values.ovp_sense =  (adc5Data[2] * VREF * 21 ) / 65536.0;
      sys_data.s.values.lvp_sense =  (adc5Data[3] * VREF * 21 ) / 65536.0;
	}


	if (newCurrentValue == 1)
    {
      ADS1260_ConversionFinished(); 
      ESR_Exec();

      newCurrentValue = 0;

    }

	 // Zeitbasis ms Systick;
    newTime = HAL_GetTick();
    timeDiff = newTime - oldTime;
    oldTime = newTime;

    if ((mode_button_disable_time > 0) && (timeDiff > 0))
    {
      mode_button_disable_time--;
    }

    // Zeitbasis Sekunde ber RTC
    // muss immer sowohl das Zeit- als auch das Datumsregister lesen
    // da beide Shadowregister sind sonst wird die Zeit nicht mehr geupdatet
    sekunde = hrtc.Instance->TR & 0x0000000F;
    dummyDate = hrtc.Instance->DR;



    if (sekundeOld != sekunde)
    {
      sekundeOld = sekunde;

      sys_data.s.values.onTime++;
      // Funktions Led blinken
      if (silentmode == 0)
      {
        HAL_GPIO_TogglePin(LED_FUNCTION_GPIO_Port, LED_FUNCTION_Pin);
		HAL_GPIO_TogglePin(AUX_EN_GPIO_Port, AUX_EN_Pin);
      }


      // Amperestundenzhler
      AH_COUNTER_Exec();

      WH_COUNTER_Exec();

      // LVP
      OUTPUTS_CheckLVP();

      // OVP
      OUTPUTS_CheckOVP();

      SaveBackupRegister();

      sys_data.s.values.selfDischargeStatus = SELF_DISCHARGE_Exec();

      sys_data.s.values.efficiency = EFFICIENCY_Exec();


    }


	if(sys_data.s.parameter.command != 0)
    {
      if  (modbusData.current_query ==  MB_QUERY_NOTHING)
      {
        //printf("CMD = %d\n", sys_data.s.parameter.command);
        switch (sys_data.s.parameter.command )
        {
          case COMMAND_STORE_CONFIG:                          EEPROM_storeConfig(&sys_data,0);											  break;
          case COMMAND_FULL_RESTORE:                          EEPROM_fullRestore(&sys_data);											  break;
          case COMMAND_FACTORY_RESTORE:                       EEPROM_factoryRestore(&sys_data, 1);										  break;
          case COMMAND_RESTORE_LAST_SAVED_VALUES:             EEPROM_readConfig(&sys_data);												  break;
          case COMMAND_STORE_WITH_SERIAL_NUMBER:              EEPROM_storeConfig(&sys_data,1);											  break;	// Seriennummer schreiben
          case COMMAND_RESTART:                               NVIC_SystemReset();														  break;
          case COMMAND_BATTERY_CURRENT_OFFSET_CAL:            ADS_1260_BatteryCurrentOffsetCalibrationStart(&sys_data);					  break;
          case COMMAND_BATTERY_CURRENT_OFFSET_COMMONMODE_CAL: ADS_1260_BatteryCurrentOffsetCommonModeErrorComepensationStart(&sys_data);  break;
          case COMMAND_BATTERY_CURRENT_OFFSET_TEMP_CAL:       ADS_1260_BatteryCurrentOffsetTemperatureErrorComepensationStart();		  break;
          case COMMAND_BATTERY_CURRENT_GAIN_CAL:              ADS_1260_BatteryCurrentGainCalibrationStart(&sys_data);					  break;
          case COMMAND_BATTERY_CURRENT_GAIN_TEMP_SHUNT_CAL:   ADS_1260_BatteryCurrentGainTemperatureCalibrationShuntStart();			  break;
//        case COMMAND_BATTERY_CURRENT_GAIN_TEMP_CHIP_CAL:    ADS_1260_BatteryCurrentGainTemperatureCalibrationChipStart(); break;
          case COMMAND_SET_RDP_LEVEL0:                        SetFlashReadProtection(false);											  break;
          case COMMAND_SET_RDP_LEVEL1:                        SetFlashReadProtection(true);												  break;
          case COMMAND_SET_RDP_LEVEL1_AND_BOOTSEL:            SetBootFromFlashAndReadOutProtection();									  break;
          default:                                            printf("UNKNOWN COMMAND\n");
        }
        sys_data.s.parameter.command = 0;
      }
      else
      {
        //printf("wait with execution till modbus communnikation finished\n");
      }
    }

    if((HAL_GPIO_ReadPin(GPIO_INPUT_BTN_MODE_GPIO_Port, GPIO_INPUT_BTN_MODE_Pin) == GPIO_PIN_RESET) && (mode_button_disable_time == 0))
    {
      HAL_Delay(10);
      //Taste weiterhin gedrckt?
      if(HAL_GPIO_ReadPin(GPIO_INPUT_BTN_MODE_GPIO_Port, GPIO_INPUT_BTN_MODE_Pin) == GPIO_PIN_RESET)
      {
        //Ja, dann Silent Mode umschalten
        mode_button_disable_time=500;
        if (silentmode == 0)
        {
          silentmode = 1;
          HAL_GPIO_WritePin(LED_FUNCTION_GPIO_Port, LED_FUNCTION_Pin,GPIO_PIN_SET);
        }
        else
        {
          silentmode = 0;
        }
       }
    }

	// Modbus Kommunikation

//	printf("data12d1=%d,data12d2=%d,data5=%d\r\n", adc12Data[0], adc12Data[1] , adc5Data[2]);
    if (mbGetFrameComplete(&modbusData) == true)
    {
      if (mbSlaveCheckModbusRtuQuery(&modbusData) == RESPOND_TO_QUERY)
      {
          if (silentmode == 0)
          {
            mbSlaveProcessRtuQuery(&modbusData);
          }
      }
      else
      {
        huart1.RxState = HAL_UART_STATE_BUSY_RX;
      }
    }

  
  }
  /* 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);

  /** Configure LSE Drive Capability
  */
  HAL_PWR_EnableBkUpAccess();
  __HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_LOW);

  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48|RCC_OSCILLATORTYPE_HSE
                              |RCC_OSCILLATORTYPE_LSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.LSEState = RCC_LSE_ON;
  RCC_OscInitStruct.HSI48State = RCC_HSI48_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 = 16;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
  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_3) != HAL_OK)
  {
    Error_Handler();
  }
}

/* USER CODE BEGIN 4 */
void LoadBackupRegister()
{
    if (HAL_RTCEx_BKUPRead(&hrtc, RTC_BKP_DR1) == 0xBEBE)
    {
	  printf("BackupRegisterData available\r\n");
	  sys_data.s.values.dischargeTotalAh = HAL_RTCEx_BKUPRead(&hrtc, RTC_BKP_DR2);
	}


}


void SaveBackupRegister(void)
{
	static uint32_t lastTime;

	
	uint32_t time = sys_data.s.values.onTime;

	// Alle 24 Stunden führen wir ein Speicherbefehl durch um die Counter zu speichern
	if (time != lastTime)
	{
		lastTime = time;
		HAL_PWR_EnableBkUpAccess();
		HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR1, 0xBEBE);

		// Total Energie und Ah Umsatz der Batterie (seit inbetriebnahme)
	    HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR2, sys_data.s.values.dischargeTotalAh);
		HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR3, sys_data.s.values.chargeTotalAh);
		HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR4, sys_data.s.values.dischargeTotalWh);
		HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR5, sys_data.s.values.chargeTotalWh);

		// Betriebszeit
		HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR6, sys_data.s.values.onTime);

		// Erkannte Kapazitäten
		HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR7, sys_data.s.values.detectedCapacity);
		HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR8, sys_data.s.values.detectedEnergy);


		HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR8, sys_data.s.values.mAh_AutoMode);
		HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR8, sys_data.s.values.mWh_AutoMode);
		HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR8, sys_data.s.values.mAhCounter);





	}


}



 void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef* hadc)
 {
    if (hadc->Instance==ADC1)
	{
	  newADC12Data=1;
	}

	if (hadc->Instance==ADC3)
	{
	  newADC3Data=1;
	}


	if (hadc->Instance==ADC4)
	{
	  newADC4Data=1;
	}

	if (hadc->Instance==ADC5)
	{
	  newADC5Data=1;
	}
 }


 
/**

  * @brief  Set flash read protection.

  * @param  [in] state: Flash read protection state, true: enable protection, false: disable protection.

  * @retval true:  Successful operation.

  * @retval false: Operation failed.

  */

bool SetFlashReadProtection(bool state)
{

  FLASH_OBProgramInitTypeDef OptionsBytesStruct = {0};
  HAL_FLASHEx_OBGetConfig(&OptionsBytesStruct);

  if(state == true)
  {
    printf("Start enable readout protection\n");
    if(OptionsBytesStruct.RDPLevel == OB_RDP_LEVEL_0)
    {
      OptionsBytesStruct.OptionType = OPTIONBYTE_RDP;
      OptionsBytesStruct.RDPLevel   = OB_RDP_LEVEL_1;
      if (HAL_FLASH_Unlock() != HAL_OK)
      {
        printf("Flash unlock error\n");
      }
      if (HAL_FLASH_OB_Unlock() != HAL_OK)
      {
        printf("Flash ob unlock error\n");
      }

      printf("...Flash unlock\n");
      if(HAL_FLASHEx_OBProgram(&OptionsBytesStruct) != HAL_OK)
      {
        printf("...Enable lock error\n");
        HAL_FLASH_OB_Lock();
        return false;
      }
      HAL_FLASH_OB_Lock();
      printf("Flash Optionbyte locked\n");
      HAL_FLASH_Lock();
      printf("Flash  locked\n");
      printf("...Enable lock process finished\n");
    }
    else
    {
      printf("...Flash lock already active\n");
    }
  }
  else
  {
    if(OptionsBytesStruct.RDPLevel == OB_RDP_LEVEL_1)
    {
      OptionsBytesStruct.OptionType = OPTIONBYTE_RDP;
      OptionsBytesStruct.RDPLevel   = OB_RDP_LEVEL_0;

      if (HAL_FLASH_Unlock() != HAL_OK)
      {
        printf("Flash unlock error\n");
        return false;
      }
      printf("...Flash unlocked\n");

      if (HAL_FLASH_OB_Unlock() != HAL_OK)
      {
        printf("Flash ob unlock error\n");
        return false;
      }
      printf("...Flash ob unlocked\n");

      if(HAL_FLASHEx_OBProgram(&OptionsBytesStruct) != HAL_OK)
      {
        HAL_FLASH_OB_Lock();
        printf("Flash Optionbyte programm failed\n");
        return false;
      }

      printf("Flash Optionbyte programmed\n");
      HAL_FLASH_OB_Lock();
      printf("Flash Optionbyte locked\n");
      HAL_FLASH_Lock();
      printf("Flash  locked\n");
      printf("...Disable lock process finished\n");

;
    }
  }
  return true;
}

bool SetBootFromFlashAndReadOutProtection(void)
{

  FLASH_OBProgramInitTypeDef OptionsBytesStruct = {0};
  HAL_FLASHEx_OBGetConfig(&OptionsBytesStruct);

  //Konfiguriere RDP fr Readoutprotection and USER OPTION BYTE FR Boot from Flash
  OptionsBytesStruct.OptionType = OPTIONBYTE_USER | OPTIONBYTE_RDP;

  //Set Readout Protection Level 1
  OptionsBytesStruct.OptionType = OPTIONBYTE_USER|OPTIONBYTE_RDP;
  OptionsBytesStruct.RDPLevel   = OB_RDP_LEVEL_1;

  //Selecting Boot from Main Flash Memory
  OptionsBytesStruct.USERType =    OB_USER_nBOOT0 | OB_USER_nSWBOOT0 | OB_USER_nBOOT1 ;
  OptionsBytesStruct.USERConfig  = OB_USER_nBOOT0 | OB_USER_nSWBOOT0;

  if (HAL_FLASH_Unlock() != HAL_OK)
  {
    printf("Flash unlock error\n");
  }
  if (HAL_FLASH_OB_Unlock() != HAL_OK)
  {
    printf("Flash ob unlock error\n");
  }

  printf("...Flash unlock\n");
  if(HAL_FLASHEx_OBProgram(&OptionsBytesStruct) != HAL_OK)
  {
    printf("...Enable lock error\n");
    HAL_FLASH_OB_Lock();
    return false;
  }
  HAL_FLASH_OB_Lock();
  printf("Flash Optionbyte locked\n");
  HAL_FLASH_Lock();
  printf("Flash  locked\n");
  printf("...Enable lock process finished\n");

  return true;
}
uint8_t printprotectionstate(void)
{
  FLASH_OBProgramInitTypeDef OptionsBytesStruct = {0};
  HAL_FLASHEx_OBGetConfig(&OptionsBytesStruct);
  uint8_t result = 0;

  if(OptionsBytesStruct.RDPLevel == OB_RDP_LEVEL_0)
  {
    //OptionsBytesStruct.OptionType = OPTIONBYTE_RDP;
    //OptionsBytesStruct.RDPLevel   = OB_RDP_LEVEL_1;
    printf("PROTECTION: OB_RDP_LEVEL_0\n");
    result = 0;
  }
  else if(OptionsBytesStruct.RDPLevel == OB_RDP_LEVEL_1)
  {
    printf("PROTECTION: OB_RDP_LEVEL_1\n");
    result = 1;
  }
  else if(OptionsBytesStruct.RDPLevel == OB_RDP_LEVEL_2)
  {
    printf("PROTECTION: OB_RDP_LEVEL_2\n");
    result = 2;
  }
  return  result;
}
/* 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 */
