/* 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"
#include "cmsis_os.h"
#include "adc.h"
#include "dma.h"
#include "i2c.h"
#include "iwdg.h"
#include "rtc.h"
#include "usart.h"
#include "usb_device.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <stdio.h>
#include "navikit.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 */
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
void MX_FREERTOS_Init(void);
static void MX_NVIC_Init(void);
/* USER CODE BEGIN PFP */

/* 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 */
	ISP_Judge();
  /* USER CODE END 1 */

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

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

  /* USER CODE BEGIN Init */

  NaviKit_var_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_I2C1_Init();
  MX_IWDG_Init();
  MX_UART4_Init();
  MX_ADC1_Init();
  MX_USART1_UART_Init();
  MX_RTC_Init();

  /* Initialize interrupts */
  MX_NVIC_Init();
  /* USER CODE BEGIN 2 */

  /* USER CODE END 2 */

  /* Init scheduler */
  osKernelInitialize();  /* Call init function for freertos objects (in freertos.c) */
  MX_FREERTOS_Init();
  /* Start scheduler */
  osKernelStart();

  /* We should never get here as control is now taken by the scheduler */
  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
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_LSI|RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.LSIState = RCC_LSI_ON;
  RCC_OscInitStruct.Prediv1Source = RCC_PREDIV1_SOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL4;
  RCC_OscInitStruct.PLL2.PLL2State = RCC_PLL_NONE;
  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_DIV2;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
  {
    Error_Handler();
  }
  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_RTC|RCC_PERIPHCLK_ADC
                              |RCC_PERIPHCLK_USB;
  PeriphClkInit.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;
  PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV8;
  PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_PLL_DIV2;
  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
  {
    Error_Handler();
  }
  /** Enables the Clock Security System
  */
  HAL_RCC_EnableCSS();
  /** Configure the Systick interrupt time
  */
  __HAL_RCC_PLLI2S_ENABLE();
}

/**
  * @brief NVIC Configuration.
  * @retval None
  */
static void MX_NVIC_Init(void)
{
  /* PVD_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(PVD_IRQn, 5, 0);
  HAL_NVIC_EnableIRQ(PVD_IRQn);
  /* FLASH_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(FLASH_IRQn, 5, 0);
  HAL_NVIC_EnableIRQ(FLASH_IRQn);
  /* RCC_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(RCC_IRQn, 5, 0);
  HAL_NVIC_EnableIRQ(RCC_IRQn);
  /* OTG_FS_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(OTG_FS_IRQn, 5, 0);
  HAL_NVIC_EnableIRQ(OTG_FS_IRQn);
  /* UART4_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(UART4_IRQn, 5, 0);
  HAL_NVIC_EnableIRQ(UART4_IRQn);
  /* I2C1_EV_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(I2C1_EV_IRQn, 5, 0);
  HAL_NVIC_EnableIRQ(I2C1_EV_IRQn);
  /* I2C1_ER_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(I2C1_ER_IRQn, 5, 0);
  HAL_NVIC_EnableIRQ(I2C1_ER_IRQn);
  /* ADC1_2_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(ADC1_2_IRQn, 5, 0);
  HAL_NVIC_EnableIRQ(ADC1_2_IRQn);
  /* DMA1_Channel1_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 5, 0);
  HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn);
  /* USART1_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(USART1_IRQn, 5, 0);
  HAL_NVIC_EnableIRQ(USART1_IRQn);
}

/* USER CODE BEGIN 4 */
void ISP_Judge()
{//Judge that if need jump to ISP area
	RTC_HandleTypeDef hrtc;
	hrtc.Instance = RTC;
	if(HAL_RTCEx_BKUPRead(&hrtc,RTC_BKP_DR1) == 0x32f2)
  {
    __HAL_RCC_PWR_CLK_ENABLE();
    __HAL_RCC_BKP_CLK_ENABLE();
    __HAL_RCC_RTC_CONFIG(RCC_RTCCLKSOURCE_HSE_DIV128);
    __HAL_RCC_RTC_ENABLE();
    HAL_PWR_EnableBkUpAccess();

    HAL_RTCEx_BKUPWrite(&hrtc,RTC_BKP_DR1,0x0000);

    __HAL_RCC_RTC_DISABLE();
    __HAL_RCC_PWR_CLK_DISABLE();
    __HAL_RCC_BKP_CLK_DISABLE();
    
    HAL_PWR_DisableBkUpAccess();

    typedef  void (*pFunction)(void);
    pFunction Jump_to_ISP;
    Jump_to_ISP = (pFunction) (*(__IO uint32_t*)(ISP_Address + 4));//ISP's program's reset vector (pc pointer initial value)

    __set_MSP(*(__IO uint32_t*) ISP_Address);
    Jump_to_ISP();
    while(1);
  }
}

/* USER CODE END 4 */

/**
  * @brief  Period elapsed callback in non blocking mode
  * @note   This function is called  when TIM1 interrupt took place, inside
  * HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
  * a global variable "uwTick" used as application time base.
  * @param  htim : TIM handle
  * @retval None
  */
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
  /* USER CODE BEGIN Callback 0 */

  /* USER CODE END Callback 0 */
  if (htim->Instance == TIM1) {
    HAL_IncTick();
  }
  /* USER CODE BEGIN Callback 1 */

  /* USER CODE END Callback 1 */
}

/**
  * @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 */

  /* 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,
     tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/