/**
  ******************************************************************************
  * @file    main.c
  * @author  MCU Application Team
  * @brief   Main program body
  * @date
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2023 Puya Semiconductor Co.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by Puya 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
  *
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2016 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
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* Private define ------------------------------------------------------------*/
#define OB_GPIO_PIN_MODE OB_SWD_PB6_GPIO_PC0
/* #define OB_GPIO_PIN_MODE OB_SWD_PB6_NRST_PC0 */


/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private user code ---------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
static void APP_FlashOBProgram(void);

/**
  * @brief  Main program.
  * @retval int
  */
int main(void)
{
  /* Reset of all peripherals, Initializes the Systick. */ 
  HAL_Init();                                        
  
  /* Initialize LED */ 
  BSP_LED_Init(LED_GREEN);
  
  /* Initialize Button */
  BSP_PB_Init(BUTTON_KEY,BUTTON_MODE_GPIO);  
  
  /* Wait For Button */
  while(BSP_PB_GetState(BUTTON_KEY) == 1);
   
  if(READ_BIT(FLASH->OPTR, OB_USER_SWD_NRST_MODE)!= OB_GPIO_PIN_MODE )
  {
    /* OPTION Program */
    APP_FlashOBProgram();
  }
  else
  {
    BSP_LED_On(LED_GREEN);
  }

  while(1)
  {
  }
}

/**
  * @brief  Option Program function
  * @param  None
  * @retval None
  */
static void APP_FlashOBProgram(void)
{
  FLASH_OBProgramInitTypeDef OBInitCfg = {0};

  HAL_FLASH_Unlock();        /* Unlock Flash */
  HAL_FLASH_OB_Unlock();     /* Unlock Option */
  
  OBInitCfg.OptionType = OPTIONBYTE_USER;

  OBInitCfg.USERType = OB_USER_BOR_EN | OB_USER_BOR_LEV | OB_USER_IWDG_SW | OB_USER_SWD_NRST_MODE;
  OBInitCfg.USERConfig = OB_BOR_DISABLE | OB_BOR_LEVEL_3p1_3p2 | OB_IWDG_SW | OB_GPIO_PIN_MODE;

  /* Option Program */
  HAL_FLASH_OBProgram(&OBInitCfg);

  HAL_FLASH_Lock();      /* Lock Flash */
  HAL_FLASH_OB_Lock();   /* Lock Option */

  /* Option Launch */
  HAL_FLASH_OB_Launch();
}

/**
  * @brief  This function is executed in case of error occurrence.
  * @param  None
  * @retval None
  */
void APP_ErrorHandler(void)
{
  while (1)
  {
  }
}

#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 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) */

  /* Infinite loop */
  while (1)
  {
  }
}
#endif /* USE_FULL_ASSERT */

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