/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 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"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "stm32h7xx_hal.h"
//#include "stm32h743i_eval.h"
#include "stdio.h"

typedef enum
{
    FAILED = 0,
    PASSED = !FAILED
} TestStatus;



#define BUFFER_SIZE         ((uint32_t)0x1000)
#define NOR_BANK_ADDR       ((uint32_t)0x60000000)
#define ERASE_TIMEOUT       0x00A00000U  // Example value
#define PROGRAM_TIMEOUT     0x00004400U  // Example value
#define CHIPERASE_TIMEOUT   ((uint32_t)0x30000000)
#define WRITE_READ_ADDR     ((uint32_t)0x0000)
void Error_Handler(void);

static void CPU_CACHE_Enable(void);
static void MPU_Config(void);
static void Fill_Buffer(uint16_t *pBuffer, uint32_t uwBufferLenght, uint16_t uwOffset);
static TestStatus Buffercmp(uint16_t *pBuffer1, uint16_t *pBuffer2, uint16_t BufferLength);
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
void Fill_Buffer(uint16_t *pBuffer, uint32_t uwBufferLenght, uint16_t uwOffset)
 {
   uint16_t tmpIndex = 0;

   /* Put in global buffer different values */
   for (tmpIndex = 0; tmpIndex < uwBufferLenght; tmpIndex++ )
   {
     pBuffer[tmpIndex] = tmpIndex + uwOffset;
   }
 }

 /**
   * @brief  Compares two buffers.
   *   pBuffer1, pBuffer2: buffers to be compared.
   *   BufferLength: buffer's length
   * @retval PASSED: pBuffer identical to pBuffer1
   *         FAILED: pBuffer differs from pBuffer1
   */
 static TestStatus Buffercmp(uint16_t* pBuffer1, uint16_t* pBuffer2, uint16_t BufferLength)
 {
   while (BufferLength--)
   {
     if (*pBuffer1 != *pBuffer2)
     {
       return FAILED;
     }

     pBuffer1++;
     pBuffer2++;
   }

   return PASSED;
 }

static void CPU_CACHE_Enable(void)
{
  SCB_EnableICache();
  SCB_EnableDCache();
}
NOR_HandleTypeDef hnor1;
NOR_IDTypeDef NOR_Id;
 uint16_t aTxBuffer[BUFFER_SIZE];
uint16_t aRxBuffer[BUFFER_SIZE];
__IO uint32_t uwWriteReadStatus = 0;
uint32_t uwIndex = 0;

/* 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 ---------------------------------------------------------*/

NOR_HandleTypeDef hnor1;

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_FMC_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 */
  CPU_CACHE_Enable();
  MPU_Config();
  /* 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_FMC_Init();

  /* USER CODE BEGIN 2 */
  HAL_NOR_Read_ID(&hnor1, &NOR_Id);
      // Step 1: Erase the NOR flash
      Fill_Buffer(aTxBuffer, BUFFER_SIZE, 0xD20F);

           /* Erase block */
           HAL_NOR_Erase_Block(&hnor1, WRITE_READ_ADDR, NOR_BANK_ADDR);

           /* Wait until NOR is ready */
           if(HAL_NOR_GetStatus(&hnor1, NOR_BANK_ADDR, ERASE_TIMEOUT) != HAL_NOR_STATUS_SUCCESS)
           {
             return HAL_NOR_STATUS_ERROR;
           }

           /* Write data to the NOR memory */
           for (uwIndex = 0; uwIndex < BUFFER_SIZE; uwIndex++)
           {
             /* Write data to NOR */
             HAL_NOR_Program(&hnor1, (uint32_t *)(NOR_BANK_ADDR + WRITE_READ_ADDR + 2*uwIndex), &aTxBuffer[uwIndex]);

             /* Read NOR device status */
             if(HAL_NOR_GetStatus(&hnor1, NOR_BANK_ADDR, PROGRAM_TIMEOUT) != HAL_NOR_STATUS_SUCCESS)
             {
               return HAL_NOR_STATUS_ERROR;
             }
           }

           /* Read back data from the NOR memory */
           if(HAL_NOR_ReadBuffer(&hnor1, NOR_BANK_ADDR + WRITE_READ_ADDR, &aRxBuffer[0], BUFFER_SIZE) != HAL_OK)
           {
             return HAL_ERROR;
           }

           /*##-3- Checking data integrity ############################################*/
           uwWriteReadStatus = Buffercmp(aTxBuffer, aRxBuffer, BUFFER_SIZE);

           if (uwWriteReadStatus != PASSED)
           {
             /* Set LED */
             while(1)
             {
               HAL_GPIO_WritePin(GPIOI, GPIO_PIN_8, GPIO_PIN_SET);
             }
           }
           else
           {
             /* OK */
           	/* Toggle LED */
           	while(1)
           	{
           		HAL_GPIO_TogglePin(GPIOI, GPIO_PIN_8);
           		HAL_Delay(500);
           	}
           }

   /* USER CODE END 2 */


 /* USER CODE BEGIN 4 */

 /* USER CODE END 4 */
  // If we reach here, all operations are successful
  while (1)
  {
  }

  /* USER CODE END 2 */
}

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

  /** Supply configuration update enable
  */
  HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY);

  /** Configure the main internal regulator output voltage
  */
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);

  while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {}

  /** 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_DIV1;
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
  RCC_OscInitStruct.PLL.PLLM = 4;
  RCC_OscInitStruct.PLL.PLLN = 50;
  RCC_OscInitStruct.PLL.PLLP = 2;
  RCC_OscInitStruct.PLL.PLLQ = 2;
  RCC_OscInitStruct.PLL.PLLR = 2;
  RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_3;
  RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE;
  RCC_OscInitStruct.PLL.PLLFRACN = 0;
  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_CLOCKTYPE_D3PCLK1|RCC_CLOCKTYPE_D1PCLK1;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV2;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV2;
  RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV2;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
    Error_Handler();
  }
}

/* FMC initialization function */
static void MX_FMC_Init(void)
{
  FMC_NORSRAM_TimingTypeDef Timing = {0};

  /** Perform the NOR1 memory initialization sequence
  */
  hnor1.Instance = FMC_NORSRAM_DEVICE;
  hnor1.Extended = FMC_NORSRAM_EXTENDED_DEVICE;
  /* hnor1.Init */
  hnor1.Init.NSBank = FMC_NORSRAM_BANK1;
  hnor1.Init.DataAddressMux = FMC_DATA_ADDRESS_MUX_DISABLE;
  hnor1.Init.MemoryType = FMC_MEMORY_TYPE_NOR;
  hnor1.Init.MemoryDataWidth = FMC_NORSRAM_MEM_BUS_WIDTH_16;
  hnor1.Init.BurstAccessMode = FMC_BURST_ACCESS_MODE_DISABLE;
  hnor1.Init.WaitSignalPolarity = FMC_WAIT_SIGNAL_POLARITY_LOW;
  hnor1.Init.WaitSignalActive = FMC_WAIT_TIMING_BEFORE_WS;
  hnor1.Init.WriteOperation = FMC_WRITE_OPERATION_ENABLE;
  hnor1.Init.WaitSignal = FMC_WAIT_SIGNAL_DISABLE;
  hnor1.Init.ExtendedMode = FMC_EXTENDED_MODE_DISABLE;
  hnor1.Init.AsynchronousWait = FMC_ASYNCHRONOUS_WAIT_ENABLE;
  hnor1.Init.WriteBurst = FMC_WRITE_BURST_DISABLE;
  hnor1.Init.ContinuousClock = FMC_CONTINUOUS_CLOCK_SYNC_ONLY;
  hnor1.Init.WriteFifo = FMC_WRITE_FIFO_DISABLE;
  hnor1.Init.PageSize = FMC_PAGE_SIZE_NONE;
  /* Timing */
  Timing.AddressSetupTime = 15;
  Timing.AddressHoldTime = 15;
  Timing.DataSetupTime = 255;
  Timing.BusTurnAroundDuration = 15;
  Timing.CLKDivision = 16;
  Timing.DataLatency = 17;
  Timing.AccessMode = FMC_ACCESS_MODE_A;

  if (HAL_NOR_Init(&hnor1, &Timing, NULL) != HAL_OK)
  {
    Error_Handler( );
  }
}

/**
  * @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_GPIOD_CLK_ENABLE();
  __HAL_RCC_GPIOE_CLK_ENABLE();
  __HAL_RCC_GPIOI_CLK_ENABLE();
  __HAL_RCC_GPIOF_CLK_ENABLE();
  __HAL_RCC_GPIOG_CLK_ENABLE();
  __HAL_RCC_GPIOH_CLK_ENABLE();

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(led_test_GPIO_Port, led_test_Pin, GPIO_PIN_RESET);

  /*Configure GPIO pin : led_test_Pin */
  GPIO_InitStruct.Pin = led_test_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(led_test_GPIO_Port, &GPIO_InitStruct);
}

/* USER CODE BEGIN 4 */




/* MPU Configuration */
static void MPU_Config(void)
{
  MPU_Region_InitTypeDef MPU_InitStruct;

  HAL_MPU_Disable();

  MPU_InitStruct.Enable = MPU_REGION_ENABLE;
  MPU_InitStruct.BaseAddress = NOR_BANK_ADDR;
  MPU_InitStruct.Size = MPU_REGION_SIZE_16MB;
  MPU_InitStruct.AccessPermission = MPU_REGION_FULL_ACCESS;
  MPU_InitStruct.IsBufferable = MPU_ACCESS_BUFFERABLE;
  MPU_InitStruct.IsCacheable = MPU_ACCESS_NOT_CACHEABLE;
  MPU_InitStruct.IsShareable = MPU_ACCESS_SHAREABLE;
  MPU_InitStruct.Number = MPU_REGION_NUMBER0;
  MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL0;
  MPU_InitStruct.SubRegionDisable = 0x00;
  MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_ENABLE;

  HAL_MPU_ConfigRegion(&MPU_InitStruct);

  HAL_MPU_Enable(MPU_PRIVILEGED_DEFAULT);
}

/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  __disable_irq();
  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) */
}
#endif /* USE_FULL_ASSERT */