/**
  ******************************************************************************
  * @file    BSP/Src/nor.c 
  * @author  MCD Application Team
  * @brief   This example code shows how to use the NOR Driver
  ******************************************************************************
  * @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"

/** @addtogroup STM32F1xx_HAL_Examples
  * @{
  */

/** @addtogroup BSP
  * @{
  */ 

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define BUFFER_SIZE         ((uint32_t)0x0100)
#define WRITE_READ_ADDR     ((uint32_t)0x0800)

/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
uint16_t nor_aTxBuffer[BUFFER_SIZE];
uint16_t nor_aRxBuffer[BUFFER_SIZE];
uint8_t ubIDStatus = 0, ubEraseStatus = 0, ubWriteStatus = 0, ubReadStatus = 0, ubInitStatus = 0;

/* Private function prototypes -----------------------------------------------*/
static void     NOR_SetHint(void);
static void     Fill_Buffer(uint16_t *pBuffer, uint32_t uwBufferLenght, uint32_t uwOffset);
static uint8_t  Buffercmp(uint16_t* pBuffer1, uint16_t* pBuffer2, uint16_t BufferLength);

/* Private functions ---------------------------------------------------------*/

/**
  * @brief  NOR Demo
  * @param  None
  * @retval None
  */
void NOR_demo (void)
{ 
  /* NOR IDs structure */
  static NOR_IDTypeDef pNOR_ID;

  NOR_SetHint();

  
  /*##-1- Configure the NOR device ###########################################*/
  /* NOR device configuration */ 
  if(BSP_NOR_Init() != NOR_STATUS_OK)
  {
    ubInitStatus++; 
  }
  
  /*##-2- Read & check the NOR device IDs ####################################*/
  /* Initialize the ID structure */
  pNOR_ID.Manufacturer_Code = (uint16_t)0x00;
  pNOR_ID.Device_Code1 = (uint16_t)0x00;
  pNOR_ID.Device_Code2 = (uint16_t)0x00;
  pNOR_ID.Device_Code3 = (uint16_t)0x00;
  
  /* Read the NOR memory ID */
  BSP_NOR_Read_ID(&pNOR_ID);
  
  /* Test the NOR ID correctness */
  if(pNOR_ID.Manufacturer_Code != (uint16_t)0x0020)
    ubIDStatus++;
  else if(pNOR_ID.Device_Code1 != (uint16_t)0x227E)
    ubIDStatus++;
  else if (pNOR_ID.Device_Code2 != (uint16_t)0x2221)
    ubIDStatus++;
  else if (pNOR_ID.Device_Code3 != (uint16_t)0x2200)
    ubIDStatus++;
    
  /*##-3- Erase NOR memory ###################################################*/ 
  /* Return to read mode */
  BSP_NOR_ReturnToReadMode();
    
  if(BSP_NOR_Erase_Block(WRITE_READ_ADDR) != NOR_STATUS_OK)
  {
    ubEraseStatus++; 
  }
  
  /*##-4- NOR memory read/write access  ######################################*/   
  /* Fill the buffer to write */
  Fill_Buffer(nor_aTxBuffer, BUFFER_SIZE, 0xD20F);   
  
  /* Write data to the NOR memory */
  if(BSP_NOR_WriteData(WRITE_READ_ADDR, nor_aTxBuffer, BUFFER_SIZE) != NOR_STATUS_OK)
  {
    ubWriteStatus++; 
  }
  
  /* Read back data from the NOR memory */
  if(BSP_NOR_ReadData(WRITE_READ_ADDR, nor_aRxBuffer, BUFFER_SIZE) != NOR_STATUS_OK)
  {
    ubReadStatus++; 
  }

  /*##-5- Checking data integrity ############################################*/  
  if(ubInitStatus != 0)
  {
    BSP_LCD_DisplayStringAt(20, 100, (uint8_t*)"NOR Initialization : FAILED.", LEFT_MODE);
    BSP_LCD_DisplayStringAt(20, 115, (uint8_t*)"NOR Test Aborted.", LEFT_MODE);
  }
  else
  {
    BSP_LCD_DisplayStringAt(20, 100, (uint8_t*)"NOR Initialization : OK.", LEFT_MODE);
  }  
  if(ubEraseStatus != 0)
  {
    BSP_LCD_DisplayStringAt(20, 115, (uint8_t*)"NOR ERASE : FAILED.", LEFT_MODE);
    BSP_LCD_DisplayStringAt(20, 130, (uint8_t*)"NOR Test Aborted.", LEFT_MODE);
  }
  else
  {
    BSP_LCD_DisplayStringAt(20, 115, (uint8_t*)"NOR ERASE : OK.   ", LEFT_MODE);
  }
  if(ubWriteStatus != 0)
  {
    BSP_LCD_DisplayStringAt(20, 130, (uint8_t*)"NOR WRITE : FAILED.", LEFT_MODE);
    BSP_LCD_DisplayStringAt(20, 145, (uint8_t*)"NOR Test Aborted.", LEFT_MODE);
  }
  else
  {
    BSP_LCD_DisplayStringAt(20, 130, (uint8_t*)"NOR WRITE : OK.     ", LEFT_MODE);
  }
  if(ubReadStatus != 0)
  {
    BSP_LCD_DisplayStringAt(20, 145, (uint8_t*)"NOR READ : FAILED.", LEFT_MODE);
    BSP_LCD_DisplayStringAt(20, 160, (uint8_t*)"NOR Test Aborted.", LEFT_MODE);
  }
  else
  {
    BSP_LCD_DisplayStringAt(20, 145, (uint8_t*)"NOR READ :  OK.    ", LEFT_MODE);
  }    
  if(Buffercmp(nor_aRxBuffer, nor_aTxBuffer, BUFFER_SIZE) > 0)
  {
    BSP_LCD_DisplayStringAt(20, 160, (uint8_t*)"NOR COMPARE : FAILED.", LEFT_MODE);
    BSP_LCD_DisplayStringAt(20, 175, (uint8_t*)"NOR Test Aborted.", LEFT_MODE);
  }
  else
  {    
    BSP_LCD_DisplayStringAt(20, 160, (uint8_t*)"NOR Test : OK.     ", LEFT_MODE);
  }  
  
  while (1)
  {    
    if(CheckForUserInput() > 0)
    {
      return;
    }
  }
}

/**
  * @brief  Display NOR Demo Hint
  * @param  None
  * @retval None
  */
static void NOR_SetHint(void)
{
  /* Clear the LCD */ 
  BSP_LCD_Clear(LCD_COLOR_WHITE);
  
  /* Set LCD Demo description */
  BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
  BSP_LCD_FillRect(0, 0, BSP_LCD_GetXSize(), 80);
  BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
  BSP_LCD_SetBackColor(LCD_COLOR_BLUE); 
  BSP_LCD_SetFont(&Font24);
  BSP_LCD_DisplayStringAt(0, 0, (uint8_t*)"NOR", CENTER_MODE);
  BSP_LCD_SetFont(&Font12);
  BSP_LCD_DisplayStringAt(0, 30, (uint8_t*)"This example shows how to write", CENTER_MODE);
  BSP_LCD_DisplayStringAt(0, 45, (uint8_t*)"and read data on NOR", CENTER_MODE); 

   /* Set the LCD Text Color */
  BSP_LCD_SetTextColor(LCD_COLOR_BLUE);  
  BSP_LCD_DrawRect(10, 90, BSP_LCD_GetXSize() - 20, BSP_LCD_GetYSize()- 100);
  BSP_LCD_DrawRect(11, 91, BSP_LCD_GetXSize() - 22, BSP_LCD_GetYSize()- 102);
  
  BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
  BSP_LCD_SetBackColor(LCD_COLOR_WHITE); 
}

/**
  * @brief  Fills buffer with user predefined data.
  * @param  pBuffer: pointer on the buffer to fill
  * @param  uwBufferLenght: size of the buffer to fill
  * @param  uwOffset: first value to fill on the buffer
  * @retval None
  */
static void Fill_Buffer(uint16_t *pBuffer, uint32_t uwBufferLenght, uint32_t uwOffset)
{
  uint32_t tmpIndex = 0;

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

/**
  * @brief  Compares two buffers.
  * @param  pBuffer1, pBuffer2: buffers to be compared.
  * @param  BufferLength: buffer's length
  * @retval 1: pBuffer identical to pBuffer1
  *         0: pBuffer differs from pBuffer1
  */
static uint8_t Buffercmp(uint16_t* pBuffer1, uint16_t* pBuffer2, uint16_t BufferLength)
{
  while (BufferLength--)
  {
    if (*pBuffer1 != *pBuffer2)
    {
      return 1;
    }

    pBuffer1++;
    pBuffer2++;
  }

  return 0;
}
/**
  * @}
  */ 

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