text: /**
    ******************************************************************************
    * @file    stm32l152_eval_glass_lcd.c
    * @author  MCD Application Team
    * @version V4.5.1
    * @date    20-September-2021
    * @brief   This file includes the LCD Glass driver for Pacific Display 
    *          (LCD_PD878, PD878-DP-FH-W-LV-6-RH) Module of STM32L152-EVAL board RevB.
    ******************************************************************************
    * @attention
    *
    * Copyright (c) 2011 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.
    *
    ******************************************************************************
    */
    
  /* Includes ------------------------------------------------------------------*/
  #include "stm32l152_eval_glass_lcd.h"
  
  /** @addtogroup Utilities
    * @{
    */
  
  /** @addtogroup STM32_EVAL
    * @{
    */ 
  
  /** @addtogroup STM32L152_EVAL
    * @{
    */
    
  /** @defgroup STM32L152_EVAL_GLASS_LCD 
    * @brief This file includes the LCD Glass driver for Pacific Display 
    *        (LCD_PD878, PD878-DP-FH-W-LV-6-RH) Module of STM32L152-EVAL board.
    * @{
    */ 
  
  /** @defgroup STM32L152_EVAL_GLASS_LCD_Private_Types
    * @{
    */ 
  /**
    * @}
    */ 
  
  
  /** @defgroup STM32L152_EVAL_GLASS_LCD_Private_Defines
    * @{
    */ 
  /**
    * @}
    */   
  
  
  /** @defgroup STM32L152_EVAL_GLASS_LCD_Private_Macros
    * @{
    */ 
  /**
    * @}
    */ 
  
  
  /** @defgroup STM32L152_EVAL_GLASS_LCD_Private_Variables
    * @{
    */ 
  
  /**
    @verbatim      
  ================================================================================
                                GLASS LCD MAPPING
  ================================================================================
                 A
        --  ----------
      X \/  |\   |I  /|
           F| H  |  J |B
            |  \ | /  |
            --G-- --K--
            |   /| \  |
          E |  L |  N |C
            | /  |M  \|   _
            -----------  | |DP
                D         -
  
  A LCD character coding is based on the following matrix:
  
  
  { X , F , E , D  }
  { I , J , K , N  }
  { A , B , C , DP }
  { H , G , L , M  }
  
  The character A for example is:
  -------------------------------
   { 0 , 1 , 1 , 0 }
   { 0 , 0 , 1 , 0 }
   { 1 , 1 , 1 , 0 }
   { 0 , 1 , 0 , 0 }
  -------------------
  =  4   D   7   0   hex
  
  => 'A' = 0x4D70
  
    @endverbatim
    */
  
  /**
    * @brief LETTERS AND NUMBERS MAPPING DEFINITION
    */
  uint8_t digit[4];     /* Digit LCD RAM buffer */
  __I uint16_t mask[4] = {0xF000, 0x0F00, 0x00F0, 0x000F};
  __I uint8_t shift[4] = {0x0C, 0x08, 0x04, 0x00};
    
  /* Letters and number map of PD_878 LCD */
  __I uint16_t LetterMap[26]=
  {
  /* A       B       C       D       E       F       G       H       I  */
  0x4D70, 0x6469, 0x4111, 0x6449, 0x4911, 0x4910, 0x4171, 0x0D70, 0x6009,
  /* J       K       L       M       N       O       P       Q       R  */
  0x0451, 0x0B12, 0x0111, 0x8750, 0x8552, 0x4551, 0x4D30, 0x4553, 0x4D32,
  /* S       T       U       V       W       X       Y       Z  */
  0x4961, 0x6008, 0x0551, 0x0390, 0x05D2, 0x8282, 0x8208, 0x4281
  };
  
  __I uint16_t NumberMap[10]= 
  {
  /* 0       1       2       3       4       5       6       7       8       9  */
  0x47D1, 0x0640, 0x4C31, 0x4C61, 0x0D60, 0x4961, 0x4971, 0x4440, 0x4D71, 0x4D61
  };
  
  /**
    * @}
    */ 
    
  
  /** @defgroup STM32L152_EVAL_LCD_Private_Function_Prototypes
    * @{
    */ 
  static void Convert(uint8_t* c, Point_Typedef point, Apostrophe_Typedef apostrophe);
  static void delay(__IO uint32_t nCount);
  static void LCD_GPIOConfig(void);
  
  /**
    * @}
    */ 
    
  /** @defgroup STM32L152_EVAL_LCD_Private_Functions
    * @{
    */ 
  
  /**
    * @brief  Configures the LCD GLASS relative GPIO port IOs and LCD peripheral.
    * @param  None 
    * @retval None
    */
  void LCD_GLASS_Init(void)
  {
    LCD_InitTypeDef LCD_InitStructure;
    
    LCD_GPIOConfig(); /*!< Configure the LCD Glass GPIO pins */
  
    /*!< Configure the LCD interface -------------------------------------------*/
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_LCD, ENABLE); /*!< Enable LCD APB1 Clock */
    
    LCD_InitStructure.LCD_Prescaler = LCD_Prescaler_8;
    LCD_InitStructure.LCD_Divider = LCD_Divider_16;
    LCD_InitStructure.LCD_Duty = LCD_Duty_1_4;
    LCD_InitStructure.LCD_Bias = LCD_Bias_1_3;
    LCD_InitStructure.LCD_VoltageSource = LCD_VoltageSource_Internal;
    LCD_Init(&LCD_InitStructure);
  
    /*!< Configure the Pulse On Duration */
    LCD_PulseOnDurationConfig(LCD_PulseOnDuration_2);
    
    /*!< Configure the LCD Contrast (3.51V) */
    LCD_ContrastConfig(LCD_Contrast_Level_7);
  
    /*!< Wait Until the LCD FCR register is synchronized */
    LCD_WaitForSynchro();
    
    /*!< Enable LCD peripheral */
    LCD_Cmd(ENABLE);
    
    /*!< Wait Until the LCD is enabled */
    while(LCD_GetFlagStatus(LCD_FLAG_ENS) == RESET)
    {
    }
    /*!< Wait Until the LCD Booster is ready */  
    while(LCD_GetFlagStatus(LCD_FLAG_RDY) == RESET)
    {
    }    
  }
  
  /**
    * @brief  This function writes a char in the LCD RAM.
    * @param  ch: The character to dispaly.
    * @param  point: A point to add in front of char.
    *          This parameter  can be one of the following values:  
    *              @arg POINT_OFF: No point to add in front of char.
    *              @arg POINT_ON: Add a point in front of char.
    * @param  apostrophe: Flag indicating if a apostrophe has to be add in front 
    *                     of displayed character.
    *          This parameter  can be one of the following values:
    *              @arg APOSTROPHE_OFF: No apostrophe to add in back of char.
    *              @arg APOSTROPHE_ON: Add an apostrophe in back of char.
    * @param  position: Position in the LCD of the caracter to write.
    *                   This parameter can be any value in range [0:7].
    * @retval None
    */
  void LCD_GLASS_DisplayChar(uint8_t* ch, Point_Typedef point, Apostrophe_Typedef apostrophe, uint8_t position)
  {
    /*!< Wait Until the last LCD RAM update finish */
    while(LCD_GetFlagStatus(LCD_FLAG_UDR) != RESET)
    {
    }
    /*!< LCD Write Char */
    LCD_GLASS_WriteChar(ch, point, apostrophe, position);
  
    /*!< Requesy LCD RAM update */
    LCD_UpdateDisplayRequest();  
  }
  
  /**
    * @brief  This function writes a char in the LCD RAM.
    * @param  ptr: Pointer to string to display on the LCD Glass.
    * @retval None
    */
  void LCD_GLASS_DisplayString(uint8_t* ptr)
  {
    uint32_t i = 0x00;
  
    /*!< Wait Until the last LCD RAM update finish */
    while(LCD_GetFlagStatus(LCD_FLAG_UDR) != RESET)
    {
    }
  
    /*!< Send the string character by character on lCD */
    while ((*ptr != 0) & (i < 8))
    {
      /*!< Display one character on LCD */
      LCD_GLASS_WriteChar(ptr, POINT_OFF, APOSTROPHE_OFF, i);
      /*!< Point on the next character */
      ptr++;
      /*!< Increment the character counter */
      i++;
    }
    /*!< Requesy LCD RAM update */
    LCD_UpdateDisplayRequest();
  }
  
  /**
    * @brief  This function writes a char in the LCD RAM.
    * @param  ch: The character to dispaly.
    * @param  point: A point to add in front of char.
    *          This parameter  can be one of the following values:  
    *              @arg POINT_OFF : No point to add in front of char.
    *              @arg POINT_ON : Add a point in front of char.
    * @param  apostrophe: Flag indicating if a apostrophe has to be add in front 
    *                     of displayed character.
    *          This parameter  can be one of the following values:
    *              @arg APOSTROPHE_OFF : No apostrophe to add in back of char.
    *              @arg APOSTROPHE_ON : Add an apostrophe in back of char.
    * @param  position: Position in the LCD of the caracter to write.
    *          This parameter can be any value in range [0:7].
    * @retval None
    */
  void LCD_GLASS_WriteChar(uint8_t* ch, Point_Typedef point, Apostrophe_Typedef apostrophe, uint8_t position)
  {
    uint32_t tmp = 0x00;
      
    Convert(ch, point, apostrophe); /*!< Convert the corresponding character */
  
    switch (position)
    {
      case 7:
        /*!< Clear the corresponding segments (SEG0, SEG1, SEG2, SEG3) */
        LCD->RAM[LCD_RAMRegister_0] &= (uint32_t)(0xFFFFFFF0);
        LCD->RAM[LCD_RAMRegister_2] &= (uint32_t)(0xFFFFFFF0);
        LCD->RAM[LCD_RAMRegister_4] &= (uint32_t)(0xFFFFFFF0);
        LCD->RAM[LCD_RAMRegister_6] &= (uint32_t)(0xFFFFFFF0);
    
        /*!< Write the corresponding segments (SEG0, SEG1, SEG2, SEG3) */
        LCD->RAM[LCD_RAMRegister_0] |= (uint32_t)(digit[0]);
        LCD->RAM[LCD_RAMRegister_2] |= (uint32_t)(digit[1]);
        LCD->RAM[LCD_RAMRegister_4] |= (uint32_t)(digit[2]);
        LCD->RAM[LCD_RAMRegister_6] |= (uint32_t)(digit[3]);
        break;
        
      case 6:
        /*!< Clear the corresponding segments (SEG4, SEG5, SEG6, SEG10) */
        LCD->RAM[LCD_RAMRegister_0] &= (uint32_t)(0xFFFFFB8F);
        LCD->RAM[LCD_RAMRegister_2] &= (uint32_t)(0xFFFFFB8F);
        LCD->RAM[LCD_RAMRegister_4] &= (uint32_t)(0xFFFFFB8F);
        LCD->RAM[LCD_RAMRegister_6] &= (uint32_t)(0xFFFFFB8F);
    
        /*!< Write the corresponding segments (SEG4, SEG5, SEG6, SEG10) */
        tmp = (((digit[0] & 0x8) << 7) | ((digit[0]& 0x7) << 4));
        LCD->RAM[LCD_RAMRegister_0] |= (uint32_t) tmp;
        tmp = (((digit[1] & 0x8) << 7) | ((digit[1]& 0x7) << 4));
        LCD->RAM[LCD_RAMRegister_2] |= (uint32_t) tmp;
        tmp = (((digit[2] & 0x8) << 7) | ((digit[2]& 0x7) << 4));
        LCD->RAM[LCD_RAMRegister_4] |= (uint32_t) tmp;
        tmp = (((digit[3] & 0x8) << 7) | ((digit[3]& 0x7) << 4));
        LCD->RAM[LCD_RAMRegister_6] |= (uint32_t) tmp;
        break;
        
      case 5:
        /*!< Clear the corresponding segments (SEG11, SEG16, SEG18, SEG19) */
        LCD->RAM[LCD_RAMRegister_0] &= (uint32_t)(0xFFF2F7FF);
        LCD->RAM[LCD_RAMRegister_2] &= (uint32_t)(0xFFF2F7FF);
        LCD->RAM[LCD_RAMRegister_4] &= (uint32_t)(0xFFF2F7FF);
        LCD->RAM[LCD_RAMRegister_6] &= (uint32_t)(0xFFF2F7FF);
    
        /*!< Write the corresponding segments (SEG11, SEG16, SEG18, SEG19) */
        tmp = (((digit[0] & 0x1) << 11) | ((digit[0]& 0x2) << 15) | ((digit[0]& 0xC) << 16));
        LCD->RAM[LCD_RAMRegister_0] |= (uint32_t)(tmp);
        tmp = (((digit[1] & 0x1) << 11) | ((digit[1]& 0x2) << 15) | ((digit[1]& 0xC) << 16));
        LCD->RAM[LCD_RAMRegister_2] |= (uint32_t)(tmp);
        tmp = (((digit[2] & 0x1) << 11) | ((digit[2]& 0x2) << 15) | ((digit[2]& 0xC) << 16));
        LCD->RAM[LCD_RAMRegister_4] |= (uint32_t)(tmp);
        tmp = (((digit[3] & 0x1) << 11) | ((digit[3]& 0x2) << 15) | ((digit[3]& 0xC) << 16));
        LCD->RAM[LCD_RAMRegister_6] |= (uint32_t)(tmp);
        break;
        
      case 4:
        /*!< Clear the corresponding segments (SEG20, SEG21, SEG22, SEG23) */
        LCD->RAM[LCD_RAMRegister_0] &= (uint32_t)(0xFF0FFFFF);
        LCD->RAM[LCD_RAMRegister_2] &= (uint32_t)(0xFF0FFFFF);
        LCD->RAM[LCD_RAMRegister_4] &= (uint32_t)(0xFF0FFFFF);
        LCD->RAM[LCD_RAMRegister_6] &= (uint32_t)(0xFF0FFFFF);
    
        /*!< Write the corresponding segments (SEG20, SEG21, SEG22, SEG23) */
        LCD->RAM[LCD_RAMRegister_0] |= (uint32_t)(digit[0] << 20);
        LCD->RAM[LCD_RAMRegister_2] |= (uint32_t)(digit[1] << 20);
        LCD->RAM[LCD_RAMRegister_4] |= (uint32_t)(digit[2] << 20);
        LCD->RAM[LCD_RAMRegister_6] |= (uint32_t)(digit[3] << 20);
        break;
        
      case 3:
        /*!< Clear the corresponding segments (SEG28, SEG29, SEG30, SEG31) */
        LCD->RAM[LCD_RAMRegister_0] &= (uint32_t)(0x0FFFFFFF);
        LCD->RAM[LCD_RAMRegister_2] &= (uint32_t)(0x0FFFFFFF);
        LCD->RAM[LCD_RAMRegister_4] &= (uint32_t)(0x0FFFFFFF);
        LCD->RAM[LCD_RAMRegister_6] &= (uint32_t)(0x0FFFFFFF);
    
        /*!< Write the corresponding segments (SEG28, SEG29, SEG30, SEG31) */
        LCD->RAM[LCD_RAMRegister_0] |= (uint32_t)(digit[0] << 28);
        LCD->RAM[LCD_RAMRegister_2] |= (uint32_t)(digit[1] << 28);
        LCD->RAM[LCD_RAMRegister_4] |= (uint32_t)(digit[2] << 28);
        LCD->RAM[LCD_RAMRegister_6] |= (uint32_t)(digit[3] << 28);
        break;
        
      case 2:
        /*!< Clear the corresponding segments (SEG32, SEG33, SEG34, SEG35) */
        LCD->RAM[LCD_RAMRegister_1] &= (uint32_t)(0xFFFFFFF0);
        LCD->RAM[LCD_RAMRegister_3] &= (uint32_t)(0xFFFFFFF0);
        LCD->RAM[LCD_RAMRegister_5] &= (uint32_t)(0xFFFFFFF0);
        LCD->RAM[LCD_RAMRegister_7] &= (uint32_t)(0xFFFFFFF0);
    
        /*!< Write the corresponding segments (SEG32, SEG33, SEG34, SEG35) */
        LCD->RAM[LCD_RAMRegister_1] |= (uint32_t)(digit[0] << 0);
        LCD->RAM[LCD_RAMRegister_3] |= (uint32_t)(digit[1] << 0);
        LCD->RAM[LCD_RAMRegister_5] |= (uint32_t)(digit[2] << 0);
        LCD->RAM[LCD_RAMRegister_7] |= (uint32_t)(digit[3] << 0);
        break;
        
      case 1:
        /*!< Clear the corresponding segments (SEG36, SEG37, SEG38, SEG39) */
        LCD->RAM[LCD_RAMRegister_1] &= (uint32_t)(0xFFFFFF0F);
        LCD->RAM[LCD_RAMRegister_3] &= (uint32_t)(0xFFFFFF0F);
        LCD->RAM[LCD_RAMRegister_5] &= (uint32_t)(0xFFFFFF0F);
        LCD->RAM[LCD_RAMRegister_7] &= (uint32_t)(0xFFFFFF0F);
  
        /*!< Write the corresponding segments (SEG36, SEG37, SEG38, SEG39) */
        LCD->RAM[LCD_RAMRegister_1] |= (uint32_t)(digit[0] << 4);
        LCD->RAM[LCD_RAMRegister_3] |= (uint32_t)(digit[1] << 4);
        LCD->RAM[LCD_RAMRegister_5] |= (uint32_t)(digit[2] << 4);
        LCD->RAM[LCD_RAMRegister_7] |= (uint32_t)(digit[3] << 4);
        
        break;
        
      case 0:
        /*!< Clear the corresponding segments (SEG40, SEG41, SEG42, SEG43) */
        LCD->RAM[LCD_RAMRegister_1] &= (uint32_t)(0xFFFFF0FF);
        LCD->RAM[LCD_RAMRegister_3] &= (uint32_t)(0xFFFFF0FF);
        LCD->RAM[LCD_RAMRegister_5] &= (uint32_t)(0xFFFFF0FF);
        LCD->RAM[LCD_RAMRegister_7] &= (uint32_t)(0xFFFFF0FF);
    
        /*!< Write the corresponding segments (SEG40, SEG41, SEG42, SEG43) */
        LCD->RAM[LCD_RAMRegister_1] |= (uint32_t)(digit[0] << 8);
        LCD->RAM[LCD_RAMRegister_3] |= (uint32_t)(digit[1] << 8);
        LCD->RAM[LCD_RAMRegister_5] |= (uint32_t)(digit[2] << 8);
        LCD->RAM[LCD_RAMRegister_7] |= (uint32_t)(digit[3] << 8);
        break;
    }
  }
  
  /**
    * @brief  Display a string in scrolling mode
    * @note   The LCD should be cleared before to start the write operation.  
    * @param  ptr: Pointer to string to display on the LCD Glass.
    * @param  nScroll: Specifies how many time the message will be scrolled
    * @param  ScrollSpeed: Speciifes the speed of the scroll.
    *                     Low value gives higher speed. 
    * @retval None
    */
  void LCD_GLASS_ScrollString(uint8_t* ptr, uint16_t nScroll, uint16_t ScrollSpeed)
  {
    uint8_t Repetition = 0;
    uint8_t* ptr1;
    uint8_t str[8] = "";
    ptr1 = ptr;
  
    LCD_GLASS_DisplayString(ptr1);
  
    delay(ScrollSpeed);
  		
    for (Repetition = 0; Repetition < nScroll; Repetition++)
    {
      *(str + 1) = *ptr1;
      *(str + 2) = *(ptr1 + 1);
      *(str + 3) = *(ptr1 + 2);
      *(str + 4) = *(ptr1 + 3);
      *(str + 5) = *(ptr1 + 4);
      *(str + 6) = *(ptr1 + 5);
      *(str + 7) =*(ptr1 + 6);
      *(str) = *(ptr1 + 7);    
      LCD_GLASS_Clear();
      LCD_GLASS_DisplayString(str);
      delay(ScrollSpeed);
  
      *(str + 1) = *(ptr1 + 7);
      *(str + 2) = *ptr1;
      *(str + 3) = *(ptr1 + 1);
      *(str + 4) = *(ptr1 + 2);
      *(str + 5) = *(ptr1 + 3);
      *(str + 6) = *(ptr1 + 4);
      *(str + 7) = *(ptr1 + 5);
      *(str) = *(ptr1 + 6);    
      LCD_GLASS_Clear();
      LCD_GLASS_DisplayString(str);
      delay(ScrollSpeed);
  
      *(str + 1) = *(ptr1 + 6);
      *(str + 2) = *(ptr1 + 7);
      *(str + 3) = *ptr1;
      *(str + 4) = *(ptr1 + 1);
      *(str + 5) = *(ptr1 + 2);
      *(str + 6) = *(ptr1 + 3);
      *(str + 7) = *(ptr1 + 4);    
      *(str) = *(ptr1 + 5);
      LCD_GLASS_Clear();
      LCD_GLASS_DisplayString(str);
      delay(ScrollSpeed);
  
      *(str + 1) = *(ptr1 + 5);
      *(str + 2) = *(ptr1 + 6);
      *(str + 3) = *(ptr1 + 7);
      *(str + 4) = *ptr1;
      *(str + 5) = *(ptr1 + 1);
      *(str + 6) = *(ptr1 + 2);
      *(str + 7) = *(ptr1 + 3);    
      *(str) = *(ptr1 + 4);
      LCD_GLASS_Clear();
      LCD_GLASS_DisplayString(str);
      delay(ScrollSpeed);
  
      *(str + 1) = *(ptr1 + 4);
      *(str + 2) = *(ptr1 + 5);
      *(str + 3) = *(ptr1 + 6);
      *(str + 4) = *(ptr1 + 7);
      *(str + 5) = *ptr1;
      *(str + 6) = *(ptr1 + 1);
      *(str + 7) = *(ptr1 + 2);    
      *(str) = *(ptr1 + 3);
      LCD_GLASS_Clear();
      LCD_GLASS_DisplayString(str);
      delay(ScrollSpeed);
  
      *(str + 1) = *(ptr1 + 3);
      *(str + 2) = *(ptr1 + 4);
      *(str + 3) = *(ptr1 + 5);
      *(str + 4) = *(ptr1 + 6);
      *(str + 5) = *(ptr1 + 7);
      *(str + 6) = *ptr1;
      *(str + 7) = *(ptr1 + 1);    
      *(str) = *(ptr1 + 2);
      LCD_GLASS_Clear();
      LCD_GLASS_DisplayString(str);
      delay(ScrollSpeed);
  
      *(str + 1) = *(ptr1 + 2);
      *(str + 2) = *(ptr1 + 3);
      *(str + 3) = *(ptr1 + 4);
      *(str + 4) = *(ptr1 + 5);
      *(str + 5) = *(ptr1 + 6);
      *(str + 6) = *(ptr1 + 7);
      *(str + 7) = *ptr1;    
      *(str) = *(ptr1 + 1);
      LCD_GLASS_Clear();
      LCD_GLASS_DisplayString(str);
      delay(ScrollSpeed);
      
      *(str + 1) = *(ptr1 + 1);
      *(str + 2) = *(ptr1 + 2);
      *(str + 3) = *(ptr1 + 3);
      *(str + 4) = *(ptr1 + 4);
      *(str + 5) = *(ptr1 + 5);
      *(str + 6) = *(ptr1 + 6);
      *(str + 7) = *(ptr1 + 7);    
      *(str) = *(ptr1);
      LCD_GLASS_Clear();
      LCD_GLASS_DisplayString(str);
      delay(ScrollSpeed);
    }
  }
  
  /**
    * @brief This function Clear a char in the LCD RAM.
    * @param position: Position in the LCD of the caracter to write.
    *                  This parameter can be any value in range [0:7]. 
    * @retval None
    */
  void LCD_GLASS_ClearChar(uint8_t position)
  {
    switch (position)
    {
      case 7:
        /*!< Clear the corresponding segments (SEG0, SEG1, SEG2, SEG3) */
        LCD->RAM[LCD_RAMRegister_0] &= (uint32_t)(0xFFFFFFF0);
        LCD->RAM[LCD_RAMRegister_2] &= (uint32_t)(0xFFFFFFF0);
        LCD->RAM[LCD_RAMRegister_4] &= (uint32_t)(0xFFFFFFF0);
        LCD->RAM[LCD_RAMRegister_6] &= (uint32_t)(0xFFFFFFF0);
        break;
        
      case 6:
        /*!< Clear the corresponding segments (SEG4, SEG5, SEG6, SEG10) */
        LCD->RAM[LCD_RAMRegister_0] &= (uint32_t)(0xFFFFFB8F);
        LCD->RAM[LCD_RAMRegister_2] &= (uint32_t)(0xFFFFFB8F);
        LCD->RAM[LCD_RAMRegister_4] &= (uint32_t)(0xFFFFFB8F);
        LCD->RAM[LCD_RAMRegister_6] &= (uint32_t)(0xFFFFFB8F);
        break;
        
      case 5:
        /*!< Clear the corresponding segments (SEG11, SEG16, SEG18, SEG19) */
        LCD->RAM[LCD_RAMRegister_0] &= (uint32_t)(0xFFF2F7FF);
        LCD->RAM[LCD_RAMRegister_2] &= (uint32_t)(0xFFF2F7FF);
        LCD->RAM[LCD_RAMRegister_4] &= (uint32_t)(0xFFF2F7FF);
        LCD->RAM[LCD_RAMRegister_6] &= (uint32_t)(0xFFF2F7FF);
        break;
        
      case 4:
        /*!< Clear the corresponding segments (SEG20, SEG21, SEG22, SEG23) */
        LCD->RAM[LCD_RAMRegister_0] &= (uint32_t)(0xFF0FFFFF);
        LCD->RAM[LCD_RAMRegister_2] &= (uint32_t)(0xFF0FFFFF);
        LCD->RAM[LCD_RAMRegister_4] &= (uint32_t)(0xFF0FFFFF);
        LCD->RAM[LCD_RAMRegister_6] &= (uint32_t)(0xFF0FFFFF);
        break;
        
      case 3:
        /*!< Clear the corresponding segments (SEG28, SEG29, SEG30, SEG31) */
        LCD->RAM[LCD_RAMRegister_0] &= (uint32_t)(0x0FFFFFFF);
        LCD->RAM[LCD_RAMRegister_2] &= (uint32_t)(0x0FFFFFFF);
        LCD->RAM[LCD_RAMRegister_4] &= (uint32_t)(0x0FFFFFFF);
        LCD->RAM[LCD_RAMRegister_6] &= (uint32_t)(0x0FFFFFFF);
        break;
        
      case 2:
        /*!< Clear the corresponding segments (SEG32, SEG33, SEG34, SEG35) */
        LCD->RAM[LCD_RAMRegister_1] &= (uint32_t)(0xFFFFFFF0);
        LCD->RAM[LCD_RAMRegister_3] &= (uint32_t)(0xFFFFFFF0);
        LCD->RAM[LCD_RAMRegister_5] &= (uint32_t)(0xFFFFFFF0);
        LCD->RAM[LCD_RAMRegister_7] &= (uint32_t)(0xFFFFFFF0);
        break;
        
      case 1:
        /*!< Clear the corresponding segments (SEG36, SEG37, SEG38, SEG39) */
        LCD->RAM[LCD_RAMRegister_1] &= (uint32_t)(0xFFFFFF0F);
        LCD->RAM[LCD_RAMRegister_3] &= (uint32_t)(0xFFFFFF0F);
        LCD->RAM[LCD_RAMRegister_5] &= (uint32_t)(0xFFFFFF0F);
        LCD->RAM[LCD_RAMRegister_7] &= (uint32_t)(0xFFFFFF0F);
        break;
        
      case 0:
        /*!< Clear the corresponding segments (SEG40, SEG41, SEG42, SEG43) */
        LCD->RAM[LCD_RAMRegister_1] &= (uint32_t)(0xFFFFF0FF);
        LCD->RAM[LCD_RAMRegister_3] &= (uint32_t)(0xFFFFF0FF);
        LCD->RAM[LCD_RAMRegister_5] &= (uint32_t)(0xFFFFF0FF);
        LCD->RAM[LCD_RAMRegister_7] &= (uint32_t)(0xFFFFF0FF);
        break;
    }
  }
  
  /**
    * @brief  This function Clear the whole LCD RAM.
    * @param  None 
    * @retval None
    */
  void LCD_GLASS_Clear(void)
  {
    uint32_t counter = 0;
  
    for (counter = 0; counter < 0x0F; counter++)
    {
      LCD->RAM[counter] =  (uint32_t)0x00;
    }
  }
  
  /**
    * @brief  Converts an ascii char to an LCD digit.
    * @param  c: Char to display.
    * @param  point: A point to add in front of char.
    *          This parameter  can be one of the following values:  
    *              @arg POINT_OFF : No point to add in front of char.
    *              @arg POINT_ON : Add a point in front of char.
    * @param  apostrophe: Flag indicating if a apostrophe has to be add in front 
    *                     of displayed character.
    *          This parameter  can be one of the following values:
    *              @arg APOSTROPHE_OFF : No apostrophe to add in back of char.
    *              @arg APOSTROPHE_ON : Add an apostrophe in back of char.
    * @retval None
    */
  static void Convert(uint8_t* c, Point_Typedef point, Apostrophe_Typedef apostrophe)
  {
    uint16_t ch = 0, tmp = 0;
    uint8_t i = 0;
  
    /*!< The character c is a letter in upper case*/
    if ((*c < 0x5B) & (*c > 0x40))
    {
      ch = LetterMap[*c - 0x41];
    }
    
    /*!< The character c is a number*/
    if ((*c < 0x3A) & (*c > 0x2F))
    {
      ch = NumberMap[*c - 0x30];
    }
    
    /*!< The character c is a space character */
    if (*c == 0x20)
    {
      ch =0x00;
    }
    
    /*!< Set the DP seg in the character that can be displayed if the point is on */
    if (point == POINT_ON)
    {
      ch |= 0x0004;
    }
  
    /*!< Set the X seg in the character that can be displayed if the apostrophe is on */
    if (apostrophe == APOSTROPHE_ON)
    {
      ch |= 0x1000;
    }
  
    for (i = 0; i < 4; i++)
    {
      tmp = ch & mask[i];
      digit[i] =(uint8_t)(tmp >> shift[i]);
    }
  }
  
  /**
    * @brief  Configures the LCD Segments and Coms GPIOs.
    * @param  None 
    * @retval None
    */
  static void LCD_GPIOConfig(void)
  {
    GPIO_InitTypeDef GPIO_InitStructure;
    
    /*!< Enable GPIOA, GPIOB, GPIOC, GPIOD and GPIOE AHB Clocks */
    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA | RCC_AHBPeriph_GPIOB | RCC_AHBPeriph_GPIOC
                          | RCC_AHBPeriph_GPIOD | RCC_AHBPeriph_GPIOE, ENABLE);
  
    /*!< Connect PA.08 to LCD COM0 */
    GPIO_PinAFConfig(GPIOA, GPIO_PinSource8, GPIO_AF_LCD);
  
    /*!< Connect PA.09 to LCD COM1 */
    GPIO_PinAFConfig(GPIOA, GPIO_PinSource9, GPIO_AF_LCD);
  
    /*!< Connect PA.10 to LCD COM2 */
    GPIO_PinAFConfig(GPIOA, GPIO_PinSource10, GPIO_AF_LCD);
  
    /*!< Connect PB.09 to LCD COM3 */
    GPIO_PinAFConfig(GPIOB, GPIO_PinSource9, GPIO_AF_LCD);
  
    /*!< Connect PA.01 to LCD SEG0 */
    GPIO_PinAFConfig(GPIOA, GPIO_PinSource1, GPIO_AF_LCD);
  
    /*!< Connect PA.02 to LCD SEG1 */
    GPIO_PinAFConfig(GPIOA, GPIO_PinSource2, GPIO_AF_LCD);
  
    /*!< Connect PA.03 to LCD SEG2 */
    GPIO_PinAFConfig(GPIOA, GPIO_PinSource3, GPIO_AF_LCD);
  
    /*!< Connect PA.06 to LCD SEG3 */
    GPIO_PinAFConfig(GPIOA, GPIO_PinSource6, GPIO_AF_LCD);
  
    /*!< Connect PA.07 to LCD SEG4 */
    GPIO_PinAFConfig(GPIOA, GPIO_PinSource7, GPIO_AF_LCD);
  
    /*!< Connect PB.00 to LCD SEG5 */
    GPIO_PinAFConfig(GPIOB, GPIO_PinSource0, GPIO_AF_LCD);
  
    /*!< Connect PB.01 to LCD SEG6 */
    GPIO_PinAFConfig(GPIOB, GPIO_PinSource1, GPIO_AF_LCD);
  
    /*!< Connect PB.10 to LCD SEG10 */
    GPIO_PinAFConfig(GPIOB, GPIO_PinSource10, GPIO_AF_LCD);
  
    /*!< Connect PB.11 to LCD SEG11 */
    GPIO_PinAFConfig(GPIOB, GPIO_PinSource11, GPIO_AF_LCD);
  
    /*!< Connect PB.08 to LCD SEG16 */
    GPIO_PinAFConfig(GPIOB, GPIO_PinSource8, GPIO_AF_LCD);
  
    /*!< Connect PC.00 to LCD SEG18 */
    GPIO_PinAFConfig(GPIOC, GPIO_PinSource0, GPIO_AF_LCD);
  
    /*!< Connect PC.01 to LCD SEG19 */
    GPIO_PinAFConfig(GPIOC, GPIO_PinSource1, GPIO_AF_LCD);
  
    /*!< Connect PC.02 to LCD SEG20 */
    GPIO_PinAFConfig(GPIOC, GPIO_PinSource2, GPIO_AF_LCD);
  
    /*!< Connect PC.03 to LCD SEG21 */
    GPIO_PinAFConfig(GPIOC, GPIO_PinSource3, GPIO_AF_LCD);
  
    /*!< Connect PC.04 to LCD SEG22 */
    GPIO_PinAFConfig(GPIOC, GPIO_PinSource4, GPIO_AF_LCD);
  
    /*!< Connect PC.05 to LCD SEG23 */
    GPIO_PinAFConfig(GPIOC, GPIO_PinSource5, GPIO_AF_LCD);
  
    /*!< Connect PD.08 to LCD SEG28 */
    GPIO_PinAFConfig(GPIOD, GPIO_PinSource8, GPIO_AF_LCD);
  
    /*!< Connect PD.09 to LCD SEG29 */
    GPIO_PinAFConfig(GPIOD, GPIO_PinSource9, GPIO_AF_LCD);
  
    /*!< Connect PD.10 to LCD SEG30 */
    GPIO_PinAFConfig(GPIOD, GPIO_PinSource10, GPIO_AF_LCD);
  
    /*!< Connect PD.11 to LCD SEG31 */
    GPIO_PinAFConfig(GPIOD, GPIO_PinSource11, GPIO_AF_LCD);
  
    /*!< Connect PD.12 to LCD SEG32 */
    GPIO_PinAFConfig(GPIOD, GPIO_PinSource12, GPIO_AF_LCD);
  
    /*!< Connect PD.13 to LCD SEG33 */
    GPIO_PinAFConfig(GPIOD, GPIO_PinSource13, GPIO_AF_LCD);
  
    /*!< Connect PD.14 to LCD SEG34 */
    GPIO_PinAFConfig(GPIOD, GPIO_PinSource14, GPIO_AF_LCD);
  
    /*!< Connect PD.15 to LCD SEG35 */
    GPIO_PinAFConfig(GPIOD, GPIO_PinSource15, GPIO_AF_LCD);
  
    /*!< Connect PE.00 to LCD SEG36 */
    GPIO_PinAFConfig(GPIOE, GPIO_PinSource0, GPIO_AF_LCD);
  
    /*!< Connect PE.01 to LCD SEG37 */
    GPIO_PinAFConfig(GPIOE, GPIO_PinSource1, GPIO_AF_LCD);
  
    /*!< Connect PE.02 to LCD SEG38 */
    GPIO_PinAFConfig(GPIOE, GPIO_PinSource2, GPIO_AF_LCD);
  
    /*!< Connect PE.03 to LCD SEG39 */
    GPIO_PinAFConfig(GPIOE, GPIO_PinSource3, GPIO_AF_LCD);
  
    /*!< Connect PC.10 to LCD SEG40 */
    GPIO_PinAFConfig(GPIOC, GPIO_PinSource10, GPIO_AF_LCD);
  
    /*!< Connect PC.11 to LCD SEG41 */
    GPIO_PinAFConfig(GPIOC, GPIO_PinSource11, GPIO_AF_LCD);
  
    /*!< Connect PC.12 to LCD SEG42 */
    GPIO_PinAFConfig(GPIOC, GPIO_PinSource12, GPIO_AF_LCD);
  
    /*!< Connect PD.02 to LCD SEG43 */
    GPIO_PinAFConfig(GPIOD, GPIO_PinSource2, GPIO_AF_LCD);
  
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_6 | \
                                  GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_40MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
    GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
    GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
  
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_8 | GPIO_Pin_9 | \
                                  GPIO_Pin_10 | GPIO_Pin_11;
    GPIO_Init(GPIOB, &GPIO_InitStructure);
  
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 | \
                                  GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_10 | GPIO_Pin_11 | \
                                  GPIO_Pin_12;
    GPIO_Init(GPIOC, &GPIO_InitStructure);
  
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | \
                                  GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 | \
                                  GPIO_Pin_15;
    GPIO_Init(GPIOD, &GPIO_InitStructure);
  
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3;
    GPIO_Init(GPIOE, &GPIO_InitStructure);
  }
  
  /**
    * @brief  Inserts a delay time.
    * @param  nCount: specifies the delay time length.
    * @retval None
    */
  static void delay(__IO uint32_t nCount)
  {
    __IO uint32_t index = 0; 
    for(index = (0xFF * nCount); index != 0; index--)
    {
    }    
  }
  
  /**
    * @}
    */ 
  
  
  /**
    * @}
    */ 
  
  /**
    * @}
    */ 
  
  /**
    * @}
    */ 
  
  
  /**
    * @}
    */ 
  
  /**
    * @}
    */   
  
  