stm3210b_eval_lcd.c

STM32的SPI1与SPI2通信

/**
  ******************************************************************************
  * @file    stm3210b_eval_lcd.c
  * @author  MCD Application Team
  * @version V4.5.0
  * @date    07-March-2011
  * @brief   This file includes the LCD driver for AM-240320LTNQW00H (LCD_HX8312),
  *          AM-240320L8TNQW00H (LCD_ILI9320), AM-240320LDTNQW00H (LCD_SPFD5408B)
  *          Liquid Crystal Display Module of STM3210B-EVAL board.
  ******************************************************************************
  * @attention
  *
  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
  *
  * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
  ******************************************************************************  
  */ 

/* Includes ------------------------------------------------------------------*/
#include "stm3210b_eval_lcd.h"
#include "../Common/fonts.c"

/** @addtogroup Utilities
  * @{
  */

/** @addtogroup STM32_EVAL
  * @{
  */ 

/** @addtogroup STM3210B_EVAL
  * @{
  */
    
/** @defgroup STM3210B_EVAL_LCD 
  * @briefThis file includes the LCD driver for AM-240320LTNQW00H (LCD_HX8312),
  *          AM-240320L8TNQW00H (LCD_ILI9320), AM-240320LDTNQW00H (LCD_SPFD5408B)
  *          Liquid Crystal Display Module of STM3210B-EVAL board.
  * @{
  */ 

/** @defgroup STM3210B_EVAL_LCD_Private_Types
  * @{
  */ 
/**
  * @}
  */ 


/** @defgroup STM3210B_EVAL_LCD_Private_Defines
  * @{
  */ 
#define LCD_ILI9320        0x9320
#define LCD_HX8312         0x8312
#define LCD_SPFD5408       0x5408
#define START_BYTE         0x70
#define SET_INDEX          0x00
#define READ_STATUS        0x01
#define LCD_WRITE_REG      0x02
#define LCD_READ_REG       0x03
#define MAX_POLY_CORNERS   200
#define POLY_Y(Z)          ((int32_t)((Points + Z)->X))
#define POLY_X(Z)          ((int32_t)((Points + Z)->Y))
/**
  * @}
  */ 


/** @defgroup STM3210B_EVAL_LCD_Private_Macros
  * @{
  */
#define ABS(X)  ((X) > 0 ? (X) : -(X))   
/**
  * @}
  */ 


/** @defgroup STM3210B_EVAL_LCD_Private_Variables
  * @{
  */ 
static sFONT *LCD_Currentfonts;
/* Global variables to set the written text color */
static __IO uint16_t TextColor = 0x0000, BackColor = 0xFFFF;
static __IO uint32_t LCDType = LCD_ILI9320;
/**
  * @}
  */ 


/** @defgroup STM3210B_EVAL_LCD_Private_Function_Prototypes
  * @{
  */ 
#ifndef USE_Delay
static void delay(vu32 nCount);
#endif /* USE_Delay*/

static void LCD_WriteRegHX8312(uint8_t LCD_Reg, uint8_t LCD_RegValue);
static void LCD_WriteRegILI9320(uint8_t LCD_Reg, uint16_t LCD_RegValue);
static void PutPixel(int16_t x, int16_t y);
static void LCD_PolyLineRelativeClosed(pPoint Points, uint16_t PointCount, uint16_t Closed);
/**
  * @}
  */ 


/** @defgroup STM3210B_EVAL_LCD_Private_Functions
  * @{
  */ 

/**
  * @brief  DeInitializes the LCD.
  * @param  None
  * @retval None
  */
void LCD_DeInit(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;

  /*!< LCD Display Off */
  LCD_DisplayOff();

  /*!< LCD_SPI disable */
  SPI_Cmd(LCD_SPI, DISABLE);
  
  /*!< LCD_SPI DeInit */
  SPI_I2S_DeInit(LCD_SPI);
   
  /*!< Disable SPI clock  */
  RCC_APB1PeriphClockCmd(LCD_SPI_CLK, DISABLE);
    
  /* Configure NCS in Output Push-Pull mode */
  GPIO_InitStructure.GPIO_Pin = LCD_NCS_PIN;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(LCD_NCS_GPIO_PORT, &GPIO_InitStructure);
  
  /* Configure NWR(RNW), RS in Output Push-Pull mode */
  GPIO_InitStructure.GPIO_Pin = LCD_RS_PIN;
  GPIO_Init(LCD_RS_GPIO_PORT, &GPIO_InitStructure);

  GPIO_InitStructure.GPIO_Pin = LCD_NWR_PIN;
  GPIO_Init(LCD_NWR_GPIO_PORT, &GPIO_InitStructure);
  
  /* Configure SPI pins: SCK, MISO and MOSI */
  GPIO_InitStructure.GPIO_Pin = LCD_SPI_SCK_PIN;
  GPIO_Init(LCD_SPI_SCK_GPIO_PORT, &GPIO_InitStructure);

  GPIO_InitStructure.GPIO_Pin = LCD_SPI_MISO_PIN;
  GPIO_Init(LCD_SPI_MISO_GPIO_PORT, &GPIO_InitStructure);
  
  GPIO_InitStructure.GPIO_Pin = LCD_SPI_MOSI_PIN;
  GPIO_Init(LCD_SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
}

/**
  * @brief  Setups the LCD.
  * @param  None
  * @retval None
  */
void LCD_Setup(void)
{ 
/* Configure the LCD Control pins --------------------------------------------*/
  LCD_CtrlLinesConfig();
  
/* Configure the LCD_SPI interface ----------------------------------------------*/
  LCD_SPIConfig();
  if(LCDType == LCD_ILI9320)
  {
    _delay_(5); /* Delay 50 ms */
    /* Start Initial Sequence ------------------------------------------------*/
    LCD_WriteReg(LCD_REG_229, 0x8000); /* Set the internal vcore voltage */
    LCD_WriteReg(LCD_REG_0,  0x0001); /* Start internal OSC. */
    LCD_WriteReg(LCD_REG_1,  0x0100); /* set SS and SM bit */
    LCD_WriteReg(LCD_REG_2,  0x0700); /* set 1 line inversion */
    LCD_WriteReg(LCD_REG_3,  0x1030); /* set GRAM write direction and BGR=1. */
    LCD_WriteReg(LCD_REG_4,  0x0000); /* Resize register */
    LCD_WriteReg(LCD_REG_8,  0x0202); /* set the back porch and front porch */
    LCD_WriteReg(LCD_REG_9,  0x0000); /* set non-display area refresh cycle ISC[3:0] */
    LCD_WriteReg(LCD_REG_10, 0x0000); /* FMARK function */
    LCD_WriteReg(LCD_REG_12, 0x0000); /* RGB interface setting */
    LCD_WriteReg(LCD_REG_13, 0x0000); /* Frame marker Position */
    LCD_WriteReg(LCD_REG_15, 0x0000); /* RGB interface polarity */
    /* Power On sequence -----------------------------------------------------*/
    LCD_WriteReg(LCD_REG_16, 0x0000); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
    LCD_WriteReg(LCD_REG_17, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
    LCD_WriteReg(LCD_REG_18, 0x0000); /* VREG1OUT voltage */
    LCD_WriteReg(LCD_REG_19, 0x0000); /* VDV[4:0] for VCOM amplitude */
    _delay_(20);               /* Dis-charge capacitor power voltage (200ms) */
    LCD_WriteReg(LCD_REG_16, 0x17B0); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
    LCD_WriteReg(LCD_REG_17, 0x0137); /* DC1[2:0], DC0[2:0], VC[2:0] */
    _delay_(5);                /* Delay 50 ms */
    LCD_WriteReg(LCD_REG_18, 0x0139); /* VREG1OUT voltage */
    _delay_(5);                /* Delay 50 ms */
    LCD_WriteReg(LCD_REG_19, 0x1d00); /* VDV[4:0] for VCOM amplitude */
    LCD_WriteReg(LCD_REG_41, 0x0013); /* VCM[4:0] for VCOMH */
    _delay_(5);                /* Delay 50 ms */
    LCD_WriteReg(LCD_REG_32, 0x0000); /* GRAM horizontal Address */
    LCD_WriteReg(LCD_REG_33, 0x0000); /* GRAM Vertical Address */
    /* Adjust the Gamma Curve ------------------------------------------------*/
    LCD_WriteReg(LCD_REG_48, 0x0006);
    LCD_WriteReg(LCD_REG_49, 0x0101);
    LCD_WriteReg(LCD_REG_50, 0x0003);
    LCD_WriteReg(LCD_REG_53, 0x0106);
    LCD_WriteReg(LCD_REG_54, 0x0b02);
    LCD_WriteReg(LCD_REG_55, 0x0302);
    LCD_WriteReg(LCD_REG_56, 0x0707);
    LCD_WriteReg(LCD_REG_57, 0x0007);
    LCD_WriteReg(LCD_REG_60, 0x0600);
    LCD_WriteReg(LCD_REG_61, 0x020b);
  
    /* Set GRAM area ---------------------------------------------------------*/
    LCD_WriteReg(LCD_REG_80, 0x0000); /* Horizontal GRAM Start Address */
    LCD_WriteReg(LCD_REG_81, 0x00EF); /* Horizontal GRAM End Address */
    LCD_WriteReg(LCD_REG_82, 0x0000); /* Vertical GRAM Start Address */
    LCD_WriteReg(LCD_REG_83, 0x013F); /* Vertical GRAM End Address */
    LCD_WriteReg(LCD_REG_96,  0x2700); /* Gate Scan Line */
    LCD_WriteReg(LCD_REG_97,  0x0001); /* NDL,VLE, REV */
    LCD_WriteReg(LCD_REG_106, 0x0000); /* set scrolling line */
    /* Partial Display Control -----------------------------------------------*/
    LCD_WriteReg(LCD_REG_128, 0x0000);
    LCD_WriteReg(LCD_REG_129, 0x0000);
    LCD_WriteReg(LCD_REG_130, 0x0000);
    LCD_WriteReg(LCD_REG_131, 0x0000);
    LCD_WriteReg(LCD_REG_132, 0x0000);
    LCD_WriteReg(LCD_REG_133, 0x0000);
    /* Panel Control ---------------------------------------------------------*/
    LCD_WriteReg(LCD_REG_144, 0x0010);
    LCD_WriteReg(LCD_REG_146, 0x0000);
    LCD_WriteReg(LCD_REG_147, 0x0003);
    LCD_WriteReg(LCD_REG_149, 0x0110);
    LCD_WriteReg(LCD_REG_151, 0x0000);
    LCD_WriteReg(LCD_REG_152, 0x0000);
    /* Set GRAM write direction and BGR = 1 */
    /* I/D=01 (Horizontal : increment, Vertical : decrement) */
    /* AM=1 (address is updated in vertical writing direction) */
    LCD_WriteReg(LCD_REG_3, 0x1018);
    LCD_WriteReg(LCD_REG_7, 0x0173); /* 262K color and display ON */
  }
  else if(LCDType == LCD_SPFD5408)
  {   
    /* Start Initial Sequence --------------------------------------------------*/
    LCD_WriteReg(LCD_REG_227, 0x3008); /* Set internal timing */
    LCD_WriteReg(LCD_REG_231, 0x0012); /* Set internal timing */
    LCD_WriteReg(LCD_REG_239, 0x1231); /* Set internal timing */
    LCD_WriteReg(LCD_REG_1, 0x0100);   /* Set SS and SM bit */
    LCD_WriteReg(LCD_REG_2, 0x0700);   /* Set 1 line inversion */
    LCD_WriteReg(LCD_REG_3, 0x1030);   /* Set GRAM write direction and BGR=1. */
    LCD_WriteReg(LCD_REG_4, 0x0000);   /* Resize register */
    LCD_WriteReg(LCD_REG_8, 0x0202);   /* Set the back porch and front porch */
    LCD_WriteReg(LCD_REG_9, 0x0000);   /* Set non-display area refresh cycle ISC[3:0] */
    LCD_WriteReg(LCD_REG_10, 0x0000);  /* FMARK function */
    LCD_WriteReg(LCD_REG_12, 0x0000);  /* RGB interface setting */
    LCD_WriteReg(LCD_REG_13, 0x0000);  /* Frame marker Position */
    LCD_WriteReg(LCD_REG_15, 0x0000);  /* RGB interface polarity */
    /* Power On sequence -------------------------------------------------------*/
    LCD_WriteReg(LCD_REG_16, 0x0000);  /* SAP, BT[3:0], AP, DSTB, SLP, STB */
    LCD_WriteReg(LCD_REG_17, 0x0000);  /* DC1[2:0], DC0[2:0], VC[2:0] */
    LCD_WriteReg(LCD_REG_18, 0x0000);  /* VREG1OUT voltage */
    LCD_WriteReg(LCD_REG_19, 0x0000);  /* VDV[4:0] for VCOM amplitude */
    _delay_(20);                /* Dis-charge capacitor power voltage (200ms) */  
    LCD_WriteReg(LCD_REG_17, 0x0007);  /* DC1[2:0], DC0[2:0], VC[2:0] */
    _delay_(5);                 /* Delay 50 ms */
    LCD_WriteReg(LCD_REG_16, 0x12B0);  /* SAP, BT[3:0], AP, DSTB, SLP, STB */
    _delay_(5);                  /* Delay 50 ms */
    LCD_WriteReg(LCD_REG_18, 0x01BD);  /* External reference voltage= Vci */
    _delay_(5);                 /* Delay 50 ms */ 
    LCD_WriteReg(LCD_REG_19, 0x1400);       /* VDV[4:0] for VCOM amplitude */
    LCD_WriteReg(LCD_REG_41, 0x000E);  /* VCM[4:0] for VCOMH */
    _delay_(5);                 /* Delay 50 ms */
    LCD_WriteReg(LCD_REG_32, 0x0000);  /* GRAM horizontal Address */
    LCD_WriteReg(LCD_REG_33, 0x013F);  /* GRAM Vertical Address */
    /* Adjust the Gamma Curve --------------------------------------------------*/
    LCD_WriteReg(LCD_REG_48, 0x0007);
    LCD_WriteReg(LCD_REG_49, 0x0302);
    LCD_WriteReg(LCD_REG_50, 0x0105);
    LCD_WriteReg(LCD_REG_53, 0x0206);
    LCD_WriteReg(LCD_REG_54, 0x0808);
    LCD_WriteReg(LCD_REG_55, 0x0206);
    LCD_WriteReg(LCD_REG_56, 0x0504);
    LCD_WriteReg(LCD_REG_57, 0x0007);
    LCD_WriteReg(LCD_REG_60, 0x0105);
    LCD_WriteReg(LCD_REG_61, 0x0808);
    /* Set GRAM area -----------------------------------------------------------*/
    LCD_WriteReg(LCD_REG_80, 0x0000);  /* Horizontal GRAM Start Address */
    LCD_WriteReg(LCD_REG_81, 0x00EF);  /* Horizontal GRAM End Address */
    LCD_WriteReg(LCD_REG_82, 0x0000);  /* Vertical GRAM Start Address */
    LCD_WriteReg(LCD_REG_83, 0x013F);  /* Vertical GRAM End Address */
    LCD_WriteReg(LCD_REG_96,  0xA700); /* Gate Scan Line */
    LCD_WriteReg(LCD_REG_97,  0x0001); /* NDL,VLE, REV */
    LCD_WriteReg(LCD_REG_106, 0x0000); /* Set scrolling line */
    /* Partial Display Control -------------------------------------------------*/
    LCD_WriteReg(LCD_REG_128, 0x0000);
    LCD_WriteReg(LCD_REG_129, 0x0000);
    LCD_WriteReg(LCD_REG_130, 0x0000);
    LCD_WriteReg(LCD_REG_131, 0x0000);
    LCD_WriteReg(LCD_REG_132, 0x0000);
    LCD_WriteReg(LCD_REG_133, 0x0000);
    /* Panel Control -----------------------------------------------------------*/
    LCD_WriteReg(LCD_REG_144, 0x0010);
    LCD_WriteReg(LCD_REG_146, 0x0000);
    LCD_WriteReg(LCD_REG_147, 0x0003);
    LCD_WriteReg(LCD_REG_149, 0x0110);
    LCD_WriteReg(LCD_REG_151, 0x0000);
    LCD_WriteReg(LCD_REG_152, 0x0000);
    /* Set GRAM write direction and BGR = 1
       I/D=01 (Horizontal : increment, Vertical : decrement)
       AM=1 (address is updated in vertical writing direction) */
    LCD_WriteReg(LCD_REG_3, 0x1018);
    LCD_WriteReg(LCD_REG_7, 0x0112);   /* 262K color and display ON */
  }
  else if(LCDType == LCD_HX8312)
  {
    /* Enable the LCD Oscillator ---------------------------------------------*/
    LCD_WriteReg(LCD_REG_1, 0x10);
    LCD_WriteReg(LCD_REG_0, 0xA0);
    LCD_WriteReg(LCD_REG_3, 0x01);
    _delay_(1); /* Delay 10 ms */
    LCD_WriteReg(LCD_REG_3, 0x00);
    LCD_WriteReg(LCD_REG_43, 0x04);
  
    LCD_WriteReg(LCD_REG_40, 0x18);
    LCD_WriteReg(LCD_REG_26, 0x05);
    LCD_WriteReg(LCD_REG_37, 0x05);
    LCD_WriteReg(LCD_REG_25, 0x00);
    
    /* LCD Power On ----------------------------------------------------------*/
    LCD_WriteReg(LCD_REG_28, 0x73);
    LCD_WriteReg(LCD_REG_36, 0x74);
    LCD_WriteReg(LCD_REG_30, 0x01);
    LCD_WriteReg(LCD_REG_24, 0xC1);
    _delay_(1); /* Delay 10 ms */
    LCD_WriteReg(LCD_REG_24, 0xE1);
    LCD_WriteReg(LCD_REG_24, 0xF1);
    _delay_(6); /* Delay 60 ms */
    LCD_WriteReg(LCD_REG_24, 0xF5);
    _delay_(6); /* Delay 60 ms */
    LCD_WriteReg(LCD_REG_27, 0x09);
    _delay_(1); /* Delay 10 ms */
    LCD_WriteReg(LCD_REG_31, 0x11);
    LCD_WriteReg(LCD_REG_32, 0x0E);
    LCD_WriteReg(LCD_REG_30, 0x81);
    _delay_(1); /* Delay 10 ms */
    
    /* Chip Set --------------------------------------------------------------*/
    LCD_WriteReg(LCD_REG_157, 0x00);
    LCD_WriteReg(LCD_REG_192, 0x00);
   
    LCD_WriteReg(LCD_REG_14, 0x00);
    LCD_WriteReg(LCD_REG_15, 0x00);
    LCD_WriteReg(LCD_REG_16, 0x00);
    LCD_WriteReg(LCD_REG_17, 0x00);
    LCD_WriteReg(LCD_REG_18, 0x00);
    LCD_WriteReg(LCD_REG_19, 0x00);
    LCD_WriteReg(LCD_REG_20, 0x00);
    LCD_WriteReg(LCD_REG_21, 0x00);
    LCD_WriteReg(LCD_REG_22, 0x00);
    LCD_WriteReg(LCD_REG_23, 0x00);
   
    LCD_WriteReg(LCD_REG_52, 0x01);
    LCD_WriteReg(LCD_REG_53, 0x00);
    LCD_WriteReg(LCD_REG_75, 0x00);
    LCD_WriteReg(LCD_REG_76, 0x00);
    LCD_WriteReg(LCD_REG_78, 0x00);
    LCD_WriteReg(LCD_REG_79, 0x00);
    LCD_WriteReg(LCD_REG_80, 0x00);
  
    LCD_WriteReg(LCD_REG_60, 0x00);
    LCD_WriteReg(LCD_REG_61, 0x00);
    LCD_WriteReg(LCD_REG_62, 0x01);
    LCD_WriteReg(LCD_REG_63, 0x3F);
    LCD_WriteReg(LCD_REG_64, 0x02);
    LCD_WriteReg(LCD_REG_65, 0x02);
    LCD_WriteReg(LCD_REG_66, 0x00);
    LCD_WriteReg(LCD_REG_67, 0x00);
    LCD_WriteReg(LCD_REG_68, 0x00);
    LCD_WriteReg(LCD_REG_69, 0x00);
    LCD_WriteReg(LCD_REG_70, 0xEF);
    LCD_WriteReg(LCD_REG_71, 0x00);
    LCD_WriteReg(LCD_REG_72, 0x00);
    LCD_WriteReg(LCD_REG_73, 0x01);
    LCD_WriteReg(LCD_REG_74, 0x3F);
  
    LCD_WriteReg(LCD_REG_29, 0x08);  /* R29:Gate scan direction setting */
  
    LCD_WriteReg(LCD_REG_134, 0x00);
    LCD_WriteReg(LCD_REG_135, 0x30);
    LCD_WriteReg(LCD_REG_136, 0x02);
    LCD_WriteReg(LCD_REG_137, 0x05);
  
    LCD_WriteReg(LCD_REG_141, 0x01);  /* R141:Register set-up mode for one line clock */
    LCD_WriteReg(LCD_REG_139, 0x20);  /* R139:One line SYSCLK number in one-line */
    LCD_WriteReg(LCD_REG_51, 0x01);  /* R51:N line inversion setting */
    LCD_WriteReg(LCD_REG_55, 0x01);  /* R55:Scanning method setting */
    LCD_WriteReg(LCD_REG_118, 0x00);
   
    /* Gamma Set -------------------------------------------------------------*/
    LCD_WriteReg(LCD_REG_143, 0x10);
    LCD_WriteReg(LCD_REG_144, 0x67);
    LCD_WriteReg(LCD_REG_145, 0x07);
    LCD_WriteReg(LCD_REG_146, 0x65);
    LCD_WriteReg(LCD_REG_147, 0x07);
    LCD_WriteReg(LCD_REG_148, 0x01);
    LCD_WriteReg(LCD_REG_149, 0x76);
    LCD_WriteReg(LCD_REG_150, 0x56);
    LCD_WriteReg(LCD_REG_151, 0x00);
    LCD_WriteReg(LCD_REG_152, 0x06);
    LCD_WriteReg(LCD_REG_153, 0x03);
    LCD_WriteReg(LCD_REG_154, 0x00);
  
    /* Display On ------------------------------------------------------------*/
    LCD_WriteReg(LCD_REG_1, 0x50);
    LCD_WriteReg(LCD_REG_5, 0x04);
    LCD_WriteReg(LCD_REG_0, 0x80);
    LCD_WriteReg(LCD_REG_59, 0x01);
    _delay_(4);  /* Delay 40 ms */
    LCD_WriteReg(LCD_REG_0, 0x20);
  }  
}


/**
  * @brief  Initializes the LCD.
  * @param  None
  * @retval None
  */
void STM3210B_LCD_Init(void)
{
  /* Setups the LCD */
  LCD_Setup();
  /* Try to read new LCD controller ID 0x9320 */
  if (LCD_ReadReg(LCD_REG_0) == LCD_ILI9320)
  {
    LCDType = LCD_ILI9320;
  }
  else
  {
    LCDType = LCD_SPFD5408;
    /* Setups the LCD */
    LCD_Setup();
    /* Try to read new LCD controller ID 0x5408 */
    if (LCD_ReadReg(LCD_REG_0) != LCD_SPFD5408)
    {
      LCDType = LCD_HX8312;
      /* Setups the LCD */
      LCD_Setup();
    }
  }
  LCD_SetFont(&LCD_DEFAULT_FONT);
}

/**
  * @brief  Sets the LCD Text and Background colors.
  * @param  _TextColor: specifies the Text Color.
  * @param  _BackColor: specifies the Background Color.
  * @retval None
  */
void LCD_SetColors(__IO uint16_t _TextColor, __IO uint16_t _BackColor)
{
  TextColor = _TextColor; 
  BackColor = _BackColor;
}

/**
  * @brief  Gets the LCD Text and Background colors.
  * @param  _TextColor: pointer to the variable that will contain the Text 
            Color.