lcd.c

FreeRTOS is a portable, open source, mini Real Time Kernel - a free to download and royalty free RTO

         0x00C0, 0x00C0, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
         /* 'j' */
         0x0000, 0x00C0, 0x00C0, 0x0000, 0x0000, 0x0000, 0x00C0, 0x00C0,
         0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0,
         0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00F8, 0x0078, 0x0000,
         /* 'k' */
         0x0000, 0x000C, 0x000C, 0x000C, 0x000C, 0x000C, 0x0C0C, 0x060C,
         0x030C, 0x018C, 0x00CC, 0x006C, 0x00FC, 0x019C, 0x038C, 0x030C,
         0x060C, 0x0C0C, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
         /* 'l' */
         0x0000, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0,
         0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0,
         0x00C0, 0x00C0, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
         /* 'm' */
         0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x3C7C, 0x7EFF,
         0xE3C7, 0xC183, 0xC183, 0xC183, 0xC183, 0xC183, 0xC183, 0xC183,
         0xC183, 0xC183, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
         /* 'n' */
         0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0798, 0x0FF8,
         0x1C38, 0x1818, 0x1818, 0x1818, 0x1818, 0x1818, 0x1818, 0x1818,
         0x1818, 0x1818, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
         /* 'o' */
         0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x03C0, 0x0FF0,
         0x0C30, 0x1818, 0x1818, 0x1818, 0x1818, 0x1818, 0x1818, 0x0C30,
         0x0FF0, 0x03C0, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
         /* 'p' */
         0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x03D8, 0x0FF8,
         0x0C38, 0x1818, 0x1818, 0x1818, 0x1818, 0x1818, 0x1818, 0x0C38,
         0x0FF8, 0x03D8, 0x0018, 0x0018, 0x0018, 0x0018, 0x0018, 0x0000,
         /* 'q' */
         0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x1BC0, 0x1FF0,
         0x1C30, 0x1818, 0x1818, 0x1818, 0x1818, 0x1818, 0x1818, 0x1C30,
         0x1FF0, 0x1BC0, 0x1800, 0x1800, 0x1800, 0x1800, 0x1800, 0x0000,
         /* 'r' */
         0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x07B0, 0x03F0,
         0x0070, 0x0030, 0x0030, 0x0030, 0x0030, 0x0030, 0x0030, 0x0030,
         0x0030, 0x0030, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
         /* 's' */
         0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x03E0, 0x03F0,
         0x0E38, 0x0C18, 0x0038, 0x03F0, 0x07C0, 0x0C00, 0x0C18, 0x0E38,
         0x07F0, 0x03E0, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
         /* 't' */
         0x0000, 0x0000, 0x0080, 0x00C0, 0x00C0, 0x00C0, 0x07F0, 0x07F0,
         0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0,
         0x07C0, 0x0780, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
         /* 'u' */
         0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x1818, 0x1818,
         0x1818, 0x1818, 0x1818, 0x1818, 0x1818, 0x1818, 0x1818, 0x1C38,
         0x1FF0, 0x19E0, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
         /* 'v' */
         0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x180C, 0x0C18,
         0x0C18, 0x0C18, 0x0630, 0x0630, 0x0630, 0x0360, 0x0360, 0x0360,
         0x01C0, 0x01C0, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
         /* 'w' */
         0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x41C1, 0x41C1,
         0x61C3, 0x6363, 0x6363, 0x6363, 0x3636, 0x3636, 0x3636, 0x1C1C,
         0x1C1C, 0x1C1C, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
         /* 'x' */
         0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x381C, 0x1C38,
         0x0C30, 0x0660, 0x0360, 0x0360, 0x0360, 0x0360, 0x0660, 0x0C30,
         0x1C38, 0x381C, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
         /* 'y' */
         0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x3018, 0x1830,
         0x1830, 0x1870, 0x0C60, 0x0C60, 0x0CE0, 0x06C0, 0x06C0, 0x0380,
         0x0380, 0x0380, 0x0180, 0x0180, 0x01C0, 0x00F0, 0x0070, 0x0000,
         /* 'z' */
         0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x1FFC, 0x1FFC,
         0x0C00, 0x0600, 0x0300, 0x0180, 0x00C0, 0x0060, 0x0030, 0x0018,
         0x1FFC, 0x1FFC, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
         /* '{' */
         0x0000, 0x0300, 0x0180, 0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x00C0,
         0x00C0, 0x0060, 0x0060, 0x0030, 0x0060, 0x0040, 0x00C0, 0x00C0,
         0x00C0, 0x00C0, 0x00C0, 0x00C0, 0x0180, 0x0300, 0x0000, 0x0000,
         /* '|' */
         0x0000, 0x0180, 0x0180, 0x0180, 0x0180, 0x0180, 0x0180, 0x0180,
         0x0180, 0x0180, 0x0180, 0x0180, 0x0180, 0x0180, 0x0180, 0x0180,
         0x0180, 0x0180, 0x0180, 0x0180, 0x0180, 0x0180, 0x0180, 0x0000,
         /* '}' */
         0x0000, 0x0060, 0x00C0, 0x01C0, 0x0180, 0x0180, 0x0180, 0x0180,
         0x0180, 0x0300, 0x0300, 0x0600, 0x0300, 0x0100, 0x0180, 0x0180,
         0x0180, 0x0180, 0x0180, 0x0180, 0x00C0, 0x0060, 0x0000, 0x0000,
         /* '~' */
         0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
         0x10F0, 0x1FF8, 0x0F08, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
         0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
      };
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
  /* Global variables to set the written text color */
static  vu16 TextColor = 0x0000, BackColor = 0xFFFF;

/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
static u32 StrLength(u8 *Str);

/*******************************************************************************
* Function Name  : LCD_Init
* Description    : Initializes LCD.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void LCD_Init(void)
{
/* Configure the LCD Control pins --------------------------------------------*/
  LCD_CtrlLinesConfig();

/* Configure the SPI2 interface ----------------------------------------------*/
  LCD_SPIConfig();

/* Enable the LCD Oscillator -------------------------------------------------*/
  LCD_WriteReg(R1, 0x10);
  LCD_WriteReg(R0, 0xA0);
  LCD_WriteReg(R3, 0x01);
  vTaskDelay( 10 / portTICK_RATE_MS ); /* Delay 10 ms */
  LCD_WriteReg(R3, 0x00);
  LCD_WriteReg(R43, 0x04);

  LCD_WriteReg(R40, 0x18);
  LCD_WriteReg(R26, 0x05);
  LCD_WriteReg(R37, 0x05);
  LCD_WriteReg(R25, 0x00);

/* LCD Power On --------------------------------------------------------------*/
  LCD_WriteReg(R28, 0x73);
  LCD_WriteReg(R36, 0x74);
  LCD_WriteReg(R30, 0x01);
  LCD_WriteReg(R24, 0xC1);
  vTaskDelay( 10 / portTICK_RATE_MS ); /* Delay 10 ms */
  LCD_WriteReg(R24, 0xE1);
  LCD_WriteReg(R24, 0xF1);
  vTaskDelay( 60 / portTICK_RATE_MS ); /* Delay 60 ms */
  LCD_WriteReg(R24, 0xF5);
  vTaskDelay( 60 / portTICK_RATE_MS ); /* Delay 60 ms */
  LCD_WriteReg(R27, 0x09);
  vTaskDelay( 10 / portTICK_RATE_MS ); /* Delay 10 ms */
  LCD_WriteReg(R31, 0x11);
  LCD_WriteReg(R32, 0x0E);
  LCD_WriteReg(R30, 0x81);
  vTaskDelay( 10 / portTICK_RATE_MS ); /* Delay 10 ms */

/* Chip Set ------------------------------------------------------------------*/
  LCD_WriteReg(R157, 0x00);
  LCD_WriteReg(R192, 0x00);

  LCD_WriteReg(R14, 0x00);
  LCD_WriteReg(R15, 0x00);
  LCD_WriteReg(R16, 0x00);
  LCD_WriteReg(R17, 0x00);
  LCD_WriteReg(R18, 0x00);
  LCD_WriteReg(R19, 0x00);
  LCD_WriteReg(R20, 0x00);
  LCD_WriteReg(R21, 0x00);
  LCD_WriteReg(R22, 0x00);
  LCD_WriteReg(R23, 0x00);

  LCD_WriteReg(R52, 0x01);
  LCD_WriteReg(R53, 0x00);

  LCD_WriteReg(R75, 0x00);
  LCD_WriteReg(R76, 0x00);
  LCD_WriteReg(R78, 0x00);
  LCD_WriteReg(R79, 0x00);
  LCD_WriteReg(R80, 0x00);

  LCD_WriteReg(R60, 0x00);
  LCD_WriteReg(R61, 0x00);
  LCD_WriteReg(R62, 0x01);
  LCD_WriteReg(R63, 0x3F);
  LCD_WriteReg(R64, 0x02);
  LCD_WriteReg(R65, 0x02);
  LCD_WriteReg(R66, 0x00);
  LCD_WriteReg(R67, 0x00);
  LCD_WriteReg(R68, 0x00);
  LCD_WriteReg(R69, 0x00);
  LCD_WriteReg(R70, 0xEF);
  LCD_WriteReg(R71, 0x00);
  LCD_WriteReg(R72, 0x00);
  LCD_WriteReg(R73, 0x01);
  LCD_WriteReg(R74, 0x3F);

  LCD_WriteReg(R29, 0x08);  /* R29:Gate scan direction setting */

  LCD_WriteReg(R134, 0x00);
  LCD_WriteReg(R135, 0x30);
  LCD_WriteReg(R136, 0x02);
  LCD_WriteReg(R137, 0x05);

  LCD_WriteReg(R141, 0x01);  /* R141:Register set-up mode for one line clock */
  LCD_WriteReg(R139, 0x20);  /* R139:One line SYSCLK number in one-line */
  LCD_WriteReg(R51, 0x01);  /* R51:N line inversion setting */
  LCD_WriteReg(R55, 0x01);  /* R55:Scanning method setting */
  LCD_WriteReg(R118, 0x00);

/* Gamma Set -----------------------------------------------------------------*/
  LCD_WriteReg(R143, 0x10);
  LCD_WriteReg(R144, 0x67);
  LCD_WriteReg(R145, 0x07);
  LCD_WriteReg(R146, 0x65);
  LCD_WriteReg(R147, 0x07);
  LCD_WriteReg(R148, 0x01);
  LCD_WriteReg(R149, 0x76);
  LCD_WriteReg(R150, 0x56);
  LCD_WriteReg(R151, 0x00);
  LCD_WriteReg(R152, 0x06);
  LCD_WriteReg(R153, 0x03);
  LCD_WriteReg(R154, 0x00);

/* Display On ----------------------------------------------------------------*/
  LCD_WriteReg(R1, 0x50);
  LCD_WriteReg(R5, 0x04);

  LCD_WriteReg(R0, 0x80);
  LCD_WriteReg(R59, 0x01);
  vTaskDelay( 40 / portTICK_RATE_MS );  /* Delay 40 ms */
  LCD_WriteReg(R0, 0x20);
}

/*******************************************************************************
* Function Name  : LCD_SetTextColor
* Description    : Sets the Text color.
* Input          : - Color: specifies the Text color code RGB(5-6-5).
* Output         : - TextColor: Text color global variable used by LCD_DrawChar
*                  and LCD_DrawPicture functions.
* Return         : None
*******************************************************************************/
void LCD_SetTextColor(vu16 Color)
{
  TextColor = Color;
}

/*******************************************************************************
* Function Name  : LCD_SetBackColor
* Description    : Sets the Background color.
* Input          : - Color: specifies the Background color code RGB(5-6-5).
* Output         : - BackColor: Background color global variable used by
*                  LCD_DrawChar and LCD_DrawPicture functions.
* Return         : None
*******************************************************************************/
void LCD_SetBackColor(vu16 Color)
{
  BackColor = Color;
}

/*******************************************************************************
* Function Name  : LCD_ClearLine
* Description    : Clears the selected line.
* Input          : - Line: the Line to be cleared.
*                    This parameter can be one of the following values:
*                       - Linex: where x can be 0..9
* Output         : None
* Return         : None
*******************************************************************************/
void LCD_ClearLine(u8 Line)
{
  LCD_DisplayStringLine(Line, "                    ");
}

/*******************************************************************************
* Function Name  : LCD_Clear
* Description    : Clears the hole LCD.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void LCD_Clear(void)
{
  u32 index = 0;

  LCD_SetCursor(0x00, 0x013F);

  for(index = 0; index < 0x12C00; index++)
  {
    LCD_WriteRAM(White);
  }
}

/*******************************************************************************
* Function Name  : LCD_SetCursor
* Description    : Sets the cursor position.
* Input          : - Xpos: specifies the X position.
*                  - Ypos: specifies the Y position.
* Output         : None
* Return         : None
*******************************************************************************/
void LCD_SetCursor(u8 Xpos, u16 Ypos)
{
  LCD_WriteReg(R66, Xpos);
  LCD_WriteReg(R67, ((Ypos & 0x100)>> 8));
  LCD_WriteReg(R68, (Ypos & 0xFF));
}

/*******************************************************************************
* Function Name  : LCD_DrawChar
* Description    : Draws a character on LCD.
* Input          : - Xpos: the Line where to display the character shape.
*                    This parameter can be one of the following values:
*                       - Linex: where x can be 0..9
*                  - Ypos: start column address.
*                  - c: pointer to the character data.
* Output         : None
* Return         : None
*******************************************************************************/
void LCD_DrawChar(u8 Xpos, u16 Ypos, uc16 *c)
{
  u32 index = 0, i = 0;
  u8 Xaddress = 0;

  Xaddress = Xpos;

  LCD_SetCursor(Xaddress, Ypos);

  for(index = 0; index < 24; index++)
  {
    for(i = 0; i < 16; i++)
    {
      if((c[index] & (1 << i)) == 0x00)
      {
        LCD_WriteRAM(BackColor);
      }
      else
      {
        LCD_WriteRAM(TextColor);
      }
    }
    Xaddress++;
    LCD_SetCursor(Xaddress, Ypos);