stm32100b_eval_lcd.c

STM32的SPI1与SPI2通信

  * @retval None
  */
void LCD_GetColors(__IO uint16_t *_TextColor, __IO uint16_t *_BackColor)
{
  *_TextColor = TextColor; *_BackColor = BackColor;
}

/**
  * @brief  Sets the Text color.
  * @param  Color: specifies the Text color code RGB(5-6-5).
  * @retval None
  */
void LCD_SetTextColor(__IO uint16_t Color)
{
  TextColor = Color;
}


/**
  * @brief  Sets the Background color.
  * @param  Color: specifies the Background color code RGB(5-6-5).
  * @retval None
  */
void LCD_SetBackColor(__IO uint16_t Color)
{
  BackColor = Color;
}

/**
  * @brief  Sets the Text Font.
  * @param  fonts: specifies the font to be used.
  * @retval None
  */
void LCD_SetFont(sFONT *fonts)
{
  LCD_Currentfonts = fonts;
}

/**
  * @brief  Gets the Text Font.
  * @param  None.
  * @retval the used font.
  */
sFONT *LCD_GetFont(void)
{
  return LCD_Currentfonts;
}

/**
  * @brief  Clears the selected line.
  * @param  Line: the Line to be cleared.
  *   This parameter can be one of the following values:
  *     @arg Linex: where x can be 0..n
  * @retval None
  */
void LCD_ClearLine(uint8_t Line)
{
  uint16_t refcolumn = LCD_PIXEL_WIDTH - 1;
  /* Send the string character by character on lCD */
  while (((refcolumn + 1) & 0xFFFF) >= LCD_Currentfonts->Width)
  {
    /* Display one character on LCD */
    LCD_DisplayChar(Line, refcolumn, ' ');
    /* Decrement the column position by 16 */
    refcolumn -= LCD_Currentfonts->Width;
  }
}


/**
  * @brief  Clears the hole LCD.
  * @param  Color: the color of the background.
  * @retval None
  */
void LCD_Clear(uint16_t Color)
{
  uint32_t index = 0;
  
  LCD_SetCursor(0x00, 0x013F); 
  if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
  {
    LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
  }
  for(index = 0; index < 76800; index++)
  {
    LCD_WriteRAM(Color);
  }
  if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
  {
    LCD_CtrlLinesWrite(LCD_NCS_GPIO_PORT, LCD_NCS_PIN, Bit_SET); 
  }  
}


/**
  * @brief  Sets the cursor position.
  * @param  Xpos: specifies the X position.
  * @param  Ypos: specifies the Y position. 
  * @retval None
  */
void LCD_SetCursor(uint8_t Xpos, uint16_t Ypos)
{
  if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
  {
    LCD_WriteReg(LCD_REG_32, Xpos);
    LCD_WriteReg(LCD_REG_33, Ypos);
  }
  else if(LCDType == LCD_HX8312)
  {
    LCD_WriteReg(LCD_REG_66, Xpos);
    LCD_WriteReg(LCD_REG_67, ((Ypos & 0x100)>> 8));
    LCD_WriteReg(LCD_REG_68, (Ypos & 0xFF));
  }
}


/**
  * @brief  Draws a character on LCD.
  * @param  Xpos: the Line where to display the character shape.
  * @param  Ypos: start column address.
  * @param  c: pointer to the character data.
  * @retval None
  */
void LCD_DrawChar(uint8_t Xpos, uint16_t Ypos, const uint16_t *c)
{
  uint32_t index = 0, i = 0;
  uint8_t Xaddress = 0;
   
  Xaddress = Xpos;
  
  LCD_SetCursor(Xaddress, Ypos);
  
  for(index = 0; index < LCD_Currentfonts->Height; index++)
  {
    if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
    {
      LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
    }
    for(i = 0; i < LCD_Currentfonts->Width; i++)
    {
      if((((c[index] & ((0x80 << ((LCD_Currentfonts->Width / 12 ) * 8 ) ) >> i)) == 0x00) &&(LCD_Currentfonts->Width <= 12))||
        (((c[index] & (0x1 << i)) == 0x00)&&(LCD_Currentfonts->Width > 12 )))

      {
        LCD_WriteRAM(BackColor);
      }
      else
      {
        LCD_WriteRAM(TextColor);
      }
    }
    if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
    {
      LCD_CtrlLinesWrite(LCD_NCS_GPIO_PORT, LCD_NCS_PIN, Bit_SET);
    }  
    Xaddress++;
    LCD_SetCursor(Xaddress, Ypos);
  }
}


/**
  * @brief  Displays one character (16dots width, 24dots height).
  * @param  Line: the Line where to display the character shape .
  *   This parameter can be one of the following values:
  *     @arg Linex: where x can be 0..9
  * @param  Column: start column address.
  * @param  Ascii: character ascii code, must be between 0x20 and 0x7E.
  * @retval None
  */
void LCD_DisplayChar(uint8_t Line, uint16_t Column, uint8_t Ascii)
{
  Ascii -= 32;
  LCD_DrawChar(Line, Column, &LCD_Currentfonts->table[Ascii * LCD_Currentfonts->Height]);
}


/**
  * @brief  Displays a maximum of 20 char on the LCD.
  * @param  Line: the Line where to display the character shape .
  *   This parameter can be one of the following values:
  *     @arg Linex: where x can be 0..9
  * @param  *ptr: pointer to string to display on LCD.
  * @retval None
  */
void LCD_DisplayStringLine(uint8_t Line, uint8_t *ptr)
{
  uint16_t refcolumn = LCD_PIXEL_WIDTH - 1;

  /* Send the string character by character on lCD */
  while ((*ptr != 0) & (((refcolumn + 1) & 0xFFFF) >= LCD_Currentfonts->Width))
  {
    /* Display one character on LCD */
    LCD_DisplayChar(Line, refcolumn, *ptr);
    /* Decrement the column position by 16 */
    refcolumn -= LCD_Currentfonts->Width;
    /* Point on the next character */
    ptr++;
  }
}


/**
  * @brief  Sets a display window
  * @param  Xpos: specifies the X buttom left position.
  * @param  Ypos: specifies the Y buttom left position.
  * @param  Height: display window height.
  * @param  Width: display window width.
  * @retval None
  */
void LCD_SetDisplayWindow(uint8_t Xpos, uint16_t Ypos, uint8_t Height, uint16_t Width)
{
  if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
  {
    /* Horizontal GRAM Start Address */
    if(Xpos >= Height)
    {
      LCD_WriteReg(LCD_REG_80, (Xpos - Height + 1));
    }
    else
    {
      LCD_WriteReg(LCD_REG_80, 0);
    }
    /* Horizontal GRAM End Address */
    LCD_WriteReg(LCD_REG_81, Xpos);
    /* Vertical GRAM Start Address */
    if(Ypos >= Width)
    {
      LCD_WriteReg(LCD_REG_82, (Ypos - Width + 1));
    }  
    else
    {
      LCD_WriteReg(LCD_REG_82, 0);
    }
    /* Vertical GRAM End Address */
    LCD_WriteReg(LCD_REG_83, Ypos);
  }
  else if(LCDType == LCD_HX8312)
  {  
    LCD_WriteReg(LCD_REG_1, 0xD0);
    LCD_WriteReg(LCD_REG_5, 0x14);
  
    LCD_WriteReg(LCD_REG_69, (Xpos - Height + 1));
    LCD_WriteReg(LCD_REG_70, Xpos);
 
    LCD_WriteReg(LCD_REG_71, (((Ypos - Width + 1) & 0x100)>> 8));
    LCD_WriteReg(LCD_REG_72, ((Ypos - Width + 1) & 0xFF));
    LCD_WriteReg(LCD_REG_73, ((Ypos & 0x100)>> 8));
    LCD_WriteReg(LCD_REG_74, (Ypos & 0xFF));
  }
  LCD_SetCursor(Xpos, Ypos);
}


/**
  * @brief  Disables LCD Window mode.
  * @param  None
  * @retval None
  */
void LCD_WindowModeDisable(void)
{
  if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
  {
    LCD_SetDisplayWindow(239, 0x13F, 240, 320);
    LCD_WriteReg(LCD_REG_3, 0x1018);
  }
  else if(LCDType == LCD_HX8312)
  {
    LCD_WriteReg(LCD_REG_1, 0x50);
    LCD_WriteReg(LCD_REG_5, 0x04); 
  }
    
}

/**
  * @brief  Displays a line.
  * @param  Xpos: specifies the X position.
  * @param  Ypos: specifies the Y position.
  * @param  Length: line length.
  * @param  Direction: line direction.
  *   This parameter can be one of the following values: Vertical or Horizontal.
  * @retval None
  */
void LCD_DrawLine(uint8_t Xpos, uint16_t Ypos, uint16_t Length, uint8_t Direction)
{
  uint32_t i = 0;
  
  LCD_SetCursor(Xpos, Ypos);
  if(Direction == LCD_DIR_HORIZONTAL)
  { 
    if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
    {
      LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
    }
    for(i = 0; i < Length; i++)
    {
      LCD_WriteRAM(TextColor);
    }
    if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
    {
      LCD_CtrlLinesWrite(LCD_NCS_GPIO_PORT, LCD_NCS_PIN, Bit_SET);
    }
  }
  else
  {
   for(i = 0; i < Length; i++)
    {
      if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
      {
        LCD_WriteRAMWord(TextColor);
      }
      else  if(LCDType == LCD_HX8312)
      {
        LCD_WriteRAM(TextColor);
      }
      Xpos++;
      LCD_SetCursor(Xpos, Ypos);
    }
  }
}


/**
  * @brief  Displays a rectangle.
  * @param  Xpos: specifies the X position.
  * @param  Ypos: specifies the Y position.
  * @param  Height: display rectangle height.
  * @param  Width: display rectangle width.
  * @retval None
  */
void LCD_DrawRect(uint8_t Xpos, uint16_t Ypos, uint8_t Height, uint16_t Width)
{
  LCD_DrawLine(Xpos, Ypos, Width, LCD_DIR_HORIZONTAL);
  LCD_DrawLine((Xpos + Height), Ypos, Width, LCD_DIR_HORIZONTAL);
  
  LCD_DrawLine(Xpos, Ypos, Height, LCD_DIR_VERTICAL);
  LCD_DrawLine(Xpos, (Ypos - Width + 1), Height, LCD_DIR_VERTICAL);
}


/**
  * @brief  Displays a circle.
  * @param  Xpos: specifies the X position.
  * @param  Ypos: specifies the Y position.
  * @param  Radius
  * @retval None
  */
void LCD_DrawCircle(uint8_t Xpos, uint16_t Ypos, uint16_t Radius)
{
  int32_t  D;/* Decision Variable */ 
  uint32_t  CurX;/* Current X Value */
  uint32_t  CurY;/* Current Y Value */ 
  
  D = 3 - (Radius << 1);
  CurX = 0;
  CurY = Radius;
  
  while (CurX <= CurY)
  {
    LCD_SetCursor(Xpos + CurX, Ypos + CurY);
    if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
    {
      LCD_WriteRAMWord(TextColor);
    }
    else if(LCDType == LCD_HX8312)
    {
      LCD_WriteRAM(TextColor);
    }
    LCD_SetCursor(Xpos + CurX, Ypos - CurY);

    if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
    {
      LCD_WriteRAMWord(TextColor);
    }
    else if(LCDType == LCD_HX8312)
    {
      LCD_WriteRAM(TextColor);
    }
    LCD_SetCursor(Xpos - CurX, Ypos + CurY);

    if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
    {
      LCD_WriteRAMWord(TextColor);
    }
    else if(LCDType == LCD_HX8312)
    {
      LCD_WriteRAM(TextColor);
    }
    LCD_SetCursor(Xpos - CurX, Ypos - CurY);

    if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
    {
      LCD_WriteRAMWord(TextColor);
    }
    else if(LCDType == LCD_HX8312)
    {
      LCD_WriteRAM(TextColor);
    }
    LCD_SetCursor(Xpos + CurY, Ypos + CurX);
    if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
    {
      LCD_WriteRAMWord(TextColor);
    }
    else if(LCDType == LCD_HX8312)
    {
      LCD_WriteRAM(TextColor);
    }
    LCD_SetCursor(Xpos + CurY, Ypos - CurX);

    if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
    {
      LCD_WriteRAMWord(TextColor);
    }
    else if(LCDType == LCD_HX8312)
    {
      LCD_WriteRAM(TextColor);
    }
    LCD_SetCursor(Xpos - CurY, Ypos + CurX);

    if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
    {
      LCD_WriteRAMWord(TextColor);
    }
    else if(LCDType == LCD_HX8312)
    {
      LCD_WriteRAM(TextColor);
    }
    LCD_SetCursor(Xpos - CurY, Ypos - CurX);

    if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
    {
      LCD_WriteRAMWord(TextColor);
    }
    else if(LCDType == LCD_HX8312)
    {
      LCD_WriteRAM(TextColor);
    }
    if (D < 0)
    { 
      D += (CurX << 2) + 6;
    }
    else
    {
      D += ((CurX - CurY) << 2) + 10;
      CurY--;
    }
    CurX++;
  }
}


/**
  * @brief  Displays a monocolor picture.
  * @param  Pict: pointer to the picture array.
  * @retval None
  */
void LCD_DrawMonoPict(const uint32_t *Pict)
{
  uint32_t index = 0, i = 0;
  LCD_SetCursor(0, (LCD_PIXEL_WIDTH - 1)); 

  if((LCDType == LCD_ILI9320) || (LCDType == LCD_SPFD5408))
  {
    LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
  }

  for(index = 0; index < 2400; index++)
  {
    for(i = 0; i < 32; i++)