Chinese and English display modulo settings

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Molding software configuration

The font modulo software used in the test example is PCtoLCD2002. For detailed instructions on its use, see the following document:

PCtoLCD2002 Instructions for use

The PCtoLCD2002 software is specifically set as follows:

  • Font and size selection
MSP130W-002.jpg
Mode needs to select字符模式
Fonts can be selected according to needs, such as selection宋体
The word width and word height can be selected according to the needs. The font sizes commonly used in Chinese and English are as follows:
Chinese (word width x word height):16x16、24x24、32x32
English (character x word height):6x8、6x12、8x16、12x24、16x32(The corresponding font size needs to be set to respectively12x8、12x12、16x16、24x24、32x32)
Modify the dot matrix size can be set according to requirements, generally set to0
  • Font option setting
There are many situations in the font option setting. Different settings and different code processing methods.
Here is an example of the following settings, the subsequent function code is written based on this setting.
MSP130W-001.jpg
Dot matrix format select 阴码
Modal mode select 逐行式
Molding trend select 顺向(高位在前)
Output number system select 十六进制数
Custom format select C51格式

Bottom support function

  • LCD_SetWindows
The function implementation differs depending on the driver IC (different drive ICs set coordinate values with different commands and principles),
but the principle is basically the same, setting the start and end coordinates and setting a display area.
Examples are as follows (ILI9341 as an example)
void LCD_SetWindows(u16 xStar, u16 yStar,u16 xEnd,u16 yEnd)
{	
	LCD_WR_REG(lcddev.setxcmd);	
	LCD_WR_DATA(xStar>>8);
	LCD_WR_DATA(0x00FF&xStar);		
	LCD_WR_DATA(xEnd>>8);
	LCD_WR_DATA(0x00FF&xEnd);

	LCD_WR_REG(lcddev.setycmd);	
	LCD_WR_DATA(yStar>>8);
	LCD_WR_DATA(0x00FF&yStar);		
	LCD_WR_DATA(yEnd>>8);
	LCD_WR_DATA(0x00FF&yEnd);

	LCD_WriteRAM_Prepare();	//Start writing to GRAM		
}
  • Lcd_WriteData_16Bit
This function is to set the pixel color value into GRAM, and then display it
Examples are as follows (ILI9341 as an example)
void Lcd_WriteData_16Bit(u16 Data)
{	
      LCD_CS_CLR;
      LCD_RS_SET;  
      SPI_WriteByte(SPI2,Data>>8);
      SPI_WriteByte(SPI2,Data);
      LCD_CS_SET;
}
  • LCD_DrawPoint
In fact, the LCD_SetWindows function and the Lcd_WriteData_16Bit function are used to display a pixel.
Examples are as follows (ILI9341 as an example)
void LCD_DrawPoint(u16 x,u16 y)
{
	LCD_SetCursor(x,y);//Set the cursor position
	Lcd_WriteData_16Bit(POINT_COLOR); 
}

Single English character modulo

  • 6x8 English font modulo description
The size settings are as shown below:
Module-009.jpg
The function is defined as follows:
static void LCD_Show_0806_char(u16 x,u16 y,u16 fc, u16 bc, u8 num,u8 mode)
{
    u8 temp;
    u8 pos,t;
    u16 colortemp=POINT_COLOR;      		   
    num=num-' ';//Get the offset value
    LCD_SetWindows(x,y,x+6-1,y+8-1);//Set a single text display window
    if(!mode) //Non-overlay mode: The font has a background color, which will overwrite the original display
    {		
        for(pos=0;pos<8;pos++)
	{
	    temp = asc2_0806[num][pos];//Call 0806 font, you need to take the model definition
	    for(t=0;t<6;t++)
            {                 
	        if(temp&0x80)
	        {
		    Lcd_WriteData_16Bit(fc);
		}
		else 
		{
		    Lcd_WriteData_16Bit(bc); 
		}
		temp<<=1;
	    }
			
	}	
    }
    else//Overlay mode: the font does not have a background color, and is directly superimposed and displayed on the original display content
    {
	for(pos=0;pos<8;pos++)
	{
	    temp = asc2_0806[num][pos];//Call 0806 font, you need to take the model definition
	    for(t=0;t<6;t++)
            {   
		POINT_COLOR=fc;              
		if(temp&0x80)
		{
		    LCD_DrawPoint(x+t,y+pos);//Draw a point      
		}
		temp<<=1;
	    }
	}
    }
    POINT_COLOR=colortemp;	
    LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);//Restore window to full screen     	   
}
  • 6x12 English font modulo description
The size settings are as shown below:
Module-010.jpg
The function is defined as follows:
static void LCD_Show_1206_char(u16 x,u16 y,u16 fc, u16 bc, u8 num,u8 mode)
{
    u8 temp;
    u8 pos,t;
    u16 colortemp=POINT_COLOR;      		   
    num=num-' ';//Get the offset value
    LCD_SetWindows(x,y,x+6-1,y+12-1);//Set a single text display window
    if(!mode) //Non-overlay mode: The font has a background color, which will overwrite the original display
    {		
        for(pos=0;pos<12;pos++)
	{
	    temp = asc2_1206[num][pos];//Call 1206 font, you need to take the model definition
	    for(t=0;t<6;t++)
            {                 
		if(temp&0x80)
		{
		    Lcd_WriteData_16Bit(fc);
		}
		else 
		{
		    Lcd_WriteData_16Bit(bc); 
		}
		temp<<=1;
	    }
			
	}	
    }
    else//Overlay mode: the font does not have a background color, and is directly superimposed and displayed on the original display content
    {
	for(pos=0;pos<12;pos++)
	{
	    temp = asc2_1206[num][pos];//Call 1206 font, you need to take the model definition
	    for(t=0;t<6;t++)
	    {   
		POINT_COLOR=fc;              
		if(temp&0x80)
		{
		    LCD_DrawPoint(x+t,y+pos);//Draw a point    
		}
		temp<<=1;
	    }
	}
    }
    POINT_COLOR=colortemp;	
    LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);//Restore window to full screen         	   
}
  • 8x16 English font modulo description
The size settings are as shown below:
Module-011.jpg
The function is defined as follows:
static void LCD_Show_1608_char(u16 x,u16 y,u16 fc, u16 bc, u8 num,u8 mode)
{
    u8 temp;
    u8 pos,t;
    u16 colortemp=POINT_COLOR;      		   
    num=num-' ';//Get the offset value
    LCD_SetWindows(x,y,x+8-1,y+16-1);//Set a single text display window
    if(!mode) //Non-overlay mode: The font has a background color, which will overwrite the original display
    {		
	for(pos=0;pos<16;pos++)
	{
	    temp = asc2_1608[num][pos];//Call 1608 font, you need to take the model definition
	    for(t=0;t<8;t++)
            {                 
		if(temp&0x80)
	        {
		    Lcd_WriteData_16Bit(fc);
		}
		else 
		{
		    Lcd_WriteData_16Bit(bc); 
		}
		temp<<=1;
	    }
	}	
    }
    else//Overlay mode: the font does not have a background color, and is directly superimposed and displayed on the original display content
    {
	for(pos=0;pos<16;pos++)
	{
	    temp = asc2_1608[num][pos];//Call 1608 font, you need to take the model definition
	    for(t=0;t<8;t++)
	    {   
		POINT_COLOR=fc;              
		if(temp&0x80)
		{
		    LCD_DrawPoint(x+t,y+pos);//Draw a point    
		}
		temp<<=1;
	    }
	}
    }
    POINT_COLOR=colortemp;	
    LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);//Restore window to full screen          	   
}
  • 12x24 English font modulo description
The size settings are as shown below:
Module-012.jpg
The function is defined as follows:
static void LCD_Show_2412_char(u16 x,u16 y,u16 fc, u16 bc, u8 num,u8 mode)
{
    u16 temp;
    u8 pos,t;
    u16 colortemp=POINT_COLOR;      		   
    num=num-' ';//Get the offset value
    LCD_SetWindows(x,y,x+12-1,y+24-1);//Set a single text display window
    if(!mode) //Non-overlay mode: The font has a background color, which will overwrite the original display
    {		
	for(pos=0;pos<24;pos++)
	{
	    temp = (asc2_2412[num][pos*2]<<8)|asc2_2412[num][pos*2+1];//Call 2412 font, you need to take the model definition
	    for(t=0;t<12;t++)
	    {                 
	        if(temp&0x8000)
		{
		    Lcd_WriteData_16Bit(fc);
		}
		else 
		{
		    Lcd_WriteData_16Bit(bc); 
		}
		temp<<=1;
	    }
	}	
    }
    else//Overlay mode: the font does not have a background color, and is directly superimposed and displayed on the original display content
    {
	for(pos=0;pos<24;pos++)
        {
	    temp = (asc2_2412[num][pos*2]<<8)|asc2_2412[num][pos*2+1];//Call 2412 font, you need to take the model definition
	    for(t=0;t<12;t++)
	    {   
		POINT_COLOR=fc;              
		if(temp&0x8000)
		{
		    LCD_DrawPoint(x+t,y+pos);//Draw a point     
		}
		temp<<=1;
	    }
        }
    }
    POINT_COLOR=colortemp;	
    LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);//Restore window to full screen       	   
}
  • 16x32 English font modulo description
The size settings are as shown below:
Module-013.jpg
The function is defined as follows:
static void LCD_Show_3216_char(u16 x,u16 y,u16 fc, u16 bc, u8 num,u8 mode)
{
    u16 temp;
    u8 pos,t;
    u16 colortemp=POINT_COLOR;      		   
    num=num-' ';//Get the offset value
    LCD_SetWindows(x,y,x+16-1,y+32-1);//Set a single text display window
    if(!mode) //Non-overlay mode: The font has a background color, which will overwrite the original display
    {		
	for(pos=0;pos<32;pos++)
	{
	    temp = (asc2_3216[num][pos*2]<<8)|asc2_3216[num][pos*2+1];//Call 3216 font, you need to take the model definition
	    for(t=0;t<16;t++)
	    {                 
		if(temp&0x8000)
		{
		    Lcd_WriteData_16Bit(fc);
		}
		else 
		{
		    Lcd_WriteData_16Bit(bc); 
		}
		temp<<=1;
	    }
			
	}	
    }
    else//Overlay mode: the font does not have a background color, and is directly superimposed and displayed on the original display content
    {
        for(pos=0;pos<32;pos++)
	{
	    temp = (asc2_3216[num][pos*2]<<8)|asc2_3216[num][pos*2+1];//Call 3216 font, you need to take the model definition
	    for(t=0;t<16;t++)
	    {   
		POINT_COLOR=fc;              
		if(temp&(0x8000))
		{
		    LCD_DrawPoint(x+t,y+pos);//Draw a point    
		}
		temp<<=1;
	    }
	}
    }
    POINT_COLOR=colortemp;	
    LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);//Restore window to full screen       	   
}

Single Chinese character modulo

16x16 Chinese font modulo description

The size settings are as shown below:
Module-014.jpg
The function is defined as follows:
void GUI_DrawFont16(u16 x, u16 y, u16 fc, u16 bc, u8 *s,u8 mode)
{
   u8 i,j;
   u16 k;
   u16 HZnum;
   u16 x0=x;
   HZnum=sizeof(tfont16)/sizeof(typFNT_GB16);	//Automatic statistics of the number of Chinese characters
   for (k=0;k<HZnum;k++) 
   {
       if((tfont16[k].Index[0]==*(s))&&(tfont16[k].Index[1]==*(s+1)))
       { 	
           LCD_SetWindows(x,y,x+16-1,y+16-1);
	   for(i=0;i<16*2;i++)
           {
		for(j=0;j<8;j++)
		{	
		     if(!mode) //Non-overlay mode: The font has a background color, which will overwrite the original display
		     {
			  if(tfont16[k].Msk[i]&(0x80>>j))
                          {	
                               Lcd_WriteData_16Bit(fc);
                          }			  
                          else 
                          {
                               Lcd_WriteData_16Bit(bc);
			  }
		     }
		     else //Overlay mode: the font does not have a background color, and is directly superimposed and displayed on the original display content
		     {
			  POINT_COLOR=fc;
			  if(tfont16[k].Msk[i]&(0x80>>j))						
                          {
                               LCD_DrawPoint(x,y);//Draw a point  
			  }
			  x++;
			  if((x-x0)==16)
			  {
			       x=x0;
			       y++;
			       break;
			  }
		     }
	        }
	    }
	 }				  	
	 continue;  //Find the corresponding dot matrix font to exit immediately, to prevent the impact of multiple Chinese characters repeated modulo
    }
    LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);//Restore window to full screen
}

24x24 Chinese Chinese font modulo description

The size settings are as shown below:
Module-015.jpg
The function is defined as follows:
void GUI_DrawFont24(u16 x, u16 y, u16 fc, u16 bc, u8 *s,u8 mode)
{
    u8 i,j;
    u16 k;
    u16 HZnum;
    u16 x0=x;
    HZnum=sizeof(tfont24)/sizeof(typFNT_GB24);	//Automatic statistics of the number of Chinese characters
    for (k=0;k<HZnum;k++) 
    {
        if((tfont24[k].Index[0]==*(s))&&(tfont24[k].Index[1]==*(s+1)))
        { 	
             LCD_SetWindows(x,y,x+24-1,y+24-1);
	     for(i=0;i<24*3;i++)
	     {
		  for(j=0;j<8;j++)
		  {
			if(!mode) //Non-overlay mode: The font has a background color, which will overwrite the original display
			{
                              if(tfont24[k].Msk[i]&(0x80>>j))
                              {	 
                                   Lcd_WriteData_16Bit(fc);
			      }						
                              else 
                              {
                                   Lcd_WriteData_16Bit(bc);
			      }					
                        }
		        else //Overlay mode: the font does not have a background color, and is directly superimposed and displayed on the original display content
		        {
			      POINT_COLOR=fc;
			      if(tfont24[k].Msk[i]&(0x80>>j))
                              { 
                                   LCD_DrawPoint(x,y);// Draw a point
			      }					
                              x++;
			      if((x-x0)==24)
			      {
				   x=x0;
				   y++;
				   break;
			      }
		         }
		   }
	      }
	 }				  	
	 continue;  //Find the corresponding dot matrix font to exit immediately, to prevent the impact of multiple Chinese characters repeated modulo
    }
    LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);// Restore window to full screen
}

32x32 Chinese Chinese font modulo description

The size settings are as shown below:
Module-016.jpg
The function is defined as follows:
void GUI_DrawFont32(u16 x, u16 y, u16 fc, u16 bc, u8 *s,u8 mode)
{
    u8 i,j;
    u16 k;
    u16 HZnum;
    u16 x0=x;
    HZnum=sizeof(tfont32)/sizeof(typFNT_GB32);	//Automatic statistics of the number of Chinese characters
    for (k=0;k<HZnum;k++) 
    {
	 if ((tfont32[k].Index[0]==*(s))&&(tfont32[k].Index[1]==*(s+1)))
	 { 	
               LCD_SetWindows(x,y,x+32-1,y+32-1);
	       for(i=0;i<32*4;i++)
	       {
		     for(j=0;j<8;j++)
	             {
			   if(!mode) //Non-overlay mode: The font has a background color, which will overwrite the original display
			   {
				if(tfont32[k].Msk[i]&(0x80>>j))
                                {
				      Lcd_WriteData_16Bit(fc);
                                }				
				else 
                                {
                                      Lcd_WriteData_16Bit(bc);
				}			
                           }
			   else //Overlay mode: the font does not have a background color, and is directly superimposed and displayed on the original display content
			   {
				POINT_COLOR=fc;
			        if(tfont32[k].Msk[i]&(0x80>>j))
                                {
                                      LCD_DrawPoint(x,y);// Draw a point
				}		
		                x++;
				if((x-x0)==32)
				{
				      x=x0;
				      y++;
				      break;
				}
			   }
		      }
		}
	  }				  	
	  continue;  //Find the corresponding dot matrix font to exit immediately, to prevent the impact of multiple Chinese characters repeated modulo
     }
     LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);// Restore window to full screen
}

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