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Chinese and English display modulo settings: Difference between revisions

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== Molding software configuration ==
== <font color="blue">Molding software configuration</font> ==
The font modulo software used in the test example is PCtoLCD2002. For detailed instructions on its use, see the following document:
The font modulo software used in the test example is PCtoLCD2002. For detailed instructions on its use, see the following document:


Line 7: Line 7:
*'''Font and size selection'''
*'''Font and size selection'''
:[[File:MSP130W-002.jpg|750px]]
:[[File:MSP130W-002.jpg|750px]]
:Mode needs to select'''字符模式'''
:Mode needs to select '''字符模式'''
:Fonts can be selected according to needs, such as selection'''宋体'''   
: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:
: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'''
:Chinese (word width x word height):'''16x16、24x24、32x32、48x48'''
:English (character x word height):'''6x8、6x12、8x16、12x24、16x32('''The corresponding font size needs to be set to respectively'''12x8、12x12、16x16、24x24、32x32)'''
:English (character x word height):'''6x8、6x12、8x16、12x24、16x32、24x48('''The corresponding font size needs to be set to respectively'''12x8、12x12、16x16、24x24、32x32、48x48)'''
:Modify the dot matrix size can be set according to requirements, generally set to'''0'''
:Modify the dot matrix size can be set according to requirements, generally set to '''0'''


*'''Font option setting'''
*'''Font option setting'''
:There are many situations in the font option setting. Different settings and different code processing methods.  
:There are many situations in the Chinese and English 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.
:Here is an example of the following settings, the subsequent function code is written based on this setting.
:[[File:MSP130W-001.jpg|750px]]
:[[File:MSP130W-001.jpg|750px]]
Line 24: Line 24:
:Custom format select '''C51格式'''
:Custom format select '''C51格式'''


== Bottom support function ==
== <font color="blue">Bottom support function</font> ==
*'''LCD_SetWindows'''
*'''LCD_SetWindows'''
 
:The function implementation differs depending on the driver IC (different drive ICs set coordinate values with different commands and principles),
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)
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)
{{code|1=
{{code|1=
void LCD_SetWindows(u16 xStar, u16 yStar,u16 xEnd,u16 yEnd)
void LCD_SetWindows(u16 xStar, u16 yStar,u16 xEnd,u16 yEnd)
Line 53: Line 50:


*'''Lcd_WriteData_16Bit'''
*'''Lcd_WriteData_16Bit'''
 
:This function is to set the pixel color value into GRAM, and then display it
This function is to set the pixel color value into GRAM, and then display it
:Examples are as follows (ILI9341 as an example)
 
Examples are as follows (ILI9341 as an example)
{{code|1=
{{code|1=
void Lcd_WriteData_16Bit(u16 Data)
void Lcd_WriteData_16Bit(u16 Data)
Line 69: Line 64:


*'''LCD_DrawPoint'''
*'''LCD_DrawPoint'''
 
:In fact, the LCD_SetWindows function and the Lcd_WriteData_16Bit function are used to display a pixel.
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)
 
Examples are as follows (ILI9341 as an example)
{{code|1=
{{code|1=
void LCD_DrawPoint(u16 x,u16 y)
void LCD_DrawPoint(u16 x,u16 y)
Line 81: Line 74:
}}
}}


== English modulo ==
== <font color="blue">English character modulo</font> ==
 
*'''[[#English character modulo|Important note]]'''
The function is defined as follows:
:1.Because in the program, the English characters that need to be displayed are searched according to the ASCII offset,
::so the entire set of ASCII characters needs to be modeled.
:2.'''If you do not need to use a character, you can set the modulo data of the character to {0}''',
::as shown in the following example (take 6x8 size characters as an example)
{{code|1=
{{code|1=
void LCD_ShowChar(u16 x,u16 y,u16 fc, u16 bc, u8 num,u8 size,u8 mode)
const unsigned char asc2_0806[95][8]={
{
   ...  //This example is omitted, the actual application needs to be added
   u8 temp;
{0},/*"2",18*/ Do not use number 2
  u8 pos,t;
{0x00,0x00,0x78,0xB0,0x08,0x88,0x70,0x00},/*"3",19*/
  u16 colortemp=POINT_COLOR;
{0x00,0x00,0x30,0x50,0x90,0x78,0x10,0x00},/*"4",20*/
  num=num-' ';//Get the offset value
{0},/*"5",21*/ Do not use number 5
  LCD_SetWindows(x,y,x+size/2-1,y+size-1);//Set a single text display window
{0x00,0x00,0x70,0x80,0xF8,0x88,0x70,0x00},/*"6",22*/
  if(!mode) //Non-superimposed way
{0},/*"7",23*/ Do not use number 7
  {
{0x00,0x00,0xF8,0x88,0x70,0x88,0x78,0x00},/*"8",24*/
      for(pos=0;pos<size;pos++)
{0},/*"9",25*/ Do not use number 9
      {
   ..//This example is omitted, the actual application needs to be added
  if(size==12)
<nowiki>}</nowiki>
          {
              temp=asc2_1206[num][pos];//Call 1206 font
  }
          else
          {
              temp=asc2_1608[num][pos]; //Call 1608 font
          }
  for(t=0;t<size/2;t++)
          {                
              if(temp&(0x80>>t))
              {
                Lcd_WriteData_16Bit(fc);
              }  
      else
              {
                Lcd_WriteData_16Bit(bc);
      }
          }
      }
  }
  else//Superposition method
  {
      for(pos=0;pos<size;pos++)
      {
  if(size==12)
          {
              temp=asc2_1206[num][pos];//Call 1206 font
  }
          else
          {
              temp=asc2_1608[num][pos]; //Call 1608 font
  }
  for(t=0;t<size/2;t++)
          { 
      POINT_COLOR=fc;             
      if(temp&(0x80>>t))
              {
                LCD_DrawPoint(x+t,y+pos);//Draw a point 
      }
          }
      }
   }
  POINT_COLOR=colortemp;
  LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);//Restore window to full screen   
}
}}
}}
:3.The ASCII characters are as follows (the first space is also included):
::ASCII characters: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~
:4.The English modulo data fonts are all '''Default'''


This function contains two English font settings of 12x6 and 16x8.
*'''The different sizes of English character modulo description'''
:*[http://www.lcdwiki.com/6x8_English_font_modulo_description '''6x8 English font modulo description''']
:*[http://www.lcdwiki.com/6x12_English_font_modulo_description '''6x12 English font modulo description''']
:*[http://www.lcdwiki.com/8x16_English_font_modulo_description '''8x16 English font modulo description''']
:*[http://www.lcdwiki.com/12x24_English_font_modulo_description '''12x24 English font modulo description''']
:*[http://www.lcdwiki.com/16x32_English_font_modulo_description '''16x32 English font modulo description''']
:*[http://www.lcdwiki.com/24x48_English_font_modulo_description '''24x48 English font modulo description''']
:*[http://www.lcdwiki.com/32x64_English_font_modulo_description '''32x64 English font modulo description''']
:*[http://www.lcdwiki.com/48x96_English_font_modulo_description '''48x96 English font modulo description''']
:*[http://www.lcdwiki.com/64x128_English_font_modulo_description '''64x128 English font modulo description''']


Two display modes are included: overlay mode and non-overlay mode.


Overlay mode: the font does not have a background color, and is directly superimposed and displayed on the original display content.
== <font color="blue">Chinese character modulo</font> ==
*'''[[#Chinese character modulo|Important note]]'''
:1.When displaying Chinese characters, the modulo data is obtained by querying the GBK code that needs to display Chinese characters;
:2.After the Chinese character is successfully modulo, the corresponding relationship between the Chinese character GBK code and the modulo data is saved through an array of structures.
:3.The structure is defined as follows:
{{code|1=
//16x16 Chinese font structure definition
typedef struct
{
      unsigned char Index[2]; //Store Chinese character GBK code
      char Msk[32]; //Store Chinese character modulo data
}typFNT_GB16;  //Structure name can be defined by yourself


Non-overlay mode: The font has a background color, which will overwrite the original display.
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
 
//24x24 Chinese font structure definition
== Chinese modulo ==
typedef struct
'''A. 16x16 Chinese font display function is defined as follows:'''
{{code|1=
void GUI_DrawFont16(u16 x, u16 y, u16 fc, u16 bc, u8 *s,u8 mode)
{
{
  u8 i,j;
       unsigned char Index[2]; //Store Chinese character GBK code
  u16 k;
      char Msk[72]; //Store Chinese character modulo data
  u16 HZnum;
}typFNT_GB24; //Structure name can be defined by yourself
  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-superimposed way
    {
  if(tfont16[k].Msk[i]&(0x80>>j))
                          {
                              Lcd_WriteData_16Bit(fc);
                          }  
                          else
                          {
                              Lcd_WriteData_16Bit(bc);
  }
    }
    else //Superposition method
    {
  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
}
}}


'''B. 24x24 Chinese font display function is defined as follows:'''
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
{{code|1=
//32x32 Chinese font structure definition
void GUI_DrawFont24(u16 x, u16 y, u16 fc, u16 bc, u8 *s,u8 mode)
typedef struct
{
{
    u8 i,j;
      unsigned char Index[2]; //Store Chinese character GBK code
    u16 k;
      char Msk[128]; //Store Chinese character modulo data
    u16 HZnum;
}typFNT_GB32; //Structure name can be defined by yourself
    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-superimposed way
{
                              if(tfont24[k].Msk[i]&(0x80>>j))
                              {
                                  Lcd_WriteData_16Bit(fc);
      }
                              else
                              {
                                  Lcd_WriteData_16Bit(bc);
      }
                        }
        else //Superposition method
        {
      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
}
}}


'''C. 32x32Chinese font display function is defined as follows:'''
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
{{code|1=
//48x48 Chinese font structure definition
void GUI_DrawFont32(u16 x, u16 y, u16 fc, u16 bc, u8 *s,u8 mode)
typedef struct
{
{
    u8 i,j;
      unsigned char Index[2]; //Store Chinese character GBK code
    u16 k;
      char Msk[288]; //Store Chinese character modulo data
    u16 HZnum;
}typFNT_GB48; //Structure name can be defined by yourself
    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-superimposed way
  {
if(tfont32[k].Msk[i]&(0x80>>j))
                                {
      Lcd_WriteData_16Bit(fc);
                                }
else
                                {
                                      Lcd_WriteData_16Bit(bc);
}
                          }
  else //Superposition method
  {
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
}
}}
}}


The above three functions are display settings for 16x16, 24x24, 32x32 Chinese characters.
*'''The different sizes of Chinese modulo description'''
 
:*[http://www.lcdwiki.com/16x16_Chinese_font_modulo_description '''16x16 Chinese font modulo description''']
Two display modes are included: overlay mode and non-overlay mode.
:*[http://www.lcdwiki.com/24x24_Chinese_font_modulo_description '''24x24 Chinese font modulo description''']
 
:*[http://www.lcdwiki.com/32x32_Chinese_font_modulo_description '''32x32 Chinese font modulo description''']
Overlay mode: the font does not have a background color, and is directly superimposed and displayed on the original display content.
:*[http://www.lcdwiki.com/48x48_Chinese_font_modulo_description '''48x48 Chinese font modulo description''']
 
Non-overlay mode: The font has a background color, which will overwrite the original display.


[[#top|BACK TO TOP]]
[[#top|BACK TO TOP]]

Latest revision as of 14:05, 12 June 2023

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
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、48x48
English (character x word height):6x8、6x12、8x16、12x24、16x32、24x48(The corresponding font size needs to be set to respectively12x8、12x12、16x16、24x24、32x32、48x48)
Modify the dot matrix size can be set according to requirements, generally set to 0
  • Font option setting
There are many situations in the Chinese and English 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.
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); 
}

English character modulo

1.Because in the program, the English characters that need to be displayed are searched according to the ASCII offset,
so the entire set of ASCII characters needs to be modeled.
2.If you do not need to use a character, you can set the modulo data of the character to {0},
as shown in the following example (take 6x8 size characters as an example)
const unsigned char asc2_0806[95][8]={
   ...  //This example is omitted, the actual application needs to be added
{0},/*"2",18*/ Do not use number 2
{0x00,0x00,0x78,0xB0,0x08,0x88,0x70,0x00},/*"3",19*/
{0x00,0x00,0x30,0x50,0x90,0x78,0x10,0x00},/*"4",20*/
{0},/*"5",21*/ Do not use number 5
{0x00,0x00,0x70,0x80,0xF8,0x88,0x70,0x00},/*"6",22*/
{0},/*"7",23*/ Do not use number 7
{0x00,0x00,0xF8,0x88,0x70,0x88,0x78,0x00},/*"8",24*/
{0},/*"9",25*/ Do not use number 9
   ...  //This example is omitted, the actual application needs to be added
}
3.The ASCII characters are as follows (the first space is also included):
ASCII characters: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~
4.The English modulo data fonts are all Default
  • The different sizes of English character modulo description


Chinese character modulo

1.When displaying Chinese characters, the modulo data is obtained by querying the GBK code that needs to display Chinese characters;
2.After the Chinese character is successfully modulo, the corresponding relationship between the Chinese character GBK code and the modulo data is saved through an array of structures.
3.The structure is defined as follows:
//16x16 Chinese font structure definition
typedef struct 
{
       unsigned char Index[2];	//Store Chinese character GBK code
       char Msk[32]; //Store Chinese character modulo data
}typFNT_GB16;  //Structure name can be defined by yourself

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
//24x24 Chinese font structure definition
typedef struct 
{
       unsigned char Index[2];	//Store Chinese character GBK code
       char Msk[72]; //Store Chinese character modulo data
}typFNT_GB24;  //Structure name can be defined by yourself

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
//32x32 Chinese font structure definition
typedef struct 
{
       unsigned char Index[2];	//Store Chinese character GBK code
       char Msk[128]; //Store Chinese character modulo data
}typFNT_GB32;  //Structure name can be defined by yourself

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
//48x48 Chinese font structure definition
typedef struct 
{
       unsigned char Index[2];	//Store Chinese character GBK code
       char Msk[288]; //Store Chinese character modulo data
}typFNT_GB48; //Structure name can be defined by yourself
  • The different sizes of Chinese modulo description

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