ylf240128a.c

自己编制的北京友力发公司的液晶显示模块驱动程序

   RD_SET; 
   CD_CLR; 
   NOP();NOP();NOP(); 
   return data; 
} 

void WriteCmd(uchar command) 
{ 
   while ( (ReadSta()&0x03) !=0x03); 
   RD_SET; 
   CD_SET; 
   OUT_DIR; 
   DDRB=0xFF; 
   PORTB=command; 
//   NOP();NOP();NOP();    
   WR_CLR; 
   NOP();NOP();NOP(); 
   WR_SET; 
   CD_CLR; 

} 

void WriteData(uchar data) 
{ 
   while ( (ReadSta()&0x03) !=0x03); 
   RD_SET; 
   CD_CLR; 
   OUT_DIR; 
   DDRB=0xFF; 
   PORTB=data; 
//   NOP();NOP();NOP();    
   WR_CLR; 
   NOP();NOP();NOP(); 
   WR_SET; 
} 
void WrTwoParCmd(uchar par1,uchar par2,uchar command) 
{ 
   WriteData(par1); 
   WriteData(par2); 
   WriteCmd(command); 
} 
void WrOneParCmd(uchar par,uchar command) 
{ 
   WriteData(par); 
   WriteCmd(command); 
} 

void ClrRam(uint data) 
{ 
   uint i; 

   WrTwoParCmd(0x00,0x00,ADPSET); 
 //  WrTwoParCmd(0x00,0x00,ADPSET);//No Repeat--False Code  
   while((ReadSta()&0x08)!=8); 
   WriteCmd(AWRON);    
   for(i=0;i<(LCDCOLUMN*LCDLINE);i++) 
      WriteData(data); 
   WriteCmd(AWROFF);    
       
} 

void WrCGRAM(void) 
{ 
   uint i,j,len; 
       
   WrTwoParCmd(0x00,0x00,OFFSET); 
   WrTwoParCmd(0x00,0x04,ADPSET); 
   while((ReadSta()&0x08)!=8); 
   WriteCmd(AWRON); 
   for(i=0;i<10;i++) {            //8*8 
      for(j=0;j<8;j++) 
         WriteData(GrCode[i*8+j]); 
   } 
   len=(uchar)sizeof(ChCode);      //16*16 
   for (j=0;j<len;j++) { 
      for(i=0;i<16;i+=2)  
         WriteData(ChCode[j][i]); 
      for(i=1;i<16;i+=2)  
         WriteData(ChCode[j][i]); 
      for(i=16;i<32;i+=2)  
         WriteData(ChCode[j][i]); 
      for(i=17;i<32;i+=2)  
         WriteData(ChCode[j][i]);          

   } 
   WriteCmd(AWROFF); 
    
} 

void LcdInit(void) 
{ 
    
   CE_CLR; 
   FS_CLR; 
   WR_SET;RD_SET;CD_SET; 
   RST_CLR; 
   delay(1000); 
   RST_SET; 
    
   ClrRam(0x00); 
       
   WrTwoParCmd(0x00,0x00,TXHOME); 
   WrTwoParCmd(0x1E,0x00,TXAREA); 
   WrTwoParCmd(0x00,0x08,GRHOME); 
   WrTwoParCmd(0x1E,0x00,GRAREA);    
   WrTwoParCmd(0x00,0x00,CUPSET); 
   WriteCmd(0xA0); 
   WriteCmd(0x80); 
   WriteCmd(0x97);    
    
//   ClrRam(0x00); 
    
   WrCGRAM(); 

   WrTwoParCmd(0x00,0x00,ADPSET); 
   WrTwoParCmd(0x00,0x00,CUPSET); 
} 

//Character Code Display--8*8 
//x:0~29;  y:0~15  
void WrCharCode(uchar x,uchar y,uchar charcode)  
{  
     uint address;  
     address=y*LCDCOLUMN+x;  
     WrTwoParCmd((uchar)(address),(uchar)(address>>8),ADPSET);  //Set Display Ram Address  
     WrOneParCmd(charcode,0xC4);  //Load Character Code,Address Non Variable  
   address+=0x800;            //Text Attribute mode:blink 
   WrTwoParCmd((uchar)(address),(uchar)(address>>8),ADPSET);   
     WrOneParCmd(0x08,0xC4); 
}  

uchar AsctoCharCode(uchar asc) 
{ 
   uchar charcode; 
   charcode=(asc<20)? 0:(asc-0x20); 
   return charcode; 
} 

void WrCharStr(uchar x,uchar y,char charstr[]) 
{ 
   uchar i,len; 
    
   len=strlen(charstr); 
   for(i=0;i<len;i++) { 
      WrCharCode(x,y,AsctoCharCode(charstr[i]) ); 
      if (x<LCDCOLUMN)x++; 
      else 
         { 
         y++; 
         x=0; 
         } 
   } 
} 
void WrNumeral(uchar x,uchar y,uchar grade,uint numeral) 
{ 
   uchar i,g[5]; 
   uchar str[5]; 

   for(i=0;i<5;i++) { 
      g[i]=numeral%grade; 
      numeral/=grade; 
      str[4-i]=(g[i]>9)?(g[i]+0x37):(g[i]+0x30); 
   } 
   for(i=0;i<5;i++) {               //clear high bit 0 
      if (str[i]==0x30 && i!=4)  
         str[i]=0x00; 
      else break; 
   } 
   for(i=0;i<5;i++) { 
      WrCharCode(x,y,AsctoCharCode(str[i]) ); 
      WrCharCode(x,y+1,0x83); 
      if (x<LCDCOLUMN)x++; 
      else { 
         y++; 
         x=0; 
      } 
   } 
    
} 
//Define Character Code Display---16*16 
//x:0~29;  y:0~15  
void WrDefChar(uchar x,uchar y,uchar defcodenum) 
{ 
   uint address,cgramnum; 
   address=address=y*30+x; 
   cgramnum=0x8A+(defcodenum<<2); 
   WrTwoParCmd((uchar)(address),(uchar)(address>>8),ADPSET);  //Set Display Ram Address  
     WrOneParCmd(cgramnum++,0xC0); 
   WrOneParCmd(cgramnum++,0xC0); 
   address+=30; 
   WrTwoParCmd((uchar)(address),(uchar)(address>>8),ADPSET);  //Set Display Ram Address 
   WrOneParCmd(cgramnum++,0xC0); 
   WrOneParCmd(cgramnum,0xC0); 
} 

void WrDefCharStr(uchar x,uchar y,uchar defcharstr[],uchar len) 
{ 
   uchar i; 
    
   for(i=0;i<len;i++) { 
      WrDefChar(x,y,defcharstr[i]); 
      if (x<LCDCOLUMN)x+=2; 
      else 
         { 
         y+=2; 
         x=0; 
         } 
   } 
} 

 

void main (void) 
{ 
   uint i,j; 
   char charstr[30]; 
   uchar defcharstr[6]={BLANK}; 
   uint tt=0; 

//   SP=0x45f; 
   McuInit(); 
   LcdInit(); 
    
   strcpy(charstr,"CHANGSHA HUNAN CHINA"); 
   WrCharStr(5,0,charstr); 

   defcharstr[0]=ONE; 
   defcharstr[2]=JIAN; 
   defcharstr[3]=KONG; 
   defcharstr[4]=HUA; 
   defcharstr[5]=MIAN; 
   WrDefCharStr(2,2,defcharstr,sizeof(defcharstr)); 
   defcharstr[0]=TWO; 
   defcharstr[2]=CAN; 
   defcharstr[3]=SHU; 
   defcharstr[4]=SE1; 
   defcharstr[5]=ZHI; 
   WrDefCharStr(2,4,defcharstr,sizeof(defcharstr)); 
   defcharstr[0]=THREE; 
   defcharstr[2]=XIN1; 
   defcharstr[3]=HAO; 
   defcharstr[4]=CE; 
   defcharstr[5]=SHI; 
   WrDefCharStr(2,6,defcharstr,sizeof(defcharstr)); 
   defcharstr[0]=FOUR; 
   defcharstr[2]=HUA1; 
   defcharstr[3]=YANG; 
   defcharstr[4]=BIAN; 
   defcharstr[5]=ZHI1; 
   WrDefCharStr(2,8,defcharstr,sizeof(defcharstr)); 
   defcharstr[0]=FIVE; 
   defcharstr[2]=QUAN; 
   defcharstr[3]=XIAN; 
   defcharstr[4]=BLANK; 
   defcharstr[5]=BLANK;    
   WrDefCharStr(2,10,defcharstr,sizeof(defcharstr)); 
    
   while (1) { 

      i=tt/30; 
      j=tt%30; 
      WrTwoParCmd(j,i,CUPSET); 
      WrNumeral(20,8,10,tt); 
      WrNumeral(20,10,16,tt); 
      delay(1000); 
      if (tt<480)tt++;    
      else tt=0; 
       
       
   } 
} 
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         END 
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