ssd0323.c

这个是用来控制以ssd0323为主控芯片的显示屏的程序。在这个程序是以串行接口控制屏的

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};

void delay(unsigned int param)
{
   int i;

   for(;param>0;param--)
	for(i=0;i<1200;i++);
}

void delayms(unsigned char msec)
{
	unsigned int i;
	
	for( ; msec>0 ; msec--)
	{
		for( i=0 ; i<300 ; i++) ;
	}
}

void delays(unsigned int sec)
{
	unsigned char i;
	unsigned int  j;
	
	for( ; sec>0 ; sec--)
	{
		for( i=0 ; i<200 ; i++)
		{
			for( j=0 ; j<999 ; j++) ;
		}
	}
}

void delay10ms(unsigned int second) {

  unsigned int i;
     
  while(second--!=0)   
    for (i=0; i<840; i++)
      ;
  }

void data_out_char(unsigned char set_db)  //serial interface---write display data
{
    unsigned char mask;
	int j;

	RST=1;_CS=1;RS=1; SCLK=1;

   for(j=0, mask=0x80; j<8; j++, mask>>=1 )
   {   
       RST=1;_CS=0;RS=1; 
       SCLK=0;
       if( (set_db & mask) != 0 )
		   SDIN=1;
       else 
		   SDIN=0;
       RST=1;_CS=0;RS=1; SCLK=1;
      
   }
   RST=1;_CS=1;RS=1; SCLK=1;
 }


void command_out1(unsigned char set_db)  //serial interface---write command byte
{
     unsigned char mask;
	int j;

	RST=1;_CS=1;RS=0; SCLK=1;

   for(j=0, mask=0x80; j<8; j++, mask>>=1 )
   {   
       RST=1;_CS=0;RS=0; 
       SCLK=0;
       if( (set_db & mask) != 0 )
       		SDIN=0x01;
       else 
       		SDIN=0x00;
       RST=1;_CS=0;RS=0; SCLK=1;
      
   }
   RST=1;_CS=1;RS=0; SCLK=1;
 
}
void command_out2(unsigned char set_db)  //serial interface---write command byte
{
     unsigned char mask;
	int j;

	RST=1;_CS=1;RS=0; SCLK=1;

   for(j=0, mask=0x80; j<8; j++, mask>>=1 )
   {   
       RST=1;_CS=0;RS=0; 
       SCLK=0;
       if( (set_db & mask) != 0 )
       		SDIN=0x01;
       else 
       		SDIN=0x00;
       RST=1;_CS=0;RS=0; SCLK=1;
      
   }
   RST=1;_CS=1;RS=0; SCLK=1;
 
}

void system_init(void)
{
  P0=0xff;P1=0xff;
  RST=1;_CS=1;
  RST=0;
  delayms(50);
  RST=1;
  delayms(50);