tft1602.c

太wangba啦

/******************************************************************** 
TITLE:			TFT1602.c
AUTHOR:			GanGuoqiang
DISCRIPTION: 	TFT1602 USING P2 P1:3,4,5
DATE :			2008.11.23
***********************************************************************/
//#include "COMMON.c"
#include "reg51.h"
#include "STRING.H"
 w_com(unsigned char);
 w_data(unsigned char dat);
 displaystr(unsigned char x,unsigned char y,char z[]);  // extern
displaychr(unsigned char x,unsigned char y,char z);	 //extern 
 delayms(unsigned char ms);
sbit lcden=P1^3;  
sbit rw=P1^4;
sbit rs=P1^5;
/******************************************************************** 

***********************************************************************/
 init1602()
{
	w_com(0x38);
	delayms(20);
	w_com(0x08);
	delayms(20);
	w_com(0x01);
	delayms(200) ;
/*	delayms(200) ;
	delayms(200) ;
	delayms(200) ;*/
	w_com(0x06);
	delayms(20);	
	w_com(0x0e); //movable;
	delayms(20);

	}
 w_com(unsigned char com)
{
P2=com ;
rs=0x0;
rw=0x0;
lcden=0x0;
// delayms(1);
lcden=0x01;
// delayms(1); 
lcden=0x0;
}
  w_data(unsigned char dat)
{
P2=dat ;
rs=0x1;
rw=0x0;
lcden=0x0;
//delayms(1);	
lcden=0x01;
//delayms(1);	
lcden=0x0;
}
  displaychr(unsigned char x,unsigned char y,char z)
{	
	//x&=0x0f;
	//y&=0x01;
 	if(y) x|=0x40;
	x|=0x80;
	w_com(x);
	
	w_data(z);

}
/* displaystr(unsigned char x,unsigned char y,char z[])
{	
	unsigned int num,i,j=0;
	num=strlen(z);
	for(i=0;i<num;i++)
	{
		//if(i>0x0f)
		
		j=x+i;
		j%=0x0f;
		if(j==0) w_com(0x01);
		if(y) j|=0x40;
		j|=0x80;
		w_com(j);
		w_data(z[i]);

	 }
}*/
displaystr(unsigned char x,unsigned char y,char z[])
{	
	unsigned int num,i,j=0;
	num=strlen(z);
	for(i=0;i<num;i++)
	{
		
		j=x+i;
		if(j>=0x0f)
		y=1;
		j%=0x0f;// i%=0x10;j&=0X0F;//
		//if(j==0) w_com(0x01);
		if(y) j|=0x40;
		j|=0x80;
		w_com(j);
		w_data(z[i]);

	 }
}