new0001.h

带有LCD

#include <reg51.h> 
#include <intrins.h>
sbit dc=0xa0; /*P2.0 LCD 的RS 21*/ 
sbit rw=0xa1; /*P2.1 LCD 的R/W 22*/ 
sbit cs=0xa4; /*P2.4 LCD 的E 25*/ 
sfr lcdbus=0x80; /*p0LCD 数据 D0=P0.0*/ 
unsigned int sys10mscounter; 
unsigned char syslimitcounter; 
char path1[8]={0x00,0x1f,0x00,0x1f,0x00,0x1f,0x00,0x1f};/*自定义符号 横1*/ 
char path2[8]={0x1f,0x00,0x1f,0x00,0x1f,0x00,0x1f,0x00};/*自定义符号 横2*/ 
char pats1[8]={0x15,0x15,0x15,0x15,0x15,0x15,0x15,0x15};/*自定义符号 竖1*/ 
char pats2[8]={0x0a,0x0a,0x0a,0x0a,0x0a,0x0a,0x0a,0x0a};/*自定义符号 竖2*/ 
void soft_nop()
{} 
void soft_10ms()/***********12MHZ 提供10MS 软件延时************/ 
{ 
	register int i; 
	for(i=0;i<711;i++);
} 
void soft_20ms()/***********12MHZ 提供20MS 软件延时************/ 
{ 
	soft_10ms(); 
	soft_10ms(); 
} 
void hard_10ms(unsigned int delaytime) /*基于10MS 的硬件延时*/ 
{ 
	sys10mscounter=delaytime; 
	while(sys10mscounter); 
} 
unsigned char data lcdcounter; 
bit lcdusing1,lcdusing2; 
bit lcd_checkbusy()/*检查LCD 忙*/ 
{ 
	register lcdstate; 
	dc=0; /*dc=1为数据,=0 为命令.*/ 
	rw=1; /*rw=1为读,=0 为写.*/ 
	cs=1; /*cs=1选通.*/ 
	soft_nop(); 
	lcdstate=lcdbus; 
	cs=0; 
	return((bit)(lcdstate&0x80)); 
} 
void lcd_wrcmd(unsigned char lcdcmd) /*写LCD 命令*/ 
{ 
	lcdusing1=1; 
	while(lcd_checkbusy()); 
	lcdbus=lcdcmd; 
	dc=0; /*dc=1为数据,=0 为命令.*/ 
	rw=0; /*rw=1为读,=0 为写.*/ 
	cs=1; /*cs=1选通.*/ 
	soft_nop(); 
	cs=0; 
	lcdbus=0xff; 
	lcdusing1=0; 
} 
void lcd_moveto(char position) /*移动光标到指定位.0-79*/ 
{ 
	register cmd=0x80; 
	lcdcounter=position; 
	if (position > 59) 
		position += 0x18; 
	else
	{ 
		if (position > 39)
			position -= 0x14; 
		else 
		{ 
			if (position > 19)
			position += 0x2c; 
		} 
	} 
	cmd=cmd|position;
 	lcd_wrcmd(cmd); 
 } 
 void lcd_wrdata(char lcddata) /*在当前显示位置显示数据*/ 
 { 
 	char i; 
 	lcdusing2=1; 
 	while(lcd_checkbusy()); 
 	if(lcdcounter==20)
 	{ 
 		lcd_moveto(20); 
 		while(lcd_checkbusy()); 
 	} 
 	if(lcdcounter==40)
 	{ 
 		lcd_moveto(40); 
 		while(lcd_checkbusy()); 
 	} 
 	if(lcdcounter==60)
 	{ 
 		lcd_moveto(60); 
 		while(lcd_checkbusy()); 
 	} 
 	if(lcdcounter==80)
 	{ 
 		lcd_moveto(0); 
 		while(lcd_checkbusy()); 
 		lcdcounter=0; 
 	} /*为通用而如此*/ 
 	lcdcounter++; 
 	lcdbus=lcddata; 
 	dc=1; /*dc=1为数据,=0 为命令.*/ 
 	rw=0; /*rw=1为读,=0 为写.*/ 
 	cs=1; /*cs=1选通.*/ 
 	soft_nop(); 
 	cs=0; 
 	lcdbus=0xff; 
 	lcdusing2=0; 
 } 
 void lcd_string(char *strpoint) /*在当前显示位置显示LCD 字符串*/ 
 { 
 	register i=0; 
 	while(strpoint[i]!=0)
 	{
		lcd_wrdata(strpoint[i]); 
		i++; 
	} 
} 
void lcd_init()/*初始化*/ 
{ 
	lcd_wrcmd(0x38); /*设置8 位格式,2 行,5*7*/ 
	lcd_wrcmd(0x0c); /*整体显示,关光标,不闪烁*/ 
	lcd_wrcmd(0x06); /*设定输入方式,增量不移位*/ 
	lcd_wrcmd(0x01); /*清除显示*/ 
	lcdcounter=0; 
} 
void lcd_cls()/*清除显示*/ 
{ 
	lcd_wrcmd(0x01); 
	lcdcounter=0; 
} 
void timer0(void) interrupt 1 /*T0 中断*/ 
{ TH0=0xd8; /*12M,10ms*/ 
TL0=0xf6; 
TR0=1; 
if(sys10mscounter!=0)
sys10mscounter--; /*定时器10ms*/ 
if(syslimitcounter!=0)
syslimitcounter--; /*定时器10ms*/ 
} 
main() 
{ 
	unsigned char j; 
	IE=0;
	P0=0xff;
	P1=0xff;
	P2=0xff;
	P3=0xff; /*初始化T*/ 
	lcd_init();
	soft_20ms(); 
	TMOD=0x51; 
	TH0=0xd8; /*12M,10ms*/ 
	TL0=0xf6; 
	TR0=1;
	ET0=1;
	EA=1; 
	while(1) 
	{ /*全黑横一横二竖一竖二U Q ABCD... */ 
		lcd_init(); /*全黑*/ 
		for(j=0;j<80;j++)
		{
			lcd_wrdata(0xff);
		} 
		hard_10ms(50); 
		lcd_init(); /*横一可参考自行设计符号*/ 
		lcd_wrcmd(0x40); 
		for(j=0;j<8;j++)
			lcd_wrdata(path1[j]); 
		for(j=0;j<100;j++)
			lcd_wrdata(0); 
		hard_10ms(50); 
		lcd_init(); /*横二*/
		lcd_wrcmd(0x40); 
		for(j=0;j<8;j++)
			lcd_wrdata(path2[j]); 
		for(j=0;j<100;j++)
			lcd_wrdata(0); 
		hard_10ms(50); 
		lcd_init(); /*竖一*/ 
		lcd_wrcmd(0x40); 
		for(j=0;j<8;j++)
			lcd_wrdata(pats1[j]); 
		for(j=0;j<100;j++)
			lcd_wrdata(0); 
		hard_10ms(50); 
		lcd_init(); /*竖二*/ 
		lcd_wrcmd(0x40); 
		for(j=0;j<8;j++)
			lcd_wrdata(pats2[j]); 
		for(j=0;j<100;j++)
			lcd_wrdata(0); 
		hard_10ms(50); 
		lcd_init(); 
		lcd_string("UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUU"); 
		hard_10ms(50); 
		lcd_init(); 
		lcd_string("QQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ QQQQQ"); 
		hard_10ms(50); 
		lcd_init(); 
		lcd_string("ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz0123456789+-! #$%&?"); 
		hard_10ms(50); 
	}
}