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標(biāo)題: 51單片機(jī)仿真廣告牌代碼 [打印本頁]

作者: 3232090712202 時間: 2024-9-20 16:32
標(biāo)題: 51單片機(jī)仿真廣告牌代碼
#include<reg51.h>
#include<intrins.h>
sbit RS=0xb0;
sbit RW=0xb1;
sbit E=0xb2;
void lcd_w_cmd(unsigned char com);
void lcd_w_dat(unsigned char dat);
unsigned char lcd_r_start();
void lcd_int();
void delay(unsigned int i);
void delay1();
void main()
{
unsigned char lcd[]="FU JIAN";
unsigned char i;
P1=0xff;
lcd_int();
delay(255);
for(i=0;lcd[i]!='\0';i++)
{ lcd_w_dat(lcd[i]);
delay(200);}
while(1);
}
void delay1()
{
_nop_();
_nop_();
_nop_();
}
void lcd_int()
{
lcd_w_cmd(0x3c);
lcd_w_cmd(0x0e);
lcd_w_cmd(0x01);
lcd_w_cmd(0x06);
lcd_w_cmd(0x80);
}
unsigned char lcd_r_start()
{
unsigned char s;
RW=1;
delay1();
RS=0;
delay1();
E=1;
delay1();
s=P1;
delay1();
E=0;
delay1();
RW=0;
delay1();
return(s);
}
void lcd_w_cmd(unsigned char com)
{
unsigned char i;
do{
i=lcd_r_start();
i&=0x80;
delay(2);
}
while(i!=0);
RW=0;
delay1();
RS=0;
delay1();
E=1;
delay1();
P1=com;
delay1();
E=0;
delay1();
RW=1;
delay1();
delay(255);
}
void lcd_w_dat(unsigned char dat)
{unsigned char i;
do{
i=lcd_r_start();
i&=0x80;
delay(2);
}while(i!=0);
RW=0;
delay1();
RS=1;
delay1();
E=1;
delay1();
P1=dat;
delay1();
E=0;
delay1();
RW=1;
delay(255);
}
void delay(unsigned int i)
{unsigned int k;
for(k=0;k<i;k++);
}

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