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#include<reg52.h>
typedef unsigned char uint8;
typedef unsigned int uint16;
sbit rs=P2^6;
sbit rw=P2^5;
sbit e=P2^7;
uint8 a[16]="perchin designed";
uint8 b[27]="welcome to the world of mcu";
void delay(uint16 i) //1us
{
while(i--);
}
void wrc(uint8 c)
{
delay(1000);
rs=0;
rw=0;
e=0;
P0=c;
e=1;
delay(10);
e=0;
/*
P0=c<<4;
e=1;
e=0;*/ //四位的LCD要加上
}
void wrd(uint8 dat)
{
delay(1000);
rs=1;
rw=0;
e=0;
P0=dat;
e=1;
delay(10);
e=0;
/*
P0=dat<<4;
e=1;
e=0;*/ //四位的LCD要加上
rs=0;
}
void init()
{
delay(1000);
/*wrc(0x32);
wrc(0x28);
wrc(0x28); */ //四位的LCD要加上
wrc(0x38);
wrc(0x38);
wrc(0x38);
wrc(0x0c);
wrc(0x01);
}
void display()
{
uint8 i;
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滚动显示.zip
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程序
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