?? lcd1602.c
字號:
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit rs=P1^0;
sbit rw=P1^1;
sbit en=P1^2;
uchar code a[]="I Like AT89S52";
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
void write1602_command(uchar command)//寫指令子函數
{
rs=0;
rw=0;
P2=command;
delay(1);
en=1;
delay(2);
en=0;
}
void write1602_data(uchar date)//寫數據子函數
{
rs=1;
rw=0;
P2=date;
delay(1);
en=1;
delay(2);
en=0;
}
void init()
{
en=0;
rw=0;
write1602_command(0x38);
write1602_command(0x01);
write1602_command(0x0c);
write1602_command(0x06);
write1602_command(0x80);
}
void main()
{ uchar i,temp=0,ge,shi,bai;
init();
write1602_command(0x80);
for(i=0;i<14;i++)
{
write1602_data(a[i]);
delay(6);
}
while(1)
{
bai=temp/100;
shi=temp%100/10;
ge=temp%10;
write1602_command(0x80+0x40+6);
write1602_data(0x30+bai);
write1602_data(0x30+shi);
write1602_data(0x30+ge);
temp++;
if(temp>200)
temp=0;
delay(800);
}
}
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