C51数码管显示改为1602LCD显示，求改变后的代码，原代码如下
你这是实物开发板吧，而且用的是STC的单片机，内部有A/D转换电路的。
要改成LCD1602，那要看你的开发板上的LCD1602是怎么接的，只要改变后的代码没用的，这代码要与实物要符才行，否则给你代码，在开发板上也不会正常运行的，那个LCD1602也是不会显示的。
你要给出开发板上的LCD1602连接图。
C语言编程,数码管显示时钟跟设置闹钟的程序？
给个我以前写的程序，你参考参考，我这个使用1602液晶写的，显示方式需要改改
#include 1602yejing.h
sbit key1=P3^2; //选择调整位置按钮
sbit key2=P3^3; //加一按钮
sbit key3=P3^4; //减一按钮
sbit key4=P3^5; //定时按钮
char shi,fen,miao,T_shi,T_fen,T_miao;
uchar count,keynum,flag;
uchar code table1[]= 1;
uchar code table2[]= 10:30:30;
uchar code table3[]=input the timing;
uchar code table4[]= 00:00:00;
void write_sfm(uchar add,uchar date)
{
uchar shi,ge;
shi=date/10;
ge=date%10;
write_com(0xc0+add);
write_date(shi+'0');
write_date(ge+'0');
}
void init()
{
uchar num;
shi=10;
fen=30;
miao=30;
P1=0xfe;
write_com(0x38);//显示模式
write_com(0x0c);//不显示光标，光标不闪烁
write_com(0x06);//地址指针加一，光标加一
write_com(0x01);//清屏
write_com(0x80);
for(num=0;num<16;num++)
{
write_date(table1[num]);
delay(5);
}
write_com(0xc0);
for(num=0;num<12;num++)
{
write_date(table2[num]);
delay(5);
}
TMOD=0x01;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
EA=1;
ET0=1;
TR0=1;
}
void keyscan()
{
uchar i;
if(key4==0)
{
delay(5);
if(key4==0)
{
while(!key4);
flag=1;
write_com(0x80);
for(i=0;i<16;i++)
{
write_date(table3[i]);
delay(5);
}
write_com(0xc0);
for(i=0;i<12;i++)
{
write_date(table4[i]);
delay(5);
}
}
}
if(key1==0)
{
delay(5);
if(key1==0)
{
while(!key1);
keynum++;
if(keynum==1)
{
if(flag==0) TR0=0;
write_com(0xc0+11);
write_com(0x0f);
}
if(keynum==2)
{
write_com(0xc0+8);
write_com(0x0f);
}
if(keynum==3)
{
write_com(0xc0+5);
write_com(0x0f);
}
if(keynum==4)
{
write_com(0x0c);
TR0=1;
if(flag==0)
{
keynum=0;
}
if(flag==1)
{
flag=0;
write_com(0x80);
for(i=0;i<16;i++)
{
write_date(table1[i]);
delay(5);
}
write_sfm(4,shi);
write_sfm(7,fen);
write_sfm(10,miao);
}
}
}
}
if(keynum!=0)
{
if(key2==0)
{
delay(5);
if(key2==0)
{
// while(!key2);
if(keynum==1)
{
if(flag==0)
{
miao++;
if(miao==60) miao=0;
write_sfm(10,miao);
write_com(0xc0+10);
delay(300);
}
if(flag==1)
{
T_miao++;
if(T_miao==60) T_miao=0;
write_sfm(10,T_miao);
write_com(0xc0+10);
delay(300);
}
}
if(keynum==2)
{
if(flag==0)
{
fen++;
if(fen==60) fen=0;
write_sfm(7,fen);
write_com(0xc0+7);
delay(300);
}
if(flag==1)
{
T_fen++;
if(T_fen==60) T_fen=0;
write_sfm(7,T_fen);
write_com(0xc0+7);
delay(300);
}
}
if(keynum==3)
{
if(flag==0)
{
shi++;
if(shi==24) shi=0;
write_sfm(4,shi);
write_com(0xc0+4);
delay(300);
}
if(flag==1)
{
T_shi++;
if(T_shi==24) T_shi=0;
write_sfm(4,T_shi);
write_com(0xc0+4);
delay(300);
}
}
}
}
if(key3==0)
{
delay(5);
if(key3==0)
{
// while(!key3);
if(keynum==1)
{
if(flag==0)
{
miao--;
if(miao==-1) miao=59;
write_sfm(10,miao);
write_com(0xc0+10);
delay(300);
}
if(flag==1)
{
T_miao--;
if(T_miao==-1) T_miao=59;
write_sfm(10,T_miao);
write_com(0xc0+10);
delay(300);
}
}
if(keynum==2)
{
if(flag==0)
{
fen--;
if(fen==-1) fen=59;
write_sfm(7,fen);
write_com(0xc0+7);
delay(300);
}
if(flag==1)
{
T_fen--;
if(T_fen==-1) T_fen=59;
write_sfm(7,T_fen);
write_com(0xc0+7);
delay(300);
}
}
if(keynum==3)
{
if(flag==0)
{
shi--;
if(shi==-1) shi=23;
write_sfm(4,shi);
write_com(0xc0+4);
delay(300);
}
if(flag==1)
{
T_shi--;
if(T_shi==-1) T_shi=23;
write_sfm(4,T_shi);
write_com(0xc0+4);
delay(300);
}
}
}
}
}
}
void main()
{
init();
while(1)
{
keyscan();
if(miao==T_miao&&fen==T_fen&&shi==T_shi)
{
P1=0xff;
}
}
}
void timer0() interrupt 1
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
count++;
if(count==16)
{
count=0;
P1=0xfe;
miao++;
if(miao==60)
{
miao=0;
fen++;
if(fen==60)
{
fen=0;
shi++;
if(shi==24)
{
shi=0;
}
if(flag==0) write_sfm(4,shi);
}
if(flag==0) write_sfm(7,fen);
}
if(flag==0) write_sfm(10,miao);
}
}
头文件
#ifndef _1602yejing_H_
#define _1602yejing_H_
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit E=P2^7;
sbit RW=P2^6;
sbit RS=P2^5;
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=148;y>0;y--);
}
void write_com(uchar com)//写命令函数
{
P0=com;
RS=0;
RW=0;
E=0;
delay(5);
E=1;
delay(5);
}
void write_date(uchar date)//写数据函数
{
P0=date;
RS=1;
RW=0;
E=0;
delay(5);
E=1;
delay(5);
}
#endif
