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為什么我的lcd1602一直是兩排白塊，老師說我的是程序有問題但是我不會(huì)改有沒有大佬幫忙看看。因?yàn)槲沂窃诰W(wǎng)上找的別人51的程序，改成15的。老師說我的延時(shí)函數(shù)有問題但是我自己改了一下因?yàn)椴恢涝瓉硎茄訒r(shí)多久我也不會(huì)改。有沒有大佬幫忙看看為什么我的lcd1602一直是兩排白板
#include "stc15.h"
#include <intrins.h>
#define uchar unsigned char
#define unit unsigned int
sbit RS=P2^0;
sbit RW=P2^1;
sbit E=P2^2;
sbit key0=P1^0;//功能鍵
sbit key1=P1^1;//光標(biāo)的移動(dòng)
sbit key2=P1^2;//加
sbit key3=P1^3;//減
sbit buz=P2^7;//蜂鳴器
sbit in1=P1^4;
sbit in2=P1^6;
sbit led=P3^7;//led
sbit hood=P1^7;
unsigned char count=0;
unsigned int hour=0,min=0,sec=0;
unsigned int alarm_h=0,alarm_m=0;
unsigned char str_sw0[]={"off"};
unsigned char str_sw1[]={"on"};
unsigned char str[]={"0123456789"};
unsigned int readtemp=0;
unsigned char a[]={"alarm:"};
unsigned int w=-1,pattern=0,sw=0;
unsigned int i=0;
unsigned char s[]={"T:"};
void delay();
void beep();
void delay(unsigned int t);
void writecom(unsigned char com);
void writedat(unsigned char dat);
void initlcd();
void display_time();
void display_alarm();
void inittimer();
void function();
void main();
void delayms(unsigned int q)//延時(shí)函數(shù)
{
unsigned int w=0,e=0,k=1;
k=10*q;
for(w=0;w<k;w++)
{
for(e=0;e<120;e++);
}
}
void delay(unsigned int t)//延時(shí)函數(shù)
{
unsigned int i=0,j=0;
for(i=0;i<t;i++)
{
for(j=0;j<120;j++);
}
}
//************************LCD1602************************//
void writecom(unsigned char com)//寫命令
{
RS=0;
RW=0;
E=0;
P0=com;
delayms(2);
E=1;
E=0;
}
void writedat(unsigned char dat)//寫數(shù)據(jù)
{
RS=1;
RW=0;
E=0;
P0=dat;
delayms(2);
E=1;
E=0;
}
void initlcd() // lcd1602初始化
{
writecom(0x38);//設(shè)置16*2顯示,5*7點(diǎn)陣,8位數(shù)據(jù)接口
writecom(0x0c);//設(shè)置開顯示,不顯示光標(biāo)
writecom(0x06);//寫一個(gè)字符后地址指針加1
writecom(0x01);//顯示清0,數(shù)據(jù)指針清0
}
void display_time()//時(shí)間顯示
{
unsigned char temp0=0,temp1=0,temp2=0,temp3=0,temp4=0,temp5=0;
temp0=hour/10;//拆分個(gè)位十位
temp1=hour%10;
temp2=min/10;
temp3=min%10;
temp4=sec/10;
temp5=sec%10;
writecom(0x80+0x40);//第二行顯示
delay(2);
writedat(str[temp0]);//顯示時(shí)分秒
delay(2);
writedat(str[temp1]);
delay(2);
writedat(':');
delay(2);
writedat(str[temp2]);
delay(2);
writedat(str[temp3]);
delay(2);
writedat(':');
delay(2);
writedat(str[temp4]);
delay(2);
writedat(str[temp5]);
delay(2);
}
void display_alarm()//鬧鐘顯示
{
unsigned char temp0=0,temp1=0,temp2=0,temp3=0,i=0,j=0;
writecom(0x80);
delay(2);
temp0=alarm_h/10;//拆分個(gè)位十位
temp1=alarm_h%10;
temp2=alarm_m/10;
temp3=alarm_m%10;
while(a[i]!='\0')
{
writedat(a[i]);
delay(5);
i++;
}
writecom(0x80+15);
delay(2);
if(sw==0)
{
writedat('0');
}
if(sw==1)
{
writedat('1');
}
delay(2);
writecom(0x80+0x40+5);
delay(2);
writedat(str[temp0]);
delay(2);
writedat(str[temp1]);
delay(2);
writedat(':');
delay(2);
writedat(str[temp2]);
delay(2);
writedat(str[temp3]);
delay(2);
}
//**************************定時(shí)器************************//
void inittimer()//定時(shí)器初始化
{
TMOD=0x01;
TH0=0x3c;//50ms
TL0=0xb0;
ET0=1;//開啟定時(shí)器0的中斷
EA=1;//開啟總中斷
TR0=1;//啟動(dòng)定時(shí)器0
}
//***********************調(diào)時(shí)功能*********************//
void function()//調(diào)時(shí),鬧鐘功能
{
unsigned int key1sum=0,key2sum=0;
if(key0==0)//判斷按鍵是否按下
{
delay(10);//消抖
if(key0==0)
{
if(pattern<1)
{
pattern++;
}
else pattern=0;
while(!key0);//等待松開
}
}
if(pattern==0)//時(shí)間界面
{
if(key1==0)//判斷是否按下
{
delay(10);
if(key1==0)
{
while(!key1);//等待松開
if(key1sum<3)//按幾下光標(biāo)移到哪一位
{key1sum++;
EA=0;}
else key1sum=0;
if(key1sum==1)
{
writecom(0x80+0x40+7);//移動(dòng)到秒
writecom(0x0e); //光標(biāo)顯示
while(1)
{
if(key1==0)
{
delay(10);
if(key1==0)
{
while(!key1);
key1sum=2;
break;
}
}
if(key2==0) //秒歸零
{
delay(10);
if(key2==0)
{
while(!key2);
sec=0;
display_time();
writecom(0x80+0x40+7);
}
}
if(key3==0) //秒歸零
{
delay(10);
if(key3==0)
{
while(!key3);
sec=0;
display_time();
writecom(0x80+0x40+7);
}
}
}
}
if(key1sum==2)
{
writecom(0x80+0x40+4);//移動(dòng)到分
writecom(0x0e); //光標(biāo)顯示
while(1)
{
if(key1==0)
{
delay(10);
if(key1==0)
{
while(!key1);
key1sum=3;
break;
}
}
if(key2==0)//加
{
delay(10);
if(key2==0)
{
while(!key2);
min++;
if(min==60)//最高為60分
{min=0;}
display_time();
writecom(0x80+0x40+4);
}
}
if(key3==0) //減
{
delay(10);
if(key3==0)
{
while(!key3);
if(min>0)
{min--;}
display_time();
writecom(0x80+0x40+4);
}
}
}
}
if(key1sum==3)
{
writecom(0x80+0x40+1);//移動(dòng)到時(shí)
writecom(0x0e); //光標(biāo)顯示
while(1)
{
if(key1==0)
{
delay(10);
if(key1==0)
{
while(!key1);
key1sum=0;
break;
}
}
if(key2==0)//加
{
delay(10);
if(key2==0)
{
while(!key2);
hour++;
if(hour==24)//最高為24時(shí)
{hour=0;}
display_time();
writecom(0x80+0x40+1);
}
}
if(key3==0) //減
{
delay(10);
if(key3==0)
{
while(!key3);
if(hour>0)
{hour--;}
display_time();
writecom(0x80+0x40+1);
}
}
}
}
if(key1sum==0)//跑時(shí)鐘
{
EA=1;
writecom(0x0c);
}
}
}
}
if(pattern==1)//鬧鐘界面
{
if(key1==0) //開關(guān)鬧鐘
{
delay(10);
if(key1==0)//檢驗(yàn)是否按下
{
while(!key1);//等待按鍵松開
if(sw==0)
{sw=1;}
else sw=0;
display_alarm();
}
}
if(key2==0)//檢測(cè)key2是否摁下 //設(shè)置鬧鐘
{
delay(10);
if(key2==0)
{
while(!key2);//等待松開
if(key2sum<2)
{key2sum++;}
else key2sum=0;
if(key2sum==1)
{
writecom(0x80+0x40+6);//移動(dòng)到時(shí)
writecom(0x0e); //打開光標(biāo)
while(1)
{
if(key2==0)
{
delay(10);
if(key2==0)
{
while(!key2);
key2sum=2;
break;
}
}
if(key3==0)
{
delay(10);
if(key3==0)
{
while(!key3);
alarm_h++;
if(alarm_h==24)
{alarm_h=0;}
display_alarm();
writecom(0x80+0x40+6);
}
}
}
}
if(key2sum==2)
{
writecom(0x80+0x40+9);//移動(dòng)到分
writecom(0x0e); //打開光標(biāo)
while(1)
{
if(key2==0)
{
delay(10);
if(key2==0)
{
while(!key2);
key2sum=0;
break;
}
}
if(key3==0)
{
delay(10);
if(key3==2)
{
while(!key3);
alarm_m++;
if(alarm_m==60)
{alarm_m=0;}
display_alarm();
writecom(0x80+0x40+9);
}
}
}
}
if(key2sum==0) //設(shè)置完畢,歸位
{
writecom(0x0c);
}
}
}
}
}
void main()
{
unsigned int flag0=0,flag1=0,flag2=0;
initlcd();
inittimer();
P0M1 = 0; P0M0 = 0; //設(shè)置為準(zhǔn)雙向口
P1M1 = 0; P1M0 = 0; //設(shè)置為準(zhǔn)雙向口
P2M1 = 0; P2M0 = 0; //設(shè)置為準(zhǔn)雙向口
P3M1 = 0; P3M0 = 0; //設(shè)置為準(zhǔn)雙向口
P4M1 = 0; P4M0 = 0; //設(shè)置為準(zhǔn)雙向口
P5M1 = 0; P5M0 = 0; //設(shè)置為準(zhǔn)雙向口
P6M1 = 0; P6M0 = 0; //設(shè)置為準(zhǔn)雙向口
P7M1 = 0; P7M0 = 0; //設(shè)置為準(zhǔn)雙向口
buz=1;
while(1)
{
function();
if(pattern==0)//時(shí)間界面
{
if(flag0==0)
{
writecom(0x40);
flag0=2;
}
display_time();
flag1=0;
}
if(pattern==1)//鬧鐘界面
{
if(flag1==0)
{
writecom(0x01);
flag1=2;
}
display_alarm();
flag0=0;
}
if((sw==1&&hour==alarm_h&&min==alarm_m&&hood==1&&in1==1)||(sw==1&&hour==alarm_h&&min==alarm_m&&hood==1&&in2==1))
{
delay();
while((sw==1&&hour==alarm_h&&min==alarm_m&&hood==1&&in1==1)||(sw==1&&hour==alarm_h&&min==alarm_m&&hood==1&&in2==1))
{
beep();
}
}
if((sw==1&&hour==alarm_h&&min>=alarm_m&&in1==1&&hood==1)||(sw==1&&hour==alarm_h&&min>=alarm_m&&in2==1&&hood==1))
{
delay();
while((sw==1&&hour==alarm_h&&min>=alarm_m&&in1==1&&hood==1)||(sw==1&&hour==alarm_h&&min>=alarm_m&&in2==1&&hood==1))
{
beep();
}
}
if((sw==1&&hour>=alarm_h&&in1==1&&hood==1)||(sw==1&&hour>=alarm_h&&in2==1&&hood==1))
{
delay();
while((sw==1&&hour>=alarm_h&&in1==1&&hood==1)||(sw==1&&hour>=alarm_h&&in2==1&&hood==1))
{
beep();
}
}
if(hood==1)
led=1;
if(hood==0)
led=0;
}
}
void beep()
{
for(i=0;i<100;i++)
{
delay();
buz=~buz;
EA=1;
}
}
void timer0_isr() interrupt 1 //定時(shí)器中斷服務(wù)函數(shù)
{
count++;
if(count==19)//1s
{
sec++;
count=0;
}
if(sec==60)
{
min++;
sec=0;
}
if(min==60)
{
hour++;
min=0;
}
if(hour==24)
{
hour=0;
}
} |
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