51单片机c语言

Posted 2023-03-18

求一个电子钟源代码，用c语言编写，显示为xx-xx-xx，如果能用sms0801b显示器编写就完美了，不过这个型号的lcd市场上很少见。没的话用8个数码管也可以。时间用三个开关控制，可以调节时间。用p2.0,2.1，2.2控制。偶单片机学得不好，现在正在努力中呀，谢谢各位啦。

参考技术A #include<reg52.h>
#include<define.h>
void delay(uint z)

uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);


void didi()

beep=0;
delay(50);
beep=1;
delay(100);
beep=0;
delay(50);
beep=1;

void write_com(uchar com)

rs=0;
lcden=0;
P0=com;
delay(5);
lcden=1;
delay(5);
lcden=0;


void write_date(uchar date)

rs=1;
lcden=0;
P0=date;
delay(5);
lcden=1;
delay(5);
lcden=0;


void init()

uchar num;
EA=1;
EX0=1;
IT0=1;

dula=0;
wela=0;
lcden=0;
// set_time();
set_alarm(14,13,10);
write_ds(0x0B,0x26);
read_ds(0x0c);
// fen=59;
// miao=53;
// shi=23;
write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
write_com(0x80);
for(num=0;num<15;num++)

write_date(table[num]);
delay(5);

write_com(0x80+0x40);
for(num=0;num<12;num++)

write_date(table1[num]);
delay(5);




void write_sfm(uchar add,uchar date)

uchar shi,ge;
shi=date/10;
ge=date%10;
write_com(0x80+0x40+add);
write_date(0x30+shi);
write_date(0x30+ge);


void keyscan()

rd=0;
if(flag1==1)

if(s2==0)

delay(5);
if(s2==0)

while(!s2);
flag1=0;



if(s3==0)

delay(5);
if(s3==0)

while(!s3);
flag1=0;





if(s1==0)

delay(5);
if(s1==0)
s1num++;
flag=1;
flag1=0;
while(!s1);
if(s1num==1)

TR0=0;
write_com(0x80+0x40+10);
write_com(0x0f);


if(s1num==2)

write_com(0x80+0x40+7);

if(s1num==3)

write_com(0x80+0x40+4);

if(s1num==4)

s1num=0;
write_com(0x0c);
flag=0;
write_ds(0,miao);
write_ds(2,fen);
write_ds(4,shi);



if(s1num!=0)

if(s2==0)

delay(1);
if(s2==0)

while(!s2);
if(s1num==1)

miao++;
if(miao==60)
miao=0;
write_sfm(10,miao);
write_com(0x80+0x40+10);


if(s1num==2)

fen++;
if(fen==60)
fen=0;
write_sfm(7,fen);
write_com(0x80+0x40+7);

if(s1num==3)

shi++;
if(shi==24)
shi=0;
write_sfm(4,shi);
write_com(0x80+0x40+4);



if(s3==0)

delay(1);
if(s3==0)

while(!s3);
if(s1num==1)

/* if(miao==0)

miao=59;
write_sfm(10,miao);
write_com(0x80+0x40+10);
*/
miao--;
if(miao==-1)
miao=59;
write_sfm(10,miao);
write_com(0x80+0x40+10);

if(s1num==2)

fen--;
if(fen==-1)
fen=59;
write_sfm(7,fen);
write_com(0x80+0x40+7);

if(s1num==3)

shi--;
if(shi==-1)
shi=23;
write_sfm(4,shi);
write_com(0x80+0x40+4);






void write_ds(uchar add,uchar date)

dscs=0;
dsas=1;
dsds=1;
dsrw=1;
P0=add;
dsas=0;
dsrw=0;
P0=date;
dsrw=1;
dsas=1;
dscs=1;


uchar read_ds(uchar add)

uchar ds_date;
dsas=1;
dsds=1;
dsrw=1;
dscs=0;
P0=add;
dsas=0;
dsds=0;
P0=0xff;
ds_date=P0;
dsds=1;
dsas=1;
dscs=1;
return ds_date;


void set_time()

write_ds(4,10);
write_ds(2,32);



void set_alarm(uchar ashi,uchar afen,uchar amiao)

write_ds(1,amiao);
write_ds(3,afen);
write_ds(5,ashi);

void main()

init();
while(1)

keyscan();
if(flag1==1)
didi();
if(flag==0)

miao=read_ds(0);
fen=read_ds(2);
shi=read_ds(4);
write_sfm(10,miao);
write_sfm(7,fen);
write_sfm(4,shi);




void exter() interrupt 0
uchar c;
flag1=1;
c=read_ds(0x0c);


用的是DS12C887液晶 参考技术B 你用1302了吗，我有一个用延时做的，还有一个用1302做的，你要那种啊，显示是数码管显示，可以设定两个定时时间，四个按键，如果需要的话给我留言 参考技术C 我有数码管。。。你那个没用过 爱莫能助本回答被提问者采纳 参考技术D 这个要配合硬件的、、、、