基于stc15单片机的串口通信,发送数据用数码管显示(源程序)

#include<reg51.h>

#define uchar unsigned char

uchar code ledtab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff}//共阳级数差早缓码管码表0-9

uchar time,scanled

uchar disdat[2]

bit flag=0

void dischg() //显示码转睁纯换

{

disdat[0]=s_dat/10//秒转换

disdat[1]=s_dat%10

}

void t0isr() interrupt 1 //秒计时

{

TH0=(65536-50000)/256

TL0=(65536-50000)%256

time++

if(time>=20)

{

time=0

s_dat++

flag=1

}

}

void t1isr() interrupt 3 //显示控制

{

TH1=(65536-4000)/256

TL1=(65536-4000)%256

duan=1

P0=0xff /虚模/消隐

duan=0

wei=1

P0=1<<scanled//位码

wei=0

duan=1

P0=disdat[scanled]

duan=0

scanled++

scanled%=2//共8位显示

}

main()

{

TMOD=0x21 //定时器0和1都为模式1

TH0=(65536-50000)/256//定时器0,50毫秒中断一次

TL0=(65536-50000)%256

TH1=0xfd

TL1=0xfd

SCON=0x40

TR1=1

TR0=0

ET0=1

EA=1

scanled=0

time=0

dischg()

while(1)

{

if(flag)

{

flag=0

SBUF=s_dat

while(TI==0)

TI=0

}

}

}

#include <reg52.H> //STC头文件

#define uchar unsigned char

#define uint unsigned int

#define timewe 3

sbit we = P2^7

sbit du = P2^6

unsigned long temp

uint 埋困jsms=0

uchar code duan[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F}

uchar code wei[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80}

void delay (uint a) // 1ms延时程序（12MHz 10倍于51单片机速度时）

{

uint i

while( --a != 0)

{

for(i = 0 如樱i < 600 i++) 

} 

}

uchar disbuf[6]

void display()

{ uchar 渣液丛code wei[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf}

static uchar a

if(a>=6)a=0

we=1

P0=0xff

we=0

du=1

P0=duan[disbuf[a]]

du=0

we=1

P0=wei[a]

we=0

a++

}

/**********************************************/

/* 主函数 */

/**********************************************/

void main(void)

{

temp=0

while(1)

{

if(++jsms>=1000){

if(++temp == 999999)

temp = 0 

}

disbuf[0] = temp/100000

disbuf[1] = temp%100000/10000

disbuf[2] = temp%10000/1000

disbuf[3] = temp%1000/100

disbuf[4] = temp%100/10

disbuf[5] = temp%10

display()

delay(1)

}

}

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