51單片機(jī)實(shí)驗(yàn)和Proteus虛擬仿真視頻講解+代碼

ID:481197 · 發(fā)表于 2019-2-27 16:22

實(shí)驗(yàn)和仿真視頻演示:

單片機(jī)源程序如下:

#include <reg51.h>
#define uchar unsigned char
#define uint unsigned int
uchar code number[]={0xfc,0x60,0xda,0xf2,0x66,0xb6,0xbe,0xe0,0xfe,0xf6,0xee,0x3e,0x9c,0x7a,0x9e,0x8e};
//共陰數(shù)碼管編碼表
uchar code address[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};//數(shù)碼管選擇編碼表
uchar i,time;
uint count=22;
uint temp1,temp;
bit flag;
void delay(uint m)
{
while(m--);
}
void main(void)
{
EA=1;//開(kāi)總中斷
ET0=1;//開(kāi)定時(shí)器0中斷
ET1=1;//開(kāi)定時(shí)器1中斷
TMOD=0x16;//設(shè)置T1為定時(shí)器工作方式為；T0為計(jì)數(shù)器，工作方式為2
TH0=0xff;
TL0=0xff;//給計(jì)數(shù)器0賦初值，計(jì)數(shù)值為1，即每來(lái)次中斷信號(hào)，T0中斷一次
TR0=1;//啟動(dòng)計(jì)數(shù)器0
TH1=(65536-50000)/256;
TL1=(65536-50000)%256;//給定時(shí)器1賦初值，時(shí)間為5ms（12MHz）
TR1=1;//啟動(dòng)定時(shí)器1.
while(1)//死循環(huán)
{
temp1=temp;
for(i=0;i<5;i++)//將計(jì)數(shù)值各個(gè)位取出，并從P1口輸出
{
P2=address[i];
P1=number[temp%10];
temp=temp/10;
delay(100);//數(shù)碼管動(dòng)態(tài)顯示，注意延時(shí)時(shí)間
}
temp=temp1;
if(flag==1)//定時(shí)達(dá)滿標(biāo)志
{
time=0;
flag=0;
temp=count;//儲(chǔ)存計(jì)數(shù)器0的計(jì)數(shù)值
count=0;
EA=1;
}
}
}
void time0(void) interrupt 1//計(jì)數(shù)器中斷子程序
{
count++;//每中斷一次count加1
}
void time1(void) interrupt 3//定時(shí)器中斷子程序
{
TH1=(65536-50000)/256;
TL1=(65536-50000)%256;//重新給定時(shí)器賦初值
time++;//總定時(shí)時(shí)長(zhǎng)：20x50ms=1s
if(time>=20)
{
time=0;
EA=0;//關(guān)閉總中斷
flag=1;//定時(shí)達(dá)滿標(biāo)志置1
}
}