其中，我設置的按鍵對蜂鳴器進行控制，但是在仿真的時候，按鍵按下，蜂鳴器并不響，同時數碼管的倒計時顯示也受到了影響
#define _MAIN_C
#include "use.h"
#include "main.h"
#include "time.h"
#include "key.h"
bit flag1s;
sbit nsg = P2^0;
sbit nsy = P2^1;
sbit nsr = P2^2;
sbit weg = P2^5;
sbit wey = P2^4;
sbit wer = P2^3;
sbit k1 = P3^5;
sbit k2 = P3^6;
sbit bp = P1^0;
int key1 = 1;
int key2 = 1;
int Bun=0;
uchar count1s,NS_time,WE_time;
uchar GreenTime=30,RedTime=35;
uchar index=0;
enum eStaSysterm StaSysterm=NormalRun;
void Beep_on()
{
bp=~bp;
Delay10us(2000);
}
void keypros1()
{
if(k1 == 0)
{
if(wer == 1)
{
key1 = 2;
Bun=10;
}
}
while(!k1);
}
void keypros2()
{
if(k2 == 0)
{
if(nsr == 1)
{
key2 = 2;
Bun=10;
}
while(!k2);
}
}
void main()
{
EA=1;
InintTimer0();
while(1)
{
LEDScan();
KeyDriver();
keypros2();
keypros1();
if((Bun > 0 && key1 == 2) || (Bun > 0 && key2 == 2) )
{
Beep_on();
Bun--;
}
if(Bun<0)
{
key1=1;
key2=1;
}
if(flag1s)
{
flag1s=0;
NS_time--;
WE_time--;
}
}
}
void InintTimer0()
{
TMOD=0X01;
TH0=0X4C;
TL0=0X00;
ET0=1;
TR0=1;
}
void Timer0() interrupt 1
{
TH0=0XBB;
TL0=0X00;
KeyScan();
if(++count1s<50) return;
count1s=0;
if(StaSysterm==NormalRun) flag1s=1;
}
void LEDScan()
{
if(StaSysterm==NormalRun)
{
if(NS_time==0 || WE_time==0)
{
switch(index)
{
case 0:
{
index=1;
NS_time=GreenTime;
WE_time=RedTime;
P2=0x09;
}break;
case 1:
{
index=2;
NS_time=RedTime-GreenTime;
P2=0X0A;
}break;
case 2:
{
index=3;
NS_time=RedTime;
WE_time=GreenTime;
P2=0X24;
}break;
case 3:
{
index=0;
WE_time=RedTime-GreenTime;
P2=0X14;
}break;
default:break;
}
}
Seg_Display(NS_time/10,0);
Seg_Display(NS_time%10,1);
Seg_Display(WE_time/10,2);
Seg_Display(WE_time%10,3);
}
else if(StaSysterm==UrgentRun)
{
P2=0x12;
Delayms(200);
P2=0x00;
Delayms(200);
}
}
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