求解：独立按键+数码管，但是按下，数码管延时30S才显示？

1楼-- · 2020-02-04 10:01

#define uchar unsigned char
#define uint unsigned int
sbit K1=P3^2;
sbit K2=P3^3;
sbit K3=P3^4;
sbit K4=P3^5;
sbit K5=P1^4;
sbit K6=P1^5;
sbit K7=P1^6;
sbit K8=P1^7;
sbit BEEP=P3^6;
void delay1(uchar x)
{
uchar j;
while((x--)!=0)
{
for(j=0;j<125;j++)
{;}
}
}
void delay0(uchar x)
{
unsigned char i;
while(x--)
{
for(i=0;i<13;i++)
{}
}
}
void delay(uint ms)
{
uchar t;
while(ms--)
{
for(t=0;t<120;t++)
   ;
}
}
void beep()
{
unsigned char i;
for(i=0;i<100;i++)
      {
delay0(4);
BEEP=!BEEP;
      }
BEEP=1;
delay1(250);
}
void main()
{
P1=0xff;
P2=0x7f;
while(1)
{
P0=0xbf;
if(K1==0)
{
   delay(20);
   if(K1==0)
   {
beep();
P0=0xf9;
delay(1000);
}
}
else if(K2==0)
{
delay(20);
if(K2==0)
{
beep();
P0=0xa4;
delay(1000);
}
}
else if(K3==0)
{
delay(20);
if(K3==0)
{
beep();
P0=0xb0;
delay(1000);
}
}
else if(K4==0)
{
delay(20);
if(K4==0)
{
beep();
      P0=0x99;
delay(1000);
}
}
else if(K5==0)
{
delay(20);
if(K5==0)
{
beep();
P0=0x92;
            delay(1000);
}
}
      else if(K6==0)
{
delay(20);
if(K6==0)
{
beep();
P0=0x82;
delay(1000);
}
}
else if(K7==0)
{
delay(20);
if(K7==0)
{
beep();
P0=0xf8;
delay(1000);
}
}
else if(K8==0)
{
delay(20);
if(K8==0)
{
beep();
P0=0x80;
delay(1000);
}
}
}
}

武洋洋

2楼-- · 2020-02-04 11:41

上一贴程序工作正常；但如果将蜂鸣器程序改为如下一段则数码管要在按键按下30S后才显示，且蜂鸣器不发声，求解？？？？？？？？？？？？？？？
void beep()
{
unsigned char i;
for(i=0;i<100;i++)
      {
{ delay0(4);
BEEP=!BEEP;
   }
BEEP=1;
delay1(250);
      }
}