請(qǐng)教一下我這個(gè)單片機(jī)程序 JDQ為什么只亮不滅?

ID:784703 · 發(fā)表于 2022-4-12 10:31

我用keil 仿真又可以到開(kāi)發(fā)板后又不行，按鍵按下后 JDQ亮松開(kāi)手后就沒(méi)有動(dòng)作了有沒(méi)有人可以解惑一下謝謝

單片機(jī)源程序如下:
#include <reg52.h>
#include <intrins.h>
#define JINC(x) if(++x<= 0)--x
#define uchar unsigned       char
uchar flag1ms;
sbit K1=P2^0;
sbit JDQ=P2^6;
void out_jidianqi();
void keyPress();
void init();
void main ()
{
      init();
      P0=0X00;
      JDQ=1;
flag1ms=0;
      while (1)
      {
            if (flag1ms)
            {
                     flag1ms=0;
                     keyPress();
                     out_jidianqi();
            }
      }
}

void init()
{
      TMOD=0x01;
      TH0=0xfc;
      TL0=0x18;
      EA=1;
      ET0=1;
      TR0=1;
}

void timer0() interrupt 1
{
      TH0=0xfc;
      TL0=0x18;
      flag1ms=1;
}

void keyPress()
{
      static unsigned int key_press_time = 0;//靜態(tài)變量
      if(K1==0)
      {
            JINC(key_press_time);
            if(20<=key_press_time && key_press_time < 3000)
            {
               if(JDQ==1)
               {
               JDQ=0;
               }
            key_press_time=0;
            }

      }
}

void out_jidianqi()
{
static unsigned int DELAY = 0;
         if(JDQ==0)
      {
            JINC(DELAY);
            if(DELAY==1000)
            {
               JDQ=1;
            }
            DELAY=0;
      }

}