简单中断c51有代码

ID:252387 · 发表于 2017-11-22 19:10

#include<reg51.h>
#define uchar unsigned char
#define uint unsigned int
void delay(uint i){
  uint j;
  for(;i>0;i--)
  for(j=0;j<125;j++);
  }
  void main(){
  uchar
display[9]={0xff,0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
for(;;) {
   uint a;
EA=1;
EX0=1;
EX1=1;
IT0=1;
IT1=1;
IP=0;
for(a=0;a<9;a++) {
   delay(500);
   P1=display[a];
   }
  }
}
void int0(void)interrupt 0{
  uchar m;
  for(m=0;m<5;m++){
P1=0X0F;
  delay(500);
  P1=0xf0;
  delay(500);
  }
}
void intl(void)interrupt 2{
uchar n;
for(n=0;n<5;n++){
P1=0xff;
delay(500);
P1=0;
   delay(500);
}
}

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