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標(biāo)題: 兩個(gè)單片機(jī)中斷的嵌套 [打印本頁]

作者: 開心大丸子 時(shí)間: 2019-12-22 20:40
標(biāo)題: 兩個(gè)單片機(jī)中斷的嵌套

單片機(jī)源程序如下:
#include<reg51.h>
#define uchar unsigned char
void delay(unsigned int i)
{
      unsigned int 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};
      unsigned int a;
      while(1)
      {
         EA=1;
            EX0=1;
            EX1=1;
            IT0=1;
            IT1=1;
            PX0=0;
            PX1=1;
            for(a=0;a<9;a++)
            {
                  delay(500);
                     P1=display[a];
         }
      }
}

void int0_isr() interrupt 0 using 1
{

uchar n;
      for(n=0;n<10;n++)
      {
         P1=0x0f;
            delay(500);
            P1=0xf0;
            delay(500);
      }
}

void int1_isr() interrupt 2 using 2
{

uchar m;
      for(m=0;m<10;m++)
      {
         P1=0xff;
            delay(500);
            P1=0;
            delay(500);
      }
}

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