- #include <reg51.h>
- #define uchar unsigned char
- void Delay(unsigned int i)
- {
- uchar 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;
- for(;;)
- {
- EA=1;
- EX0=1;
- EX1=1;
- IT0=1;
- IT1=1;
- IP=0;
- for(a=0;a<9;a++)
- {
- Delay(800);
- P1=display[a];
- }
- }
- }
- void int0_isr(void) interrupt 0 using 1
- {
- uchar n;
- for(n=0;n<10;n++)
- {
- P1=0x0f;
- Delay(800);
- P1=0xf0;
- Delay(800);
- }
- }
- void int1_isr (void) interrupt 2 using 2
- {
- uchar m;
- for(m=0;m<10;m++)
- {
- P1=0xff;
- Delay(800);
- P1=0;
- Delay(800);
- }
- }
仿真图.jpg
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