单片机仿真 INT0及INT1中断计数.rar

#include <reg52.h> #define uchar unsigned char #define uint unsigned int sbit k3 = P3^4; sbit k4 = P3^5; uchar code DSY_CODE[]= { 0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff }; uchar code Scan_BITs[]= { 0x20,0x10,0x08,0x04,0x02,0x01 }; uchar data Buffer_Counts[]={0,0,0,0,0,0}; uint Count_A=0; uint Count_B=0; void DelayMS(uint x) { uchar t; while(x--) { for(t=0;t<120;t++); } } void Show_Counts() { uint i; Buffer_Counts[2] = Count_A / 100; Buffer_Counts[1] = Count_A % 100 /10; Buffer_Counts[0] = Count_A % 10; if(Buffer_Counts[2]==0) { Buffer_Counts[2] = 0x0a; if(Buffer_Counts[1]==0) { Buffer_Counts[1]=0x0a; } } Buffer_Counts[5] = Count_B / 100; Buffer_Counts[4] = Count_B % 100 /10; Buffer_Counts[3] = Count_B % 10; if(Buffer_Counts[5]==0) { Buffer_Counts[5] = 0x0a; if(Buffer_Counts[4]==0) { Buffer_Counts[4]=0x0a; } } for(i=0;i<6;i++) { P2 = Scan_BITs[i]; P1 = DSY_CODE[Buffer_Counts[i]]; DelayMS(1); } } void main() { IT0 = 1; IT1 = 1; PX0 = 1; IE = 0x85; while(1) { if(k3 == 0) Count_A = 0; if(k4 == 0) Count_B = 0; Show_Counts(); } } void EX_INT0() interrupt 0 { Count_A++; } void EX_INT1() interrupt 2 { Count_B++; }