ir.zip_红外

#include"W79E825.h" #include"math.h" unsigned int System_Time1 = 0; unsigned char System_Time_Count = 0; bit Have_IRmark = 0; sbit LED = P1^4; sbit P2_7 = P2^7; void delay_ms(unsigned int count) { unsigned int i; while(count-- > 0) { i = 220; while( i-- >0) ; } } void System_Init() { TMOD=0x11; TH0=0x1b; TL0=0x1b; TH1=0xff; TL1=0xff; IT0=1; EX0=1; TR0=1; ET0=1; TR1=1; ET1=1; EA =1; } void main() { System_Init(); while(1) { LED = Have_IRmark; Have_IRmark = 0; delay_ms(1000); } } void timer0(void) interrupt 1 { TH0=0xfc; TL0=0x6c; P2_0 = ~P2_0; } void timer1(void) interrupt 3 { System_Time1 = 0; System_Time_Count = 1; } void int0(void) interrupt 0 { P2_7 = ~ P2_7; System_Time1 = (TL1|TH1<<8); TH1 = TL1 = 0; if(abs(System_Time1-1841) < 50) { if(System_Time_Count++ > 3) LED = Have_IRmark = 1; } else { System_Time_Count = 1; } }