51单片机PROTEUS按键通过定时器控制LED闪烁例程-49

#include <reg52.h> #define uchar unsigned char #define uint unsigned int sbit LED = P0^0; sbit KEY = P1^0; uint T_Count = 0; void main() { TMOD = 0x00; TH0 = 0xe0; TL0 = 0xc0; IE = 0x82; TR0 = 0; while(1) { if(KEY==0) { while(!KEY); TR0 = 1; } } } void LED_Flash() interrupt 1 { TH0 = 0xe0; TL0 = 0xc0; if(++T_Count == 1000) { LED = !LED; T_Count = 0; } }