#include"reg51.h" #include"intrins.h" #include"stdio.h" typedef unsigned char u8; typedef unsigned int u16; #define led P2 sbit beep=P1^5; void delay(u16 i) { while(i--); } void main() { int i; led=0xfe; delay(100000); while(1) { for(i=0;i<7;i++) { led=_crol_(led,1); delay(100000); } } led=0; delay(50000); while(1) { beep=~beep; delay(10); } } |