pmd.rar_pmd

#include<reg52.h> #include<intrins.h> #define uint unsigned int #define uchar unsigned char void delayms(uint); uchar aa; void main() { aa=0xfe; while(1) { P1=aa; delayms(500); aa=_crol_(aa,1); } } void delayms(uint xms) { uint i,j; for(i=xms;i>0;i--) for(j=110;j>0;j--); }