#include "Timer.h" void Timer1Init(void) //1??@12.000MHz { AUXR &= 0xBF; //?????12T?? TMOD &= 0x0F; //??????? TL1 = 0x18; //?????? TH1 = 0xFC; //?????? TF1 = 0; //??TF1?? TR1 = 1; //???1???? ET1=1; } void Initsystem() { P0=0; P2=(P2&0x1f)|0xa0; P2&=0x1f; P0=0xff; P2=(P2&0x1f)|0x80; P2&=0x1f; }