#include <reg51.h>

//晶振11.0592MZH

//每次中斷誤測約為0.434微秒

unsinged char T = 0;

void InitTimer0(void)

{

TMOD = TMOD | 0x01;

TH0 = 0x0FC;

TL0 = 0x66;

EA = 1;

ET0 = 1;

TR0 = 1;

}

void InitUART(void)

{

TMOD = TMOD | 0x20;

SCON = 0x50;

TH1 = 0xFD;

TL1 = TH1;

PCON = 0x00;

EA = 1;

ES = 1;

TR1 = 1;

}

void SendOneByte(unsigned char c)

{

SBUF = c;

while(!TI);

TI = 0;

}

void main(void)

{

InitTimer0();

InitUART();

while(1);

}

void Timer0Interrupt(void) interrupt 1

{

TH0 = 0x0FC;

TL0 = 0x66;

if(T ==1000)

{

T = 0；

SendOneByte("k");//要傳送的資料

}

esle

{

T++;

}

}

void UARTInterrupt(void) interrupt 4

{

if(RI)

{

RI = 0;

//如果有接收資訊，在這加入。

}

else

TI = 0;

}