/* --- STC12C5Axx Series MCU T0(Falling edge) Demo -----------------*/


#include "reg51.h"

sfr AUXR = 0x8e;                    //Auxiliary register

//T0 interrupt service routine
void t0int() interrupt 1           //(location at 000BH)
{
}

void main()
{
    AUXR = 0x80;                    //timer0 work in 1T mode
    TMOD = 0x06;                    //set timer0 as counter mode2 (8-bit auto-reload)
    TL0 = TH0 = 0xff;               //fill with 0xff to count one time
    TR0 = 1;                        //timer0 start run
    ET0 = 1;                        //enable T0 interrupt
    EA = 1;                         //open global interrupt switch
    
    while (1);
}