#include "MS51_16K.H"
/* if define tiMER0_FSYS_DIV12, timer = (0x1FFF-0x1000)*12/24MHz = 4.08ms */
/* if define TIMER0_FSYS, timer = (0x1FFF-0x0010)/24MHz = 340us */
#define TH0_INIT 0x00
#define TL0_INIT 0x10
/************************************************************************************************************
* TIMER 0 interrupt subroutine
************************************************************************************************************/
void Timer0_ISR (void) interrupt 1 /*interrupt address is 0x000B */
{
_push_(SFRS);
TH0 = TH0_INIT;
TL0 = TL0_INIT;
TF0 = 0 ;
P12 = ~P12; /* GPIO toggle when interrupt */
_pop_(SFRS);
}
/************************************************************************************************************
* Main function
************************************************************************************************************/
void main (void)
{
P12_PUSHPULL_MODE;
ENABLE_TIMER1_MODE0; /* Timer 0 mode configuration */
TIMER0_FSYS_DIV12;
TH0 = TH0_INIT;
TL0 = TL0_INIT;
ENABLE_TIMER0_INTERRUPT; /* enable Timer0 interrupt */
ENABLE_GLOBAL_INTERRUPT; /* enable interrupts */
set_TCON_TR0; /* Timer0 run */
while(1);
}
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