CCS C Timer

main.c

#include "main.h"
#define LED PIN_C0
#int_TIMER0
void  Ngat_TIMER0(void)
{
fprintf(PORT1,"Ngat timer 0\r\n");

}
#int_TIMER1
void  Ngat_TIMER1(void)
{

output_toggle(PIN_C1);//Ham dao trang thai

}
#int_TIMER2
void  Ngat_TIMER2(void)
{

output_toggle(PIN_C1);//Ham dao trang thai

}

void main()
{
setup_timer_0(RTCC_INTERNAL|RTCC_DIV_128);      //1.6 s overflow//tang gia tri sau 0.2us
setup_timer_1(T1_INTERNAL|T1_DIV_BY_1);      //13.1 ms overflow//tang sau 0.2us

fprintf(PORT1,"HiThere");
//enable_interrupts(INT_TIMER0);//cho phep ngat timer0
//enable_interrupts(INT_TIMER1);//cho phep ngat timer1
setup_timer_2(T2_DIV_BY_1,5,5);
enable_interrupts(INT_TIMER2);
enable_interrupts(GLOBAL);
/*
setup_timer_2 (mode, period, postscale)
setup_timer_2(T2_DIV_BY_1,4,1);
Timer 2 tuong duong voi : mode: Khong chia tan so(tan so =5mhz)
                          period: 4(Gia tri de timer reset laij ve 0: 0-255
                          postscale =1( so lan de xay ra ngat sau khi reset) 0-16
gia tri tang sau 1 xung 0.2us
khi tang 4 xung thi timer bi reset
Tinhs ra so lan tran timer trong 1 s la: 1/((0.2*4*1)*10^-6)=1250000
tan so cua chan 1250000/2=625000
------------Tinh cho xung 1khz tren chan c1-timmer 2 can tran 2000 lan /2
chonh mode ko chia tan so- 1 gia tri timer tang 0.2us
-> period=250
1 lan reset timer ma 250*0.2=50us
postscale=10//setup_timer_2(T2_DIV_BY_1,250,10);
//Tao xung 100k
setup_timer_2(T2_DIV_BY_1,5,5);
*/


   while(TRUE)
   {
      output_high(PIN_C0);
      delay_ms(100);
       output_low(LED);
      delay_ms(100);
   }

}

main.h

#include<18f4520.h>
#device adc=10

#FUSES NOWDT                    //No Watch Dog Timer
#FUSES WDT128                   //Watch Dog Timer uses 1:128 Postscale
#FUSES HS                       //High speed Osc (> 4mhz for PCM/PCH) (>10mhz for PCD)
#FUSES NOBROWNOUT               //No brownout reset
#FUSES NOLVP                    //No low voltage prgming, B3(PIC16) or B5(PIC18) used for I/O
#FUSES NOXINST                  //Extended set extension and Indexed Addressing mode disabled (Legacy mode)

#use delay(clock=20000000)

#use rs232(baud=9600,parity=N,xmit=PIN_D0,rcv=PIN_D1,bits=8,stream=PORT1)