I have problems whit timer2 on Pic 16f876

[LLuis Miquel Condom]

Using this configuration does not work. what is the problem???

#include "16f876.h"
#fuses HS, NOWDT, NOPROTECT, PUT, BROWNOUT, NOLVP
#use delay(clock=3276800)
//#use Delay(Clock=8000000)
#zero_ram

int_tmr2();
//-----------------------------------------------

main()
{
setup_timer_2(T2_DIV_BY_16,0x7d,10);

set_tris_c(0);

enable_interrupts(INT_TIMER2);
enable_interrupts(GLOBAL);

set_timer2(22);

while(1);
}

//-----------------------

#INT_TIMER2
int_tmr2()
{
output_high(pin_c3); // Create a positive pulse on PIN A3.
output_low(pin_c3);
}

thanks
___________________________
This message was ported from CCS's old forum
Original Post ID: 144515241

[Kenny]

:=Using this configuration does not work. what is the problem???
:=
:=#include "16f876.h"
:=#fuses HS, NOWDT, NOPROTECT, PUT, BROWNOUT, NOLVP
:=#use delay(clock=3276800)
:=//#use Delay(Clock=8000000)
:=#zero_ram
:=
:=int_tmr2();
:=//-----------------------------------------------
:=
:=main()
:={
:=setup_timer_2(T2_DIV_BY_16,0x7d,10);
:=
:=set_tris_c(0);
:=
:=enable_interrupts(INT_TIMER2);
:=enable_interrupts(GLOBAL);
:=
:=set_timer2(22);
:=
:=while(1);
:=}
:=
:=//-----------------------
:=
:=#INT_TIMER2
:=int_tmr2()
:={
:=output_high(pin_c3); // Create a positive pulse on PIN A3.
:=output_low(pin_c3);
:=}
:=
:=thanks

Should work.
set_timer2(22) will do nothing.

Code will give a pulse of around 2uS on C3 (not A3) every 10mS with 8MHz crystal.

setup_timer_2(T2_DIV_BY_16,0x7d,10);
Timer2 will interrupt every 0.5*16*125*10 = 10mS

Regards
Kenny
___________________________
This message was ported from CCS's old forum
Original Post ID: 144515242