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Thank you Ttelmah. All is well with my code Smile

Regards,
SerialGmr8

Greetings programming gurus.

Im trying to interrupt when a change (hi/low) is detected on PIN B4 on my pic16f877a. My code in entirety is as follows;

#include <16F877a.h>
#fuses HS,NO ...

Hello all,

I've been trying to use the interrupt on change on the port A pins, but the compiler states that it doesnt recognise "#define int_ra".

Im using PCW Compiler versions 4.057. ...

duely noted Foppie.

much thanks

surely worth a shot.
thanks frequentguest...

*you might as well sign up :P*

Hello C gurus,

im trying to merge two int8 values into an int16 as follows;

#include <16F877.h>
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=20000000)

int8 storetemp&# ...

Thanks to all for their most valued assistance.

The following code implements a 3 minute timer on timer0.

#if defined(__PCM__)
#include <16F877.h>
#fuses HS,NOWDT,NOPROTECT,N ...

mcuh thanks. I will give this a try and let you all know how it goes.

*declare some variable for ex. ledstate

#include <16f818.h>
#use delay(clock=8000000)
#fuses NOWDT,HS,NOPUT,NOPROTECT,NOBROWNOUT,NOLVP

BYTE ledstate; //led state (on / ...

hey spom,

i got something similiar inquiring about in this thread.
http://www.ccsinfo.com/forum/viewtopic.php?t=32889

this might help you. im decoding for three minutes. your coding should be s ...

Thanks guys. i've updated my code to be similar to one of the examples with ccs. but this still doesnt work.

when i get my first three minute interrupt, would i have to restart a counter or somethi ...

Greetings all,

im trying to get an approximate interupt rate of one second on timer0, using ccs compliler version 4.059, to a pic16f877a target chip running at 20Mhz

#include <16F877A.h> ...

As per Kenny's post :

write_byte(0xEC); // Send Alarm Search command

do
{
x = 0;
if (read_bit() == 1) x = 2;
delay_us(120& ...