CCS C Software and Maintenance Offers
FAQFAQ   FAQForum Help   FAQOfficial CCS Support   SearchSearch  RegisterRegister 

ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

CCS does not monitor this forum on a regular basis.

Please do not post bug reports on this forum. Send them to support@ccsinfo.com
16f886 INT_RB not working

 
Post new topic   Reply to topic    CCS Forum Index -> General CCS C Discussion
View previous topic :: View next topic  
Author Message
JK
Guest
16f886 INT_RB not working
PostPosted: Fri Mar 05, 2010 8:23 pm     Reply with quote
I'm just trying to test PIN_B change interrupt writing program with CCS but it's not working at all.
The system of simple test is, to press button connected to RB7 port (pulled up) LED Light ON on port A1. That's it.

Test code is.....
Code:

#include "c: \ xxxxxxxxxxxxxx "

#int_RB
void  RB_isr(void)
{
  int temp;

  output_bit(pin_A1,1);

  delay_ms(120);
 
  temp = input_b();
}


void main()
{
   set_tris_b(1);
   setup_adc_ports(NO_ANALOGS|VSS_VDD);
   setup_adc(ADC_CLOCK_DIV_2);
   setup_spi(SPI_SS_DISABLED);
   setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
   setup_timer_1(T1_DISABLED);
   setup_timer_2(T2_DISABLED,0,1);
   setup_comparator(NC_NC_NC_NC);
   
   port_b_pullups(true);
 
 
   
   enable_interrupts(INT_RB);
   enable_interrupts(GLOBAL);
//Setup_Oscillator parameter not selected from Intr Oscillator Config tab

   // TODO: USER CODE!!.,8
   output_bit(pin_A1,1);
   delay_ms(500);
   output_bit(pin_A1,0);    //LED blink test is working fine.
   
   while(1)
   {
   }
}

It would be great if someone can help me out. Thank you.
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

View user's profile Send private message

PostPosted: Fri Mar 05, 2010 11:38 pm     Reply with quote
I've modified your program so it should work. If press the button on
pin B7 down, the LED will go on. When you release the button, the LED
will go off.
Code:

#include <16F886.h>
#fuses INTRC_IO, NOWDT, BROWNOUT, PUT, NOLVP
#use delay(clock=4000000)

#define SW_PIN   PIN_B7
#define LED_PIN  PIN_A1

#int_rb
void rb_isr(void)
{
int8 value;

output_toggle(LED_PIN);
delay_ms(10);

value = input(SW_PIN);
}

//============================
void main()
{
int8 temp;

output_low(LED_PIN);

temp = input(SW_PIN);
clear_interrupt(INT_RB);
enable_interrupts(INT_RB7);
enable_interrupts(GLOBAL);

while(1);
}
JK
Guest
Thank you
PostPosted: Sat Mar 06, 2010 1:10 am     Reply with quote
Thank you very much PCM programmer.
Now it is working perfectly.
I found myself that my understanding with 886 wasn't deep enough.

Thank you again.
Display posts from previous:   
Post new topic   Reply to topic    CCS Forum Index -> General CCS C Discussion All times are GMT - 6 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group