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How to use multiple ioc pin with different isr functions?

 
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bladekel



Joined: 23 Feb 2019
Posts: 1

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How to use multiple ioc pin with different isr functions?
PostPosted: Sat Feb 23, 2019 3:01 am     Reply with quote
Hello to all,

I'm trying to use multiple ioc pins with 16f1824 ic.
I can define all ioc pins separately but couldnt control with different isr functions.

I define them like ;
Code:

   enable_interrupts(INT_RA3);
   enable_interrupts(INT_RA4);
   enable_interrupts(INT_RA5);


but I could only control them with;
Code:

#INT_RA
void  RA_isr(void)
{
  .....
}


Do you have any advice for me to control them seperately like;
Code:

#INT_RA3
void  RA3_isr(void)
{
  .....
}
#INT_RA4
void  RA4_isr(void)
{
  .....
}
#INT_RA5
void  RA5_isr(void)
{
  .....
}


I can control them in INT_RA but , as you know any of the A3,A4,A5 pin change the isr_function runs ...
Ttelmah



Joined: 11 Mar 2010
Posts: 19552

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PostPosted: Sat Feb 23, 2019 3:23 am     Reply with quote
There is only one IOC interrupt.

Your code in the handler has to test which bit has triggered it.

All you do is test which bit triggered, and then execute the required code.
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