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chava



Joined: 07 Sep 2003
Posts: 56

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push button
PostPosted: Fri Feb 27, 2004 2:47 am     Reply with quote
hi all
I want to implement a push button with pic 16f630 using the interrupt-on-change on pin a2
I tryed to do so but the interrupt rutine didnt trigger
how do i use it?
chava
Ttelmah
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Re: push button
PostPosted: Fri Feb 27, 2004 3:09 am     Reply with quote
chava wrote:
hi all
I want to implement a push button with pic 16f630 using the interrupt-on-change on pin a2
I tryed to do so but the interrupt rutine didnt trigger
how do i use it?
chava

General comment with 'interrupt on change', is that you must read the port, before setting the interrupt (and also you must read the port inside the interrupt handler).
So try this (do a read on the port before setting the interrupt), and see if it then works.

Best Wishes
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