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interrupts

 
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cartic



Joined: 16 Nov 2004
Posts: 8

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interrupts
PostPosted: Mon Dec 13, 2004 4:16 pm     Reply with quote
I am using CCS PCW compiler and PIC 16F873. Is there any way that I can create an interrupt that using a genral purpose I/O pin. In my case, event in RA3 pin should create an interrupt. I found the commands int_ext, in_ext1,in_ext2. I could not get the explanation of those from the manual. Will those functions in anyway be useful for this purpose or is there any other function for this purpose. Any help or suggestion is welcome.
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Karthik
Mark



Joined: 07 Sep 2003
Posts: 2838
Location: Atlanta, GA

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PostPosted: Mon Dec 13, 2004 5:04 pm     Reply with quote
RB0 is the only pin for an external interrupt. Refer to the datasheet for the PIC to see what other interrupts you have available. But to answer your question, no you cannot just make any input generate an interrupt.
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