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Can't output on PIN_B3 ===> CCP problem

 
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weg22



Joined: 08 Jul 2005
Posts: 91

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Can't output on PIN_B3 ===> CCP problem
PostPosted: Tue Mar 21, 2006 12:55 pm     Reply with quote
Hi all,

I am using a PIC16F87 which has an option to use either PIN_B0 or PIN_B3 for the CCP interrupt. I am not using PIN_B3 for CCP, but do need to use it as an output pin. All I am trying to do is output_high on PIN_B3 and it's not working. I tried using the #fuses CCPB0 declaration, but that doesn't seem to be working either. I can successfully output on all other pins (I haven't tried B0) except for B3. My code is attached below. Thanks in advance!

Code:

#include <16F87.H>
#include <stdlib.h>

#fuses HS,NOWDT,NOPROTECT,PUT,CCPB0
#use delay(clock=10000000)

main()
{
      SET_TRIS_B(00010011);

      output_high(PIN_A2); delay_ms(1500);
      output_low(PIN_A2);

      while(1)
      {
            output_high(PIN_B2);
            output_high(PIN_B3);
            output_high(PIN_B5);
            output_high(PIN_B6);
            output_high(PIN_B7);
       }
} // end of main
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Tue Mar 21, 2006 12:58 pm     Reply with quote
This is a FAQ question. Look in the CCS FAQ, here:
http://www.ccsinfo.com/faq.php

In the Input/Output section, read the question on:

Why isn't PortB, pin 3, working?
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