RB0 interrupt and toggle issue

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  1. - 1st May 2009, 01:01 #1
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    Quote Originally Posted by Macgman2000 View Post
    OK it compiled but still does not work. Meaning....A key press yeilds no toggling of ports. It gets to the interrupt (I placed a porta.0 = 1 flag) so I know that part is working just like the PBP interrupt handler when any key is pressed. The problem is nothing toggles or the payload value of the keypress is corrupted. I inserted pause 1000 for debounce but that didn't work either. It seems to be blasting right by the conditional statements and exiting the interrupt.

    Man this is frustrating!
    As I said before I have had toggle not work. Perhaps you can use a bitwise ^ to flip the bit. Try looking at the variables contents using a serout or debugout and see if it contains the value it is supposed to have. I will look at this tonight after I come home from dinner.
    Last edited by Archangel; - 1st May 2009 at 01:14.
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  2. - 1st May 2009, 01:14 #2
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    Toggle doesn't work because you have'nt disable the ADCs.
    Steve

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  3. - 1st May 2009, 01:24 #3
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    Quote Originally Posted by mister_e View Post
    Toggle doesn't work because you have'nt disable the ADCs.
    Hahaha I just stumbled across one of Melanies posts mentioning that, http://www.picbasic.co.uk/forum/showthread.php?t=977
    This chip has CCP module on portC. Good call Steve.
    Last edited by Archangel; - 1st May 2009 at 01:29.
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  4. - 1st May 2009, 02:13 #4
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    It shouldn't affect portE which is where 2 of my relay pins are. I will try it anyway and let you know. Thanks for the suggestion!

    Nick
  5. - 1st May 2009, 12:12 #5
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    Where is the PIC populated? Is it on any Microchip board?

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  6. - 1st May 2009, 16:57 #6
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    Quote Originally Posted by Macgman2000 View Post
    It shouldn't affect portE which is where 2 of my relay pins are. I will try it anyway and let you know. Thanks for the suggestion!

    Nick
    Sure enough it will as PORTE<2:0> are multiplexed with AN<7:5>
    Steve

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  7. - 2nd May 2009, 03:02 #7
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    I went through and disabled everything and then some on portA and PortE. No dice. portA and PortE change from low to high but does not toggle. In fact it undoes any set pins on portA and E. It does not alter them at the bit level individually. My desired function is to latch individual pins in either 1 or 0 condition to energize a relay or de-energize it, through the decoding of local switch presses. I need to take a step back or something....thanks for your help guys.

    Nick
  8. - 2nd May 2009, 17:13 #8
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    I repeat my question. Do you have any dev. kit or use your own PCB design?

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