Help Pic16f628a

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  1. - 26th August 2008, 20:24 #1
    gadelhas's Avatar
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    Default Help Pic16f628a

    Hi everyone;

    I'm trying to program a PIC16F628A with internal oscilator and no MCLR Resistor, however, it does not Work, and i donīt know what i'm doing wrong; can you help me ?

    Here goes the code;

    @ DEVICE pic16F628A, INTRC_OSC_NOCLKOUT
    @ DEVICE pic16F628A, WDT_ON
    @ DEVICE pic16F628A, PWRT_ON
    @ DEVICE pic16F628A, MCLR_OFF
    @ DEVICE pic16F628A, BOD_OFF
    @ DEVICE pic16F628A, LVP_OFF
    @ DEVICE pic16F628A, CPD_OFF
    @ DEVICE pic16F628A, PROTECT_OFF


    '76543210
    TRISA = %00000000
    TRISB = %00001110
    CMCON = 7
    VRCON = 0



    Led1 VAR TRISB.6
    Led2 VAR TRISB.5
    Led3 VAR TRISB.4


    Main:
    HIGH Led1
    PAUSE 2000
    LOW Led1
    HIGH Led2
    PAUSE 2000
    LOW Led2
    HIGH Led3
    PAUSE 2000
    LOW Led3
    Goto Main


    END


    Regards
    Gadelhas
    Last edited by gadelhas; - 26th August 2008 at 21:28.
  2. - 26th August 2008, 20:57 #2
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    Default

    You wrote INTOSC_OSC_NOCLKOUT

    Shouldn't it be INTRC_OSC_NOCLKOUT

    Unfortunately, mistakes and typo's in DEFINE statements rarely produce compiler errors, so it's worthwhile double checking you have those correct.

    Where can you find the correct settings you might ask... see this thread...

    www.picbasic.co.uk/forum/showthread.php?t=543
  3. - 26th August 2008, 21:17 #3
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    Quote Originally Posted by Melanie View Post
    You wrote INTOSC_OSC_NOCLKOUT

    Shouldn't it be INTRC_OSC_NOCLKOUT

    Unfortunately, mistakes and typo's in DEFINE statements rarely produce compiler errors, so it's worthwhile double checking you have those correct.

    Where can you find the correct settings you might ask... see this thread...

    www.picbasic.co.uk/forum/showthread.php?t=543

    Melanie; thanks for answer, but unfortunately, i made that change, but still not working!

    Can you see if theres anything wrong or missing, again?

    Regards
    Gadelhas
  4. - 26th August 2008, 22:11 #4
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    Quote Originally Posted by gadelhas View Post
    Melanie; thanks for answer, but unfortunately, i made that change, but still not working!
    Hi gadelhas,
    Could you please define " not working"?
    If you do not believe in MAGIC, Consider how currency has value simply by printing it, and is then traded for real assets.
    .
    Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants - but debt is the money of slaves
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  5. - 26th August 2008, 22:14 #5
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    Quote Originally Posted by Joe S. View Post
    Hi gadelhas,
    Could you please define " not working"?
    Hi Joe;

    Donīt do nothing, all leds off.

    Regards
    Gadelhas
  6. - 26th August 2008, 23:15 #6
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    I found your problem.
    Code:
    @ DEVICE PIC16F628A, INTRC_OSC_NOCLKOUT
@ DEVICE PIC16F628A, WDT_ON
@ DEVICE PIC16F628A, PWRT_ON
@ DEVICE PIC16F628A, MCLR_OFF
@ DEVICE PIC16F628A, BOD_OFF
@ DEVICE PIC16F628A, LVP_OFF
@ DEVICE PIC16F628A, CPD_OFF
@ DEVICE PIC16F628A, PROTECT_OFF


'76543210
TRISA = %00000000
TRISB = %00001110
CMCON = 7
VRCON = 0
DEFINE OSC 4

Led1 VAR PORTB.6
Led2 VAR PORTB.5
Led3 VAR PORTB.4


Main:
HIGH Led1
PAUSE 2000
LOW Led1
HIGH Led2
PAUSE 2000
LOW Led2
HIGH Led3
PAUSE 2000
LOW Led3
Goto Main


END
    Simple mistake on your variables you wrote
    Led1 VAR TRISB.6
    Led2 VAR TRISB.5
    Led3 VAR TRISB.4

    should be :
    Led1 VAR PortB.6
    Led2 VAR PortB.5
    Led3 VAR PortB.4
    Last edited by Archangel; - 26th August 2008 at 23:17.
    If you do not believe in MAGIC, Consider how currency has value simply by printing it, and is then traded for real assets.
    .
    Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants - but debt is the money of slaves
    .
    There simply is no "Happy Spam" If you do it you will disappear from this forum.
  7. - 26th August 2008, 23:22 #7
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    Quote Originally Posted by Joe S. View Post
    I found your problem.
    Code:
    @ DEVICE PIC16F628A, INTRC_OSC_NOCLKOUT
@ DEVICE PIC16F628A, WDT_ON
@ DEVICE PIC16F628A, PWRT_ON
@ DEVICE PIC16F628A, MCLR_OFF
@ DEVICE PIC16F628A, BOD_OFF
@ DEVICE PIC16F628A, LVP_OFF
@ DEVICE PIC16F628A, CPD_OFF
@ DEVICE PIC16F628A, PROTECT_OFF


'76543210
TRISA = %00000000
TRISB = %00001110
CMCON = 7
VRCON = 0
DEFINE OSC 4

Led1 VAR PORTB.6
Led2 VAR PORTB.5
Led3 VAR PORTB.4


Main:
HIGH Led1
PAUSE 2000
LOW Led1
HIGH Led2
PAUSE 2000
LOW Led2
HIGH Led3
PAUSE 2000
LOW Led3
Goto Main


END
    Simple mistake on your variables you wrote
    Led1 VAR TRISB.6
    Led2 VAR TRISB.5
    Led3 VAR TRISB.4

    should be :
    Led1 VAR PortB.6
    Led2 VAR PortB.5
    Led3 VAR PortB.4

    Hi Joe;

    I simple just canīt belive it; what a stupid mistake. I never do that.

    It's allready working. Thanks for everthing.

    Regards
    Gadelhas
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