Beginer problems

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  1. - 2nd February 2010, 18:52 #1
    luxornet's Avatar
    luxornet
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    Default This is my code and schematics

    '************************************************* ********
    '
    ' LED FLASHING PROGRAM
    ' ======================
    '
    ' This program flashes an LED connected to port RB0 of PORTB. The
    ' LED is flashed with 1 second intervals.
    '************************************************* ************
    '
    LED VAR PORTB.0 ' Define RB0 as LED
    '
    ' START OF MAIN PROGRAM
    '
    TRISB = 0 ' Set PORTB pins as outputs
    AGAIN:
    LED = 1 ' Turn ON LED
    PAUSE 1000 ' Wait 1 second
    LED = 0 ' Turn OFF LED
    PAUSE 1000 ' Wait 1 second
    GOTO AGAIN ' Repeat forever
    END ' End of program
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  2. - 2nd February 2010, 19:17 #2
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    Lightbulb

    Ok Luxor

    Bingo : You simply forgot to write the chip A/D relevant registers config and define I/Os for your chip ...

    Code:
    DEFINE OSC 4             ' Default Osc freq
DEFINE OSCCAL_1K 1   ' retrive the trimming value

CMCON		= 7 ' disable Analog comparators

GPIO 		= %00000000 'All pins LOW at startup

TRISIO 		=%00101000  'set GPIO3 & GPIO5 as inputs
    so, add those lines to the top of code.

    AND do not forget to connect the RESET PIN ...

    a look to the 629 Datasheet will help !

    Alain
    ************************************************** ***********************
    Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
    ************************************************** ***********************
    IF there is the word "Problem" in your question ...
    certainly the answer is " RTFM " or " RTFDataSheet " !!!
    *****************************************
  3. - 3rd February 2010, 05:52 #3
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    luxornet
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    Default Thank you very much for your help

    I'l try as soon as possible.
    Thanks again.
  4. - 4th February 2010, 19:06 #4
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    Default At last, the project is finished

    I had many problem and brain damage because I used MPASM as assembler instead of PM.EXE (I used MicroCode Studio too). Simply line like
    Code:
    @ device  pic16F628, intrc_osc_noclkout
    gave me strange error codes...
    But now, the project is working. I hope somebody find it useful.
    Thanks all of you for help.

    Code:
    '************************************************* ********
' LED FLASHING PROGRAM
' ======================
' PIC16F628 20I/P
' Pic Basic Pro Compiler 2.45, (c) 1998, 2004 microEngineering Labs, Inc.
' Assembler used is PM.EXE, provided with microEngineering Labs PICBasic Compiler
'
' This program flashes an LED connected to port RB0 of PORTB. The
' LED is flashed with 1 second intervals.
'************************************************* ************
'
INCLUDE "modedefs.bas"
'
@ device  pic16F628, intrc_osc_noclkout; Use internal oscilator
@ DEVICE pic16F628, MCLR_OFF ; Turn off internal reset (default) and leave RA.5 as an input
'
DEFINE OSC 4             ' Default Osc freq
CMCON     = 7          ' PortA = digital I/O
VRCON     = 0          ' A/D Voltage reference disabled
TRISB     = %00000000  ' PORTB all pins outputs
'
' Define RB0 as LED (pin number 6):
LED VAR PORTB.0 
' VSS - pin number 5  (Ground)
' VDD - pin number 14 (+5V)
' MCLR (pin number 4) pulled-up to VDD by 4.7Ko resistor 
'
'program start
AGAIN:
    LED = 1 ' Turn ON LED
    PAUSE 1000 ' Wait 1 second
    LED = 0 ' Turn OFF LED
    PAUSE 1000 ' Wait 1 second
    GOTO AGAIN ' Repeat forever
END ' End of program
  5. - 4th February 2010, 21:00 #5
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    Wink

    Hi,Luxor

    I see on your listing you missed that :

    http://www.melabs.com/downloads/P245A1.EXE

    this is an official patch for your PBP 2.45 version ...

    Alain
    ************************************************** ***********************
    Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
    ************************************************** ***********************
    IF there is the word "Problem" in your question ...
    certainly the answer is " RTFM " or " RTFDataSheet " !!!
    *****************************************
  6. - 5th February 2010, 05:55 #6
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    Default


    Thank you very much, Alan.
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