Display "0" on LCD


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  1. #8
    Join Date
    Dec 2005
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    Quote Originally Posted by skimask View Post
    Just use the code in the post above, and only that code, nothing else (except for maybe some initialization code)
    What else are you running, or trying to run at the same time?
    It sounds to me like you've got other things going that we're all not able to see for some reason or another. All this talk about a 'terminator' basically doesn't really apply. There is no real 'terminator' to speak of like a 'null' when using strings in VB or the like.
    What version of PBP are you using?
    OK, I did just the code below. I added the Pause 500 to see what it was doing, and still get a blank screen on each number ending in zero.

    LCDONOFF VAR PORTB.7
    High LCDONOFF

    i VAR WORD
    For i=0 TO 10000
    LCDOut $fe, $80, DEC5 i
    Pause 500
    Next i


    The reason that I got hung up on the terminator thing is becasue I am storing as much string data as I can in EEPROM, and then I loop through and do a READ 8 times (2x8 LCD) to get the string. Somehow, like magic :-), when it hits the zero on the strings that are less that 8 characters, it knows that's the end of the string. Here is part of how i have it layed out:

    EEPROM 36,["1",".","5"," ","S",0] '1.5 S
    EEPROM 42,["1","5"," ","S",0] '15 S
    EEPROM 47,["2","0"," ","S",0] '20 S
    EEPROM 52,["1"," ","M",0] '1 M
    EEPROM 56,["2"," ","M",0] '2 M
    EEPROM 60,["5"," ","M",0] '5 M
    EEPROM 64,["V","e","r","y","H","i","g","h"]
    EEPROM 72,["S","l","a","v","T","e","s","t"]


    <B>I use the melabs programmer version 3.31 (it also did this on an older version that I used to use). I write the code in CodeDesigner Lite and PBP is version 2.46a. Oh, and the chip is a 16F648A.</B>
    Thanks,
    Gary
    Last edited by g-hoot; - 14th May 2008 at 13:30.

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