Problem with I2C EEPROM addressing


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  1. #1
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    On the 24LC256, Pin1 (A0) is the low order bit. You have them reversed in the picture.

    Red is the actual addresses.

    <img src="http://www.picbasic.co.uk/forum/attachment.php?attachmentid=2794" />
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    DT

  2. #2
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    That was IT!!!! You guys are so awesome!!! Thanks! It works perfectly now... Funny how that one was the only one where it mattered that I had it backwards. I had the right addresses (except one) but they were not assigned to the EEPROMs that I thought they were...

    Thanks again!

  3. #3
    skimask's Avatar
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    Aw crap! I poured over that schematic and missed it...
    Chalk another one up for DT...

  4. #4
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    Cool

    Quote Originally Posted by skimask
    I poured over that schematic ...
    What a coincidence! &nbsp;I poured a beer while looking over that schematic.

    Maybe it helped?
    <br>
    DT

  5. #5
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    Atom058, Why all the hardware? Why not just use an 24LC1025?

    Dave Purola,
    N8NTA

  6. #6
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    Dave - Yes, I could have done that, but I have a bunch of these and size was not a problem. I will certainly consider that for the future... Thanks!

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