Problems with white blocks on a blue background LCD

Discussion in 'Embedded Systems and Microcontrollers' started by hunterage2000, Feb 19, 2013.

  1. hunterage2000

    Thread Starter Active Member

    May 2, 2010
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    Hi, I have a problem with white blocks on a blue background LCD module. I have uploaded some code to my microcontroller and at first the row of blocks were black then I adjusted the contrast and they turned into white blocks.

    Does anyone know what the problem might be? The ports are setup as the attached and the code doesnt return any errors.
     
  2. THE_RB

    AAC Fanatic!

    Feb 11, 2008
    5,435
    1,305
    Standard symptom of the LCD has not initialised properly.

    You need to fix your LCD init code, or maybe check the wiring as it can't initialise if the wires are wrong. :)
     
  3. hunterage2000

    Thread Starter Active Member

    May 2, 2010
    400
    0
    Do you know where I can find the PIC assembly version? The datasheet for it only shows the initialise code for a 8051 Microprocessor. I just need something to show that its working.
     
  4. ErnieM

    AAC Fanatic!

    Apr 24, 2011
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    1,605
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