LCDOUT custom commands - how to?


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  1. #19
    Join Date
    Aug 2006
    Location
    SWITZERLAND (french speaking)
    Posts
    938


    Did you find this post helpful? Yes | No

    Default Contrast to be set - yes, but how?

    I've got an answer from ELECTRONIC ASSEMBLY (EA). They say this display is fully HD4470 compatible.

    So, until the contrast (all the display in fact) is not initialised properly, nothing will happen on the display.

    I've got this table extracted from the PDF file I inserted in my first post:


    This example is for a 8 bits display. I would prefer to use it with 4 bits but if it is easier to start this way...

    Can somebody tell me what syntax I have to use to modify the contrast settings?

    Is it LCDOUT $FE, $74? I tried this already but nothing happened.

    I don't understand how to use this table. Could somebody explain me please?

    BTW, EA also sent me some assembly examples (see attachments); for those who understand this, it may help, maybe. Unfortunately, I don't know assembler...

    Mister_e, see the picture? Thanks you, again ;-)
    Attached Files Attached Files
    Last edited by flotulopex; - 26th November 2006 at 12:34.
    Roger

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