OT: KS0108 Graphics LCD control question


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  1. #1
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    Default OT: KS0108 Graphics LCD control question

    Hi all,
    Just a quick question regarding the control of a graphics LCD display using dual KS0108 controllers.

    Is it acceptable to enable both halves of the display and send data / instructions to both controllers at the same time, or should each side be written to separately?

    In writing instructions or graphics such as simple lines, etc - it would take less code to write both sides at the same time - but i don't want to kill the controllers. The data sheets were fairly sparse as far as useful information goes :-(

    Thanks,
    Arch

  2. #2
    Join Date
    Feb 2004
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    I don't know the details of the Display you are using, but:

    as long as you enable both the controllers only when writing to the controller there shouldn't be a problem.
    (I have done this a number of times on dual controller character displays)

    But never try to read from both the controllers at the same time if they are sharing the "Data-Bus"!

    regards

    Ralph

  3. #3
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    Thanks Ralph!
    Great point about reading back data - I had not even thought of that.

    Thanks again,
    Arch

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