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Optrex graphic display DMF-50840-NF-FW — Parallax Forums

Optrex graphic display DMF-50840-NF-FW

JonathanJonathan Posts: 1,023
edited 2009-07-26 21:45 in Propeller 1
Hi All,

Finally got my new off grid living situation under control and have a place to work again! I want to use an Optrex graphics·LCD display, part # DMF-50840-NF-FW. I have found the data sheet, but can't seem to find any information on specific commands. I haven't really worked with graphic displays. Is there any object in the exchange that might work? It's a standard 4 bit parallel interface. I'm going to wire it up and see if I can get it to do anything, but I thought I'd check here and with any luck avoid many hours of messing around.

Thanks!

Jonathan

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www.madlabs.info - Home of the Hydrogen Fuel Cell Robot

Comments

  • Erik FriesenErik Friesen Posts: 1,071
    edited 2009-07-26 01:23
    You could make it work with enough time, but there is code on the exchange that will run ks0108, s6b0724, t6963, and others with a 6800 style parallel interface. Getting an LCD to come to life is not a trivial task the first time around, and most of the time there will be thoughts of "this lcd must be defective"

    If you do decide to try it, remember that getting the screen to show contrast should be your first step. I think that controller has the negative voltage generator built in, so you will need to get the caps set up right I think.
  • JonathanJonathan Posts: 1,023
    edited 2009-07-26 15:14
    Yup, that was my thought as well. However, it turns out that you can't see it at all without the CCFL backlight. I tried with a strong backlight, but no luck. I ordered a CCFL PSU from all El;ectronics, so when that arrives I'll try again. Be nice to get it to work, HSC electronics has 'em cheap. I just wish I could get my hands on a command set.

    Thanks

    Jonathan

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    www.madlabs.info - Home of the Hydrogen Fuel Cell Robot
  • jazzedjazzed Posts: 11,803
    edited 2009-07-26 17:34
    Have you seen this? www.optrex.com/products/partdetail.asp?PartNumber=DMF-50840NF-FW-AUE-BIN
    Follow the Avnet link and you won't have to send your email address for the "specification" ... see .pdf on Avnet site.

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    --Steve


    Propalyzer: Propeller PC Logic Analyzer
    http://forums.parallax.com/showthread.php?p=788230
  • JonathanJonathan Posts: 1,023
    edited 2009-07-26 21:45
    Hey, Thanks!

    I had seen that page and downloaded the Specs PDF. However, I noticed a link for "other app. notes" and there was one that had commands!

    TYVM! A second look never hurts! Now all I need to do is get the CCFL backilight going.

    Jonathan

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    www.madlabs.info - Home of the Hydrogen Fuel Cell Robot
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