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SX interfacing with Samsung S6B0108 LCD Controller — Parallax Forums

SX interfacing with Samsung S6B0108 LCD Controller

cprincecprince Posts: 5
edited 2008-02-10 02:14 in General Discussion
Hi,

Have anybody ever gotten the SX microcontroller to work with the Samsung S6B0108 LCD controller? I'm trying to use the Lumex LCM-S12864GSF Graphic LCD, 128x64, and I could not get it to display anything. I've already check my wiring. Thank you for your help!

Comments

  • cprincecprince Posts: 5
    edited 2008-02-08 16:34
    I've finally figured it out. Check out the attached code. Sometimes the LCD screen displays garbage after programming with the SX key. If this occurs, just turn off the system, remove the SX key and plug the oscillator in to run without the SX key.
    SRC
    SRC
    LCD3.SRC
    11K
  • cprincecprince Posts: 5
    edited 2008-02-08 16:42
    Forgot to upload the data sheet of the controller chip. The LG128643-SMLYH6V.pdf is the data sheet for another display that uses the same LCD controller chip. It explains things very well.
    pdf
    pdf
    DS_S6B0108_V00.pdf
    120K
    pdf
    pdf
    LG128643-SMLYH6V.pdf
    140K
  • PJMontyPJMonty Posts: 983
    edited 2008-02-10 00:08
    Cprince,

    So, do you have a plan of action for the further work on this LCD? I assume that you plan to get your character graphic data into a table instead of hardcoding them into the source. Personally, I would get the table working as soon as possible. Just upper and lower case letters are going to suck up 416 bytes, not to mention punctuation, etc. Large tables like that will require some smart management to cross page boundaries, etc. Conversely, you could add an I2C EEPROM with the data externally if you need the code space in the SX.

    Keep posting as you get this project further along as it's good information.

    BTW, how do you like the LCD itself? Easy to read? Is it backlit? Does it update quick or have the sort of "fade in" that some LCDs have when you update the image on the screen?

    Thanks,
    PeterM
  • cprincecprince Posts: 5
    edited 2008-02-10 02:14
    Hi PeterM,

    I've stopped working on this project because I'm working on another project. I'm trying to make a simple CNC router out of old scanner and inkjet printer parts. My goal is to be able to make custom PCB board.

    The LCD itself is not too bad. I bought it from ebay for $20. The only thing that really bugs me is that sometimes it displays unintended stuff on the screen. This could be a result of power supply noise or EMI. I don't know about the update speed of the screen because I have not tried to update the display yet. It does have an LED backlit, but I have not tried it yet.
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