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Thread: LCD controller hookup advice

  1. #1
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    LCD controller hookup advice

    I got my hands on one of these

    -

    It's capable of driving a few different types of LCD panels, it has a C&T 69000 CRT/Panel display controller. Here's the possible configurations-



    I also managed to find a few Toshiba LTM12C275A 800x600 LCD panels with inverters, here's the pinout for them-


    I think I have it figured out, it looks like the 18bit color tft setup is what i need. what I'm not sure about is which output should I use for pin 2 NCLK- sampling clock and pin 26 ENAB- compound sync signal. Anyone have any ideas on how to keep this thing from smoking when I power it up?

    I want to put this in my car, I have an interface and software for the engine management computer. I'll probably wreck the car playing with the computer at 70 mph

  2. #2
    Newbie awh4992's Avatar
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    coolness, lots of these on ebay right now hehe. this is a weird display you have here as it doesn't have seperate horizontal and vertical sync pins like most other tft diplays i've seen. in other words, this display may not work on the board you have. ya can try this, but it is possible garbage'll appear on the display. anyways, pin 2 on ur toshiba display goes to pin 35 on your sbc, and pin 26 on the toshiba display goes to pin 37 on the sbc. if that doesn't work (make sure your inverter is actually on before deeming this as not working), try putting pin 26 on the display to pin 38 on the sbc. if that doesn't work, then u should find a different display . by the looks of things that compound sync signal somehow combines vsync and hsync. looking @ the timing diagram on the toshiba datasheet kind of looks like hsync and vsync are OR'd together, but i'd hafta look @ a timing diagram of whats coming out of ur sbc to determine what kinda logic is needed to combine hsync vsync and possibly data enable (DE) into 1 signal for the toshiba display. it'd basically be easier to get a sharp, nec, or LG/phillips display as those you can connect pin for pin to your sbc. don't get the nec nl6448ac20-02 that's on ebay. it's only 12bit color, so in windows that kinda limits you to 256 colors, unless you want things looking hideous when switched to 16bit color. hope this thing'll work for ya

  3. #3
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    Thanks for the reply. I searched " C&T 69000 LTM12C275A" and came up with a mess of data sheets for single board computers using this panel and controller. Sure enough, they all show pin 2 NCLK goes to pin 35 SHFCLK and pin 26 ENAB goes to pin 37 M/DE. SO I just have to repin the connector, no big deal but it looks like it should work.


    I got this SBC off ebay, it's coming with a backplane that has a single pci slot. That's where my sound card will go, the SBC has just about everything else I can think of. I'll get online with my cellphone through the USB, or maybe a good 802.11 usb adapter. Someone here made an awesome console for their ride, I may do something like that.

    It's going in an 89 IROC that I just installed a 95 350 LT1 in.

    Is it possible to add a touchscreen to this panel?

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    BTW, there's an hour left on

    this one

  5. #5
    Newbie awh4992's Avatar
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    oh that one looks cool too. i already have a sbc, but it's a bit slower than yours or the one your link goes to. mine's a arcom sbc-gxm, so it has a 233mhz national geode processor on it. its got the same ct69000 graphics as yours does and has the lcd header, which is nice. the built in touchscreen controller is nice too hehe so ya you can put a touchscreen overlay on your lcd. the touchscreen really has nothing to do with the display, you just have to get one that is the correct size (a little bigger than the viewable part of the screen) and you'll hafta get a controller for it too. i got my touchscreen overlay from a guy here on the forums, i forget his name, but there's a post going that's called "fs touchscreens" or something like that. he sells the controllers as well. good luck on all that

  6. #6
    Newbie awh4992's Avatar
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    ah ha, his name's "infrared"

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    I have a few Mitac MSC 251 SBC's with pentum 233 MMX. they do everything pretty good except there's no USB, PCI and the hard drive support is pretty bad. I have a few old Yamaha sound cards, I set one up in my garage in an old AT case to play MP3's-



    I put another in the kitchen for the lady of the house, made the case out of wood. These things stream the MP3's over our network with winamp.



    I also have a lead on some Mitac MSC-1600a SBC's but they're obsolete and it's hard to get drivers and stuff for them, The MSC-1600a can take a P3 with a 133 fsb, they have lan and sound in them, via chipset and they're 1/2 size. I don't know if they can be set up for ATX power. the Boser 6037 has the ATX power setup so it will be easier to set up a power controller. I'm going with a standard ATX supply and a 400W inverter right now. The motor in the camaro came from a station wagon, it has a huge alternator. I want 110V in the car anyways.

    Wiring that LT1 into the car took a long time, I wanted to do it right.



    Here's the finished product, it started right up and went into closed loop. I almost went blind wiring that thing.



    You guys are all really cool, no one here seems to be afraid of electricity or modifying things. I wish I found this place sooner

  8. #8
    Newbie awh4992's Avatar
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    ya wiring stuff up is fun, till ya make a mistake and then something doesn't work thats cool that ur car runs after all that rewiring lol. i hate car wiring. and it looks like ur pretty good w/ workin w/ wood and such. nice job.

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