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Author Topic: Working on a text LCD  (Read 2149 times)
gigabite
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« on: April 12, 2009, 09:29:04 PM »

Ok I have a text based LCD, it has a PT 6315 controller [ data sheet : http://www.datasheetcatalog.org/datasheet/PrincetonTechnologyCorporation/mXvqurs.pdf ] - I was wondering if there is anyway I can control it (I just want it to do some very simple things - e.g light up the eject button and say 'EJECT').

To bad it's not a HD4770 controller as there is heaps of documentation on that ( I have a text based LCD with that controller also but it won't work for this project - to big). This is not a standard text LCD, it's one from a DVD player so it has...'parts' already on there (e.g USB/CD/DVD/REC) but i'm not asking anymore from what it can do normally (I just need to be able to do that, without hooking it up to the DVD player).  If need be I can take pictures of the whole PCB and LCD if this can actually get off the ground

Any help would be much appreciated (or good websites but I haven't been able to find any)

thanks
gigabite
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zillionare
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« Reply #1 on: April 13, 2009, 01:51:46 AM »

pics?
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Rattle
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« Reply #2 on: April 13, 2009, 02:40:43 AM »

Get the real datasheet and it will tell you how to control it, that's what datasheets are for.
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gigabite
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« Reply #3 on: April 13, 2009, 02:47:30 AM »

Sure here you go: (excellent quality - thanks to my new 10.1 mp Cybershot  Grin)

http://i165.photobucket.com/albums/u69/bLuEb0x/DSC00065.jpg
http://i165.photobucket.com/albums/u69/bLuEb0x/DSC00067.jpg
http://i165.photobucket.com/albums/u69/bLuEb0x/DSC00068.jpg
http://i165.photobucket.com/albums/u69/bLuEb0x/DSC00070.jpg
http://i165.photobucket.com/albums/u69/bLuEb0x/DSC00072.jpg

The extra PCB coming of it is the power button, I have done a probe of all the pins if anyone needs it

Any help appreciated, thanks

gigabite

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itsfakemon
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« Reply #4 on: April 13, 2009, 07:53:36 AM »

wait a f***ing second, didn't you punk bitch make fun of my school project last year?
you know, when I controlled an lcd using an fpga + usb? guess it won't pay out to be so loudmouthed after all Smiley
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excuse me, I'm French...
itsfakemon
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« Reply #5 on: April 17, 2009, 04:38:01 PM »

looking at the datasheet (yeah, I know, I'm bored), I realized that this "project" is way too much for you
I mean, considering you can't even read a datasheet... this most likely also means you don't know what or how to use a microcontroller
but seriously, how much more obvious can it be when you read "CLK", "DOUT" and "DIN"? maybe it's not documented, but with a little try-and-fail, it doesn't take a rocket scientist to get to the bottom of it

and on top of that: I'm French Smiley (which you pointed out once or twice to be a bad thing, iirc)
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gigabite
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« Reply #6 on: April 17, 2009, 10:00:14 PM »

Quote
......how to use a microcontroller.......

that is why I am asking for help  Smiley I did read the data sheet and tried to understand it (I think I understand some of it but I don't even know what to do from there is the problem).  I would try to do something (I don't care if it doesn't work) but I don't even know where to start with that - I don't (think) I need to be spoon fed [as what I want to do seems very achievable] I just need a little help/explanation and maybe some good reading links...if you don't want to help that's fine

gigabite
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itsfakemon
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« Reply #7 on: April 18, 2009, 01:32:36 PM »

I can't kick a dead person in the face... so I suppose I'll give you hints on where to begin:

- a) learn C or a similar language with which you can use portio
 or b) get an old computer running dos and learn how to code in assembly (it's pretty easy, all you need is mov, out and some others like and, or, not)

- get portio and embed it into your app
- read up on how to use lpt (0x378 up to 0x37A? I can't remember the exact addresses, been too long), including its modes (EPP, etc.)

to test your "experiments", you can plug leds in series with 150ohm resistors (around that value, maybe even 300ohm) from pins 2-9 (correct? idk) to 18-25 (again, idk if this is correct, look up a pinout)


once you know how to output and input stuff from/to lpt, you can post back and ask for moar help
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excuse me, I'm French...
gigabite
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« Reply #8 on: April 18, 2009, 11:26:35 PM »

ahh no thanks, screw that end of topic...

gigabite
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itsfakemon
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« Reply #9 on: April 19, 2009, 02:58:42 AM »

look at the miserable cunt,
giving up before it's even begun
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gigabite
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« Reply #10 on: April 19, 2009, 08:29:19 AM »

yeah, well, it's just, I am not a programmer (and I don't want to learn any languages) - I can't describe it very well but you want me to basically learn a whole language (or even parts of it, from scratch) then saying just play around with it until you get it...that's the best way I can sort of describe it. Don't worry about it, thanks for the help though  Undecided

gigabite
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MichaelCasson
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« Reply #11 on: April 19, 2009, 10:45:24 AM »

The Arduino platform is the easiest way to break into microcontroller programming.  Open-source with lots of libraries available for common things, such as driving LCD displays.

http://www.ladyada.net/learn/arduino/lcd.html
http://arduino.cc/en/Reference/LiquidCrystal?from=Tutorial.LCDLibrary
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notherbastard
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« Reply #12 on: April 21, 2009, 06:21:35 AM »

As noble and magnanimous a gesture it is , Please, dont feed the monkeys.  Wink
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