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lcdmania
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PostPosted: Tue May 18, 2004 21:50 
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Joined: Sun May 02, 2004 4:28
Posts: 19
Location: Brazil
Henri wrote:
lcdmania wrote:
I bought one lcd and connector from magboss and received it.
I´m from Brazil.
The LCD is Epson and connector is very small not it's easy to solder. :(

Best regard

I noticed there are two different products:
"Original LCD Mobile Display for Nokia 6100 / 6610 / 7250"
and
"Original LCD Mobile Display for Nokia 6610"

Which one did you order ?

If I had to guess from those I think the "6100 / 6610 / 7250" display might be Epson and "6610" Philips. But this is just a guess and I'd like to know which one you got ?


DaveE:
Have you already got further with the display ?


I bought "Original LCD Mobile Display for Nokia 6100 / 6610 / 7250"

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lcdmania
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PostPosted: Tue May 18, 2004 21:54 
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Joined: Sun May 02, 2004 4:28
Posts: 19
Location: Brazil
looking wrote:
lcdmania wrote:
I bought one lcd and connector from magboss and received it.
I´m from Brazil.
The LCD is Epson and connector is very small not it's easy to solder. :(

Best regard



How much were the shipping costs?
How did you pay, via credit card?

Regards,
looking


I pay U$ 4,89 for Shipping and used Mastercard credit-card from ALLPAY.PL

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Schijf
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PostPosted: Fri May 21, 2004 10:02 
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Joined: Mon Nov 18, 2002 11:04
Posts: 37
Location: The Netherlands
DaveE wrote:
could someone point me in the right direction with regards to the initilisation sequence of the PCF8833?

RESET -> BSTRON -> NORON -> DISPON

I'm getting nowhere!


Here's the init part of my 'testsuite'. Should be clear what it does. Btw, don't use sleep in you're own code. For testing purposes it works, but that's about it...
Code:
   // display stuff
   WriteCommand( PCF8833_SWRESET );        // soft reset (display in sleep mode, booster off
                                              and command register in default state)
   WriteCommand( PCF8833_SLEEPOUT );       // sleep_out
   WriteCommand( PCF8833_DISPON );         // display on
   WriteCommand( PCF8833_BSTRON );         // booster on (turn on LCD supply generation
                                              circuitry)
   WriteCommand( PCF8833_MADCTL );
   WriteData( PCF8833_BGR );

   Sleep( 50 );                           // delay to make sure all voltages are stable

   SetContrast( 65 );                     // set contrast


made code better readable

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Last edited by Schijf on Tue May 25, 2004 15:17, edited 3 times in total.

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Truzzone
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PostPosted: Tue May 25, 2004 15:01 
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Joined: Mon May 24, 2004 15:42
Posts: 14
Location: E1 D1v1n0
Excuse me but I haven't still understood which pin order (on the lcd) I connect to the cable of parallel port and which is the program to work with this lcd? :?:
Sorry for my bad english :oops:

by Truzzone :!:
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Henri
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PostPosted: Tue May 25, 2004 17:07 
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Joined: Sun May 05, 2002 22:05
Posts: 2063
Location: Lappeenranta, Finland
There are no published schematics for connecting the display to LPT port and neither are there programs.

Maybe later.
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Rabidus
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PostPosted: Fri Jul 02, 2004 22:28 
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Joined: Fri Jul 02, 2004 22:15
Posts: 3
Location: Finland, Kiuruvesi
Maybe later?

I broke up my telephone at mid-summer festival (in finnish we call that as "juhannus"). I ran into water with my telephone (7210), and it kinda broke up :(. Next day i tried to start up that, and it did, but led's are on all the time, so this would be great lcd to computer. LCD-screen works perfectly.

so, some schematics would be good (usb -> lcd), and some basics with programming (i "can" handle c++), so i can get started.

You guys are doing great work!

And i'm very sorry about my english, i hope you understand this ;)
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Henri
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PostPosted: Mon Jul 05, 2004 12:03 
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Joined: Sun May 05, 2002 22:05
Posts: 2063
Location: Lappeenranta, Finland
Have you been able to determine if your display is the Philips or Epson model ?

There was some schematics for the Philips display using USB. Using that schematic the display is supposed to be driven using the bitbang mode of the FT245BM chip. More information and programming examples of the bitbang mode are in the FT245BM datasheet and application notes at FTDI website.
Information about handling the lcd controller is in the datasheets with links given in the beginning of this topic.

I haven't had time to work with this since my last update earlier in this topic but I'll continue some day.
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Rabidus
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PostPosted: Mon Jul 05, 2004 23:08 
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Joined: Fri Jul 02, 2004 22:15
Posts: 3
Location: Finland, Kiuruvesi
Okay. I think that my lcd screen is epson, beacause my pcb colour is green, so it'll be much harder than it could be.

Goldplatet contacts are surely very, very small, so soldering will be _hard_ to me. I took some pictures with my scanner, here's first and second picture.

Okay, even if i can solder wires into this (i have little "cheat" for this ;)), i have no idea what to do next. Which pins are correct? "For the wiring, click here and the wiring should be clear." -Yeah right ;) How can I know where is Vlogic, nRESET, SDATA, etc.?

It would be useful too if you guys (especially Schijf) send some testing tips (how to make sure that soldering was done succesfully).

That's it for now. And thanks :)

EDIT: Oops. I didn't notice that "note 3" on that wiring page, so i don't have no idea what to do now ;)
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Schijf
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PostPosted: Thu Jul 08, 2004 16:47 
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Joined: Mon Nov 18, 2002 11:04
Posts: 37
Location: The Netherlands
Simple tip for checking connections:
Use a multimeter to check if your soldering was succesfull by measuring at the appropriate USB I/O pin at one side and the mini-socket of the LCD on the other side.

This way you don't need to touch the soldered contacts as they're very fragile.

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Rabidus
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PostPosted: Tue Jul 13, 2004 22:19 
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Joined: Fri Jul 02, 2004 22:15
Posts: 3
Location: Finland, Kiuruvesi
Some schematics maybe someday?
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Schijf
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PostPosted: Wed Jul 14, 2004 8:39 
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Joined: Mon Nov 18, 2002 11:04
Posts: 37
Location: The Netherlands
I'll work out the proof-of-concept schematic. Replace the part 'USB module' by loose components.

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mippen
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PostPosted: Tue Jul 20, 2004 22:55 
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Joined: Tue Jul 20, 2004 22:27
Posts: 8
Location: Sweden
I found out that my LCD's, have a couple of them, all are Epson.
I guess these are harder to use.

My goal is to be able to hook it up against a PIC microcontroller but the first step will be to hook it up against the USB controller.

Is there any testsoft that can be runned on the PC to se if the LCD and USB connection works?

Does anyone of you know if the FTDI Chip "FT232BM" could work.
This chip is very common in USB dockingstations etc and I have access to one of these.

I guess we are a couple that would really like somekind of tutorial in the programming steps for the LCD. Power up - Init - Putting text on lcd - etc.

Great job though!
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Henri
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PostPosted: Mon Jul 26, 2004 10:28 
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Joined: Sun May 05, 2002 22:05
Posts: 2063
Location: Lappeenranta, Finland
I'm sure there will be more information coming later. Currently I'm just busy with other things so these displays have been on the wait list.

If I remember correctly FT232BM also has the bit-bang mode like FT245BM so it could work.
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mippen
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PostPosted: Mon Jul 26, 2004 10:33 
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Joined: Tue Jul 20, 2004 22:27
Posts: 8
Location: Sweden
Thanks for the information Henri!

Have you tested the Epson display anything?
I would like to know If I could use them or not.

It looks like most of the Nokia phones nowdays uses the Epson unit.
The displays I have comes from a phone-repair friend and he hasn't find anything else then this one.

How easy is it to bitbang the FT232BM chip?
I havn't find any useful information in the specifications.
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BoberM
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PostPosted: Tue Jul 27, 2004 10:58 
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Joined: Fri Apr 16, 2004 12:42
Posts: 2
Schijf wrote:
This way you don't need to touch the soldered contacts as they're very fragile.


Hello,

If someone interested - I have few proto boards left.

All with tiny connectors soldered :D

All you have to do is put your lcd and board can be used with
universal board.

dmalec@tlen.pl

Best regards,

BoberM
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