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Jody
Joined: 08 Sep 2006
Posts: 182
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| Nokia 6100 display which controller |
 Posted: Wed Nov 18, 2009 5:33 am |
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Hello,
I am trying to control the Nokia (Sparkfun) display.
One display is broken down. So I decided to take it apart.
I know there are two controller: Epson and Philips.
Take the complete display apart... but found no IC .. some resistors but no IC.....
Does anyone know where the controller is placed????
Regards,
Jody |
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MikeW
Joined: 15 Sep 2003
Posts: 184
Location: Warrington UK
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| Posted: Wed Nov 18, 2009 6:03 am |
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It may be in a chip scale package, in which case it will be under a circular piece of black epoxy, about 10mm diameter.
Either way, you aint gonna do much with it. |
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Jody
Joined: 08 Sep 2006
Posts: 182
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| Posted: Wed Nov 18, 2009 6:43 am |
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| I don't want to do anything with it... just want to know which controller it is and where is it..... |
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Guest
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| Posted: Wed Nov 18, 2009 10:34 am |
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| Check maximum vcc I think it is 3,6V |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Wed Nov 18, 2009 4:40 pm |
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| Quote: | | just want to know which controller it is |
They explain all this on the Sparkfun page for that product. Did you
read it ? They tell you which appnote to read. It's in the list
on this page:
http://www.sparkfun.com/commerce/product_info.php?products_id=569
Use http://www.google.com to search the Sparkfun forum.
(Would be more logical than asking on CCS, no ?)
Use this search string:
| Quote: | | site:forum.sparkfun.com Nokia Knock-Off |
Or this:
| Quote: | | site:forum.sparkfun.com Nokia 6100 |
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bkamen
Joined: 07 Jan 2004
Posts: 1611
Location: Central Illinois, USA
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| Posted: Wed Nov 18, 2009 11:53 pm |
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| PCM programmer wrote: |
(Would be more logical than asking on CCS, no ?)
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The CCS Forum is where all the smart people hang out. It's so kewl!
(grin)
-Ben
_________________
Dazed and confused? I don't think so. Just "plain lost" will do. :D |
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Jody
Joined: 08 Sep 2006
Posts: 182
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| Posted: Thu Nov 19, 2009 2:29 am |
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Yes I did read that site:
| Quote: |
Features:
LCD Logic - 3.3V @ 2-3mA
LED Backlight - 7V @ 40-50mA (very bright)
Full 4,096 Color Display
Uses the Epson S1D15G10 or Philips PCF8833 Controller (we cannot guarantee which one you will receive, please see Jim Lynch's tutorial below as to why)
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And Jim Lynch say:
| Quote: |
if the LCD has a GE-12 sticker on it, it’s a Philips PCF8833. If it has a GE-8 sticker, it’s an Epson controller.
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And on mine display has a GE sticker not GE-8 or GE-12...
So I have take the display apart and found a controller.... and still I don't know what controller it is....
Anyone??
Regards,
Jody |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Thu Nov 19, 2009 2:33 am |
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Why are you asking us ? Why don't you ask on the Sparkfun forum ?
It's their product. |
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Jody
Joined: 08 Sep 2006
Posts: 182
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| Posted: Thu Nov 19, 2009 2:47 am |
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Why am I asking it here:
There are a lot off people on this forum that used this display. So maybe (I have this display takes apart) we can solve this question ones and for all.
Why am I not asking Sparkfun:
I did ask them. they answer: | Quote: | | Uses the Epson S1D15G10 or Philips PCF8833 Controller |
Regards,
Jody |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Thu Nov 19, 2009 2:01 pm |
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Here is a possible way to tell the difference:
1. Study the data sheets of the two LCD controllers.
Look to see if there are significant differences in the register map,
or the method of accessing the registers.
2. Write two short test programs, one for each LCD controller,
that reads and writes to a register. See which one works with
your LCD.
For example, one of the controllers may have "extensions" to
the command set or the register set. It may have a register
that doesn't exist in the other controller. You could try to read
and write to that register. This might prove which controller
you have. Though, it's possible that a register might be undocumented
in the 2nd controller. Then this test might not work to tell the
difference between controllers.
In one of the controllers, a register might be "write-only". But
maybe in the 2nd controller, it might be "R/W" capable. You could
write a test program that tried to write and then read back the result.
This could tell you which controller you have.
Look for differences like this between the two controllers, that you
can use to tell which one you have. It takes a little detective work. |
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