Re: [Gumstix-users] ACX705AKM display connection

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Hey Mark,

I am surprised no one replied to this message yet.  I guess not many people
in this list are interested in screens as much as I am! :)

Thanks for the pictures!

Is that connector, at the end of the screen ribbon cable, just resting on
top of your gumstix?  It almost looks like that connector is part of the
gumstix itself.

Since I have little knowledge of gumstix, here are some elementary
questions.  What board is the one shown on the picture?  What are the
connections at the bottom of the board, are those GPIOs?  What do you use
those for in your case?

Have you been able to solve the bleed problem on the screen?  And how hard
was it to get Qtopia on a gumstix?  Finally, how does the VNC app work, it
actually allows you to see X running on the verdex just like it was a scree=
n
attached to it?

Sorry for so many questions, but you got me all excited about this screen!!=
!

On 5/31/07, Heilpern, Mark <mar...@au...> wrote:
>
>  I've got some pictures online=85
>
>
>
> http://www.heilpern.com/gumstix/image1.jpg
>
> http://www.heilpern.com/gumstix/image2.jpg
>
> http://www.heilpern.com/gumstix/image3.jpg
>
>
>
> These are 3002x2000 images, around 3MB each. Probably only the first and
> third images are interesting. The first shows the full setup, where the
> second is zoomed in on the screen. The second came out darker though, and
> the screen content is more clear in the first image. The third image is t=
he
> same Qtopia application (gradients) running on the Gumstix but displaying=
 to
> a VNC server, as viewed on a Windows machine.
>
>
>
> Since the application is designed for a much larger screen area, I don't
> expect it to look great on the 240x160 display, but I don't think that's =
the
> cause of the bleed that's visible in these images. Probably a frequency
> configuration issue?
>
>
>  ------------------------------
>
> *From:* gum...@li... [mailto:
> gum...@li...] *On Behalf Of *Heilpern, Mar=
k
> *Sent:* Wednesday, May 30, 2007 12:53 PM
> *To:* General mailing list for gumstix users.
> *Subject:* Re: [Gumstix-users] ACX705AKM display connection
>
>
>
> I snapped one prior to my last email, but the picture came out terribly
> (on a mobile phone camera, under poor lighting). If I can get a shot that
> shows things better I'll post a link.
>
>
>  ------------------------------
>
> *From:* gum...@li... [mailto:
> gum...@li...] *On Behalf Of *Fabio Miguez
> *Sent:* Wednesday, May 30, 2007 8:49 AM
> *To:* General mailing list for gumstix users.
> *Subject:* Re: [Gumstix-users] ACX705AKM display connection
>
>
>
> Hi Mark,
>
>
>
> Any chance you could get a couple of pictures of the screen at work?
>
>
>
> Thanks,
>
>
>
> On 5/29/07, *Heilpern, Mark* <mar...@au...> wrote:
>
> I got the display to light up with recognizable data=85 it's far from goo=
d
> looking (or even usable), but it's recognizable.
>
>
>
> The test program is a Qtopia demo application, "gradients". I've run this
> program against a VNC buffer to make sure it runs and it looks perfect in
> VNC =96 except the application is much larger than 240x160, so it might n=
ot be
> a good test case. The physical display shows the upper left of what I exp=
ect
> to see, and the colors are more or less what I expect=85 the problem is t=
he
> screen has a large amount of horizontal jump, like a clock isn't at the
> right frequency=85 this leads to a fair amount of pixel bleed towards the
> right.
>
>
>
> I set the registers according to the script at
> http://docwiki.gumstix.org/Display#Setting_up_the_Sony_ACX705AKM_on_gumst=
ix
> .
>
>
>  ------------------------------
>
> *From:* gum...@li... [mailto:gumstix-users=
-bo...@li...
> ] *On Behalf Of *Jozsef Lenart
> *Sent:* Saturday, May 26, 2007 4:13 AM
> *To: *General mailing list for gumstix users.
> *Subject:* Re: [Gumstix-users] ACX705AKM display connection
>
>
>
>
>
> 2007/5/26, Fabio Miguez <fab...@gm... >:
>
> Hi Mark,
>
> How's this going?
>
>
> I'm doing the same work with the same components too. Yesterday night i'v=
e
> wired the frontlight and it works (from 6V, 15mA). Hopefully today i'll d=
o
> the rest and show some pictures on it.
> Good luck!
>    ------------------------------
>
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>
>
>
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> --
> Fabio Miguez
>
> ------------------------------
> NOTE: The information in this message is intended for the personal and
> confidential use of the designated recipient(s) named above. To the exten=
t
> the recipient(s) is/are bound by a non-disclosure agreement, or other
> agreement that contains an obligation of confidentiality, with AuthenTec,
> then this message and/or any attachments shall be considered confidential
> information and subject to the confidentiality terms of that agreement.  =
If
> the reader of this message is not the intended recipient named above, you
> are notified that you have received this document in error, and any revie=
w,
> dissemination, distribution or copying of this message is strictly
> prohibited. If you have received this document in error, please delete th=
e
> original message and notify the sender immediately.
>
> Thank you.
>
>  AuthenTec, Inc.  http://www.authentec.com
>
>
>
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> Download DB2 Express C - the FREE version of DB2 express and take
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--=20
Fabio Miguez