Protocol of Picturetel camera

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2 total messages Started by Bernhard Roth Fri, 28 Sep 2001 12:08

Author: Bernhard Roth
Date: Fri, 28 Sep 2001 12:08

55 lines
3571 bytes

Hi !

From an old PictureTel 4000 series system I could get the very nice camera
module. This module has many features like as automatic zoom, autofocus and
so on. I have got the pinout of the camera connector and there is a serial
interface. But I have absolutely no idea about the commands/protocol the
camera is using. To find out anyting, I wrote a little brute-force program
which is sending many byte-combinations at several baud-rate, parity- and
stop-bit configurations. Here are the things I found out :

- Baud-Rate 9600, 8, O, 1 or 9600, 8, N, 1
- A command seem to start with #2 and end with #4
- On some commands the camera returns #2lirc#4 (error code ??)

Unfortunately the camera is rebooting on several byte-combinations so the
test with the brute-force program isn't easy...
The camera is using a 80C32 as main processor. I have the content of the
EPROM available. If anybody can do anything with the binary-code, I can send
it to him. UltraEdit shows me some strings in this binary-image so there
seem to be a menu (see attachement).

Do anyone know this protocol ? Is it perhaps a standard-protocol ?

Thanks !!!!


Sincerly,

Bernhard Roth

*********************

Here are some strings which can be found in the binary-image :

lrd0110V3 - Indoor     [ ]0kazo(lrd0102TCamera White Balance Adjust
Menulrd1116T
ckr�kio070
ckr�kpl070+lrd0206U3 - Iris (Auto/Close/Open) [ ]  [ ]lrd0108U1 - Auto
[ ]lrd0111V4 - Outdoor    [ ]lqWlqR+lrd0205U2 - Focus (Auto/Delay)
[ ]  [ ]mavBrdckg00s0katulqlmavBcuckg01slrd0114TIn the Iris
option,ckg02slrd0115Tuse tilt arrow keyslqSckg03slrd0116Tto set iris
manually.lad#lrd0105TUndefined Number, Try Againloalrd0301TEnter
Number+lrd0206V3 - Iris (Auto/Close/Open) [ ]  [ ]lrd0108V1 - Auto
[ ]ckp�kprlrd2203TCMD STATUSlrd0114TPress MENU to exit
ckr�ktd070 mfmfBaEaKldd
lrd__03T* lopl

TPress a DISPLAY/SEND key for camera.lc�a&lrd0303U
lctpckp�kiockp�kpllirc.lrd0103TPoint the Camera at a White
background.+lrd0105TPress 1-4 to select, 5 for
default.lzrlossliralrd0104TPress ZOOM IN.mfm0Flrd0105TPress ENTER When
ready. mfmcCcFcJlrd0107TPress MENU to cancel. mfmhAhKhJ-lrd0109T***Mode is
reset to Auto on Power
up.ckt�kwckc�kicmfmhAaKlde_mbwtckp�ktdckd��ckd��
mfmcCcGcJlas_Copyright (C) PictureTel Corporation, 1990

Re: Protocol of Picturetel camera

Author: johnd
Date: Thu, 04 Oct 2001 05:38

13 lines
1810 bytes

In article <9p1lps$6rg$1@news1.transmedia.de>, Bernhard.Roth@pwrnet.de 
says...
> Hi !
> 
> From an old PictureTel 4000 series system I could get the very nice camera
> module. This module has many features like as automatic zoom, autofocus and
> so on. I have got the pinout of the camera connector and there is a serial
> interface. But I have absolutely no idea about the commands/protocol the
> camera is using. To find out anyting, I wrote a little brute-force program
> which is sending many byte-combinations at several baud-rate, parity- and
> stop-bit configurations. Here are the things I found out :

Probably use a visca interface.

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