Re: Camera module

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Alison Chaiken

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Oct 6, 2012, 10:52:00 PM10/6/12
to panda...@googlegroups.com, ahafne...@gmail.com, tall...@gmail.com
ahafne...@gmail.com reports:
> 2) If i use the v4l-info tool i get the following output
>
> ### v4l2 device info [/dev/video0] ###
> general info
> VIDIOC_QUERYCAP
> driver : "issvideo"
> card : "OMAP4 ISS CSI2a output"

Joe Kreidler also reported using a CSI2 camera for development. I
have been eager to purchase a small quantity (maybe 4) of CSI2 cameras
for a while but have been unable to find any for sale in lots smaller
than 1000. Does anyone know of a source that will take small orders
that actually has stock?

My understanding is that, unlike parallel RGB sensors, CSI2 cameras
have standard connectors and a truly common connectivity protocol.
Thus they are interchangeable from the HW interface point-of-view
(although obviously sensors are different). Does anyone know if
this is true?

Thanks,
Alison

--
Alison Chaiken
(650) 279-5600 (cell) {she-devel.com,
exerciseforthereader.org}
From what I've known of desire, I hold with those who favor fire.

Joshi, Vikas

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Oct 8, 2012, 2:07:41 AM10/8/12
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Did you try: http://boardzoo.com/index.php?cPath=16 ?

You may still have to buy quantity of 5 but that's far less than 1000!

Vikas

Alison Chaiken

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Oct 9, 2012, 1:07:00 AM10/9/12
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VJ helpfully suggested:
Vikas

Thanks, Vikas, but the only camera I see at that link is a 5 MP RGB-output one, not a CSI2 one.   Aptina lists CSI2 camera modules at least, and my colleague is inquiring there. 

---

Joshi, Vikas

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Oct 9, 2012, 2:20:43 AM10/9/12
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I think the camera sits on an adapter board that goes over the CSI2 expansion connector on Panda.

CSI2 camera header is exposed at location J17 on Panda.

Read more at: http://www.omappedia.org/wiki/PandaBoard_Camera_Support

 

Vikas

 

From: panda...@googlegroups.com [mailto:panda...@googlegroups.com] On Behalf Of Alison Chaiken


Sent: Tuesday, October 09, 2012 10:37 AM
To: panda...@googlegroups.com
Cc: ahafne...@gmail.com; tall...@gmail.com

Joe Kreidler

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Oct 9, 2012, 9:09:54 AM10/9/12
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Alison,

The web site states "Output format: 8/10 bit raw RBG data". In other words, the output of the Omnivision sensor is 8 or 10 bit Bayer. Each pixel is either 8 or 10 bits or green, blue, or red. The demosaic filter in the OMAP ISP is needed to convert this frame to YUV.

Also, the output format is independent of the layer 1 and layer 2 connection between the sensor and host. Bayer format can be used with serial CSI2 as well as a parallel CPI connection.

Joe
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