macdam
Posts: 3
Joined: Sat May 30, 2015 10:19 pm

14mp mipi camera

Sat May 30, 2015 10:24 pm

Hi,

I'm looking for the best and hopefully easiest way to connect a mipi 14mp camera to a raspberry pi, whether version B+ or 2.

Can you help please?

ghans
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Location: Germany

Re: 14mp mipi camera

Sun May 31, 2015 7:14 am

There is no such thing. The only officially working
camera module is the 5 - megapixel one designed by the foundation.

All other cameras simply won't function. There is some
very rudimentary work going on to support others , but
it is very complicated , you will have huge performance
losses and there is no guaranteed further and extensive
support and help :

viewtopic.php?f=43&t=109137

ghans
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macdam
Posts: 3
Joined: Sat May 30, 2015 10:19 pm

Re: 14mp mipi camera

Sun May 31, 2015 10:07 pm

thanks for your answer,

We don't especially need high performances as we will use only snapshot and not video.

I'm looking for a hardware interface to plug a MIPI OV13850 camera

ghans
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Location: Germany

Re: 14mp mipi camera

Mon Jun 01, 2015 7:20 am

The hardware interface is there already , but that is completely useless without your commitment to write lots of software to drive your camera module.

ghans
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6by9
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Re: 14mp mipi camera

Mon Jun 01, 2015 8:13 am

There is no standard connector that I know of for sensors, so you are almost certainly going to have to get a PCB designed and made to interface the two.

I'd first make sure you can find a supplier of OV13850 sensors, and obtain the full datasheet (including all register settings) from Omnivision. Without support from them, then unless you are VERY lucky and someone else has done the work before, then you haven't a hope ..... A quick Google ("ov13850 linux") does throw up http://dl.linux-sunxi.org/SDK/A80/A80_S ... /ov13850.c which looks like someone may have done an soc-camera driver for it.

Please note that this is a Bayer sensor. You will have to do a large amount of post-processing on it to get YUV or RGB out.

The standard Pi also only has 2 lanes of CSI-2 brought out to the camera connector. This sensor supports up to 4 lanes, and the driver linked above runs in 4 lane mode. You'll either have to amend the register set (datasheet needed), or use a Compute Module that does bring out all 4 lanes that BCM2835 supports on one of the 2 camera interfaces (the other camera interface is 2 lane only).
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macdam
Posts: 3
Joined: Sat May 30, 2015 10:19 pm

Re: 14mp mipi camera

Mon Jun 01, 2015 10:32 am

Ok we will use another card until raspb developer the appropriate hardware

Many thanks for your accurate answers

jamesh
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Re: 14mp mipi camera

Mon Jun 01, 2015 12:17 pm

macdam wrote:Ok we will use another card until raspb developer the appropriate hardware

Many thanks for your accurate answers
The RPF are not currently developing any such HW. Mainly because doing a multi sensor board is pretty much impossible.
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6by9
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Re: 14mp mipi camera

Mon Jun 01, 2015 12:42 pm

jamesh wrote:
macdam wrote:Ok we will use another card until raspb developer the appropriate hardware

Many thanks for your accurate answers
The RPF are not currently developing any such HW. Mainly because doing a multi sensor board is pretty much impossible.
It's just possible that individuals may stump up the cash to get boards designed and made (see the camera module over HDMI boards), but it will be specific to a particular module, and may be pricey. Getting a supply of sensors may also be tricky - easier in these days of internet shopping from China, but manufacturers would be typically looking for orders of 1000's+.

If you're really after this particular sensor, then you may well need to do the legwork yourself for any board.
Software Engineer at Raspberry Pi Ltd. Views expressed are still personal views.
I'm not interested in doing contracts for bespoke functionality - please don't ask.

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