5 Replies Latest reply on Jan 27, 2015 3:29 PM by userc_41004

CX3 interface to a different image sensor

userc_41004 Aug 18, 2017 1:59 PM

Hi,

We currently have e-con systems board with CX3 and OV5640. We are interested in switching to another Omnivision sensor, preferably OV4689. Has anyone done that before and can give me some pointers, especially on the coding/firmware side.

Thanks,

1. Re: CX3 interface to a different image sensor

arasc_296896 Jan 13, 2015 11:03 PM (in response to userc_41004)

Hi,

You have to get the sensor data sheet and working settings from the sensor manufacturer and replace OV5640 APIs with your own. It should work fine.
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2. Re: CX3 interface to a different image sensor

userc_41004 Jan 27, 2015 12:59 PM (in response to userc_41004)

eAR,

Can we just change the register settings? Or there are other places that might need modification as well?
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3. Re: CX3 interface to a different image sensor

manuk_96 Jan 27, 2015 3:12 PM (in response to userc_41004)

Typically, just changing the register writes should be enough. If you have an NDA with OmniVision, you can forward that to us (Cypress) via a Tech Support case (https://secure.cypress.com/myaccount/?id=25&createCase=techSupport) and we can send you the source code for the functions that write to the OV sensor (these are the ones that start with CyCx3_ImageSensor_*). You can modify it to work with the OV4689.
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4. Re: CX3 interface to a different image sensor

userc_41004 Jan 27, 2015 3:29 PM (in response to userc_41004)

Thanks!

We have an NDA with OmniVision and got the source file for OV5640 from Cypress. Just wanted to check if modifying only that file should be enough.
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5. Re: CX3 interface to a different image sensor

user_1548226 Feb 21, 2016 5:36 PM (in response to userc_41004)

How did you have an NDA with OmniVision ?Get the template of NDA agreement from the website of OmniVision?
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