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USB Superspeed Peripherals

Anonymous
Not applicable

Hi,

   

I am unsure if this is the right place to ask this specific question, but hopefully someone knows the answer!

   

 

   

In Cypress EZ USB Suite's CX3 Configuration project, in the Frame Configuration, we need to set both H and V blanking values. In the example code for OV5640, H blanking is set to 50 for all resolutions and V blanking set to 5. I went through the spec. and ov's source code, and still couldn't figure out how 50 and 5 were calculated!

   

 

   

I am trying to port the example code to support another OV sensor, so without knowing these two values, I couldn't make the project work.

   

 

   

Thanks!

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Anonymous
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Hi,

   

The H-blanking and V-blanking are not rigid and are adjusted to make the other parameters fit.

   

Please create a Tech Support case so that our engineers will assist you in setting the config for your desiref frame rate and resolution.

   

Regards,

   

-Madhu Sudhan

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Anonymous
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Hi Madhu,

   

Thanks for the infor. After contacting a local OVT FAE, I now have a better understand of H/V blanking. Thanks!

   

Regards,

   

Huihai

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Anonymous
Not applicable

Hi,

   

I 'm having similar issues. If resolved, can you post the FV and LV values here?

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Anonymous
Not applicable
        Hi vhaditya I am unsure about what are FV and LV. But for H/V blanking, as Madhu explained, those two values are related to how you configure your sensor. For example, if you total horizontal timing (HTS) is 1970 and your horizontal size is 1920, then your H blanking should be specified as 50. Hope that will help. Regards, Huihai   
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