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Visitor
Visitor
570 Views
Registered: ‎12-12-2019

Video processing on zybo z7-20

Hope you all are fine,

I downloaded Digilent/Zybo-Z7-20-HDMI  from https://github.com/Digilent/Zybo-Z7-20-HDMI

I have upgraded the ip's, it was displaying output on monitor. Then I have created the ip of sobel edge detection and added the ip in block diagram. After solving some clocking issues, bitstream has been generated. After launching to sdk, when I Launch on Hardware (System Debugger), output doesn't display.

Below is block diagram, please guide me 

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Teacher
Teacher
556 Views
Registered: ‎07-09-2009

Re: Video processing on zybo z7-20

Simulate and see where its failing.

 

<== If this was helpful, please feel free to give Kudos, and close if it answers your question ==>
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Teacher
Teacher
548 Views
Registered: ‎06-16-2013

Re: Video processing on zybo z7-20

Hi @bilal_909 

 

What source device are you using as video source ?

 

Best regards,

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Visitor
Visitor
542 Views
Registered: ‎12-12-2019

Re: Video processing on zybo z7-20

I am using input from hdmi out of laptop

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Scholar
Scholar
538 Views
Registered: ‎08-07-2014

Re: Video processing on zybo z7-20

@bilal_909,

You might ask this question in the Digilent forum as it is their design and they might be able to GUESS a reason/s.

Just looked into the repo...

Can you control the design functions via TeraTerm?

Did you try option "3/4 - Store one of two test patterns in the chosen video frame buffer"?

Seems like there is a test pattern gen inside the design. If HDMI data stream from PC is not working they use the internal pattern gen.

 

If nothing works, I would recommed to initially do the HDMI Pass-through project. In this no procesing is done (there are just some internal signal conversions) on the HDMI data. It just tests that your HDMI source and sink are working properly in hardware and you can display a HDMI stream.

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Visitor
Visitor
420 Views
Registered: ‎12-12-2019

Re: Video processing on zybo z7-20

Thank @dpaul24  you for your reply,
Yes I can control the function using putty terminal, I will update you about "3/4 option after some time

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Moderator
Moderator
300 Views
Registered: ‎11-09-2015

Re: Video processing on zybo z7-20

Hi @bilal_909 

Just refer to

Video Series 31 – Debugging a Video System using an ILA

Video Series 35 – Oh no! My video design does not work! What should I do?

and try to find where in you design this is failing. Probably you IP is not able to deliver enough data to keep up with the stream. You might want to consider adding a VDMA or Video frame buffer to reduce the pressure.


Florent
Product Application Engineer - Xilinx Technical Support EMEA
**~ Don't forget to reply, give kudos, and accept as solution.~**
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Xilinx Employee
Xilinx Employee
271 Views
Registered: ‎03-30-2016

Re: Video processing on zybo z7-20

Hello @bilal_909 
Just adding my two cents.

Usually adding ILA is much more simple to do.
But, perhaps inserting Video Debug module may also helps, since this module can check if your Video stream contain any errors.

Regards
Leo

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