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Observer borsec
Observer
261 Views
Registered: ‎01-20-2018

Video capture in Petalinux on Zybo

Hi,

 

I have a Digilent Zybo z7-20 board and I took the Linux base vivado project and compiled the petalinux from Digilent's GitHub . The os is working fine.

https://github.com/Digilent/Zybo-Z7-20-base-linux

https://github.com/Digilent/Petalinux-Zybo-Z7-20

I observed a dvi2rgb block which terminates in video memory access and also, in petalinux repo, it's specified that there is a hdmi in via uio.

My question is: how can I get a picture from hdmi via user space io?

 

Thank you!Merry Christmas!

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2 Replies
Scholar watari
Scholar
243 Views
Registered: ‎06-16-2013

Re: Video capture in Petalinux on Zybo

Hi @borsec

 

Would you get video image via mmap in Linux application ?

 

Best regards,

 

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Observer borsec
Observer
215 Views
Registered: ‎01-20-2018

Re: Video capture in Petalinux on Zybo

Yeah, mmap would work. To be honest,  I want a simple example which work.  Then,  I could change my code to integrate it into my app. 

 

Thank you for your response! 

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