Vitis Vision Library Vivado Design

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Hi all,
I am trying to reproduce the Hello-world accelerated resize OpenCV function. I have successfully exported the IP block. However, I am now stuck on the Vivdao design. I added the Zynq processing system and the Resize IP generated using Vitis HLS but How to complete the whole design.
I am new to this field, I tried to follow these links without a successful result.

I tried to add these blocks one by one and connected them line by line, but some inputs/outputs are not the same. I have to customize some blocks but I do not know how?

Could you please help me achieve my design and recommend me some tutorials or links to achieve this project.
Thanks in advance

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The second blog you’re pointing to is from me. I couldn’t get it working at the time.
This is resolved when you use the latest available Hello World project from github.
See discussion on github: Update to 2020.2 by mariodruiz · Pull Request #26 · Xilinx/PYNQ-HelloWorld · GitHub

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Hi Jan Camps

Thank you for your reply and for sharing your experience

For Vitis HLS, it worked for me, and I am now stuck in the Vivado design.

For HLS code, I should mention that the new Vision library returns an error in the following line


typedef xf::cv::ap_axiu<DATA_WIDTH,1,1,1> interface_t;

It does not recognize ap_axiu as a member of xf::cv::

And you should merge it with the following line:


typedef hls::stream<ap_axiu<DATA_WIDTH,1,1,1>> stream_t;

Jan Camps, If the Vivado design worked for you, could you please share it with us. I enabled the GP0 and HP0 Axi interface and added DMA and Axi Data width converter, but when I run automatic connection, I cannot get the same design, and it returns many errors

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11208×480 78.7 KB

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I used the Vision library that matches the version of the example. If you check out the repo recursively, it automatically downloads the lib it compiles with.

I didn’t make a Vivado design. The repo has the make and Vivado tcl scripts to automatically build the design and overlay files.

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Thanks a lot for your help jancumps