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Registered: ‎05-10-2019

Problem with VDMA on Zynq MP under Petalinux

We are trying to get VDMA to work on Zynq MP under Petalinux (version 2018.2). We use a driver we found on github: https://github.com/bperez77/xilinx_axidma

As a first test we are trying to get VDMA work in loopback mode.

When we make a VDMA transfer, only every fourth 32-bit word gets transfered (bytes 0-3, 16-19, etc.). The other 32-bit words in the destination buffer keep their original values.

Does anybody have an idea what could be wrong?

Here is how the VDMA IP-block is configured:

advanced.jpgbasic.jpg

 

Regards,
Kaj

 

 

 

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Registered: ‎11-21-2018

Re: Problem with VDMA on Zynq MP under Petalinux

Hi kaj.fredriksson@saabgroup.com 

I will try to reproduce your issue and get back to you. 

Regards, 

Aoife
Product Application Engineer - Xilinx Technical Support EMEA
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Registered: ‎11-21-2018

Re: Problem with VDMA on Zynq MP under Petalinux

Hi kaj.fredriksson@saabgroup.com 

Sorry for the slow reply on this. I am still working on recreating your issue. I hope to have an answer for you soon. 

Regards, 

Aoife
Product Application Engineer - Xilinx Technical Support EMEA
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