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Registered: ‎11-09-2019

Unknown header type 7f

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Hi, I'm working on Numato Aller Artix 7, and facing a problem when trying to build a simple project with IP DMA/Bridge Subsystem for PCIe like a figure below. After generated bitstream and program down to board, I use command lspci -v in Linux to display information about pci buses but it's show "Unknown header type 7f". How can I fix it?
Thank in advance1.PNG2.png

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Xilinx Employee
Xilinx Employee
1,680 Views
Registered: ‎10-09-2019

Hi,

This issue typically occurs when the configuration space is not accessible. 

Could you check if the link up is stable?

Thanks,

Matt 

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Xilinx Employee
Xilinx Employee
1,681 Views
Registered: ‎10-09-2019

Hi,

This issue typically occurs when the configuration space is not accessible. 

Could you check if the link up is stable?

Thanks,

Matt 

View solution in original post

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1,645 Views
Registered: ‎11-09-2019
Hi Matt,

Thanks a lot for your help. However I'm a newbie so could you please explain more how to check link up stable?

Thanks in advance


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Xilinx Employee
Xilinx Employee
1,602 Views
Registered: ‎10-09-2019

Hi,

I would recommend enabling the JTAG Debugger in your design use this AR as a reference.

https://www.xilinx.com/support/answers/72471.html

Let me know if this helps.

Thanks,

Matt 

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1,572 Views
Registered: ‎11-09-2019
HI Matt,
Thanks a lot for your help. I just realized that I assigned pcie ports wrong location that made the Header Type in BAR 0 incorrect
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