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Visitor denysslyusar
Visitor
398 Views
Registered: ‎01-23-2019

PCIE Lane Change Ultra96 In Vivado

Hi, 

I am currently working with the Ultra96 board from Avnet. In vivado (2018.3), when I go into Re-customizing IP (on ZYNQ UltraSCALE+), I am given options to configure PCIE but it does not allow me to configure the lane from GT lane 0 to lane 2 or 3. Is there an alternative way of doing this? 

Thank you. 

Lane Configuration.JPG
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1 Reply
Moderator
Moderator
370 Views
Registered: ‎02-11-2014

Re: PCIE Lane Change Ultra96 In Vivado

Hello @denysslyusar,

The GT lane's in the ZU+ Controller fo PCIe are fixed. i.e. you cannot do Lane Reversal or move them around in any way. If you have a x1 PCIe interface, then you have to use GT lane0. If you have a x2 interface, then you have to use GT Lane 0-1. If you have a x4 interface, you you have to use GT Lane 0-3. We document this in UG1085 via Table 29-1 as seen here:

image.png

Let me know if you have any further questions on this topic.

Thanks,
Cory

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