Could I swap PCIE0 pairs of Orin NX module to Nvme module for easy PCB routing

Robotics & Edge Computing Jetson Systems Jetson Orin NX
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1

Hi，

In the official Orin Nano carrier board, there are connection between Orin Nano module and Nvme module:

Nano module PCIE0_0 to PE0 of Nvme module

Nano module PCIE0_1 to PE1 of Nvme module

Nano module PCIE0_2 to PE2 of Nvme module

Nano module PCIE0_3 to PE3 of Nvme module

But in my board, as below figure shown, for easy PCB routing , I swap adjacent PCIE pairs between Orin Nx module and Nvme module:

Nano module PCIE0_1 to PE0 of Nvme module

Nano module PCIE0_0 to PE1 of Nvme module

Nano module PCIE0_3 to PE2 of Nvme module

Nano module PCIE0_2 to PE3 of Nvme module

My question is that this kind of swapping is OK or acceptable for Orin Nx module ?

image
image1612×690 27.8 KB

Thanks in advance!

Best regards!

Jason

3

Hi，

I check the datasheet of Orin NX module, and it seems that Lane reversal (0123→ 3210) is supported by controller as below figure shown. But I just want to know if 0123→1032 is also supported?

Any response is welcome!!!

image
image1166×386 72.7 KB

Thanks in advance!

Best regards!

Jason

4

The combination you are asking for is not supported.

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