Can ethernet and 4G co-exist in Jetson Nano

Dear all:

  • 1: Jetson nano software version: R32.4.3

  • 2: In our custom board, Both ethernet and 4G connected to PCIE0, as following pcitures:

    ethernet is connected to pcie0, at the same time 4G connected to pcie0;

  • 3.1: when Image without 4G driver(just add some files), eth1 can work normally;
    3.2: when Image with 4G driver(just add some files), eth1 was disappeared even if the 4G module is not yet plugged into the device.

4: Just one pcie controller pcie@1003000 for eth0, eth1 and 4G is exist.
But, eth1 related to pci@2.0 which exist in jetson nano modules.

  • Finally: Are both ethernet and 4G connected to PCIE0 allowed?
    If not allowed, eth1 can not work which build-in jetson nano modules, supposedly, the network port on the custom board is not working.
    If allowed, here are some more suggestions for me?

Thank you for your kind help! Thank your very much.

Duplicated with In custom board, eth1 which connected to pcie0 in xavier nx did not work - Jetson & Embedded Systems / Jetson Xavier NX - NVIDIA Developer Forums

Hi, what is the “4G”? Is it a 4G device? Do you mean two device (eth and 4G) to same PCIe port? If so, it depends on the external switch design, for Jeton, it is just one PCIe port.

  • I think it should be two questions. Because Jetson xavier nx have two pcie controller for pcie0 and pcie1. And in Jetson nano, one pcie controller manages two device for pcie0.

4G : EC20 MINI PCIE device which support 4G.
Yes(Do you mean two device (eth and 4G) to same PCIe port? )
In jetson Nano, when Image with 4G driver(just add some files), eth1 was disappeared even if the 4G module is not yet plugged into the device. eth1 is Jetson nano modules ethernet, not our custom board ethernet.