Unex V2X SOM Module on NRU50

The NRU-50 series is compatible with the Unex V2X SOM modules.

Setup Unex SOM

1. Please apply a 2.54 pitch jumper to the 2-pin header near the rotary switch to get the extra mPCIe 5V power supply of mPCIe to power the Unex V2X module.

2. For the dip switch of Unex module, please set

   1. Pin 1 to On - to get the 5V power supply from mPCIe connector directly

   2. Pin 4 to On - to get the proper reset signal from mPCIe connector

   3. Pin 8 to On - to boot the Unex module from pre-built image

   4. Others pin set to Off

3. Only the mPCIe connector in the middle of NRU-50 supports the direct 5V power supply for Unex SOM modules.

Test Unex SOM

lsusb

If you have completed the above setup steps, you will find the following device when you enter lsusb

Bus 001 Device 004: ID 1d6b:0104 Linux Foundation Multifunction Composite Gadget

Ping

1. You can communicate with Unex SOM via rndis, which implies no extra driver is required.

2. In case your local network is also 192.168.1.x , unplug your local network before boot up NRU-50

3. Ping 192.168.1.3 to visit Unex SOM, you will get the response like:

nvidia@nru50-0906:~$ ping 192.168.1.3
PING 192.168.1.3 (192.168.1.3) 56(84) bytes of data.
64 bytes from 192.168.1.3: icmp_seq=1 ttl=64 time=0.479 ms
64 bytes from 192.168.1.3: icmp_seq=2 ttl=64 time=0.436 ms
64 bytes from 192.168.1.3: icmp_seq=3 ttl=64 time=0.479 ms
64 bytes from 192.168.1.3: icmp_seq=4 ttl=64 time=0.441 ms
64 bytes from 192.168.1.3: icmp_seq=5 ttl=64 time=0.444 ms
64 bytes from 192.168.1.3: icmp_seq=6 ttl=64 time=0.496 ms