When developing Nvidia Orin Nano with our own design carrier board, we found an issue that Orin Nano 8GB module can’t “be downgraded” (auto-negotiation) to 10/100M Base-T router (LevelOne FSW-0811). However, it works well with 10/100/1000M Base-T router (TP-Link TL-SG105).
According to Nvidia’s Networking spec., 1x GbE is always supported but we are not sure if “mandatory” 10/100M can still be supported or not. Please kindly advise if it’s a limitation here.
Is this also reproducible with NV devkit?
After using NV devkit (Orin Nano 8GB, NV P/N: 945-13766-0007-000) it works. And we observed below 2 behaviors for LAN LED blinking. Did they mean that everything went well for both 10/100 and 10/100/1000 LAN connections on NV devkit?
10/100M: No green LED, but amber LED is blinking.
10/100/1000M: Green LED is always on, and amber LED is blinking.
If so, we’ll check more when our new carrier board (something changed but not related to LAN functions) is ready. But is it also OK to tell us the manufacturer P/N of “Gigabit Ethernet Controller”, since we can’t find it from P3768_A04_BOM.xls? Thanks for your helps.
Could you try to use the ethernet connection status to tell the LAN status instead of using LED?
LED behavior from each vendor is different.
Sorry our new base boards are just arriving today, so I merely report the progress to keep this discussion thread on-going. Please kindly wait for our further updates.
Thanks for your helps and we finally manage to solve this issue. Owing to “excess pull-high” from 1.8V on Pin#239 (SYS_RESET) of Nvidia SOM, we got anomaly for 10/100M auto-negotiation in the end. Anyway, after removing the resistor to keep it to 1.8V, we solved this issue and worked well.