1

I'm looking for a single-board computer with seemingly simple requirements:

  • Gigabit ethernet port
  • Ethernet port supports HW timestamping for PTP and NTP
  • Low power usage
  • Few GPIO pins
  • The ethernet interface is not USB

I've searched for a while, but it's very annoying to search because HW timestamping and if the ethernet is connected to USB or not is rarely listed.

Maybe someone here knows any good devices?

Avamander
  • 182
  • 2
  • 10
  • Honestly, USB connected Ethernet is pretty rare. I would probably answer but I have no idea what you mean by HW time-stamping in the context of NTP. – jaskij Feb 06 '20 at 16:00
  • @jan-dorniak Honestly, USB connected Ethernet is pretty rare. The older Raspberry Pi's AFAIK all had ethernet connected to the USB bus? – Avamander Feb 06 '20 at 16:01
  • but I have no idea what you mean by HW time-stamping in the context of NTP. Software such as chrony can utilize that feature for more accurate time synchronization, but I want it primarily for PTP. – Avamander Feb 06 '20 at 16:02
  • And they are the exception. That they are popular doesn't really matter. That SoC was designed for settops... The SoC in Pi 4 still doesn't have an on-chip MAC, it uses a PCIe connected one. – jaskij Feb 06 '20 at 16:03
  • 1
    do you mean something like a hardware RTC? In that case I could probably recommend something but it might end up in a 200 Euro range. – jaskij Feb 06 '20 at 16:04
  • Well, if it can run Linux and has the hardware features I'm wishing for then sure, you can suggest something. – Avamander Feb 06 '20 at 16:08
  • I will look for it in a few hours (still at work), but for now you can go through my profile to the Qt SBC answer, it would be likely similar hardware. – jaskij Feb 06 '20 at 16:29

0 Answers0