Ethernet Keeps disconnecting on Milk-V Duo

Duo
1

Hi all,

I only just brought a Milk-V Duo so I’m not sure if I’m doing something wrong.

I have soldered an ethernet cable to the ethernet pins on the board, and the nic in the OS keeps on dropping. If I set a static IP on the nic and restart the networking service I can ping it on the network for a few seconds before it drops.

I’ve tried different cables and even made my own cable to make sure, two different boards and using the official Milk-V os and arch linux (IoT: Milk-V Duo (RISC-V) eSBC running Linux | XYZ dims *). Two different switches have been tested, one with poe the other without.

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Below is the output of journalctl on arch.

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Any advice or ideas would be much appreciated.

2

The pinout is not meant to use directly with a network cable. You will need to add the proper ethernet transformer circuitry.

3

Okay that makes sense, I was following the comments from this post.

4

QQ图片20231107180115
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The network cable cannot be too long. My method is no more than 10cm. The four network cables are flush and directly wound around the copper-clad board.
The other end is powered by USB, connected to a USB ()similar to the ARM Raspberry Pi box, saving a 5V power supply

(网线不能太长，我的方法没有超过10cm，4根网线平齐，直接绕在覆铜板上。
另一端 USB 供电，接在类似ARM树莓派盒子的USB上，节省一个5V电源器)

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