Best posts made by Mark Fisher

Hi All,

for whatever reason, I struggled for some time to get my own ethernet interface working with the Omega 2/2+. I wanted to make my own specific breakout with 2.1mm power, USB and ethernet in a minimal footprint. First, I tried using an RJ45 connector with a sperate magnetics package but could not get any of them working. I had immediate success with a MagJack (RJ45 with built-in magnetics). After that project, I then wanted to build a PoE version and came up with the schematic below which again uses a MagJack with the addition of a PoE module.

One of my requirements for any project is that the parts are easily accessible and will be available again in the future so this eliminates eBay, Alibaba, etc. To that end, all of these parts are available in North America from Digikey, Mouser, Adafruit, and others.

PoE Module (https://www.adafruit.com/product/3848)
SI-52008-F MagJack (Digikey)

I hope you find this helpful.

Photo as requested. This is my demo board.

@Eric-Jaouen

Hi Eric, I used the flash from USB method with firmware downloaded from the repository. The only challenges I ran into were that 1. I could never get the CP2102 driver to work on my mac so I had to switch to a Windows machine and 2. I actually had to read the instructions properly.

While banging my head against a wall trying to get SPI to work, my Omega2 reset itself and has changed its MAC address. After it reset I noticed the wifi (Omega-C061) had changed to (Omega-00A8). I then ran the setup wizard and ran ifconfig and got the following:

root@Omega-00A8:~# ifconfig
apcli0 Link encap:Ethernet HWaddr 02:00:00:00:00:A8

That is definitely not a correct mac. Anyone have an ideas?

Cheers

@Valeriy-Yatsenkov

I have the same question. The current I2C library seems to have been written with a specific device in mind. Has anyone come up with a solution for this?