Wiznet W5100 to Domino no magnetics


I have an existing W5100 product which I connect to HANrun HR911105A.

For my new design I wish to remove the RJ45 and connect directly to the LAN port on the Domino module.

Can this be done successfully? Is there any recommendations for doing this?

Does this help? http://www.micrel.com/_PDF/Ethernet/app-notes/an-120.pdf




It helps.Someone not me succeed.you Can try the architecture of figure 2.if VDD of two system is same,you can just delete C1 and C2. the resistance mayby need to adjust.Good luck!!


Thank you for the reply. I will give it a try an report back when i can.


Were you able to try this? I will be doing similar very soon although I will probably still go through magnetics as a risk mitigation plan…

Any information on your experience would be appreciated since documentation seems to be a bit lacking …


Hi I did not try this yet. It’s still on my list of things to try though and the project I wanted it for is starting to get active again.

The other developer I am working with did connect the Domino Pi to my W5100 based Ethernet card (has onboard Hanrun HR911105A) and was successful in bridging Ethernet traffic to wireless.