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ZynelAbidin , 12-09-2025, 03:05 PM

Hi everyone.
Im working on my project with RTL8367S and Raspberry Pi Compute Module 4
I want to connect the Ethernet connections of the RTL8367S and the Raspberry Pi Compute Module 4, and I want to create a switch circuit for the RTL8367S to connect to the Raspberry Pi. I tried something like the one in the pictures, but I wasn't successful. Could you help me figure out how to proceed?

ZynelAbidin , 12-09-2025, 03:14 PM

my normal connection is like this.
I connected the Ethernet pins in the Raspberry Pi Compute Module 4 datasheet to the Ethernet pins of the RTL8367 IC on my pcb, but they did not work.

ZynelAbidin , 12-09-2025, 03:17 PM

I dont want to use cm4-nano board. How can I establish a communication connection between Raspberry Pi Compute Module 4 and RTL8367 microcontroller?

ZynelAbidin , 12-09-2025, 06:58 PM

@Robert Feranec do you have any idea ?

, 03-26-2026, 03:27 PM

Hi any ideas on the above

, 03-26-2026, 03:31 PM

@ZynelAbidin im trying something same type stuck in some placement

Robert Feranec , 03-27-2026, 10:57 AM

but, how did you connect them? don't forget, ethernet is using transformers

, 03-28-2026, 02:06 AM

Basically @Robert Feranec ethernet switcher type any ideas on it.

Robert Feranec , 03-28-2026, 07:48 AM

I mean what pins ... what signals exactly are connected together. There are at least three different "Ethernet" interfaces: MCU to PHY, PHY to Transformer, Transformer to Connector ... I just would like to know which of these interfaces were connected together between the switch and Raspberry Pi. Because sometimes people try to connect for example RGMII together

, 03-31-2026, 05:22 PM

Sp basically I m trying to use 2 ICs KSZ8863 and KSZ8081 along with 3 eyernet Jack's @Robert Feranec can you share how can be done

, 03-31-2026, 05:25 PM

How can best be placement done of these 2 Ics @Robert Feranec

, 04-01-2026, 03:22 PM

Mac to Mac you can say @Robert Feranec

, 04-02-2026, 05:51 AM

Can anyone please help in the above

Robert Feranec , 04-02-2026, 06:56 AM

what is Mac to Mac?

, 04-02-2026, 01:22 PM

Sorry just shared with these 2 ics im trying for a ethernet switcher design to make

, 04-02-2026, 05:08 PM

@Robert Feranec

ZynelAbidin , 04-02-2026, 08:44 PM

Hi again. I connect directly the rasp pi 4 eth pins to rtl8367 eth pins and its work

ZynelAbidin , 04-02-2026, 08:45 PM

I didnt use any transformers between pi and rtl8367

QDrives , 04-03-2026, 02:58 PM

The transformer sits between the PHY (RTL8367) and ethernet jack.