Automotive Ethernet Connector on TJA110x Adapter and S32k3x T172 Dev Board

[noobsplzwin]

Hello everyone,

I recently purchased a 100BASE-T1 TJA110x adapter along with an S32K344 T172 development board. I’m trying to learn more about the automotive Ethernet interface, and I could use some guidance.

From my understanding, in order to send an Ethernet packet from the S32K344 dev board to my PC, I need to do the following:

1. Connect the J415 Ethernet connector on the S32K344 dev board to the J3 - 100BASE-T1 2-Pin Connector on the 100BASE-T1 TJA110x adapter.
2. Then, connect the 100BASE-T1 TJA110x adapter to my PC via RJ45.

Is this setup correct? If so, I’m also struggling to find a compatible male connector cable for the S32K344 J415 Ethernet connector that would magically connect it to the J3 - 100BASE-T1 2-Pin Connector. Does anyone know where I might be able to purchase this cable, or is there a specific part number I should look for?

Thank you in advance for any help or advice you can offer!
Connor

 

[PavelL]

Hi,

Yes, your setup is correct - you need something like RDDRONE-T1ADAPT: Ethernet media converter | NXP Semiconductors to connect 100BASE-T1 to your computer.

The used magic socket is this one 2304372-1 : MATEnet Automotive Headers | TE Connectivity. The compatible connectors are listed on the same page as well as distributor's list. BTW, the socket specification is listed in BOM of the EVB (BOM is included in https://www.nxp.com/webapp/Download?colCode=S32K3X4EVB-T172-HWPACK).

100BASE-T1 has no super strict requirements for wiring, so I would do a reduction cable to the adapter (e.g. JST-GH).

Best regards,

Pavel