Looking into using Ethernet on S32K396 and investigating the options of getting connected.
We bought S32K396-BGA-DC1 with S32X-MB under the assumption that we would be able to use the T1S PHY that is available on S32X-MB, but S32K396-BGA-DC1 by default wires the PHY signals to a separate PHY connection and not the MB connectors, which coincidentally also destroys many of the provided examples such as SPI etc.
It is not entirely obvious where the strapping resisitors on the S32K396-BGA-DC1 board is for rewiring to use the MB connection instead. Only gerbers is provided under design resources, and it appears to be missing net & component information making it unnecessarily hard to navigate the board design. Is there any more easily digestable design resource for the board?
Alternatively, which PHY boards are available that works with the PHY connector on S32K396-BGA-DC1?
Yes I meant 100BASE-T1.
I have managed to locate the resistors. Just very time consuming when having to to search the board visually with no searchable metadata.
Availability of the TJA1103-SDBR board is a bit low. I assume TJA1104-SDBR would work as well even if we are not using MACSEC.
Hello @Henrik-Wires ,
Just to clarify that there's no T1S PHY on S32X-MB. There's 100BASE-T1 TJA1103.
Yes, S32K396's EMAC is routed to the SABRE connector by default. Regarding PCB, there's no more files available. However, strapping resistors can be located thanks to white labels on PCB.
Alternatively, https://www.nxp.com/part/TJA1103-SDBR fits the SABRE connector on S32K396-BGA-DC1 .
TJA1103-SDBR needs to be in rev-RMII mode to generate clock on TXC -> add jumper 2-3 to CONFIG4.
Best regards,
Pavel
Hello @Henrik-Wires ,
Yes, TJA1104-SDBR should work as well as TJA1103-SDBR.
Best regards,
Pavel
Thanks for the reminder to check CONFIG. The default config as delivered is "different".