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rolandreichweinbmw merged 1 commit into from
Mar 17, 2026
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docs: Add note about known Ethernet issue #403

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4 changes: 4 additions & 0 deletions doc/dev/learning/ethernet/index.rst
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Expand Up @@ -56,6 +56,10 @@ Setup in Testing PC:
S32K148
+++++++

.. note::
On some boards, Ethernet does not work by default and a resistor needs to be depopulated first.
See :ref:`known_issues_with_s32k148_board`.

Hardware Connection:
- Connect the S32K148 development board to the TJA1101 daughter board.

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2 changes: 1 addition & 1 deletion doc/dev/learning/setup/index.rst
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Expand Up @@ -63,7 +63,7 @@ Known Issues with the S32K148 board
such as a Lauterbach, working via JTAG.
* - 5
- In order to enable the Ethernet interface for boards that use the part number ``LSF24D`` at
``U16``, ``R553`` needs to be depopulated (Check `SCH-29642 Rev.B <https://www.nxp.com/design/design-center/development-boards-and-designs/automotive-development-platforms/s32k-mcu-platforms/s32k148-q176-evaluation-board-for-automotive-general-purpose:S32K148EVB#design>`_).
``U16``, ``R553`` (on the bottom side of the board) needs to be depopulated (Check `SCH-29642 Rev.B <https://www.nxp.com/design/design-center/development-boards-and-designs/automotive-development-platforms/s32k-mcu-platforms/s32k148-q176-evaluation-board-for-automotive-general-purpose:S32K148EVB#design>`_).
This is because the LSF24D part has an active low enable line and removing ``R553`` makes
sure the ``EN`` enable line for the level shifters gets low.

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