topic S32K342 EMMC memory 64GB in S32K

S32K342 EMMC memory 64GB

thomasfelixberg — Mon, 06 Oct 2025 12:09:35 GMT

Hi Guys

For a new project i search a solution to connect a 64GB EMMC memory IC to a S32K342 processor to safe CAN Data on it.

Due to the rough environment i cant use an SD Card.

Do you know if this is possible?

How do i have to connect it?

Is there an EVAL board that can be used to try this out?

davidtosenovjan — Mon, 06 Oct 2025 16:40:40 GMT

RTD_MEM_43_EEP driver supports eMMC cards, but S32K342 does not have uSDHC controller that is necessary.

It is needed to have one of MCU below:

thomasfelixberg — Tue, 14 Oct 2025 10:28:26 GMT

Thanks that helped me.

Do one of you have experience with EMMC and the S32k?

Which maximal size of the EMMC is possible?

Which standard is possible? 4.1 od 5.0?

davidtosenovjan — Wed, 15 Oct 2025 10:07:08 GMT

Regarding size, there is probably no hard limit and it is given only by addressing of eMMC. Supported version you see below:

Unfortunately we don't have experience.

thomasfelixberg — Thu, 16 Oct 2025 05:52:44 GMT

Thank you for your feedback.

Do you have any idea how we can test it?

Is there a demoboard where we can adopt to the EMMC interface an make a demo setup?

On the other hand - do you have a other solution for our problem?

We want to log 4 CANFDs and safe it for a long period of time (5-10 years)

the uC has to start and log very fast

davidtosenovjan — Thu, 16 Oct 2025 11:25:54 GMT

eMMC seems to be used with S32G device, seems there is directly installed memory, not a slot:
https://www.nxp.com/webapp/Download?colCode=UGS32G-VNP-RDB3

S32G is supported by different support group, in case there are questions to this, please create new thread/case. Thanks for understanding

thomasfelixberg — Mon, 20 Oct 2025 06:24:14 GMT

wow - thank you for your support.

Thats what i needed.

best regards

Thomas