topic Re: S32K1xx D-Flash Configuration in S32K

S32K1xx D-Flash Configuration

Kevin74 — Wed, 18 Jun 2025 08:19:00 GMT

Hello, all

now we have a question, that the S32K1xx Serial MCU, e.g. S32K148, the D-Flash area can be reconfigurat as P-Flash to run code?

can we do this, if yes, how?

Many Thanks and Best Regards

Re: S32K1xx D-Flash Configuration

davidtosenovjan — Wed, 18 Jun 2025 14:27:07 GMT

Yes, it is possible.

It is needed to perform flash_partitioning operation according user configuration. Pay attention to AN11983 - Using the S32K1xx EEPROM Functionality:

https://www.nxp.com/docs/en/application-note/AN11983.pdf

specifically Tables 3 – 5.

Retention and endurance is the same in this use:

Re: S32K1xx D-Flash Configuration

Kevin74 — Fri, 20 Jun 2025 06:47:39 GMT

Hello davidtosenovja:

Many Thanks! i will check this option.

Best Regards!

Re: S32K1xx D-Flash Configuration

Kevin74 — Mon, 23 Jun 2025 08:51:17 GMT

Hello,

But what i mean is whether D-Flash can run as P-Flash, for this need man do some reconfiguration of D-Flash or can man direct store the user program code into D-Flash and run them?

Many Thanks and BR

Re: S32K1xx D-Flash Configuration

davidtosenovjan — Wed, 25 Jun 2025 08:14:57 GMT

Yes, as default configuration is not valid:

Program partition operation is needed to do once per device lifetime, it is not supposed to be done in every startup.