S32KのトピックRe: S32K FlexNVM

S32K FlexNVM

wanglijun — Wed, 15 Sep 2021 12:14:55 GMT

Hello,

I have aquestion about the flexnvm, if FlexNvM is used as progrmaming flash, and need to support FBL flashing. Is there some issue? Is there some points need to be cared?

Thank you!

Re: S32K FlexNVM

danielmartynek — Thu, 16 Sep 2021 08:46:29 GMT

Hello,

You can refer to AN12218 S32K1xx Bootloader

https://www.nxp.com/docs/en/application-note/AN12218.pdf

https://www.nxp.com/docs/en/application-note-software/AN12218SW.zip

The bootloader is placed in FlexNVM.

The FlexNVM can be used for code if is partitioned for DFlash.

Regards,

Daniel

Re: S32K FlexNVM

wanglijun — Thu, 16 Sep 2021 13:31:38 GMT

Hello,

If FlexNvM is partitioned to PFLASH, and this section is application. Is it ok to download by FBL?

Thank you!

Re: S32K FlexNVM

danielmartynek — Fri, 17 Sep 2021 09:14:40 GMT

Hello @wanglijun,

The FlexNVM memory can be partitioned as DFlash not PFlash.

But you can use DFlash for the code.

Regards,

Daniel

Re: S32K FlexNVM

wanglijun — Fri, 17 Sep 2021 14:53:27 GMT

Hello Daniel,

If using DFLASH for the code, and the section is for the application, is it ok to download by FBL?

Thank you!

Re: S32K FlexNVM

danielmartynek — Mon, 20 Sep 2021 08:51:38 GMT

Hello @wanglijun,

Yes, you can use DFlash for an application loaded by a bootloader,

Regards,

Daniel

Re: S32K FlexNVM

wanglijun — Wed, 22 Sep 2021 00:17:06 GMT

Hello,

Ok.

Another question, if it is ok one part of FlexNvM is DFLASH, another part used as PFLASH?

Thank you!

Re: S32K FlexNVM

danielmartynek — Wed, 22 Sep 2021 10:59:43 GMT

Hello @wanglijun,

FlexNVM can't be used as PFlash.

It can be partitioned as Emulated EEPROM or DFlash or split between the two.

But DFlash can be used for the application code.

Regards,

Daniel