S32K FlexNVM

[wanglijun]

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!

[danielmartynek]

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

[wanglijun]

Hello,

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

Thank you!

[danielmartynek]

Hello @wanglijun,

The FlexNVM memory can be partitioned as DFlash not PFlash.

But you can use DFlash for the code.

Regards,

Daniel

[wanglijun]

Hello Daniel,

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

Thank you!

[danielmartynek]

Hello @wanglijun,

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

Regards,

Daniel

[wanglijun]

Hello,

Ok.

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

Thank you!

[danielmartynek]

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