S32K FlexNVM

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S32K FlexNVM

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wanglijun
Contributor II

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!

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7 Replies

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danielmartynek
NXP TechSupport
NXP TechSupport

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

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wanglijun
Contributor II

Hello,

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

Thank you!

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danielmartynek
NXP TechSupport
NXP TechSupport

Hello @wanglijun,

The FlexNVM memory can be partitioned as DFlash not PFlash.

But you can use DFlash for the code.

 

Regards,

Daniel

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191 Views
wanglijun
Contributor II

Hello Daniel,

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

Thank you!

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176 Views
danielmartynek
NXP TechSupport
NXP TechSupport

Hello @wanglijun,

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

 

Regards,

Daniel

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163 Views
wanglijun
Contributor II

Hello,

Ok.

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

Thank you!

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danielmartynek
NXP TechSupport
NXP TechSupport

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.

danielmartynek_0-1632308249239.png

 

Regards,

Daniel

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