s32k144 FlexNVM and ECC Question

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s32k144 FlexNVM and ECC Question

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kmh48301
Contributor IV

Hi

 

I'm using s32k144 FlexNVM.

And I need to know Physical characteristic of FlexNVM more.

 

1. Is FlexNVM NAND flash? (I think P-Flash is NOR Flash because of XIP)

 

2. What if Power off happened during Erase Sector Command in FlexNVM?

(After this happening, The sector has no change?)

 

3. As I know, FlexNVM has ECC. Is this application is on FlexNVM flash hardware?

How does it work? Please explain to me briefly

 

Thanks

Best regards

Phillip

 

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1 Solution
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danielmartynek
NXP TechSupport
NXP TechSupport

Hi Philip.

 

1. It is a NOR flash.

 

2. Interruption of an erase or program command can lead to corruption of the flash content.

AN12130 Production Flash Programming Best Practices for S32K1xx MCUs

Chapter 5 Common problems

https://www.nxp.com/docs/en/application-note/AN12130.pdf

 

3. Yes, it is implemented in FlexNVM HW.

For every 64 bits of data there are 8 parity bits.

AN12522 S32K1xx ECC Error Handling

https://www.nxp.com/docs/en/application-note/AN12522.pdf

 

Best regards,

Daniel

 

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kmh48301
Contributor IV

Hi Daniel.

 

Thank you for reply.

 

1. Could you please let me know the NOR Flash module name?

 

Best regards,

Phillip

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danielmartynek
NXP TechSupport
NXP TechSupport

Hi,

All the embedded flash is NOR.


BR, Daniel

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1,440 Views
danielmartynek
NXP TechSupport
NXP TechSupport

Hi Philip.

 

1. It is a NOR flash.

 

2. Interruption of an erase or program command can lead to corruption of the flash content.

AN12130 Production Flash Programming Best Practices for S32K1xx MCUs

Chapter 5 Common problems

https://www.nxp.com/docs/en/application-note/AN12130.pdf

 

3. Yes, it is implemented in FlexNVM HW.

For every 64 bits of data there are 8 parity bits.

AN12522 S32K1xx ECC Error Handling

https://www.nxp.com/docs/en/application-note/AN12522.pdf

 

Best regards,

Daniel

 

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