s32K144 FlexNVM cache is not updated.

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s32K144 FlexNVM cache is not updated.

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wenhongkui
Contributor II
S32K144 writes to FLexNVM, and then reads it immediately, and the data will be incorrect. Read a other address and read it, will get the right result. I guess it should be that cache is not updated.
How to update the cache or temporary close of the manual FlexNVM?

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danielmartynek
NXP TechSupport
NXP TechSupport

Hi,

This happens when the DFlash prefetch buffer is not disabled in OCMDR1 register before reprogramming the data.

 

Regards,

Daniel

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zky
Contributor I

Hi ,Daniel and Mr wen

I met a similar problem with you.i can access other ram but not FlexRam(0x14000000) by swd interface when i write data to these addresses,read it will be incorrect,it alway is 0x00000000,but i can write data to other ram and read from it.Would you pls do me some favor about this problem?

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