topic Data flash partition in S32K

Data flash partition

814420552 — Tue, 09 Jun 2020 08:11:59 GMT

hello,

<1>how to partition the FlexNVM to EEPROM? call this following API?

FLASH_DRV_DEFlashPartition

<2>if have partitioned, I want to delete partition information ,how to do?

<3>if have partitioned , I want to partition again, also call the API FLASH_DRV_DEFlashPartition ?

<4>EEPROM has write protect, is there weite protect??

Re: Data flash partition

victorjimenez — Fri, 12 Jun 2020 21:06:40 GMT

Hello kui,

Regarding your questions please see my comments below.

<1>how to partition the FlexNVM to EEPROM? call this following API? FLASH_DRV_DEFlashPartition

Yes. But keep in mind that before calling this function you need to initialize the driver, this is done with the function FLASH_DRV_Init.

<2>if have partitioned, I want to delete partition information ,how to do?

For this, you can use the function FLASH_DRV_EraseSector.

<3>if have partitioned , I want to partition again, also call the API FLASH_DRV_DEFlashPartition ?

Yes, you can call that function again.

<4>EEPROM has write protect, is there weite protect??

Could you please clarify this question?

As additional information, the SDK for the S32K144 includes an example named "flash_partitioning". This example will help you to understand how the flash partitioning works.

Have a great day,

Victor

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Re: Data flash partition

814420552 — Sat, 13 Jun 2020 04:26:56 GMT

hello victor

<4>EEPROM has write protect, is there read protect??

Re: Data flash partition

victorjimenez — Tue, 23 Jun 2020 20:20:58 GMT

Hello kui,

Thanks for the clarification! No, the EEPROM doesn't have read protect.

Regards,

Victor