topic Re: How do you access the persistent memory/non volatile area in 22F? in Kinetis Microcontrollers

How do you access the persistent memory/non volatile area in 22F?

cwati — Mon, 29 Feb 2016 20:25:07 GMT

Is there an existing way, or readily available API in the K22F bare metal code that comes with the basic demos, to read/write into persistent memory? (So the values are stored across reboot).

Specifically, we're using MK22FN256xxx12, so it's not quite the Freedom board since it has less flash.

Thanks,
Cecylia

Re: How do you access the persistent memory/non volatile area in 22F?

jeremyzhou — Tue, 01 Mar 2016 06:40:22 GMT

Hi Cecylia,

I'd highly recommend you to use the stand software driver which consist of a set of APIs, and the stand software driver for the C90TFS/FTFx flash will provide driver functions to perform high-speed program/erase operation.

Please go for download the driver through the link as below, it also has some demo for referring to.

http://cache.freescale.com/files/32bit/software/C90TFS_FLASH_DRIVER.exe?fromsite=zh-Hans
Have a great day,
Ping

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Re: How do you access the persistent memory/non volatile area in 22F?

cwati — Wed, 02 Mar 2016 03:28:00 GMT

Thank you! We'll give it a try.