Kinetis MicrocontrollersのトピックRe: How to use FlexNVM as data flash on mk64fx512?

How to use FlexNVM as data flash on mk64fx512?

yqypower — Mon, 11 Apr 2022 10:29:53 GMT

I need to use FlexNVM block as basic data flash,my question is that:

FlexNVM block start address is : 0x1000 0000 ,

but In "Erase Flash Sector command" just have 23 bit adress,so how to erase and program FlexNVM block?

The sincerity anticipates your reply!!!!!

jay_heng — Mon, 11 Apr 2022 12:53:25 GMT

The Flash Address[23:0] in below command seq is just offset address.

For P-Flash, the final AHB addr = 0x0 + Flash Address[22:0]

For FlexNVM, the final AHB addr = 0x10000000 + Flash Address[22:0].

When required by the command, Flash Address bit 23 selects between program flash memory (=0) and data flash memory (=1).

jay_heng — Mon, 11 Apr 2022 12:55:20 GMT

You can get reference from flexnvm_convert_start_address() API in SDK/flash driver (fsl_ftfx_flexnvm.c)