Kinetis MicrocontrollersのトピックDoes MK70FX512VMJ12 support P-flash swap?

Does MK70FX512VMJ12 support P-flash swap?

pbanta — Mon, 24 Sep 2012 14:03:53 GMT

I've started working on software for a board that has an MK70FX512VMJ12. I would like to use the Program Flash Memory Swap feature available on Kinetis parts but it's not clear to me whether or not a K70 with both Program flash and FlexNVM can support this feature.

Thanks,

Paul

Re: Does MK70FX512VMJ12 support P-flash swap?

pbanta — Mon, 24 Sep 2012 19:44:18 GMT

The K70 Reference Manual is confusing on this.

Section 3.5.1.2:

• For devices that contain FlexNVM: 2 blocks of program flash consisting of 4 KB

sectors

Section 3.5.1.3:

For the devices containing program flash and FlexNVM:

• Since there is only one program flash block, the program flash swap feature is

not available.

So does the part have 2 blocks of program flash or 1 block ?

Re: Does MK70FX512VMJ12 support P-flash swap?

DavidS — Tue, 25 Sep 2012 16:18:03 GMT

Hi pbabta,

The part number: MK70FX512VMJ12 indicates that the device has FlexMemory (half the flash can be used for program or data or eeprom emulation or some mix of each).

Devices that have FlexMemory do not have the flash swap feature.

The devices with Program Flash only have this feature.

Attached is secret part number decoder ring PDF.

In the reference manual table 2-11 shows the memory with respect to part number:

Regards,

David

Re: Does MK70FX512VMJ12 support P-flash swap?

Francuzzo — Mon, 15 Oct 2012 14:33:06 GMT

Ciao David,

just to be "DEFINITIVE", is it correct to say:

"....when the p/n has the "X", so the FlexMemory is there, doesn't matter if you don't use it at all, the SWAP capability is missed ..."

Isn't it ?

If yes, is a pitty for the flexibility.

Thanks a lot in advance

Have a good week

Franco

Re: Does MK70FX512VMJ12 support P-flash swap?

DavidS — Mon, 15 Oct 2012 14:58:40 GMT

Hi Franco,

All you say is correct. With "X" no SWAP capability. Sorry.

Have a good week as well.

Regards,

David

Re: Does MK70FX512VMJ12 support P-flash swap?

Francuzzo — Mon, 15 Oct 2012 15:30:12 GMT

Ciao David,

sorry but I want to be really definitive avoiding any missunderstanding:

"....Doesn't matter the MK70 itselselves (the title of this tread):

In any p/n of all the actual Kinetis K family, when the Flex memory is in, no SWAP is possible..."

Sorry for the further question

Franco