topic FTM2 not work on K22 in Kinetis Microcontrollers

FTM2 not work on K22

LArmstrong1985 — Tue, 05 May 2020 09:32:00 GMT

Hi,

I've a strange problem with FTM timer on my custom board based on MK22FN1M0AVLH12.

I'm be able to initialize all FTM timer except FTM2.

In particular the application crash when it execute FTM_SetPwmSync on FTMInit function.

The strange thing is that it seems non correctly clocked though the clock is previously enable

also in the FTMInit function.

I read in this post that there is a bug in SDK 2.3.1 that is the last version for this micro

Bug in 2.3.1 K22 SDK for FTM Input Capture

Is this the same problem?

How come the latest version of the SDK is 2.3.1 for this micro while for the FRD_K22 card it is 2.7.0?

Can I do easily a manual update or no?

Re: FTM2 not work on K22

LArmstrong1985 — Tue, 05 May 2020 13:06:37 GMT

I forgot to attach the example project that I use.

There he is!

Re: FTM2 not work on K22

nxf56274 — Wed, 06 May 2020 02:07:48 GMT

Hi,

Actually you are right. Some sdk is lack of our maintenance.

Have a great day,
TIC

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Re: FTM2 not work on K22

LArmstrong1985 — Wed, 06 May 2020 09:12:07 GMT

Ok,

the error is also in the Reference Manual (Document Number: K22P64M120SF5V2RM Rev. 5, March 2015) for

this specific package.

Is possible to copy SDK 2.7.0 from example project of another micro like the FRDMK22 board?

It seems to me that the SDK are generic and not related to the single hw...

Re: FTM2 not work on K22

nxf56274 — Wed, 06 May 2020 09:19:28 GMT

Hi,

Yes. But don't forget modifying the linker file. The same k22 series also has the flash and sram's difference.

Have a great day,
TIC

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