topic Re: fsl_ftm KSDK v1.3 setup in Kinetis Software Development Kit

fsl_ftm KSDK v1.3 setup

shauldorf — Sun, 31 Jul 2016 12:55:35 GMT

Does anyone know how to setup "fsl_ftm" component to measure Pulse Width using KSDK1.3 + Processor Expert.

Using TU_LDD (without KSDK) component my application it is working perfectly (My input pin is PTC4 / J2_4).

I'm using KDS 3.2 and KSDK 1.3

Re: fsl_ftm KSDK v1.3 setup

Alice_Yang — Mon, 01 Aug 2016 07:50:02 GMT

Hello Shaul,

You can use the two method "FTM_DRV_SetupChnDualEdgeCapture()" and

"FTM_DRV_SetupChnInputCapture" to test .

If have any question ,you can contact us .

Hope it helps

Have a great day,
Alice

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Re: fsl_ftm KSDK v1.3 setup

shauldorf — Mon, 01 Aug 2016 13:59:13 GMT

Alice Thanks;

I forgot to mention that I’m using FRDM-K64 and I want to read output from Infrared controller.

Using “TU_LDD” (Kinetis component without KSDK) was straight forward.

But using “KSDK “ I’m confused with Component Inspector window Configuration options

how to configure the component to measure input durations.

I guess that it is need to configure something equivalent to what I have done when I used “TU_LDD”:

Counter frequency and direction , Mode capture, Capture input pin (PTD2 . J2_4), Input edge, Interrupt ….. etc.

And then use relevant methods provided with the component.

I need clarification on component configuration using component window. The demos that I find are for PWM applications.

Regards

Shaul

Re: fsl_ftm KSDK v1.3 setup

Alice_Yang — Tue, 02 Aug 2016 03:07:17 GMT

Hello Shaul,

Up to now , under the KSDK component of "fsl_ftm" can not configure the capture ,

only can use the method to configure by yourself.

While you can use the component of "Init_FTM" under KSDK project :

Hope it helps

Have a great day,
Alice

Re: fsl_ftm KSDK v1.3 setup

shauldorf — Tue, 02 Aug 2016 10:13:03 GMT

Hello Alice

When I provide ISR Name using Init_FTM KSDK generates ISR warning .

1. My guess is that ISR name is wrong , but what is a legal name

2. I understand that using your solution I will have to write my own ISR using direct access to F64 "ftm and gpio" registers, is it correct.

3. Do you know any other alternative that saves digging K64 reference manual

Regards

Shaul

Re: fsl_ftm KSDK v1.3 setup

Alice_Yang — Thu, 04 Aug 2016 02:56:47 GMT

Hello Shaul,

1. In the KSDK project, the ftm0 interrupt name is FTM0_IRQHandler :

So if you want use the ksdk in your project, please use this interrupt name.

2. You also can directly configure the PE component on the KSDK :

3.I only know the PE and KSDK .

Hope it hoelps

Have a great day,
Alice

Re: fsl_ftm KSDK v1.3 setup

shauldorf — Thu, 04 Aug 2016 10:10:35 GMT

Alice Thanks ,

Before I start I want to validate that I understand your response.

Using Init_FTM only initialize “fsl_ftm” component to input capture mode.

User responsibility is to write all the methods (including ISR).

Re: fsl_ftm KSDK v1.3 setup

Alice_Yang — Fri, 05 Aug 2016 06:54:16 GMT

Hello Shaul,

If you use Init_FTM, the interrupt function need write by yourself .

Under this component , there only generate one init function refer to your configuration .

So in KSDK . you can use the function FTM_SetupDualEdgeCapture() , it can be used to measure the pulse width of a
signal.

Hope it helps
Have a great day,
Alice