topic Re: How can i capture PWM duty cycle? in S32K

How can i capture PWM duty cycle?

eautopower — Tue, 06 Jun 2017 01:20:37 GMT

Hi Okamies:

How can i capture PWM duty cycle? Does SDK have the associated calling function? If yes, could you tell me which one?

Besides, I have another question:

How do I modify the bootloader and APP momery addresses?

Re: How can i capture PWM duty cycle?

danielmartynek — Thu, 08 Jun 2017 13:31:04 GMT

Hi,

Regarding the SDK, there is FTM_DRV_GetInputCaptureMeasurement() function that returns a value calculated from Channel (n, n+1) Value Registers based on the timer configuration.

This function returns Rising Edge Period Measurement in the example in Design Studio (S32K144_FTM_Signal_Measurement). This can be changed to Period On Measurement.

There is also an application note for the FlexTimer: Features and Operation Modes of FlexTimer Module on S32K

with software.

Regards,

Daniel

Re: How can i capture PWM duty cycle?

1462993357 — Sat, 25 Apr 2020 00:04:05 GMT

Hi,Daniel Martynek

This"AN5303SW.zip" is invalid, can you share it again.thank you

Re: How can i capture PWM duty cycle?

danielmartynek — Mon, 27 Apr 2020 09:27:21 GMT

Hi 1462993357@qq.com,

You can find all the S32K1xx application notes here:

32-bit Automotive General Purpose MCUs | NXP

Regards,

Daniel