Kinetis Design Studio中的主题 Re: Frequency output change on KL25Z

Frequency output change on KL25Z

tommyb90 — Wed, 09 Nov 2016 14:12:43 GMT

Hi to everyone,

Using an FRDM-KL25Z dev. board I have to give a frequency output and update its period every once in a while.

I tried using the TimerOut component on KDS3.0, but it seems that I am not able to change the period of the timer (I wanted to enable the SetPeriodUS method, but it was not possible).

I also tried using the PWM component, but again I am not able to set the period of the output signal.

Is there another way to generate this kind of output?

Thanks in advance,

Tommaso

Re: Frequency output change on KL25Z

Alice_Yang — Thu, 10 Nov 2016 02:33:45 GMT

Hello Tommas,

Does this can help you ?

https://community.nxp.com/message/346460

Alice

Re: Frequency output change on KL25Z

tommyb90 — Mon, 14 Nov 2016 07:56:28 GMT

Thanks for your reply,

I ended up fixing the issue by giving the PPG component an interval in which the period could be valid (set interval instead of fixed value inside the period setting window). This enabled the SetPeriodUS Method, but limited my choice in the frequency.

Thanks for everything

Tommaso