Kinetis Microcontrollers中的主题 Re: RTC time extracting in ms

RTC time extracting in ms

Amit_Kumar1 — Thu, 26 Sep 2013 10:40:10 GMT

I am using TWR-K20D50M development board with code warrior 10.4 along with processor expert 10.2 . I have configured the RTC clock and all the measurement is coming from "seconds". I was wondring how to get readings in Milli seconds from the board? and also can we make a function like RTC1_OnMilliSecond(); like the one which is present in the processor expert for seconds?

Best Regards,

Amit Kumar

Re: RTC time extracting in ms

Kan_Li — Fri, 27 Sep 2013 02:41:45 GMT

Hi Amit Kumar,

I am sorry, that is out of the RTC spec, so I would recommend you using another type of timer to do that, for example, FlexTimer, PIT and LPTimer.

Hope that helps,
B.R

Kan

Re: RTC time extracting in ms

Amit_Kumar1 — Fri, 27 Sep 2013 02:53:56 GMT

Hi Kan_Li

which one among the above is more accurate and easy to configure ?

Regards

Amit Kumar

Re: RTC time extracting in ms

Kan_Li — Fri, 27 Sep 2013 03:04:44 GMT

Hi Amit Kumar,

Among them, I think LPTimer is more easy to configure and accurate as it can use the external reference clock as the clock source.

Hope that helps,

B.R

Kan

Re: RTC time extracting in ms

Amit_Kumar1 — Fri, 27 Sep 2013 05:03:47 GMT

Thanks