Kinetis MicrocontrollersのトピックRe: About LPTMR to reset KL02 MCU

About LPTMR to reset KL02 MCU

thoomanwang — Mon, 24 Mar 2014 09:02:31 GMT

KL02 series MCU is no LLWU module , Can i use LPTMR interrupt to reset MCU in VLLS1 mode, if it is OK, how to config ?

Also, the source code available on the website FRDM is not driven SPI modules , can i use MKL05 FRDM SPI code for MKL02?

Re: About LPTMR to reset KL02 MCU

Wlodek_D_ — Mon, 24 Mar 2014 09:21:26 GMT

Hello,

Thank you for your post, however please consider moving it to the right community place (e.g. Kinetis Microcontrollers ) to get it visible for active members.

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Re: About LPTMR to reset KL02 MCU

xiaodong_zhang — Tue, 25 Mar 2014 05:48:44 GMT

hi Thooman,

KL02 don't have Low-Leakage Wake-up Unit (LLWU) module, so you don't use LPTMR interrupt to wakeup MCU in VLLS1 mode.

Re: About LPTMR to reset KL02 MCU

xiaodong_zhang — Tue, 25 Mar 2014 05:57:24 GMT

please see KL02 Sub-Family Reference Manual

VLLS1 only support RESET pin wakeup.

Re: About LPTMR to reset KL02 MCU

jeremyzhou — Wed, 26 Mar 2014 09:22:07 GMT

Hi Thooman,

Thank you very much for your focus on Freescale Kinetis product. I am glad to provide service for you.

I've had a go through the KL02's RM and it says the LPTMR interrupt can be used to generate a wakeup from any low-power mode, including the low-leakage modes.

I'd like to suggest that you can through the link below to download the FRDM-KL02's demo code which include a lowpower mode code. Wish my support can support.

http://cache.freescale.com/files/32bit/software/KL02-SC.zip

Have a nice day!!

Ping

Re: About LPTMR to reset KL02 MCU

thoomanwang — Thu, 27 Mar 2014 04:22:06 GMT

Thanks!

I had download the source code http://cache.freescale.com/files/32bit/software/KL02-SC.zip

My problem had solved.