About LPTMR to reset KL02 MCU

[thoomanwang]

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?

[jeremyzhou]

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

[thoomanwang]

Thanks!

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

My problem had solved.

[xiaodong_zhang · Accepted solution]

please see KL02 Sub-Family Reference Manual

VLLS1 only support RESET pin wakeup.

[xiaodong_zhang]

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.

[Wlodek_D_]

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