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Systick activation leads to a high power consumption in Power Down Mode (LPC11u68)

Question asked by lpcware Employee on Jun 15, 2016
Latest reply on Sep 26, 2016 by cwembedded
Content originally posted in LPCWare by fmoyagarcia on Fri May 06 09:49:00 MST 2016
Hi everyone,

I am having problems trying to develop a low power application that uses active, sleep and power down modes.

It seems to me that from the point that I start the SysTick for the first time, I am unable to have a current under 1mA @2,8V.

Also, is the SysTick stopped in Power Down mode in this microcontroller? I have worked with other Cortex M0+ from freescale and they do not stop the SysTick.

Do I have to disable manually the clocks to the peripherals before entering in power down mode?

Thank you very much in advance.