Power consumption of 180 uA during low power System on.

[Surya]

when I am waiting for an event the current consumption is becoming ~180uA continuously.

I am waiting for an event using the following function

void deep_sleep(void)
{
__SEV();
__WFE();
__WFE();

}

there are 2 places where I call this function, one causing a continuous current of ~180uA and another is 3 uA.

i wanted to know what are the possible causes for 180 uA of current.

[Vidar Berg]

Hello,

Is it possible that you may have either a floating input or HFXO active when you get the 180 uA current draw? I can't think of anything else that could lead to this current profile.

[Surya]

HFXO is active in my case

[Vidar Berg]

Thanks for reporting back.

[Surya]

now it is drawing 6 uA where as low power example taking below 3 uA.  do you have any idea what may causing it?

[Vidar Berg]

Have you enabled other peripherals such as the SPIS when you measure 6uA?

[Surya]

no. configuration is same for example and my application. i tried initialising all modules that I use in my app but still i got 3 uA in example and 6 uA in my app. 

used modules : esb, rng, gpiote