Hi, I'm testing the current consumption on a nRF52810.
I use PPKII to measure the current that the chip draws.
The software does the following.
Wakes up every 1 second and transmits a packet. When packet sent successfully it goes back to sleep where it turns off high freq clock and operates only from external slow clock.
We use the RTC peripheral to count time. When RTC peripheral triggers an interrupt the system wakes up. That happens every 1 second.
I noticed there are some heart beats at about 8uA. Any idea what is this?
In the picture you can see two TX peaks and several unknown heart beats that I don't know where they come from. There are no other peripherals working.
I tested the following.
Initialized clocks, disabled high frequency clock. All peripherals in default state.
This is what I see
EDIT:
I see the same with only the following code
{
NRF_POWER->DCDCEN = 1;
__WFE();
while(true){
}
return (0);
}
