RTC0 and SYSTEM OFF

[emag nioj]

Hi I m new to Nordic products and I m just evaluating the nrf5340-PDK. 

 is it possible to enter in SYSTEM OFF and wake up the CPU with RTC0 or RTC1 interrupt?

How To do?

Thank you!
emag 

[emag nioj]

So there is no way to wake up from SYSTEMOFF without external hardware!!! 

Now I m using SYSTEM ON asserting __SEV();__WFE();__WFE(); in the idle cycle on both APPLICATION and NETWORK CPU and I m measuring 100 uA with a multimeeter with RTC0 enabled and HFCLK started. is it ok to have 100uA???

Thank you!
emag

The nrf5340-PDF version is 0.8.0 PCA10095

[Jørgen Holmefjord]

That is correct, however, the difference in current consumption between SYSTEM ON and SYSTEM OFF mode is not very large according to the current version of the OPS.

If you have the HFCLK started, I would have expected the current to be in the 4-500 uA range. Why do you want the HFCLK to run?

The expected current consumption in SYSTEM ON with RTC running on the network/application core is 1.6-2.3 uA, depending on the LFCLK source.

[emag nioj]

I m sending a packet using SHORTS and  mode Nrf_1Mb during a RTC0 Interrupt  in the Network CPU and the current consumption  is about 114-120uA. My problem is that i want to receive for a while after sending the packet but when in RX state the current is about 8 mA

Enabling the DCDC the current goes to 3.4mA but the other board, waiting for the packet, it's no more able to receive the packet as before-

  NRF_REGULATORS_S->VREGMAIN.DCDCEN=REGULATORS_VREGMAIN_DCDCEN_DCDCEN_Enabled;
   NRF_REGULATORS_S->VREGRADIO.DCDCEN=REGULATORS_VREGRADIO_DCDCEN_DCDCEN_Enabled;