Radio won't work after HFCLKSTOP

[George555]

Hi,

I'm using nRF52810 and I'm trying to achieve a power consumption. I don't use any softdevice or nRFSDK at the moment. I wrote my own drivers with direct access to the device's registers.

Everything works fine except an issue I noticed with the HFCLOCK and the Radio.

Every time I turn off the HFCLOCK using the register  TASKS_HFCLKSTOP = 1; and then I turn it back on the Radio peripheral stops working...

Am I missing anything?

This is the code I'm using to turn on the HFCLOCK

EVENTS_HFCLKSTARTED = 0;
TASKS_HFCLKSTART = 1;
while(EVENTS_HFCLKSTARTED == 0);

[Håkon Alseth]

Hi,

 

When you're stopping the HFCLK (ie. the external HFXO), you also need to stop the radio prior to this step. The 32M signal must be sourced from the HFXO when using the radio.

 

Kind regards,

Håkon