S120 RC clock problem

[Alexander Maurer]

Can the S120 work without RTC XTAL? Iam using SOFTDEVICE_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_RC_250_PPM_250MS_CALIBRATION, false); but it still hangs in the softdevice_handler_init function. The internal RC is working fine with the S110 for my hardware?

Thanks Alex

[Petter Myhre]

Hi

Please see this thread for information on which low-frequency sources you can use for our SoftDevices.

If you want to use the RC oscillator, we recommend to use 4000ms or 8000ms calibration, 250ms is not necessary.