This change should have been in #165. Sorry, I somehow overlooked it.
"For nRF52, the application must ensure calibration at least once every 8 seconds to ensure +/-500 ppm clock stability. The recommended configuration for NRF_CLOCK_LF_SRC_RC on nRF52 is rc_ctiv=16 and rc_temp_ctiv=2. This will ensure calibration at least once every 8 seconds and for temperature changes of 0.5 degrees Celsius every 4 seconds." (Nordic documentation)
This change should have been in #165. Sorry, I somehow overlooked it.
"For nRF52, the application must ensure calibration at least once every 8 seconds to ensure +/-500 ppm clock stability. The recommended configuration for
NRF_CLOCK_LF_SRC_RCon nRF52 isrc_ctiv=16andrc_temp_ctiv=2. This will ensure calibration at least once every 8 seconds and for temperature changes of 0.5 degrees Celsius every 4 seconds." (Nordic documentation)