This anomaly applies to Revision 1, build codes CLAA-D00, QKAA-D00.
Application
LFCLK cannot be started. PCLK32KI is stopped.
LFCLK calibration is started, and the application core soft resets before the calibration is complete.
LFCLK cannot be started and watchdog timer doesn't operate.
if (*(volatile uint32_t *)0x50032420 & 0x80000000)
{
/* Reset occured during calibration */
NRF_CLOCK_S->LFCLKSRC = CLOCK_LFCLKSRC_SRC_LFSYNT;
NRF_CLOCK_S->TASKS_LFCLKSTART = 1;
while (NRF_CLOCK_S->EVENTS_LFCLKSTARTED == 0) {}
NRF_CLOCK_S->EVENTS_LFCLKSTARTED = 0;
NRF_CLOCK_S->TASKS_LFCLKSTOP = 1;
NRF_CLOCK_S->LFCLKSRC = CLOCK_LFCLKSRC_SRC_LFRC;
}