I am using MKL15Z128CAD4R MCU. I have enabled wathdog for 1 sec and updated through my application every 1 sec.
/* SIM_COPC: COPT=11,COPCLKS=0,COPW=0 */
SIM->COPC = (uint32_t)0xCu;
but when I enable VLLS0 mode, watchdog still runs and resets MCU. Ideally in low power mode, all the clocks should be stopped.