Patent ID: 11928008
Assignee: LG ENERGY SOLUTION, LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 4:
5. A watchdog method of a watchdog system including a bootloader area, an application area, a shared memory area, and an external watchdog module, the watchdog method comprising:
transmitting a watchdog refresh request to the external watchdog module by either the bootloader area or the application area;
obtaining a last watchdog refresh timing from the shared memory area;
determining whether a received refresh request timing of the transmitted watchdog refresh request corresponds to a window open time in which a watchdog refresh is able to be performed, by the external watchdog module;
refreshing the watchdog based on the watchdog refresh request in response to the received refresh request timing corresponding to the window open time as a result of the determination of the external watchdog module; and
storing a timing of the refreshing of the watchdog in the shared memory area as the last watchdog refresh timing.