User`s manual

Appendix B 55
PXI-3920/3910
User’s Manual
Appendix B: Watchdog Timer Function
Reference
This appendix describes the usage of the watchdog timer
(WDT) function library for the PXI-3920/3910 controller. Watch-
dog timer is a hardware mechanism to reset the system in case
the operating system or an application halts. After starting
watchdog timer, you need to periodically reset the watchdog
timer in the application before the timer expires. Once watch-
dog timer expires, a hardware-generated signal is sent to reset
the system.