Intel ETX CD manual Special Features, Watchdog Timer, Configuration

5 Special Features

5 Special Features

5.1Watchdog Timer

This feature is implemented in the Winbond 83627HF super I/O. You can configure the Watchdog Timer (WDT) in BIOS setup to start after a set amount of time after power-on boot. The WDT can also be controlled by the JIDA32 Library API (Refer to Appendix F: JIDA Standard). The application software should strobe the WDT to prevent its timeout. Upon timeout, the WDT resets and restarts the system. This provides a way to recover from program crashes or lockups.

Configuration

You can program the timeout period for the watchdog timer in two ranges:

➤

➤

1-second increments from 1 to 255 seconds

1-minute increments from 1 to 255 minutes

Contact Kontron Embedded Modules technical support for information on programming and operating the WDT.

Kontron User's Guide ETX CD 40