Configuring the VXIpc-870 Watchdog Timer

The watchdog is an onboard, general-purpose counter/timer. You can it use to monitor running applications and reset the embedded controller or assert a signal should the system lock up. All watchdog timer features are configured via the Hardware Configuration Settings for the VXIpc-870 in T&M Explorer.

On a watchdog timeout, the watchdog timer can assert any of the following:

• Reset
• VXI trigger line
• VXI interrupt

The watchdog has a 32 kHz reference clock to clock an 8-bit prescaler that then clocks an 8-bit counter to accommodate timeouts up to 2 seconds.

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