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* Watch Dog Timer testing program for Winbond W83977EF superIO *
* *
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The Watch Dog Timer can monitor the system's status. Once you give a value to Watch
Dog Timer, the timer will begin to count down. If the system is idle or hang, it
will reboot when the timer timeout.
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How to test the Watch Dog Timer?
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For MSDOS, Windows 95 or 98
Open a DOS command prompt and execute the following command.
wdt2000 <n> : n = second value.
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In order to simplify the programming code, we provide a sub function for the
programmer to implement their software. For MSDOS, Windows 95 or 98,
the sub function format is as follow:
out_port (int IOport_number, int Counter_value)
IOport_number: 0x370 -->W83977EF's configuration port.
Counter_value: 0 ~ 15300 (write a zero to disable the timer)
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How to use sub function?
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For MSDOS, Windows 95 or 98
Make a project program with wdt2000.cpp under Turbo C/C++.
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.