National Instruments TPC-2012 IOCTL_WDT

Appendix D Watchdog Timer Programming on WinCE

TPC-2012 User Manual D-4 ni.com

•lpOutBuffer: The DWORD points to your watchdog time setting.

The watchdog time settings are:

•nOutBufferSize: unused

IOCTL_WDT_SETTIMEOUT

Sets the watchdog time setting.

•lpInBuffer: The DWORD points to your watchdog time setting.

Thewatchdog time settings are:

•nInBufferSize: unused

•lpOutBuffer: unused

•nOutBufferSize: unused

Setting Time

02 s

1 (default) 5 s (default)

210 s

315 s

430 s

545 s

660 s

Setting Time

02 s

1 (default) 5 s (default)

210 s

315 s

430 s

545 s

660 s

Contents

Main Page Important Information Warranty Copyright Trademarks Patents Compliance Compliance with FCC/Canada Radio Frequency Interference Regulations Determining FCC Class FCC/DOC Warnings Class A Conventions Contents Page General Information Introduction I/O Ports Cleaning System Setup Important Safety Information Setup Touchscreen Calibration + Panel Mounting Jumpers and Connectors Jumper and Connector Functions Page Page Page Page Dimensions System Kernel LCD Touchscreen Power Fuse Environment Safety Electromagnetic Compatibility CE Compliance Environmental Management Waste Electrical and Electronic Equipment (WEEE) RoHS B Serial Port Settings COM1/COM2/COM3 Connector Pinout COM4 Connector Pinout and Settings Page C Watchdog Timer Programming Overview Watchdog Timer Programming Page Page Example Programs Example 1: Enable the Watchdog Timer and Set 10 s as the Timeout Interval Example 2: Enable the Watchdog Timer and Set 5 Min as the Timeout Interval Example 3: Enable the Mouse to Reset the Watchdog Timer Example 4: Enable the Keyboard to Reset the Watchdog Timer Example 5: Generate a Timeout Signal without Timer Counting D Watchdog Timer Programming on WinCE DeviceIOControl Parameters Page How to Use the Control Codes IOCTL _WDT_ENABLE IOCTL _WDT_DISABLE IOCTL_WDT_STROBE IOCTL_WDT_GETTIMEOUT IOCTL_WDT_SETTIMEOUT IOCTL_WDT_REBOOT Programming Example Page E F Touchscreen Configuration Touchscreen Calibration G Fuse Replacement H Technical Support and Professional Services Index A C D E K L M N P W