B&B Electronics PC Watchdog Timer Card ATRWDT Manuel d'utilisateur

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P104-WDG-CSM User Manual 10Chapter 2: Installation A printed Quick-Start Guide (QSG) is packed with the board for your convenience. If you’ve alrea

P104-WDG-CSM User Manual 11Hardware Installation Before installing the board, please run Setup.exe. The Setup program can be used to assist in config

P104-WDG-CSM User Manual 12 Figure 2-1: Fan Connection Diagram

P104-WDG-CSM User Manual 13Chapter 3: Address Selection The Watchdog Timer uses one PCI address space, occupying 16 consecutive register locations.

P104-WDG-CSM User Manual 14Chapter 4: Programming This section of the manual contains information to assist you in developing programs for use with th

P104-WDG-CSM User Manual 15 82c54 Registers (BASE +0 thru +3) See Appendix A of this manual. Status Register (BASE+4) Bit assignments of the Status R

P104-WDG-CSM User Manual 16A/DC Channel #3 (BASE+B) Read 8-bit dedicated analog input (light sensor). Dark = FF, Max Light = 00 82c54 Out 2 (BASE+C)

P104-WDG-CSM User Manual 17To Program the Watchdog Interval 1. Disable the counters. 2. Program the counter modes 3. Program the desired time d

P104-WDG-CSM User Manual 18 4. Load CTR0,1,2 with reset delay See Appendix A 5. Enable Watchdog Write BASE+7 Then, before the first timeout oc

P104-WDG-CSM User Manual 19Background Watchdog Mode An alternative method to refresh the counters that provides some flexibility but potentially redu

P104-WDG-CSM User Manual 2 Notice The information in this document is provided for reference only. ACCES does not assume any liability a

P104-WDG-CSM User Manual 20Chapter 5: Connector Pin Assignments One 40-pin right-angle shrouded 2x20 header connector with 0.1” spacing provides acce

P104-WDG-CSM User Manual 21Chapter 6: Specification Watchdog Timer • Time-out: Software selectable from 2 sec. to 2060 sec • Pulse Width: Out

P104-WDG-CSM User Manual 22Appendix A: Programmable Interval Timer This Appendix includes basic information about the type 8254 Counter/Timer chip.

P104-WDG-CSM User Manual 23 Mode 5: Hardware Triggered Strobe In this mode, the counter will start counting after the rising edge of the trigger input

P104-WDG-CSM User Manual 24 Reading and Loading the Counters If you attempt to read the counters on the fly when there is a high frequency input, you

P104-WDG-CSM User Manual 25OUT: Current state of counter output pin. NC: Null count. this indicates when the last count loaded into the counter reg

P104-WDG-CSM User Manual 26Customer Comments If you experience any problems with this manual or just want to give us some feedback, please email us

P104-WDG-CSM User Manual 3Warranty Prior to shipment, ACCES equipment is thoroughly inspected and tested to applicable specifications. However, shoul

P104-WDG-CSM User Manual 4 TABLE OF CONTENTS Chapter 1: Introduction ...

P104-WDG-CSM User Manual 5Chapter 1: Introduction This multifunction card contains a watchdog timer. Additionally, two additional models with multip

P104-WDG-CSM User Manual 6The Watchdog card can generate an interrupt request one Counter 0 period-width before the reset timeout. For example, if a r

P104-WDG-CSM User Manual 7P104-WDG-CSM: Standard Watchdog with Computer Status Monitor This model provides a fully programmable watchdog with open col

P104-WDG-CSM User Manual 8P104-WDG-CSMA: Standard Watchdog with Advanced Computer Status Monitor This model provides a fully programmable watchdog wit

P104-WDG-CSM User Manual 9Additional Fused External Power Pin 38 has a 0.3A (300mA) (at room temperature) resettable fuse connected to +5V. At +85C