4-10 Workstation 4 Setup Guide
Workstation 4 Diagnostics
Workstation 4 Diagnostics Utility
PRD.DLL
The PRD, or Persistent Registry Driver manages the WS4 persistent registry.
When the workstation boots and starts WinCE, the PRD retrieves the persistent
registry from the CF Card and places it in RAM as the working registry. As the
workstation operates, changes are made to the working registry by
applications, or utilities such as the CAL, and the PRD periodically copies
these changes to the CF card in the background.
LED.DLL
The LED driver controls the Operator LED color and blink rate while the
operating system is running. At start-up, the Boot Loader controls the Operator
LED, turning it solid green as the operating system starts. A POS application
access the Operator LED through this driver.
EEPROM.DLL
This file provides access to the system board serial EEPROM, used to store the
system board serial number and last power management state.
WS4Beep.DLL
This driver allows POS applications to access the system board beeper. At boot
time, the Boot Loader controls the beeper.
WinCE Version
The current Microsoft WinCE Version number.
MICROS Build Version
The MICROS Build version represents the combination of the WinCE
operating system and it’s internal drivers. An internal driver is not accessible in
the same manner as the WS4 platform drivers located on the \DOC, but are
included in the OS image by the WinCE Platform Builder. All WinCE device
drivers fall into this category. Another example is the 3M Touchscreen drivers
and utilities. Should a change be required to these drivers, a new operating
system image is created and the MICROS Build Version number is updated.
CAL Version
This field displays the current CAL Client Version residing on the workstation.
Using the Soft Keyboard
Some of the diagnostics procedures may require a keyboard for alpha or
numeric entry. No need to connect a physical keyboard, however, a USB or
PS/2 keyboard can be connected if desired. Windows CE provides a soft
keyboard as part of the Software Input Panel. It is located at the right side of
the task bar tray at the lower right of the desktop near the time display.
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