Initial Program Loader (Ipl); Using The Keyboard - Symbol PDT 7500 Series Product Reference Manual

PDT 7500 Series Product Reference Guide for Windows

Initial Program Loader (IPL)

Initial Program Loader (IPL) is a small utility program that is built into each terminal. The
purpose of IPL is to provide a simple method of updating the flash contents via the serial port
or cradle. The images that IPL can accept are in the form of "hex" files" that contain not only
the data to be downloaded to the terminal, but also sufficient extra information to ensure that
each hex file contains an image for a single partition. Hex files for standard system
components such as the boot loader and Windows CE Core are provided by Symbol. Hex
files for custom components, such as disk images or custom partition maps are built on a PC
using the TCM program. IPL is only capable of loading whole partitions (it cannot update
individual files in a disk image).

Using the Keyboard

Operation of the IPL is controlled by the keyboard. IPL recognizes the following keys:
Cursor Up
!
Cursor Down
!
Enter or Trigger
!
Backlight
!
Lighter
!
Darker
!
The effects of these keys are as follows:
Cursor Up/Down Whenever these keys are pressed in a menu screen, they cause the previous/
Enter or Trigger
Backlight
Lighter/Darker
6-16
next item in the menu to be highlighted. Moving off the end of a menu causes
a wrap to the other end of the menu list. If the menu is longer than the screen
is deep, then screen will automatically scroll up or down to keep the
highlighted item visible on the screen.
Whenever this key is pressed in a menu screen, the currently highlighted item
is selected, and IPL advances to the next screen. If the system supports more
than one trigger, then any of the triggers can be used as the Enter key.
Pressing this key toggles the backlight (if present) between on and off. This
key is always active (even if IPL is not in a menu screen).
Each press of these keys adjusts the screen contrast up or down. The keys are
always active (even if IPL is not in a menu screen).
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CE