Ipl - Motorola MC17 Product Reference Manual

9 - 4 MC17/MC17A/MC17T/MC17U Product Reference Guide
My Pocket PC Contents
Figure 9-2
Use Explorer to locate the host computer directory that contains the file to download. Tap that directory in
6.
the left pane to display its contents in the right pane.
Drag the desired file(s) from the host computer to the desired mobile device folder.
7.
•
Program Files folder: files stored in this folder are discarded after a cold boot.
•
Application folder: files stored in this folder are retained after a cold boot.

IPL

Use IPL to download files onto the mobile computer, to download customized flash file system partitions to the
mobile computer and load hex files to the flash memory of the mobile computer.
There are two types of updates supported by the mobile computer: partitions and files. The file system used by
the mobile computer is the same as the file system used on a desktop computer. A file is a unit of data that can
be accessed using a file name and a location in the file system. When a file is replaced, only the contents of the
previous file are erased. The operating system must be running for a file to be updated, so the IPL cannot
perform individual file updates as it is a stand-alone program that does not require the operating system to be
running.
A typical partition is a group of files, combined into a single "partition" that represents a specific area of storage.
Examples of partitions are the flash file systems such as Platform or Application. (Using the desktop computer
comparison, these partitions are roughly equivalent to a C: or D: hard disk drive.) In addition to the "hard disk"
partitions, some partitions are used for single items such as the operating system, monitor, or splash screen.
(Again using a desktop computer comparison, these partitions are roughly the equivalent of the BIOS or
special hidden system files.) When a partition is updated, all data that was previously in its storage region is
erased - i.e. it is not a merge but rather a replacement operation. Typically, the operating system is not running
when partitions are updated, so IPL can perform partition updates.
Partition images for selected partitions can be created by TCM. All partition images suitable for use by IPL are
in hex file format for transfer by TCM from the development computer to the mobile computer.
Upgrade requirements:
•
The hex files to be downloaded (on development computer)
•
A connection from the host computer and the mobile computer (either serial or wireless)