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Firmware Updates
6.4.2.1
Script Basics for Loading the Firmware Update File
The firmware update file contains all of the programming code that constitutes the new release of G-III
Reference Receiver firmware. This file is in ASCII hexadecimal and uses a modified implementation of the
S-Record format.
The example below shows a small S-Record format file.
S0~P~G3IOM
S0~D~G3IOM
S0~V~AW3MM0000RN0000
S0~T~APP
S31D0000000006E0A6E10100000028000000480008000000001CE001001CE3
S31D0000001850000000D0344D00710040107A18512D4733494F4D000000F9
S31D00000030000000000000000041505000000000000000000000000000D1
S50000
S70000
Each line within an S-Record format file is an individual S-Record.
To update the G-III Reference Receiver, all of the S-Records in the firmware update file must be loaded onto
the G-III Reference Receiver using the SOFTLOADSREC command. The SOFTLOADSREC command can
be used to load a single S-Record or multiple S-Records. The following shows an example of loading the small
S-Record file above using a SOFTLOADSREC command for each S-Record:
SOFTLOADSREC S0~P~G3IOM
SOFTLOADSREC S0~D~G3IOM
SOFTLOADSREC S0~V~AW3MM0000RN0000
SOFTLOADSREC S0~T~APP
SOFTLOADSREC S31D0000000006E0A6E10100000028000000480008000000001CE001001CE3
SOFTLOADSREC S31D0000001850000000D0344D00710040107A18512D4733494F4D000000F9
SOFTLOADSREC S31D00000030000000000000000041505000000000000000000000000000D1
SOFTLOADSREC S50000
SOFTLOADSREC S70000
The following shows an example of loading the small S-Record file using a SOFTLOADSREC command with
all of the S-Records in the file (there should only be one carriage return at the end and not between S-Records):
SOFTLOADSREC S0~P~G3IOMS0~D~G3IOMS0~V~AW3MM0000RN0000S0~T~APPS31D0000000006E0A6E10100000
028000000480008000000001CE001001CE3S31D0000001850000000D0344D00710040107A18512D4733494F4
D000000F9S31D00000030000000000000000041505000000000000000000000000000D1S50000S70000
The S-Record examples used in this chapter are extremely small files that could be manually loaded using the
command line. However, due to large number of S-Records in the firmware update file, it is not practical to
manually load the file from the command line. To improve speed and accuracy, a script is required to load all of
the S-Records in the firmware update file.
The basic structure of this script is:
1. Open the firmware update hex file.
2. Read the first line of the hex file. Ensure a carriage return is at the end of the line.
3. Use the contents of the line read to create a SOFTLOADSREC command.
4. Send the SOFTLOADSREC command to the G-III Reference Receiver through the Data port
(J02).
5. Verify that the receiver has responded with <OK.
6. Read the next line of the hex file. Ensure a carriage return is at the end of the line.
7. Use the contents of the line read to create a SOFTLOADSREC command.
WAAS G-III Reference Receiver User Manual Rev 1
Chapter 6
131
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