Novatel WAAS G-III User Manual page 130

Chapter 6
6. After the contents of the firmware update file has been transferred to RAM, use the
SOFTLOADCOMMIT command to verify the integrity of the firmware and write the firmware to
non-volatile flash storage by executing the following command.
SOFTLOADCOMMIT
The receiver writes the new image to the empty firmware image block, leaving the currently active
and running image unchanged in the receiver flash storage. The process of verifying and storing
can take several minutes. The SOFTLOADCOMMIT command returns a response immediately and
then processes the firmware image. The SOFTLOADSTATUSB log will report an error if an error
occurred at or after the SOFTLOADCOMMIT stage (e.g. problem with the application image).
7. Wait for the Commit operation to complete. When the SOFTLOADSTATUSB reports
WROTE_FLASH, the SOFTLOADCOMMIT has completed.
8. Reset the G-III Reference Receiver to start using the new firmware by executing the following
command.
RESET
The receiver will check the integrity of the image after SOFTLOADCOMMIT. If there is a CRC
checksum failure (i.e. SOFTLOADSTATUSB reports BAD_IMAGE_CRC), the G-III Reference
Receiver will not switch to the new firmware, but will continue to use the old firmware. Repeat the
upgrade procedure.
9. Only one firmware image can be resident on the system when the G-III Reference Receiver is in
Operational mode. Enter the following commands to erase the old firmware before proceeding to
the Operational state.
CHANGESTATE MAINTENANCE
LOG SOFTLOADSTATUSB ONNEW
SOFTLOADFINALIZE
The process of erasing the old firmware can take several minutes. The SOFTLOADFINALIZE
command returns a response immediately and then erases the flash.
10. Wait for the Erase operation to complete. When the SOFTLOADSTATUSB reports COMPLETE,
the SOFTLOADFINALIZE has completed. Otherwise, it will report BAD_FLASH_ERASE and
the procedure should be attempted again.
11. Reset the G-III Reference Receiver to exit from the Maintenance state and restart the system with
only a single firmware image by executing the following command.
RESET
12. Capture a VERSIONB log to verify the firmware version has changed:
LOG VERSIONB
130 WAAS G-III Reference Receiver User Manual Rev 1
Firmware Updates