Telit Wireless Solutions GE863 - Manual (Page 106)

GE863-GPS Software User Guide
1vv0300724 Rev. 2 - 24/01/07
6 Service and firmware update
The Telit GE863 modules firmware can be updated through the same serial interface, which is used
normally for the AT commands. Since the software group is continuously working, in order to improve
the overall performances and introduce new features on the product, we suggest, in order to keep
updated the module’s firmware, to foreseen an external access to that interface with level converters
to RS232, which allows connecting a Windows-based PC, since it is normally not possible to
disconnect a GE863 module already soldered on the PCB of the application. It shall be possible to
start the update procedure at POWER OFF condition of the module and then switch it ON to continue.
During the application development or evaluation phase of the GE863 module, the RS232 interface
with the level converters or the USB port implemented on the Telit Evaluation Kit EVK2 can be used
to connect to a Windows-based PC on which the specific program for updating the Software (TFI) can
be run.
6.1 Step-by-Step upgrade procedure
The firmware update can be done with a specific software tool provided by Telit that runs on Windows
based PCs.
First the program will erase the content of flash memory, then the program will write on the flash
memory. To update the firmware of the module, we suggest the following procedure:
1. Collect information about the Hardware and implemented version of Software by the
command
- AT+CGMR<enter>, which returns the Software version information;
- AT+CGMM<enter>, which returns the Model Identification.
2. Switch OFF the module.
3. Run the file TFI_xxxx.exe. The following window should be displayed, Select the language
preferred by pressing the correspondent button.
4. The End User License Agreement will appear. Please, read it and accept the terms if you are
going to proceed.
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