Data Logger PC Software
3.5.2 Wireless Update
This mode allows updating the firmware of the eZ430-Chronos wrist module wirelessly, without
disassembling it.
Update procedure:
1. Select CC430 flash image (.txt file) by clicking Browse.... Example images for the demo software and
the data logger application are located for Windows in
C:\Program Files\Texas Instruments\eZ430-
Chronos\Recovery\Chronos Watch\Applications
and for Linux in
/home/<user name>/Texas
Instruments/eZ430-Chronos/Recovery/Chronos Watch/Applications
.
NOTE:
Ensure selecting the correct version of the flash images. If the wrong frequency is selected,
no wireless communication is possible anymore. In that case, the wrist module must be
updated using the eZ430 debug interface.
Only transfer flash images to the Chronos module, which allow invoking the update software
on the Chronos module.
The file to be downloaded to the Chronos module must be in TI-TXT format to work with this
update procedure. This new firmware must reside within the main memory flash (0x8000 to
0xFFFF), otherwise the update procedure fails due to boundary checks on the Chronos
module side.
2. Activate the update mechanism on the PC by clicking Update eZ430-Chronos Watch. The Control
Center status line displays "Access point started. Now start watch in rFbSL mode" when the PC is
ready.
3. Select "rFbSL" on the eZ430-Chronos wrist module by pushing the # button
4. Push once DOWN button to switch to confirmation menu
5. Push DOWN again to initiate update
6. After a short moment, the update is started
At the beginning of the update the LCD shows "rAM" for a few seconds. During this time, the actual
update software is downloaded from the PC to the RAM of the CC430 on the Chronos module. This
program contains all memory write and LCD routines. After this transfer is finished, the code is
executed from RAM, and the download of the firmware file is started. The LCD shows the progress in
percent on the upper LCD line. After the transfer is complete, a reset starts the software on the
Chronos module. See
for details.
NOTE:
If the update fails, it can be activated again by pushing the DOWN button again on the
eZ430-Chronos wrist module, given that the wireless update is active in the eZ430-Chronos
Control Center.
39
SLAU292F – November 2009 – Revised October 2013
eZ430-Chronos Software
Copyright © 2009–2013, Texas Instruments Incorporated