SLAU292C Datasheet, PDF (94/102 Pages) Texas Instruments – eZ430-Chronos™ Development Tool

FAQs
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11. When I try to compile the source code with IAR KickStart, I get the following error:
Fatal Error[e89]: Too much object code produced (more than 0x4000 bytes) for this package
IAR KickStart currently has a 16KB code size limitation, and the project being compiled is larger than
16KB (0x4000 = 16384). Select the limited project version in the Workspace pull-down menu of the
IDE or use a full license of IAR. A 30-day evaluation version of IAR is available from
http://supp.iar.com/Download/SW/?item=EW430-EVAL.
12. When I try to compile the source code with Code Composer Studio v4.2, I get the following
error:
error: output file "eZ430_chronos_ISM_xxx.out exceeds code size limit
Code Composer Studio v4.2 Core Edition is limited to 16kB of code size and the project being
compiles is larger than 16KB. Select the limited project version in the Build Property Configuration pull-
down menu of the IDE or use the Platinum Edition of CCS. A 30-day evaluation version is available
from http://tiexpressdsp.com/index.php/Category:Code_Composer_Studio_v4
13. What is the range of the eZ430-Chronos kit?
In free field distances of up to 100 m (328 ft) have been measured. The range in other conditions,
especially within buildings, is hard to predict. It also depends on the protocol stack that is used.
14. A button fell of the eZ430-Chronos housing after I re-assembled it.
The buttons of the eZ430-Chronos watch housing are held by small C-clips. If the metal strips for the
buttons of the watch module bent and stuck at the watch housing buttons, they could have removed
the C-clip. Open the watch, locate the C-clip, and re-assemble the button.
15. How do I know whether I have a 915-MHz, 868-MHz, or 433-MHz kit?
Each eZ430-Chronos kit has a sticker on the box that includes the part number/frequency. The 915-
MHz/868-MHz watches are the same for both frequencies from a hardware perspective. The USB
access points are slightly different. The 868-MHz version has a 0-Ω resistor next to the antenna, and
the 915-MHz version does not. The 433-MHz watches and access points (with blue antenna, larger
than 915-MHz/868-MHz versions) are different from a hardware and software perspective and cannot
be used for other frequencies.
16. How do I restore the original software on my eZ430-Chronos watch?
The eZ430-Chronos software on the PC contains source code projects as well as Flash images, which
may be used to restore the original software state of the watch module. The .txt files are located in
C:\Program Files\Texas Instruments\eZ430-Chronos\Software Projects\Recovery. To program the .txt
flash images tool such as the Flash Pro Lite software from Elprotronic (www.elprotronic.com) can be
used. Ensure that the information memory block D is not erased, as it contains calibration data and the
ID of the watch module.
17. I have erased the watch module ID and calibration data. What happens now?
If information memory block D was erased, default values for the calibration data and ID are used. See
function read_calibration_values() in main.c for details.
18. I have more than one eZ430-Chronos watch connecting to one access point at the same time.
How can I prevent this?
Each eZ430-Chronos kit has a unique ID stored in information memory block D. If this block was
erased, the ID is equal on all watches. See FAQ item 17 about restoring the ID value.
19. Can I purchase the eZ430-Chronos kit or components of it in quantities? Can I get a
customized version?
Yes, our partner BM innovations (http://www.bm-innovations.com) provides all components of the
eZ430-Chronos kit in volume as well as a range of other products.
20. Which version of SimpliciTI is used with eZ430-Chronos?
The current software release used SimpliciTI 1.1.1.
21. The LCD of my eZ430-Chronos remains blank after a wireless update. What can I do?
In case of an error during the wireless update, the watch does not go back to the previous software
version as its Flash memory was deleted. To reduce current consumption, the watch is put in low-
power mode (LPM4) and the LCD is turned off. As the wireless update software is still active, the
update procedure can be started again despite the fact that the LCD remains blank. This can be done,
by selecting a flash image (.txt file) on the wireless update tabs of the eZ430-Chronos Control Center
PC software and clicking on "Update eZ430-Chronos Watch". To start the update on the watch, press
the "DOWN" button. The update is started. For details, see Section 3.6.3.
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Frequently Asked Questions
SLAU292C – November 2009 – Revised December 2010
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