Bedienungsanleitung Texas Instruments eZ430-Chronos (Seite 104 von 113) (Englisch)

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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 reassembled 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 reassemble 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 3.6.4.

104

Frequently Asked Questions SLAU292D–November 2009–Revised March 2011

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