chronos ez430 watch programming

Hi harisha,

What code are you loading? Maybe it is code that does not setup or use the LCD display?

-Katie

I just wrote the printf statement and disabled the watch dog timer in the code.
Sir will you please let me know how to setup the LCD display. As i'm a newbie i'm finding it a bit difficult.

Hi harisha,

You can find example code for this board in the eZ43-chronos software package: http://www.ti.com/lit/zip/slac341 After installation look at C:\Program Files(x86)\Texas Instruments\eZ430-Chronos\Software Projects. These example source code use different features of the watch, including the LCD.

In the folder Chronos Watch\CCS\Sports Watch\driver for example, you can find display.c and display.h that include functions for using the LCD of the watch. To see how to use these functions, you may want to look at how they are called from other parts of the same software project as an example.

Regards,

Katie

The LCD of the Chronos is no text console. So if you just call printf, the output text will be put into the putchar() function and vanish there in the big NULL device.
To show something on the LCD, you'll have to configure the LCD controller. And then program the LCD segments to show something usable (this is no ASCII display with internal character generator. Only a bunch of individual LCD segments that light up or not if you tell the LCD controller to do so - coincidentally forming digits.).
The demo code Katie mentioned will show you how the demo application does it.
Also, the LCD controller is explained in detail in the CC430 family users guide.
The Chronos schematic shows you which segments of the display are connected to which segment lines of the MSP (and therefore controlled by which LCD controller memory bits)