User's Manual
Table Of Contents
- Table of Contents
- Preface
- 1 eZ430-Chronos™ Overview
- 2 Getting Started
- 3 eZ430-Chronos Software
- 3.1 Overview
- 3.2 eZ430-Chronos Sports Watch Software
- 3.2.1 Detailed Feature Overview - Modes Using the Top LCD Line
- 3.2.1.1 Time Mode
- 3.2.1.2 Alarm Mode
- 3.2.1.3 Temperature Mode
- 3.2.1.4 Altimeter Mode
- 3.2.1.5 Heart Rate Mode - RF Additional accessory or eZ430-Chronos Control Center heart rate simulation required.
- 3.2.1.6 Speed Mode - RF Additional accessory or eZ430-Chronos Control Center heart rate simulation required.
- 3.2.1.7 Tilt Mode
- 3.2.2 Detailed Feature Overview - Modes Using the Bottom LCD Line
- 3.2.2.1 Date Mode
- 3.2.2.2 Stopwatch Mode
- 3.2.2.3 Battery Voltage Mode
- 3.2.2.4 Acceleration Mode - RF
- 3.2.2.5 PowerPoint Mode - RF
- 3.2.2.6 Sync Mode - RF
- 3.2.2.7 Calorie/Distance Mode - RF Additional accessory or eZ430-Chronos Control Center heart rate simulation required.
- 3.2.2.8 Wireless Update - RF
- 3.2.2.9 Chronos-to-Chronos (C2C) Mode
- 3.2.1 Detailed Feature Overview - Modes Using the Top LCD Line
- 3.3 eZ430-Chronos Control Center PC Software
- 3.4 eZ430-Chronos Watch Data Logger
- 3.5 Data Logger PC Software
- 3.6 eZ430-Chronos Software Projects
- 4 eZ430-Chronos Hardware
- 4.1 Programming/Reprogramming the eZ430-Chronos Watch: Disassembly and Assembly of the Housing
- 4.2 Functional Description of the eZ430-Chronos Watch
- 4.3 Functional Description of the eZ430-Chronos RF Access Point
- 4.4 Functional Description of the eZ430-Chronos Debug Interface
- 4.5 Schematics, Layout, BOM, and LCD
- 4.6 Access Point Schematics, Layout and BOM
- A Frequently Asked Questions
- B Detailed Hardware Driver Installation Guide
- Important Notices
eZ430-Chronos Software Projects
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3.6.2 Chronos-to-Chronos (C2C) Communication
This feature is a demonstration of what can be done using SimpliciTI (peer-to-peer) and two eZ430-
Chronos watches. This code can be also be adapted to be used for custom applications, where the
communication of two eZ430-Chronos watches is required. This mode allows one watch to wirelessly
control the other. After a successful connection, it is possible to change the menus and show the
accelerometer data from one watch in the other. The communication is bidirectional, so the control can be
done from both watches.
3.6.2.1 Detailed Description of C2C Communication
When the C2C mode starts, the system sets a new SimpliciTI address for the eZ430-Chronos watches
based on the time and accelerometer data. In SimpliciTI peer-to-peer mode, the connection occurs when
one device listens and other tries to link. In C2C mode, the devices must change between listen and link
modes to enable bidirectional control. It is important to do perform the switch randomly to ensure at least
one possible state for connection. To enable this process, , one timer interrupt is set to 100 ms. The
interrupt routine calls a function that changes the connection mode in a pseudo-random way, using the
accelerometer data.
After the connection is established, the first message synchronizes the timers from both watches. This
way it is possible to ensure low power to this system, making the watches sleep most of the time and
wake for a short period of time to send and receive data.
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eZ430-Chronos Software SLAU292D–November 2009–Revised March 2011
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