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eZ430-RF2500-SEH Solar Energy Harvesting Development Tool User's Guide Literature Number: SLAU273C January 2009 – Revised May 2010 This datasheet has been downloaded from http://www.digchip.com at this page...
Solar Energy Harvester Module (SEH-01) Circuit Schematic ..............Pulse Discharge Current for a Wireless End Device ..................eZ430-RF2500-SEH Sensor Monitor ......................MSP430 Firmware ................ 4.1.1 Downloading Firmware to the MSP430 ..................PC Sensor Monitor Application ....................4.2.1 Energy Awareness ..................4.2.2 Remaining Transmissions ......................
Read This First If You Need Assistance If you have any feedback or questions, support for the MSP430 device and the eZ430-RF2500 is provided by the Texas Instruments Product Information Center (PIC) and the TI E2E Forum (https://community.ti.com/forums/12.aspx). Contact information for the PIC can be found on the TI web site at support.ti.com.
The eZ430-RF2500 is used to run the energy harvesting application. It is a complete USB-based MSP430 wireless development tool and provides all the hardware and software necessary to use the MSP430F2274 microcontroller and CC2500 2.4-GHz wireless transceiver.
One AAA battery pack with expansion board (batteries included) • One SEH-01-DK Solar Energy Harvesting Board • One MSP430 Development Tool CD containing documentation and development software – eZ430-RF2500-SEH Demo and Source Code, SLAC219 – eZ430-RF2500-SEH Development Tool User's Guide, SLAU273 –...
1. Insert the eZ430-RF2500 into a USB port on the PC. This acts as the Access Point. If prompted for the driver for the MSP430 Application UART, allow Windows to 'Install the software automatically'. This is only possible if the Sensor Monitor has already been installed.
Install Code Composer Essentials www.ti.com Install Code Composer Essentials To edit and download code to the MSP430, Code Composer Essentials v3.1 or higher must be installed. 1. Download Code Composer Essentials Core Edition from www.ti.com/cce or from the included CD.
The Power Management block has a control line, CHARGE, which indicates to the MSP430 that the solar energy harvester is actively charging the EnerChip. The control line input, BATOFF, is available for the MSP430 to isolate itself from the EnerChip to conserve battery life in prolonged low-light conditions.
MSP430 that takes into consideration the constraints of running in an energy harvesting environment as well as a PC application that can display all connected wireless nodes and the data that they are reporting. Both the MSP430 firmware and the PC application (both binary and full source) are included in SLAC219.
4.2.3.1 Action Toolbar: Play, Pause, Stop By default, the Sensor Monitor scans all available COM ports until it finds an MSP430 Application UART and begins receiving data. The Play, Pause, and Stop controls are available to control the connection with the COM port.
4.2.3.4 COM Port Selection By default, the application selects and opens the first available MSP430 Application UART and refreshes the drop down whenever a new COM port is available. This means it is rarely necessary to use the COM port selection list unless multiple MSP430 Applications UARTs are available on the PC.
The startup and network linking process is a very demanding from a power-consumption perspective, because both the MSP430 and the CC2500 turn on in a full active mode at startup, which is a drain on power when working with such a limited power budget. Also, linking to an RF network requires scanning the area and exchanging packets between the ED and AP with the potential for re-transmissions.
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