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Prototyping
3.2
Loading the MSP430 With the FIrmware
The MSP-TRF4903-DEMO comes with source code installed on the MSP430 to run the demo program.
The user can develop new application software that can be downloaded to the MSP430 MCU through the
JTAG connector. Since the Compiled C code size is greater than 4 kB, only unrestricted versions of the
IAR development environment (not the Kickstart version) must be used for downloading and modifying the
code.
The workspace file for compiling the demo source code is TRF4903_Demo_US.eww, developed with IAR
compiler version 3.20a.
The following steps show how to open the project file and program the MSP430.
Step 1. Insert the two AAA batteries and slide the on/off switch to ON.
Step 2. Start the Workbench (START->PROGRAMS->IAR SYSTEMS->IAR EMBEDDED
WORKBENCH
Step 3. Use FILE->OPEN WORKSPACE to open the workspace file at: <Installation root>\...\
TRF4903_Demo_US.eww
Step 4. Use PROJECT->BUILD ALL to compile and link the source code. You can view the
source code by double-clicking Common Sources, and then double-clicking on the
source files in the workspace window
Step 5. Ensure that the C-SPY Debugger is properly configured for the Parallel Port used.
(Choose PROJECT->OPTIONS->FET DEBUGGER and select ->LPT1 (default) or LPT2
or LPT3 for the Parralel Port Configuration).
Step 6. Use PROJECT->DEBUG to start C-SPY. C-SPY erases the device Flash and downloads
the application object file
Step 7. In C-SPY, use DEBUG->GO to start the application
Step 8. In C-SPY, use DEBUG->STOP DEBUGGING to exit C-SPY
Step 9. In Workbench, use FILE->EXIT to exit Workbench
8
TRF4903 With MSP430 Demonstration and Development Evaluation Kit
Keyed
Connector
Red Stripe
Figure 2. JTAG Connector
SWRU010A – October 2004 – Revised May 2005
www.ti.com
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