[caption id="" align="alignleft" width="300" caption="TI Launchpad"]<a href="http://processors.wiki.ti.com/index.php/MSP430_LaunchPad_%28MSP-EXP430G2%29?DCMP=launchpad&HQS=Other+OT+launchpadwiki">
<img title="TI Launchpad" src="http://processors.wiki.ti.com/images/thumb/a/ad/LaunchPad_wireframe.PNG/300px-LaunchPad_wireframe.PNG" alt="TI Launchpad" width="300" height="351" /> [/caption]
The TI Launchpad is a small fun developers platform, perhaps most suited for beginners to microcontrollers. It retails for $4.30, comes with two simple MSP430 microcontrollers, a small PCB with two LEDs, pushbuttons, pin headers etc. It can be programmed via USB, either by the TI provided software, or, as I do, with msp-gcc and mspdebug in Linux. As I also program sensor nodes with Contiki, I wanted the syntax to be similar, eg "make upload". I wrote a small makefile so that the following syntax can be used:
# compile and link the files
make
# compile and upload to Launchpad
make upload
# remove all {object-, elf-, etc} files
make clean
# erase the MSP430 in Launchpad
make erase
# get size of the elf file
make size
And here’s the makefile itself. To adapt it to your project, just change the names stated under objects to your files, with an .o extension. In my file below, basic.c is the main file and vfd_driver.c is a driver for a VFD display.
OBJECTS = basic.o vfd_driver.o
CC = msp430-gcc
CFLAGS =-Os -Wall -g -mmcu=msp430x2012
all : $(OBJECTS)
$(CC) $(CFLAGS) $(OBJECTS) -o upload.elf
%.o : %.c
$(CC) $(CFLAGS) -c $<
clean:
rm -fr $(OBJECTS) upload.elf
erase:
mspdebug rf2500 \"erase\"
upload:
make
mspdebug rf2500 \"prog upload.elf\"
size:
msp430-size upload.elf