Tiva Template
Toolchain
Dependencies:
- flex
- bison
- libgmp3-dev
- libmpfr-dev
- libncurses5-dev
- libmpc-dev
- autoconf
- texinfo
- libftdi-dev
- python-yaml
- zlib1g-dev
To get all dependencies on Ubuntu:
apt-get install flex bison libgmp3-dev libmpfr-dev libncurses5-dev \
libmpc-dev autoconf texinfo build-essential libftdi-dev python-yaml \
zlib1g-dev
You will need an ARM bare-metal toolchain to build code for Tiva targets.
You can get a toolchain from the
gcc-arm-embedded project that is
pre-built for your platform. Extract the package and add the bin folder to
your PATH.
The TivaWare package contains all of the header files and drivers for
Tiva parts. Grab the file SW-TM4C-1.1.exe from
here and unzip it into a directory
then run make to build TivaWare.
mkdir tivaware
cd tivaware
unzip SW-TM4C-1.1.exe
make
Note: for the Tiva Connected Launchpad get SW-EK-TM4C1294XL-2.1.0.12573.exe.
Writing and Building Firmware
-
Clone the tiva-template repository (or fork it and clone your own repository).
git clone git@github.com:uctools/tiva-template
-
Modify the Makefile:
- Set TARGET to the desired name of the output file (eg: TARGET = main)
- Set SOURCES to a list of your sources (eg: SOURCES = main.c startup_gcc.c)
- Set TIVAWARE_PATH to the full path to where you extracted and built TivaWare (eg: TIVAWARE_PATH = /home/eric/code/tivaware)
-
Run
make -
The output files will be created in the 'build' folder
Flashing
The easiest way to flash your device is using lm4flash. First, grab lm4tools from Git.
git clone git://github.com/utzig/lm4tools.git
Then build lm4flash and run it:
cd lm4tools/lm4flash
make
lm4flash /path/to/executable.bin
Debugging with gdb
These chips are supported in openocd HEAD (credit to Karl Palsson). The openocd website has instructions on how to install it.
With openocd installed, run gdb with this command:
arm-none-eabi-gdb -ex 'target extended-remote | openocd -f board/ek-tm4c1294xl.cfg -c "gdb_port pipe; log_output openocd.log"; monitor reset; monitor halt'
lmicdi can also support gdb but it appears openocd has better support for breakpoints and source-level debugging right now. You may want to check back later for updates on the situation.
Credits
Thanks to Recursive Labs for their guide which this template is based on.
Thanks to Rob Stoddard for digging into the issue on soft FP versus hardware FP.