The Open On-Chip Debugger
Open source STM32 MCU programming toolset
A family of Eclipse CDT extensions and tools for GNU ARM development.
Superseded by http://www.ti.com/tool/msp430-gcc-opensource
C++ based debug interface to MSP430, MSP-FET430UIF needed
GUI for using 'bdisetup' and configure Abatron's BDI debuggers