I'm fond of STM32 Discovery/Nucleo devboards. They have all the required debugger/programmer hardware on board, can be used as debuggers/programmers for standal

I'm fond of STM32 Discovery/Nucleo devboards. They have all the required debugger/programmer hardware on board, can be used as debuggers/programmers for standalone STM32 MCUs and are very well priced (you can get one for < 15EUR). I'd probably suggest NUCLEO-F401RE [1], as that series is newer and has out-of-the box mbed support (including it's mass-storage based firmware uploading). 1: http://www.st.com/web/catalog/tools/FM116/CL1620/SC959/SS1532/LN1847/PF260000 http://www.st.com/web/catalog/tools/FM116/CL1620/SC959/SS153...