Regarding debugging: I don't know what additional hardware you need to debug MSP430, but there's Atmel's AVR "debugWire" which works ok with gdb. http://www.la

Regarding debugging: I don't know what additional hardware you need to debug MSP430, but there's Atmel's AVR "debugWire" which works ok with gdb. http://www.larsen-b.com/Article/315.html http://www.larsen-b.com/Article/315.html I used it with a AVR Dragon (a rather full-featured, but still relatively inexpensive AVR programmer). You can use it with Arduino boards, of course, when you solder in the 6-pin ISP socket. (e.g. the pin header on the right of https://www.arduino.cc/en/Main/ArduinoBoardUno https://www.arduino.cc/en/Main/ArduinoBoardUno ) http://www.atmel.com/tools/AVRDRAGON.aspx http://www.atmel.com/tools/AVRDRAGON.aspx