Some people were having trouble using FET430UIF devices with MSPDebug. There is a new version (0.3) with some bug fixes which should help the problem, plus a new switch (-j) to force JTAG mode on the FET430UIF:
http://homepages.xnet.co.nz/~dlbeer/download.html
This version know attempts to identify the chip connected, so if anyone
sees warnings about "unknown device data" when they run the program,
I'd appreciate hearing about it.
Regards,
Daniel
