A colleague recommended I get an LPCXpresso demo board, which contains a JTAG interface connected to a small target system, but usable separately by physically snapping the target system off the end.
ARMs, I discover, have a facility called 'semihosting', where the target system can write to the host system's console and even read and write its file system--in this case, over the JTAG link.
Anyone here have any practical wisdom about the LPCXpresso and/or how useful semihosting is/
Thanks
Phil Hobbs