goodfet.cc/carrier works when there's an excisting C app to set the oscillator.
[goodfet] / firmware / apps /
drwxr-xr-x   ..
drwxr-xr-x - adc
drwxr-xr-x - avr
drwxr-xr-x - chipcon
drwxr-xr-x - glitch
drwxr-xr-x - i2c
drwxr-xr-x - jtag
drwxr-xr-x - monitor
drwxr-xr-x - pic
drwxr-xr-x - plugins
drwxr-xr-x - radios
drwxr-xr-x - smartcard
drwxr-xr-x - spi