While working my way through the balloon boot loader code doing a clean up I've come across some code for the SPOT arch that allows a power off from software by doing a GPIO_GPCR_WRITE(SPOT_POWER_LATCH); Does balloon have a similar facility? Do we want it available as a bootldr "halt" command if it does? Colin -- Colin Tuckley | colin@tuckley.org | PGP/GnuPG Key Id +44(0)1903 236872 | +44(0)7799 143369 | 0x1B3045CE A fanatic is one who can't change his mind and won't change the subject. - Winston Churchill