I've got an MSP430G2553 logging temperature sensor values to an SD card, and I've run into a problem. It seems that after about half a day of running (or just randomly), it just stops running the code it was working on. It still reacts fine to interrupts, but I've got no idea why it stops flashing the LED and recording values. If anyone wants to see the code then I can post it, but I'm hoping there's something stupid I've missed here that I can fix quickly.
In terms of power supply failure, I doubt that's it. It's got a 2200u cap right across the power, and it's being powered from a 3.3v linear regulator, with a 6v lead acid.
It can't be shutting down because its interrupts work okay, but it just completely stops running code.