Here is a link to a number of suggestions I have compiled for hardening of firmware.
I'm pretty sure that a lot can be said about the list, so please post coding tips or links to pages with good information of software hardening.
iapetus.neab.net/.../hardening.html
"Don't forget page one too."
Silly me!
Can be found at:
www.ganssle.com/.../wom1.pdf