I've got an experimention-Board (prototype-board) to put devices directly in a socket and build connections. I'll try to build a
flash-switch
myself. If i'll be successfull i'll put the wire-diagram on my page. :)
What sort of board, out of curiosity? Breadboard, wire-wrap or other? I'm using a wire-wrap for now, as breadboard types can get flaky at high speeds.
i don't know how this type is called. You've got hundreds of sockets and can put in whatever you like including wires and so on.
I'll start in on a post card, but I think I'll try to design it for upgradeability (ie. header for alphanumeric LCD for "intelligent POST" that can display errors in human-readable form. It can also be used after boot for system stats, etc.. like the Matrix Orbital ones).
Then maybe we can integrate.
Oh yeah, one thing to watch out for is motherboards that have PLCC package flash on them, it could get expensive to get a plug for them. Try to avoid them if you want to implement this dual-flash idea.
I've organized 2 of these boards (called PA2012). I used them to hot-flash my father's P2-Board. Hard to change the flashs if the Board is "on-Line". :)
Ciao, Stephan [SpaceNet-Systems]