05.08.2010 22:51, Joe Korty пишет:
I've been thinking it would be a nice little hardware project to make my own little bios switcher.
Regards, Joe
This solution is already present. It's named 'top hat', used mostly for reflashing soldered chips and it's easily maked for a hour just from 2 PLCC sockets - both are soldered pin-to-pin except pin 24. For bottom socket (that is placed on soldered chip and has removed key corner - to fit on reverse-placed chip) pin 24 is connected to pin 26 (GND), for top - pin 24 connected to pin 2 (nRST). Detailed Russian manual with discussion is placed here: http://www.rom.by/node/3430 IMHO it can be used for socketed flashes with some modifications (I can't imagine how to plug something over socketed flash - maybe just put PLCC32 package w/o crystal inside into socket, and solder to it adapter with switch for 2 PLCC32 chips) - but IMHIO it isn't actual, it's much easier just to swap flashes in socket or to solder ZIF socket.