* Carl-Daniel Hailfinger c-d.hailfinger.devel.2006@gmx.net [061025 14:02]:
Peter Stuge wrote:
On Tue, Oct 24, 2006 at 12:30:01PM -0700, Lu, Yinghai wrote:
Hope someone build one USB rom emualator for openmarket.
What is the minimum useful size? Would 2Mbit be enough? Can anyone suggest a reasonable target price?
I'd say 16 Mbit, but that's just my dream of everything-in-BIOS. But IMO 4 Mbit are really the minimum.
4 mbit really is the minimum. optimally the device would contain real flash and a microcontroller to update it in-circuit. Otherwise, it should really behave like a flash to the system, to make it usable for testing in-system flash update scenarios. (Hey, if there's no real flash in there, could the uC check the timing of the flash writes? ;-))
Target price... something below 50 Euros would be nice, but I don't know whether that can be achieved.
I am scared this might already be the price for the PLCC connector ;) the rest of the stuff could be pretty cheap though...
What if you create something like an USB programmable BIOS saviour instead? That should fit most requirements AFACIS.
I built something like that. drawback: it is slow and it requires a second machine.
Stefan