On 2009-04-29 18:07:55 +0700, Alex Freed <alex_news@mirrow.com> said:
Jason wrote:Well, once I figure out a suitable solution for //c video that doesn't involve a CRT, maybe I'll dust off that old version of CodeVision AVR I have lying around and see what I can hack together to emulate a floppy drive, especially if the SVD project falls short. Always did like to play with microcontrollers -- probably because they remind me of 6502 programming.Check this out: http://jeanfrancoisdelnero.free.fr/floppy_drive_emulator/index.html#SDCARDFloppyemulator
I
think it may be usable almost without changes. All open source and actively developed.
Definitely worth looking at in more detail. Thanks for the reference.
People seem to prefer SD cards over CF cards for storage these days.Small, cheap and only a few wires to interface. What is there not to love?But if the "virtual disk" was external and connected to the disk interface port, wouldnt a USB key interface be more useful?Not sure why it would be more useful, but much harder to interface. You need a USB host controller.
Yes, it would probably require one more chip like the Vinculum VNC1L which goes for $10.90 from Digikey in single-piece quantities. If one used an ARM7 or similar, there are existing open source libraries that implement USB host controllers, but it's probably overkill for such a project. In the interests of simplicity, I have to agree with you that the SD card appears to be the best candidate.
-- Jason