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| subject: | Re: annc: GS/OS AppleDisk5.25 Project |
On Feb 2, 4:29=A0pm, Alex Freed wrote: > I have one new idea on an Apple 2 peripheral, but it > involves a lot more software than hardware, so I want > to hear from the driver experts. > > A while ago I saw a very interesting project:http://avr.15.forumer.com/a/= fat-floppy-drive-interface-avr-asm_post10... > > The original project page is not there any more, but I have a copy. > Almost no hardware - just an ATMEGA8 uC, like the one I used in PD8 > and a few resistors. Everything else is the firmware inside the uC > and it reads and writes *high density* MFM floppies. > It should not be hard at all to add a bit of firmware to read/write > Apple compatible floppies, both 5.25" and 3.5" - it is very easy to > implement the Woz Machine on a 16 MHz AVR. > > It is also a fact that 3.5" disk controllers are relatively rare and > expensive. So a very simple board from the hardware perspective an AVR seems to be much simpler than: http://ultimateapple2.com/images/A2DiskController.jpg --- SBBSecho 2.12-Win32* Origin: Derby City Gateway (1:2320/0) SEEN-BY: 10/1 3 34/999 120/228 123/500 128/2 140/1 222/2 226/0 236/150 249/303 SEEN-BY: 250/306 261/20 38 100 1404 1406 1410 1418 266/1413 280/1027 320/119 SEEN-BY: 393/11 396/45 633/260 267 712/848 800/432 801/161 189 2222/700 SEEN-BY: 2320/100 105 200 2905/0 @PATH: 2320/0 100 261/38 633/260 267 |
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