From: MagerValp (MagerValp_at_cling.gu.se)
Date: 2002-08-21 11:51:56
>>>>> "MM" == Marko Mäkelä <Marko.Makela@HUT.FI> writes:
AD> I have finally finished my hard drive controller for the commodore
AD> 8-bit computers.
AD> It enables commodore computers with an IEC serial port (VIC-20, C-64,
AD> C-128) to connect to standard ATA hard drives.
AD> You can find all schematics and source code on my web-page:
AD> http://www.stud.ntnu.no/~djupdal/cbm/iecata/
MM> Did everyone notice this? The board looks a bit big, with no
MM> surface-mounted components, and I think the ATmega103 would
MM> provide an almost single-chip solution, even with a built-in
MM> real-time clock.
Yes, it's a pretty interesting project, but as Asbjorn says he doesn't
expect anyone to actually build the thing. But if you could reduce the
component count and print a couple of PCBs... JiffyDOS compatibility
would also make it even more interesting.
On a similar note I've been thinking about how to connect an IDE drive
to the C64 using no active components, only cables and connectors. I
think I've figured it out, but I'm not sure if it'll actually work:
C64 IDE
User Port PB0..PB7 D0..D7
User Port PA2 /CS0
Joy 2 b0..b2 A0..A2
Joy 2 b3 /RD
Joy 2 b4 /WR
/IORDY is tied low, D0..D7, A0..A2, and /RD or /WR are set up, and
then you strobe /CS0 to read or write a register. This isn't quite
according to the IDE spec, but it seems like it might work. I think I
saw a spare IDE cable in the junk heap at work...
--
___ . . . . . + . . o
_|___|_ + . + . + . Per Olofsson, arkadspelare
o-o . . . o + MagerValp@cling.gu.se
- + + . http://www.cling.gu.se/~cl3polof/
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