[comp.sys.cbm] New commodore hard drive controller

From: Marko Mäkelä (Marko.Makela_at_HUT.FI)
Date: 2002-08-21 09:22:22

Did everyone notice this?  The board looks a bit big, with no
surface-mounted components, and I think the ATmega103 would provide an
almost single-chip solution, even with a built-in real-time clock.


attached mail follows:

I have finally finished my hard drive controller for the commodore
8-bit computers. 

It enables commodore computers with an IEC serial port (VIC-20, C-64,
C-128) to connect to standard ATA hard drives. 

There exists several hard drive controllers for commodore computers.
This is what is special with this one: 

- Uses the serial port. 
- It works just like a 1541 disk drive, so no driver software is
  required on the computer.
- Works on all computers with a serial port
- Supports subdirectories
- Only one large partition (supports up to 128 GB disks)
- Due to the slow serial interface, it is quite slow. But
  still significantly faster than the 1541. 
- It is free! (GNU software, public domain hardware schematics)

You can find all schematics and source code on my web-page:

I don't expect anybody to actually build this thing, but I hope the
schematics and source code will be of interest to other computer


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