Welcome, Guest. Please login or register.

Author Topic: Some questions for the PCMCIA gurus  (Read 1787 times)

Description:

0 Members and 1 Guest are viewing this topic.

Offline Daedalus

  • Hero Member
  • *****
  • Join Date: Feb 2002
  • Posts: 893
    • Show all replies
    • http://www.robthenerd.com
Re: Some questions for the PCMCIA gurus
« on: March 24, 2009, 04:14:43 PM »
1. AmigaKit (Clicky) sell adaptors and software which are tested on Amigas. You could probably buy one for a lot cheaper on eBay but with no guarantee it'll work.

2. The PCMCIA is mapped to the same place on the A600 and the A1200 - 4MB into the fast RAM area. It doesn't automatically disable it, so you'll have problems trying to use more than 4MB of fast RAM in either machines with a PCMCIA card, as PCMCIA accesses will also get written to/read from the RAM, usually resulting in a crash.

3. Better accelerators get around this issue by mapping the memory into Z3 space, totally separate and safe from motherboard peripherals, but some basic ones don't, suffering the same issues as a RAM-only card.

4. Can't help you there I'm afraid. They were far rarer than the A1200 versions to begin with, I'd imagine they're almost impossible to find now.
Engineers do it with precision
--
http://www.robthenerd.com
 

Offline Daedalus

  • Hero Member
  • *****
  • Join Date: Feb 2002
  • Posts: 893
    • Show all replies
    • http://www.robthenerd.com
Re: Some questions for the PCMCIA gurus
« Reply #1 on: March 25, 2009, 08:33:55 AM »
Ooh, yeah, totally forgot the SRAM cards angle. These are PCMCIA cards that can be configured as fast RAM or a disk, though "fast RAM" is probably a bit of a misnomer. These obviously rule out the possibility to use any other PCMCIA cards, and you're limited to 4MB due to the addressing issue...
Engineers do it with precision
--
http://www.robthenerd.com