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It has been done: Apple II IDE/ATA interface !

 
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Joined: 19 Jan 2005
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PostPosted: Wed Feb 23, 2005 10:09 pm    Post subject: It has been done: Apple II IDE/ATA interface ! Reply with quote




Hardware Hardware Hardware Honored Apple II IDE/ATA interface ! Honored Hardware Hardware Hardware

Text by StÈphane Guillard

Quote:
The Apple II is one of the finest personal computers ever made, if not the finest.
I love it, and even if one of mine is something like 15 years old,
I still make hardware and software projects for it (I have a basic IIe,
an enhanced IIe, a IIc w/384k, a ROM1 IIgs and a ROM3 IIgs).

I felt it lacked a hard disk, and that it would be fun to make my own
hardware adapter and software, thus I designed an easy to build hardware interface.

At present time, I have :

    * Fully functional hardware adapter for 2 IDE peripherals (e.g. a HDD and a CD-Rom reader),
    PIO Mode 1, running in any Apple 2 slot (tested on my IIe and on my IIgs).

    * low level software enabling initialization of devices, reading and writing sectors from the harddrive,
    analysis of Master Boot Record (find partition table), and Boot Partition Block (find a FAT16 FS in a partition).

    * Small and fast user commands on top of low level software,
    to save / load / execute something from memory to disk, navigate in directory tree and more

    * POSIX-like API (creat(), open(), read(), write() etc.)
    which eases creating standard unix-like utilities (like cp, rm, mv, cat, mkdir, etc.)

    * Some of the utilities above.


These routines are currently under development,
at various stages of completion.


The Apple II IDE/ATA interface !


The Apple II IDE/ATA interface build into StÈphane Guillard¥s Apple II


Have a look to StÈphane Guillard¥s page at http://s.guillard.free.fr/
to see a very detailed page about the interface, its theory, hardware and software.
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