Re: scsi controller availability

["mrbrad" <mrbrad@ll.net>]

just as a side note i thought that sequential systems (the ramfast card
makers) were gonn
a
release the schematics and eprom etc as freeware or some such for hobby
projects that is
who you should get a hold of..but i'd find someone on here who knows the
owner of sequential directly and phone/email him...would prob have to find
someone local to the guy to actually go over and get /xerox or otherwise dig
the stuff up..in that while intentions are good for the owner he prob does
not have the time

brad
sysop@lost-gonzo.com
www.lost-gonzo.com
mrbrad@ll.net

only apple // bbs's telnetable from the net via my www site..check them out
on my main bbs menu
fv 4.0xev and tpro 4.2f RPG game...i also have the usual ms dos doors files
and the rest




"sloopy malibu" <sloopym@home.com> wrote in message
39146F7A.86B932C5@home.com">news:39146F7A.86B932C5@home.com...
> 'ello,
>
>  hmm seems one for about $30 would make me a killing ;')
> i havnt decided on gpl'ing it or low cost retailing it yet...
> but i am thinking of three possible designs...
> 1)5380- scsi on a chip used in the 'pre-quadra' macs
>   (and the cms scsi card maybe others it was a popular chip....)
> 2)6522- it is a standard interface chip for the 65xx series...
>   (i built a scsi card for the atari 8bit a few years ago with one
>    and if i can find my notes on its design the likly choice)
> 3)ttl-logic- i found a web site that a guy has a design already
>    done but it has harsh limitation in its design (tho the
>    over all design is solid and looks good to keep it simple
>    he had to make compramises i am not willing to settle for...
> 4) clone an existing one.... this is ABSOLUTLY out of the question
>    this is the WORST kind of piracy (my opinions on piracy are odd
>    to say the least... this stems from the fact i started on a machine
>    that had its life shortened by several years because of it...
>    if your interested in my opinion- sloopy_m@my-deja.com...
>
> scsi-ii is the only way to go... as for speed this is a factor more
> of the software than the hardware.... and while my hardware hacking
> skills are above average, unfortunatly 'spaghetti boy sloop' isnt a name
> i got from my love of pasta ;') but my controller for the atari was
> decent to say the least (if you want details on it let me know...)
> it sold about 300 units i am told....
>
> as for my design criteria:
> 1) must work on file://e or IIgs
>    (it would actually work on any // with right software.....)
> 2) must support removables
>    (i will be using a zip for design and progy (backup will be easy ;')
> 3) use multiple partitions on a disk
>    (i am not sure how other scsi cards are setup but mine has two active
>     partitions selectable from the number of 32meg partitions on the
drive...)
> 4) must have a 20mhz 65816 accelerator built in....
>    (ok i am kidding on this one but hey we need our dreams somewhere! ;')
> 5) i am seriously considering adding a ramdrive, but my gs has 6megs of
ram
>    so unless this is real popular its not likly (this would be in addition
to
>    the gs ram disk
> 6) any ideas? 16 i/o lines for making a homeproject?
>    (that is how my scsi controller started on thee atari, i made this guy
a machine
>    with 64 i/o lines to run a train set and he asked about using 8 + a few
>    to hook up a 20meg scsi hd he had.... so i finished the design on it
>    and he made the software...
>
> let me know of any thoughts comments or info (i have very little on the
apple side
> so any would be helpful...)
>
> also whats so wrong with the cms scsi card? i have one in my machine
hooked to a
> zip and i havnt had any problems with it (it even handles when i eject the
disk
> while booted from it acceptably.....)
>
> sloopy.
> --
> sloopym@home.com-------------------------------sloopy_m@mydeja.com
> /|\ Atari, power without the price...Linux M68k, Thought Different!
> 800 - 1200XL //  foo! Hi Critter! Power Macintosh, Think Different!
>            \X/ amiga, multi-tasking done right.
>
> ---------------
> << Subject: scsi controller availability....
> From: sloopy malibu sloopym@home.com
> Date: Sat, May 6, 2000 3:36 AM
> Message-id: <3913D974.29D8F734@home.com>
>
> i noticed there is a shortage of scsi controllers for the apple file://'s
> is there a market for a new one to be designed?
> (i am a little bored and am considering a new project ;')
>
> sloopy.
>  >>
> All the scsi cards have been going for about a hundred bucks and up on
eBay so
> I would say yes there is a need for one.
>
> -------------------
>
> Nach4321 wrote:
> >
> > All the scsi cards have been going for about a hundred bucks and up on
eBay
> Which might not be a bad place to make your marketplace.... As well as a
> website of course.
>
> Roy
> -------------------
>                     A. B.
>
> ABSOLUTELY. If you can get your hands on the RAMFAST though, that'd be
> the one to clone...but if you're gonna do it, how about throwing in
> SCSI-2 compatability as well? Might be neat to hook up some newer h/w to
> the II...
>
> ---Tarage
> ---------------------
>
> I have an Apple Rev C SCSI card.  It looks like it would be easy to clone.
> There are two PALs and two large chips--an NCR 5380 and an RCA 6264.  The
> rest are all 74 series chips.  I know that the Rev C is considered to be
> almost the least capable of Apple II SCSI cards (only the CMS is beneath
> it), but I have been very happy with mine.
>
> --
>
> Paul R. Santa-Maria
> Ann Arbor, Michigan  USA
> paulrsm@ameritech.net
>