SCSI to SCSI comms
10 messages in this thread
I'am planning to start developing a comms programa to comunicate to amigas
throug the SCSI port. First , How can u change the SCSI ID of the AMIGA?, is
there anybody that has tried this before? Any suggestions? Any discouragements?
Thank in advance
Make sure that your SCSI controllers dont have the same ID number set on them.
That usually entails changing jumpers somewhere to select the ID that you want.
I have ran an A2000 and an A3000 on a SCSI net along with a 1.2 Gig hard drive.
Things seemed to work ok. I only had it up for a little while .. I was playing
around with some ideas for multi-machine BBS software.
The standard for SCSI controllers is to be SCSI ID 0. I guess some can be
changed, but the process would be different for every board, and some won't be
changeable at all.
Michael:
What machine uses 0 as the standard for SCSI controllers? Not the Amiga,
on the Amiga, 7 is usually reserved for the controller. I have a single
SCSI bus between 2 machines, with the Amiga controller at id 7 and the
PC's SCSI card set to ID 5. It works ok here.
// -Mike Schiller
\X/ AMIGA! On AutoPilot in sunny Fort Lauderdale
I agree, I didn't think there was any kind of "standard". If anything, the Mac
uses 7, many Amiga adapters use 7, didn't the 2090 use 5 or 6? But since most
drives come configured with only one SCSI ID jumper, people tend to make them 0
or 1. (Gotta save that zillionith part of a penny on jumpers, I guess. 😉
Mike –
Since you are DOING it now, let me ask:
a) What does one need to do to connect?
I know you have the PC and Amiga SCSI board at different ID's — do
you simply run a DB-25 SCSI cable from one to the other? Address it as D:
from the PC (for example) and DH5: from the Amiga?
b) If you want to use it as a mechanism for TRANSFERRING files between
machines, rather than simply reading/loading a file on the PC into
CrossPC, about how fast can you tranfer?
. . . . JimDoc, on AutoPilot
Jim:
I'm using an Adaptec 1542 adapter in the PC, and it has a 50 pin connector
on the back of it, so what I do is I have a 25pin to 50 pin cable that
goes to my CDROM drive, and another 50 to 50 pin cable that goes from the
CDROM to the PC.
As far as using anything under MS-DOS, I don't know, I don't have it
running here. I use a freeware Unix clone OS called 386BSD on my PC. I
only have the 2 machines hooked up so I don't have to duplicate devices I
already have on the Amiga on the PC (like a tape drive, CDROM drive, etc),
and don't really try to transfer files this way. 386BSD does use the
Berkley Fast Filesystem, and somebody reciently wrote an AmigaDOS driver
that can read the BFFS, so theoretically I could format a SyQuest cart
under 386BSD and then read it on the Amiga, but I havn't tried that yet.
// -Mike Schiller
\X/ AMIGA! On AutoPilot in sunny Fort Lauderdale
Who did the BFFS driver, and is it uploaded here? I've love something like that
to read Unix CD-ROMs.
John:
I don't know who did it, I do believe it's in the libs here, and while I
have it I've never tried to use it.
// -Mike Schiller
\X/ AMIGA! On AutoPilot in sunny Fort Lauderdale
Really? guess I'm used to work stations. (checking) actually, I looked and
all the work stations use "7" as their scsi card device #. Oh well, I knew it
was one of those two…