[1215] in linux-scsi channel archive
Re: Adaptec 1510 query
daemon@ATHENA.MIT.EDU (Alan Brown)
Fri Jan 3 13:44:13 1997
To: submit-linux-dev-scsi@ratatosk.yggdrasil.com
From: alan@news.manawatu.gen.nz (Alan Brown)
Date: 4 Jan 1997 07:11:50 +1300
In article <Pine.SOL.3.95.961228170326.19849C-100000@hammer.thor.cam.ac.uk>,
Philip Blundell <pjb27@cam.ac.uk> wrote:
>The 1510 doesn't have a BIOS, and so it can't be autoprobed. You have to
>say "aha152x=.." on the command line. This is all documented in either
>the driver or the SCSI howto, I think.
Yes it is.
The jumpers on the board aren't and there's no info on Adaptec's site.
I finally worked them out by gritting my teeth and tracing tracks.
There are 4 jumpers on the PCB. With the board's component side in front
of you and the edge connector facing towards you (ie, rear scsi connector
to the right), the jumpers run from left to right just over the ISA
portion of the connector.
They are in order: irq12, irq11, irq 10, irq9, ALternate address (140h)
The card is hard wired to be device ID 7.
The reason it isn't immediately obvious that the IRQ jumpers serve that
function is that they're labelled I2, I1, I0, I9. Additionally the board
is multilayer and some tracks from the jumpers are buried.
With AL on, the card address is 0x140, with it off it's 0x340.
IRQ should be selected as needed. Default is irq11.
The jumper info should probably be in the Scsi FAQ seeing as there's no
information on Adaptec's site for these cards. An AVA1510/20/22 is quite a
different beastie layout-wise than an AHA1510.
Part of the reason I got confused with the card is that I was told
that it was at default setting when it wasn't. This meant the autoprobe
wasn't finding the card as it only looks at irq 11 and 12 - the IRQ had
been shifted to 9.
Additionally, if the card address is set to 0x140 and the card is probed
for via lilo switch (aha15x0=0x340), the probe will decide there are 2
cards installed and get horribly confused. Guess what else had been
altered from default?
I hope this gets archived somewhere and saves someone a few hours of
headscratching. Thanks for all the pointers in the right direction. :-)
The next thing to do is find an easy to drive tape backup program
suitable for use with a WangDAT and capable of backing up machines
over a network. :-)
AB
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