*BSD News Article 83840


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From: Gunther Schadow <gunther@gusw.dialup.fu-berlin.de>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: PLIP hardware problems
Date: Fri, 29 Nov 1996 17:56:56 +0100
Organization: Freie Universitaet Berlin
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Hello all PC-UNIX friends!

I have problems linking my notebook to my workstation via PLIP. I
soldered a Laplink cable and failed to get PLIP up and running with my
i586/133/PCI workstation (NEPUMUK), which has big SCSI drives, a DAT
tape and the modem line to the world. As a last resort I plugged the
notebook into my older i486DX/33/ISA box (PLOCUS) instead and PLIP works
just fine! The two PCs are linked by an ethernet and thus there is --
though cumbersome -- way to reach NEPUMUK from the notebook.

I know now that

- my cable is soldered right
- the parallel port needs no special hardware adjustment, since PLOCUS
has just an old ISA multi I/O card.

I am completely stuck bringing the parallel port on the PCI board to
receive data. Using some kernel debug settings, I get messages logged,
whenever the port receives data. On NEPUMUK these messages don't appear,
so I suspect that the port hardware is not correctly adjusted.

The PCI board is a Gigabit GA-588ATS. In the chipset setup I can
configure the parallel port mode to "SPP", "EPP", "ECP", and "ECP+EPP".
Yet, neither of the works. I've also fondled with the IRQ mappings
between PCI and ISA bus, but this seems not to make any difference.

Has anybody any idea, I need your help!

thank you,
regards
-- 
Gunther Schadow-----------Windsteiner Weg 54a, Berlin 14165, FR. Germany
Dept. of Anaesthesia, Benjamin Franklin Univerity Hospital, Berlin.
gusw@fub46.zedat.fu-berlin.de         http://userpage.fu-berlin.de/~gusw
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