Path: utzoo!utgpu!water!watmath!clyde!att!rutgers!ucsd!ames!amdcad!sun!pitstop!sundc!seismo!uunet!mcvax!dkuug!freja!keld From: keld@freja.dk (Keld J|rn Simonsen) Newsgroups: comp.unix.microport Subject: AST 4-port under uport /386 v 3.0-2.2L Message-ID: <3985@freja.dk> Date: 19 Aug 88 13:31:10 GMT Organization: DIKU, U of Copenhagen, DK Lines: 26 I have problems installing an AST 4-port card on an NCR PC 916 machine running Microport UNIX/386 release 3.0 2.2L My UNIX/386 includes DOS/MERGE and an Everex tape driver. It is a 2-user license. My problem is, that I can get the UNIX to read characters from the card, at least from the first port, but I cannot write thru the board to the terminal. I have installed the card as specified, in enhanced mode and with IRQ 3 enabled. I have removed all other cards which could use IRQ 3, including my second serial/parallel port and my tape controller. I have used ttypatch as specified in the manual with the options: ttypatch -t01 -i3 -n4 -a416 -v447 -m0 The board is set to be the first address. I get the lines on the tty interface up, pin 4,5,6,8 and 20 is high, when I open the interface. I have tried both cu and opening it with cat -u. When I address tty04 the system panics. Can anybody help me please! Keld Simonsen, University of Copenhagen keld@diku.dk