From owner-freebsd-hardware  Sat Jul 27 11:01:51 1996
Return-Path: owner-hardware
Received: (from root@localhost)
          by freefall.freebsd.org (8.7.5/8.7.3) id LAA23195
          for hardware-outgoing; Sat, 27 Jul 1996 11:01:51 -0700 (PDT)
Received: from lariat.lariat.org ([129.72.251.2])
          by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id LAA23190
          for <hardware@freebsd.org>; Sat, 27 Jul 1996 11:01:50 -0700 (PDT)
Received: (from brett@localhost) by lariat.lariat.org (8.8.Alpha.4/8.8.Alpha.4) id MAA20534 for hardware@freebsd.org; Sat, 27 Jul 1996 12:02:06 -0600 (MDT)
Date: Sat, 27 Jul 1996 12:02:06 -0600 (MDT)
From: Brett Glass <brett@lariat.org>
Message-Id: <199607271802.MAA20534@lariat.lariat.org>
To: hardware@freebsd.org
Subject: DigiBoard driver: How to use with X/em?
Sender: owner-hardware@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk

I have here a brand-spanking-new DigiBoard PC/Xem intelligent serial
card, plus a cable and a box with 16 RS-232 connectors. However, I can't
seem to get them working with the FreeBSD DigiBoard driver. When I build
and boot from a kernel with the dgb driver installed, I get:

dgb0: PC/Xi 512K
dgb0 at 0x204-0x207 maddr 0xfc0000 msize 524288 on isa
dgb0: 2nd reset failed

and the ports don't work. It looks as if the card is recognized; however,
the second message suggests a hardware problem. The docs hint that there
might be a problem with the card in machines with more than 15 MB of RAM,
but when I cut the amount to 8 MB I got the same result.

How can I find out what's wrong?

--Brett