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authorIan Darwin <ian@cvs.openbsd.org>2007-06-11 18:58:17 +0000
committerIan Darwin <ian@cvs.openbsd.org>2007-06-11 18:58:17 +0000
commit06feed1a3f915afb22060efaefb5c737e17c6d8a (patch)
treee8dacc1e47041a119688ec2e5d147d54a991f4af /distrib/notes/armish/prep
parent7ea57804f87d9394941d6378d262a0cefcaf6008 (diff)
Ascii Art from jsg and a typo from jmc.
Diffstat (limited to 'distrib/notes/armish/prep')
-rw-r--r--distrib/notes/armish/prep11
1 files changed, 9 insertions, 2 deletions
diff --git a/distrib/notes/armish/prep b/distrib/notes/armish/prep
index 8e5a87e4d41..6c14881ad8a 100644
--- a/distrib/notes/armish/prep
+++ b/distrib/notes/armish/prep
@@ -1,4 +1,4 @@
-dnl $OpenBSD: prep,v 1.7 2007/06/11 16:34:45 ian Exp $
+dnl $OpenBSD: prep,v 1.8 2007/06/11 18:58:16 ian Exp $
To be able to boot the OpenBSD/MACHINE installation program, you will
need to acquire some limited knowledge of RedBoot, the low-level
process that controls the microprocessor after hardware initialization.
@@ -11,7 +11,7 @@ The Thecus N2100 needs a serial cable. There is either a 10-pin
header (with one pin removed) on the back of the disk circuit board,
or 9 holes for you to solder in your own header. The ribbon cable
that connects from there to your serial cable or the serial port on
-your computer is of the same type as used on older i386 PC's, but
+your computer is of the same type as used on older i386 PCs, but
be aware that there are two different types of 10-pin IDC to DB-9M
ribbon cable in use, which look identical (the differences are hidden
inside the DB-9 connector). The cable you need is wired using the
@@ -19,6 +19,13 @@ inside the DB-9 connector). The cable you need is wired using the
http://www.pccables.com/07120.htm
and not the more straightforward to solder "crossed" type:
http://www.pccables.com/07121.htm.
+If you wish to check a cable, or make your own, the pinouts are:
+DB9 IDC10
+=== =====
+1 2 3 4 5 1 3 5 7 9
+ 6 7 8 9 2 4 6 8 10
+
+Wire pin 1 to 1, 2 to 2 etc, with 10 not connected.
On the Thecus N2100, it is necessary to move jumper J3 to J4 to properly
route the serial port interrupt to allow serial to work under OpenBSD.