Subject: Re: AXPpci33 Serial Console Problems
To: Curt Sampson <cjs@portal.ca>
From: John Birrell <jb@cimlogic.com.au>
List: port-alpha
Date: 04/17/1997 07:38:21
Curt Sampson wrote:
> 
> Well, I've found my serial problem. It appears that DEC is using
> some extremely creative numbering for the pins on the IDC connector.
> It appears that the one with the little arrow pointing to it is
> not pin one, as I naively expected. Nor are the pins in sequence,
> Here's what I've figured out so far:
> 
> 	  - x x x 10
> 	> 6 2 - x x
> 
> The two with the minus signs are giving me negative voltage, so I
> expect that those are pins 4 and 7, but I don't know which is which
> yet.
> 
> If anyone has a chart that converts between DEC's interesting
> numbering scheme and the real world (e.g., something that makes
> the chart in the OEM manual for this board match reality) I'd
> appreciate it.

I just use a standard cable that comes with any ISA serial board
and the serial ports work fine (with limited use admittedly).

> 
> cjs
> 
> Curt Sampson    cjs@portal.ca	   Info at http://www.portal.ca/
> Internet Portal Services, Inc.	   Through infinite myst, software reverberates
> Vancouver, BC  (604) 257-9400	   In code possess'd of invisible folly.
> 
> 


-- 
John Birrell - jb@cimlogic.com.au; jb@netbsd.org; jb@freebsd.org
CIMlogic Pty Ltd, 119 Cecil Street, South Melbourne Vic 3205, Australia
Tel +61 3 9690 6900 Fax +61 3 9690 6650 Mob +61 418 353 137