[sci.electronics] Printed circuit board software

msd@enh.nist.gov (M. Scott Dewey) (08/20/90)

Hi folks,

Recently I've been called upon to use printed circuit board software
(PC/TANGO, a commercial product in this case).  I've learned that the
procedure using this software involves three steps: first a schematic is
entered from which a net list is generated; second, the board is outlined
and components placed on the board; and third, a router takes the board and
net list and attempts to route the connections.  Whatever connections
aren't made by the router are finally done by hand.  I suspect this
procedure is pretty familiar to those who commonly use such programs.

Unfortunately we're missing the software for the first part of the
procedure (the schematic capture program) which generates the simple ascii
file (or net list) listing groups of pins that are connected.  Of course
such a list can be entered manually using an editor.  In looking at what's
available on the simtel archives, the following programs caught my eye:

Directory PD1:<MSDOS.CAD>
 Filename   Type Length   Date    Description
==============================================
AUTOSK13.ARC  B  109245  890821  Drawing pgm optimized for schematics (DEMO)
EDRAW32.ARC   B  132096  881017  Electronics drawing CAD
PCB.ARC       B  127508  890325  Small PC board CAD pgm w/'C' src, 286 only
PCCD205.ARC   B  252194  891221  PC-Draft-CAD drawing/drafting CAD pgm, v2.05
PCROUTE2.ZIP  B  104499  900413  Computer aided design, printed circuit boards
PSPICE.ARC    B  590622  880507  Electronic circuit design aid, limited demo

I would be interested in hearing about any experiences people have had with
any of these programs.  I'm especially interested in finding out whether
any of these programs is particularly good at prompting for a schematic and
generating a net list.

Thanks!
-- 
NAME:   Dr. M. Scott Dewey             TELE: (301) 975-4843
DIVISION: Quantum Metrology            INTERNET: msd@enh.nist.gov
USMAIL: NIST (formerly NBS)            BITNET: msd@nbsenh
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