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From: akcs.pyee@hpcvbbs.UUCP (Paul Yee)
Newsgroups: comp.sys.handhelds
Subject: Re: Spice on HP48SX
Message-ID: <2846d68f:3233.1comp.sys.handhelds;1@hpcvbbs.UUCP>
Date: 31 May 91 23:40:07 GMT
References: <1991May22.181753.6486@acd4.acd.com>
Lines: 12

Being a practising EE working in analog bipolar ASIC design and having
used SPICE-based simulators like Accusim on the HP/Apollo and PSpice on
the 386 PCs, I guess my only real concern with a SPICE program on the
48SX is: "How fast is it?"  Simplicity and limited function at
(relatively) high speed would be much more useful on the 48SX than all
the bells and whistles at the snail-like pace I have come to expect from
my 48SX (not that I don't like the 48, mind you).  Convergence in the
all-important dc bias point calculation at reasonable speed is a key, as
is an efficient transient simulation routine.  The very fact a pretty
complete version of Spice for the 48 can be written is remarkable, since
most Spice programs I've used are quite large (>200K on the PC).  I would
be interested in hearing about some of the implementation details of the
Spice program for the 48SX.