Re: Timer by Pspice

Jim Thompson <thegreatone@xxxxxxxxxxx> wrote:
: On Mon, 22 Aug 2005 15:38:32 -0000, Stuart Brorson <sdb@xxxxxxxxxx>
: wrote:

:>Joey-zyzmax <zyzmax001@xxxxxxx> wrote:
:>: Hello all, I have to simulate a digital circuit, in the circuit there
:>: is a timer triggled by a leading edge pluse, it is to say that when the
:>: leading edge comes, then the timer start working. I don't know how to
:>: realize it bu PSpice. can someone help me, thank you very much.
:>
:>PSpice is exactly the wrong tool to use for simulation of digital
:>circuits. [1] Try using something like Tkgate instead:
:>
:>http://www.tkgate.org/
:>
:>Stuart
:>
:>[1] Yes I know the quibblers and nit-pickers on this froup will say
:>that you can do some level of digital stuff in PSpice. The point here
:>is that Hr. Zyzmax is evidently a clueless newbie, using SPICE to do
:>digital stuff is a non-optimal way to work, and so Hr. Zyzmax should
:>be helped to find a more appropriate tool.

: Spricht so den Dorfidioten.

Weil Sie auf meinen Post reagieret haben, so muss ich annehme, dass Sie
under den Dorfidioten stehen. :-) [1]

: PSpice A/D does quite nicely as a digital simulation tool and includes
: a nice selection of 'HC CMOS parts (as well as most other commercially
: available stuff) to select from.

: And PSpice can also do MIXED analog and digital circuits.

Wonderful. Does Hr. Zyzmax need to do mixed signal analysis? Or is he
analyzing a clocked counter? Does PSpice handle synchronous logic
analysis, or is it only useful for combinational logic analysis? And
if you can do synchronous logic analysis, is there a graphical
primitive (i.e. symbol) for a clock oscillator?

And does Hr. Zyzmax need a >$1000 "upgrade" to get any of the required
features for logic work?

Stuart

[1] Kaum zu glauben fuer ein Messingrattetraeger, nicht?

.