It appears I got ahead of myself, so I am taking a step
back and trying to understand some simpler concepts before I go off into EDIF
& Verilog never-never land. This morning, I created a simple {lay} facet
using the inverter from the MOSIS library in an attempt to duplicate figure
11-11 in Mr. Rubin's book and see if I could write a spice deck. After a shile I
actually am able to find that I can put an inverter on the drawing, change
technologies to SchematicAnalog and put a few Spice parts such as a DC pulse,
load resistor and DC power supply on the drawing. The trick to hooking them up
seems to end the wire creation on the Spice part where the terminals on the
pulse generator and DC supply are not as obvious as on a resistor.
I can then write a simulator spice deck and see that I
have connected everything with a pulse generator to an inverter, a resistor load
on the inverter output and a DC voltage source to VDD on the inverter. That is
really good.
I was able to change the resistor value by double-clicking
on it. I would appreciate some guidance in changing the value of the pulse
generator or the DC voltage source as double-clicking doesnt do it and although
I can see its value of 0V with info->Attributes->Define, I cannot change
it yet. I also would like to name my nets. Electric gives me default net
names like net1, net2, net3, etc, but normally, I like to name the nets in a
design. I suspect that there is merely some simple command that I have not
figured out yet that lets me name the nets in a design.
Steve, everyday I work with Electric, I gain a bit more
appreciation for it. Unfortunately, I am paying my dues right now learing to use
it. The good news is that I can make progress. I have allready tried and given
up as counter--intuitive LASI & Magic. At least I can make progress on a
more or less regular basis with Electric. I guess my mind just works in a really
bizarre fashion, as I always seem to struggle at this point in learing how to
use a new software package.
|