So, when I went through undergrad, I got paired up with a guy that loved spice and decided if I wanted to do all the physical parts of the lab and measurements, he would do all the spice work. This was after I snoozed through a spice lecture or two and was bored to death having to work with him on trying to figure it out. So, I have a hole in my education when it comes to spice. Now I am having to use it again and wondering if anyone here can short circuit my manual reading.

This is a basic working program we got to check our hspice install, and it works for me

LCLINE    *  Test Program
*
*	R.J. Evans  5/11/00
*
*
*
*    Example 5.3.2   T-Line Segment Variations
*  
*
*
.SUBCKT XTMODEL 11 12
*   Case 1  RLC segments
L1	11	15	25NH
L2	15	12	25NH
C	15	0	10PF
*
.ENDS XTMODEL
*
*
*  Main program
*
*
XLINE0   100	180	XTMODEL
*
* Dummy Resistor for end of line open 
*
RT 	180	0	100meg
*
*  Excitation
*
*		     Vstart	Vend	delay	Tr	Tf	PW	Period
VIN	90  0  PULSE(	0	1	0PS	.2NS	.2NS	20NS	40NS)
*
*     Source Resistance
*
RS	90  100	70.7
*
*
.OPTIONS POST=2 PROBE TNOM=25 DELMAX=2PS RMIN=1E-12 BRIEF NOMOD
.TRAN	100PS	8NS
.WIDTH	OUT=80
.PLOT	TRAN	V(180)	V(100)	(0. ,1. )
.PRINT TRAN V(180) V(100)
.END LCLINE

6/10/2009 4:43:51 PM

Just took a little reading

http://www.5spice.com/Subckts.htm

Quote :

" Calling your Subcircuit In schematic based simulators like 5Spice, the schematic symbol automatically calls the subcircuit linked to the symbol. If you are using traditional Spice or calling a subcircuit from another subcircuit, write the call as follows: X Node1 Node2 Node3 ... SubName example: Xamp 5 4 2 ACamplifier The identifier must start with the letter X. SubName is the subcircuit's name. Node identifiers Node1, Node2, etc. are the node numbers/names in the calling circuit that connect to the subcircuit. The number of nodes on the call line must match the number listed in the .subckt line of SubName. Spice connects the nodes from the call line to the subcircuit in the order they are listed."

[Edited on June 10, 2009 at 5:21 PM. Reason : .]

6/10/2009 5:20:50 PM

duh, my little sister could have told you that node identifiers Node1, Node2, etc. are the node numbers/names in the calling circuit that connect to the subcircuit.

6/10/2009 5:34:16 PM

Yeah, it would have been infinitely more intuitive if the call from XLINE0 would have been

XLINE0 XTMODEL(100,180)

This would have immediately flagged as parameter passing in my head.

6/10/2009 5:45:53 PM