[SI-LIST] Re: hspice erroring out

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From: si-list-bounce@xxxxxxxxxxxxx on behalf of Danish Jawed
Sent: Thu 1/29/2009 10:28 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] hspice erroring out




Hi,
  I am new to hspice. Can anyone tell what is wrong with the following
netlist. hspice is erroring out with the following error
 **error** measure statement failure
   rise,fall,or cross must be specified if
   at=val was not specified in trigger



 **error** measure statement failure
   rise,fall,or cross must be specified if
   at=val was not specified in target

===========================NETLIST BEGINS HERE=====================

.option acct list post
*** create pulse
.param vcc=5v          hiv=vcc       lowv=0

.param rho=.6mohm/sq cap=8.5e-7farad/meter**2 ind`ph/sq
*  len=.305 wid0u   leninch wid=6mil
+ transit_time ='.305*sqrt(cap*ind)'   impedance
='sqrt(ind/(cap*150u*150u))'

.ac dec 100 100k 1g

.probe s11(mag) s12(mag)
.probe s11(phase) s12(phase)

* If i move this line below the measure statement then hspice does not
errors out
.tran .01ns 12ns

.measure line_freq trig s12(phase)   val=-1 fall=1
+           targ s12(phase)   val=-1 fall=2

.net v(out1) v1

v1  in gnd  ac=1 pl lowv,0n hiv,.05n  hiv,3.5n lowv,3.55n lowv,7n  r=0n
**--> copper trace on fr-4 pc board
    x1  in   out1 gnd wlump10    len=.305 wid0u   $leninch wid=6mil
    r1_term  out1 gnd impedance ac=1g

**--> ideal transmission line element circuit
    t3 in gnd out3 gnd   z0=impedance td=transit_time
    r3_term  out3 gnd impedance ac=1g


.probe input=v(in) wlump10=v(out1) tline=v(out3)
*--< find voltage at 50% vcc and measure input to output delay
    .param vref='vcc/2'
    .measure wlump10 trig v(in)   val=vref rise=1
+             targ v(out1) val=vref rise=1

    .measure tline   trig v(in)   val=vref rise=1
+             targ v(out3) val=vref rise=1


.macro  wlump10 in out2 ref len=2.54e-2 wid0u
*--< the 10 lump macro is simply 2 5-lump macros each with half the length
     x10a   in   out1 gnd wlump5 len_l5='len/2' wid_l5=wid
     x10b   out1 out2 gnd wlump5 len_l5='len/2' wid_l5=wid
.ends

.macro  wlump5 in out ref len_l5=2.54e-2 wid_l50u
*--< the 5-lump macro defines a parameterized transmission line
*--< for fr-4 pc board material
.prot
.param rho=.6mohm/sq cap=8.5e-7farad/meter**2 ind`ph/sq
.param reseff='len_l5*rho/(wid_l5*5)'
+      capeff='len_l5*wid_l5*cap/5'
+      indeff='len_l5*ind/(wid_l5*5)'
r1  in  1   reseff
c1   1  ref capeff
l1   1  2   indeff
*
r2   2  3   reseff
c2   3  ref capeff
l2   3  4   indeff
*
r3   4  5   reseff
c3   5  ref capeff
l3   5  6   indeff
*
r4   6  7   reseff
c4   7  ref capeff
l4   7  8   indeff
*
r5   8  9   reseff
c5   9  ref capeff
l5   9 out  indeff
*
.unprot
.ends

.end



Thanks,
Danish.


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