Menu
▾
▴
Re: [Ngspice-users] I have problem simulating JK flip-flop
|
From: Anil K. A. <ani...@ho...> - 2005-12-06 17:54:31
|
Hai Victor,
Thanks for reply, In new version it has having .endc and
.option. I think there is a problem in the netlist. If not with bsim4,
atleast if i get output spice3f5. That will be good for me. I dont know what
is the problem in the netlist. Can u check the netlist whether it is correct
r not.
The output which i am getting is given below
ngspice 1 -> print vr vS+1.5
vr = 0.000000e+00
vs+1.5 = 1.500000e+00
ngspice 2 -> print vq+3 vq1+4.5
vq+3 = 3.222387e+00
vq1+4.5 = 4.722387e+00
ngspice 3 ->
Thank you
Regards,
anil
>From: Victor Bourenkov <vi...@ty...>
>Reply-To: ngs...@li...
>To: ngs...@li...
>Subject: Re: [Ngspice-users] I have problem simulating JK flip-flop
>Date: Tue, 6 Dec 2005 12:11:52 +0000 (GMT)
>
>Hi Anil,
>
>Can you send any output that NGSPICE gives? I do not have the version of
>ngspice
>with BSIM4 implemented, so I can't test your circuit. From the perspective
>of
>spice3f5 user, I would say that you need to check if level=14 corresponds
>to the
>correct implemented model (should be BSIM4). Also I am not sure that
>".control /
>.endc" code is implemented in ngspice. Does anybody know?
>
>Cheers,
>Victor
>
> >
> >
> > Hai Victor,
> >
> > Thanks for response. sorry , i send a wrong netlist. I
>am
> > trying to find the output for SR flipflop.
> >
> > But i am not getting any output for the circuit. I have taken this
>netlist
> > from some website. Can u help me, what is the mistake in the netlist or
> > what's the problem getting an output. Does should i give any initial
> > conditions for it?
> >
> >
> > *netlist for the circuit
> > .control
> > destroy all
> > run
> > plot vr vS+1.5 vQ+3 vq1+4.5 VQ1+4.5 ylimit 0 6
> > .endc
> > .option scale=50n
> > .tran .01n 4n
> >
> > vS vS 0 DC 0 pulse(0 1 1n 0 0 1n 2n)
> > vR vR 0 DC 0 pulse(0 1 2n 0 0 2n 4n)
> >
> > x1 vS vQ vQ1 NAND
> > x2 vR vQ1 vQ NAND
> >
> > .subckt NAND ina inb out
> > vdd vdd 0 DC 1
> > M1 out ina vdd vdd PMOS L=1 W=20
> > M2 out inb vdd vdd PMOS L=1 W=20
> > M3 out ina n1 0 NMOS L=1 W=20
> > M4 n1 inb 0 0 NMOS L=1 W=10
> > .ends NAND
> > * 50nm BSIM4 models
> > *
> > * Don't forget the .options scale=50nm if using an Lmin of 1
> > * 1<Ldrawn<200 10<Wdrawn<10000 Vdd=1V
> > * Change to level=54 when using HSPICE
> >
> > .model nmos nmos level = 14
> >
> > +binunit = 1 paramchk= 1 mobmod = 0
> > +capmod = 2 igcmod = 1 igbmod = 1
>geomod
> > = 1
> > +diomod = 1 rdsmod = 0 rbodymod= 1
> > rgatemod= 1
> > +permod = 1 acnqsmod= 0 trnqsmod= 0
> >
> > +tnom = 27 toxe = 1.4e-009 toxp = 7e-010
>toxm
> > = 1.4e-009
> > +epsrox = 3.9 wint = 5e-009 lint = 1.2e-008
> > +ll = 0 wl = 0 lln = 1
>wln
> > = 1
> > +lw = 0 ww = 0 lwn = 1
>wwn
> > = 1
> > +lwl = 0 wwl = 0 xpart = 0
>toxref
> > = 1.4e-009
> >
> > +vth0 = 0.22 k1 = 0.35 k2 = 0.05 k3
> > = 0
> > +k3b = 0 w0 = 2.5e-006 dvt0 = 2.8
>dvt1
> > = 0.52
> > +dvt2 = -0.032 dvt0w = 0 dvt1w = 0
>dvt2w
> > = 0
> > +dsub = 2 minv = 0.05 voffl = 0
>dvtp0
> > = 1e-007
> > +dvtp1 = 0.05 lpe0 = 5.75e-008 lpeb = 2.3e-010 xj
> > = 2e-008
> > +ngate = 5e+020 ndep = 2.8e+018 nsd = 1e+020
>phin
> > = 0
> > +cdsc = 0.0002 cdscb = 0 cdscd = 0
>cit
> > = 0
> > +voff = -0.15 nfactor = 1.2 eta0 = 0.15
>etab
> > = 0
> > +vfb = -0.55 u0 = 0.032 ua = 1.6e-010 ub
> > = 1.1e-017
> > +uc = -3e-011 vsat = 1.1e+005 a0 = 2
>ags
> > = 1e-020
> > +a1 = 0 a2 = 1 b0 = -1e-020 b1
> > = 0
> > +keta = 0.04 dwg = 0 dwb = 0
>pclm
> > = 0.18
> > +pdiblc1 = 0.028 pdiblc2 = 0.022 pdiblcb = -0.005
>drout
> > = 0.45
> > +pvag = 1e-020 delta = 0.01 pscbe1 = 8.14e+008
>pscbe2
> > = 1e-007
> > +fprout = 0.2 pdits = 0.2 pditsd = 0.23
>pditsl
> > = 2.3e+006
> > +rsh = 3 rdsw = 150 rsw = 150
>rdw
> > = 150
> > +rdswmin = 0 rdwmin = 0 rswmin = 0
>prwg
> > = 0
> > +prwb = 6.8e-011 wr = 1 alpha0 = 0.074
>alpha1
> > = 0.005
> > +beta0 = 30 agidl = 0.0002 bgidl = 2.1e+009
>cgidl
> > = 0.0002
> > +egidl = 0.8
> >
> > +aigbacc = 0.012 bigbacc = 0.0028 cigbacc = 0.002
> > +nigbacc = 1 aigbinv = 0.014 bigbinv = 0.004
> > cigbinv = 0.004
> > +eigbinv = 1.1 nigbinv = 3 aigc = 0.017
>bigc
> > = 0.0028
> > +cigc = 0.002 aigsd = 0.017 bigsd = 0.0028
>cigsd
> > = 0.002
> > +nigc = 1 poxedge = 1 pigcd = 1
>ntox
> > = 1
> >
> > +xrcrg1 = 12 xrcrg2 = 5
> > +cgso = 6.238e-010 cgdo = 6.238e-010 cgbo = 2.56e-011
>cgdl
> > = 2.495e-10
> > +cgsl = 2.495e-10 ckappas = 0.02 ckappad = 0.02
>acde
> > = 1
> > +moin = 15 noff = 0.9 voffcv = 0.02
> >
> > +kt1 = -0.21 kt1l = 0.0 kt2 = -0.042
>ute
> > = -1.5
> > +ua1 = 1e-009 ub1 = -3.5e-019 uc1 = 0
>prt
> > = 0
> > +at = 53000
> >
> > +fnoimod = 1 tnoimod = 0
> >
> > +jss = 0.0001 jsws = 1e-011 jswgs = 1e-010
>njs
> > = 1
> > +ijthsfwd= 0.01 ijthsrev= 0.001 bvs = 10
>xjbvs
> > = 1
> > +jsd = 0.0001 jswd = 1e-011 jswgd = 1e-010
>njd
> > = 1
> > +ijthdfwd= 0.01 ijthdrev= 0.001 bvd = 10
>xjbvd
> > = 1
> > +pbs = 1 cjs = 0.0005 mjs = 0.5
>pbsws
> > = 1
> > +cjsws = 5e-010 mjsws = 0.33 pbswgs = 1
>cjswgs
> > = 3e-010
> > +mjswgs = 0.33 pbd = 1 cjd = 0.0005
>mjd
> > = 0.5
> > +pbswd = 1 cjswd = 5e-010 mjswd = 0.33
>pbswgd
> > = 1
> > +cjswgd = 5e-010 mjswgd = 0.33 tpb = 0.005
>tcj
> > = 0.001
> > +tpbsw = 0.005 tcjsw = 0.001 tpbswg = 0.005
>tcjswg
> > = 0.001
> > +xtis = 3 xtid = 3
> >
> > +dmcg = 0e-006 dmci = 0e-006 dmdg = 0e-006
>dmcgt
> > = 0e-007
> > +dwj = 0.0e-008 xgw = 0e-007 xgl = 0e-008
> >
> > +rshg = 0.4 gbmin = 1e-010 rbpb = 5
>rbpd
> > = 15
> > +rbps = 15 rbdb = 15 rbsb = 15
>ngcon
> > = 1
> >
> > .model pmos pmos level = 14
> >
> > +binunit = 1 paramchk= 1 mobmod = 0
> > +capmod = 2 igcmod = 1 igbmod = 1
>geomod
> > = 1
> > +diomod = 1 rdsmod = 0 rbodymod= 1
> > rgatemod= 1
> > +permod = 1 acnqsmod= 0 trnqsmod= 0
> >
> > +tnom = 27 toxe = 1.4e-009 toxp = 7e-010
>toxm
> > = 1.4e-009
> > +epsrox = 3.9 wint = 5e-009 lint = 1.2e-008
> > +ll = 0 wl = 0 lln = 1
>wln
> > = 1
> > +lw = 0 ww = 0 lwn = 1
>wwn
> > = 1
> > +lwl = 0 wwl = 0 xpart = 0
>toxref
> > = 1.4e-009
> >
> > +vth0 = -0.22 k1 = 0.39 k2 = 0.05 k3
> > = 0
> > +k3b = 0 w0 = 2.5e-006 dvt0 = 3.9
>dvt1
> > = 0.635
> > +dvt2 = -0.032 dvt0w = 0 dvt1w = 0
>dvt2w
> > = 0
> > +dsub = 0.7 minv = 0.05 voffl = 0
>dvtp0
> > = 0.5e-008
> > +dvtp1 = 0.05 lpe0 = 5.75e-008 lpeb = 2.3e-010 xj
> > = 2e-008
> > +ngate = 5e+020 ndep = 2.8e+018 nsd = 1e+020
>phin
> > = 0
> > +cdsc = 0.000258 cdscb = 0 cdscd = 6.1e-008
>cit
> > = 0
> > +voff = -0.15 nfactor = 2 eta0 = 0.15
>etab
> > = 0
> > +vfb = 0.55 u0 = 0.0095 ua = 1.6e-009 ub
> > = 8e-018
> > +uc = 4.6e-013 vsat = 90000 a0 = 1.2
>ags
> > = 1e-020
> > +a1 = 0 a2 = 1 b0 = -1e-020 b1
> > = 0
> > +keta = -0.047 dwg = 0 dwb = 0
>pclm
> > = 0.55
> > +pdiblc1 = 0.03 pdiblc2 = 0.0055 pdiblcb = 3.4e-008
>drout
> > = 0.56
> > +pvag = 1e-020 delta = 0.014 pscbe1 = 8.14e+008
>pscbe2
> > = 9.58e-007
> > +fprout = 0.2 pdits = 0.2 pditsd = 0.23
>pditsl
> > = 2.3e+006
> > +rsh = 3 rdsw = 250 rsw = 160
>rdw
> > = 160
> > +rdswmin = 0 rdwmin = 0 rswmin = 0
>prwg
> > = 3.22e-008
> > +prwb = 6.8e-011 wr = 1 alpha0 = 0.074
>alpha1
> > = 0.005
> > +beta0 = 30 agidl = 0.0002 bgidl = 2.1e+009
>cgidl
> > = 0.0002
> > +egidl = 0.8
> >
> > +aigbacc = 0.012 bigbacc = 0.0028 cigbacc = 0.002
> > +nigbacc = 1 aigbinv = 0.014 bigbinv = 0.004
> > cigbinv = 0.004
> > +eigbinv = 1.1 nigbinv = 3 aigc = 0.69
>bigc
> > = 0.0012
> > +cigc = 0.0008 aigsd = 0.0087 bigsd = 0.0012
>cigsd
> > = 0.0008
> > +nigc = 1 poxedge = 1 pigcd = 1
>ntox
> > = 1
> >
> > +xrcrg1 = 12 xrcrg2 = 5
> > +cgso = 7.43e-010 cgdo = 7.43e-010 cgbo = 2.56e-011
>cgdl
> > = 1e-014
> > +cgsl = 1e-014 ckappas = 0.5 ckappad = 0.5
>acde
> > = 1
> > +moin = 15 noff = 0.9 voffcv = 0.02
> >
> > +kt1 = -0.19 kt1l = 0 kt2 = -0.052
>ute
> > = -1.5
> > +ua1 = -1e-009 ub1 = 2e-018 uc1 = 0
>prt
> > = 0
> > +at = 33000
> >
> > +fnoimod = 1 tnoimod = 0
> >
> > +jss = 0.0001 jsws = 1e-011 jswgs = 1e-010
>njs
> > = 1
> > +ijthsfwd= 0.01 ijthsrev= 0.001 bvs = 10
>xjbvs
> > = 1
> > +jsd = 0.0001 jswd = 1e-011 jswgd = 1e-010
>njd
> > = 1
> > +ijthdfwd= 0.01 ijthdrev= 0.001 bvd = 10
>xjbvd
> > = 1
> > +pbs = 1 cjs = 0.0005 mjs = 0.5
>pbsws
> > = 1
> > +cjsws = 5e-010 mjsws = 0.33 pbswgs = 1
>cjswgs
> > = 3e-010
> > +mjswgs = 0.33 pbd = 1 cjd = 0.0005
>mjd
> > = 0.5
> > +pbswd = 1 cjswd = 5e-010 mjswd = 0.33
>pbswgd
> > = 1
> > +cjswgd = 5e-010 mjswgd = 0.33 tpb = 0.005
>tcj
> > = 0.001
> > +tpbsw = 0.005 tcjsw = 0.001 tpbswg = 0.005
>tcjswg
> > = 0.001
> > +xtis = 3 xtid = 3
> >
> > +dmcg = 5e-006 dmci = 5e-006 dmdg = 5e-006
>dmcgt
> > = 6e-007
> > +dwj = 4.5e-008 xgw = 3e-007 xgl = 4e-008
> >
> > +rshg = 0.4 gbmin = 1e-010 rbpb = 5
>rbpd
> > = 15
> > +rbps = 15 rbdb = 15 rbsb = 15
>ngcon
> > = 1
> > .end
> >
> > I hope you help me
> >
> > Thank you
> >
> > Regards,
> > anil
> >
> > >From: Victor Bourenkov <vi...@ty...>
> > >Reply-To: ngs...@li...
> > >To: ngs...@li...
> > >Subject: Re: [Ngspice-users] I have problem simulating JK flip-flop
> > >Date: Fri, 2 Dec 2005 10:33:58 +0000 (GMT)
> > >
> > >Hi Anil,
> > >
> > >am I missing something or your circuit consists only of voltage
>sources?
> > >
> > >Regards,
> > >Victor
> > >
> > > >
> > > >
> > > > hai everybody,
> > > >
> > > >
> > > > i tried to simulate the jk flip flop netlist.
>but
> > > > ngspice is able to plot the input values. It is unable to plot or
>print
> > >the
> > > > output. The netlist which iam running in the ngspice is below. Plz
>look
> > >at
> > > > once and tell wats the problem.
> > > >
> > > > * File name: JKTest.cir*
> > > > * Voltage and current sources
> > > > *
> > > > VBTN1 4 0 DC 0 PULSE(0 1.2 1.00N 0.1N 0.1N 1.00N 3.00N )
> > > > VBTN2 3 0 DC 0 PULSE(0 1.2 2.00N 0.1N 0.1N 2.00N 5.00N )
> > > > VBTN3 2 0 DC 0 PULSE(0 1.2 3.00N 0.1N 0.1N 3.00N 7.00N )
> > > > VBTN4 5 0 DC 0 PULSE(0 1.2 4.00N 0.1N 0.1N 4.00N 9.00N )
> > > > VBTN5 6 0 DC 0 PULSE(0 1.2 5.00N 0.1N 0.1N 5.00N 11.00N )
> > > > *
> > > > * Passive devices
> > > > *
> > > > *
> > > > * Active devices
> > > > *
> > > > *
> > > > *
> > > > * Mos models in 0.12µm
> > > > * Model 3 n-channel MOS
> > > > .MODEL TN NMOS
> > > > + LEVEL=3 TPG=+1
> > > > + GAMMA=0.2 THETA=0.5 KAPPA=0.1 ETA=0.002
> > > > + DELTA=0.0 UO=620 VMAX=100E3 VTO=0.35
> > > > + TOX=3e-9 XJ=0.1U LD=0.00U NSUB=1E+18
> > > > + NSS=0.2 NFS=7E11
> > > > + CJ=4.091E-4 MJ=0.307 PB=1.0
> > > > + CJSW=3.078E-10 MJSW=1.0E-2
> > > > + CGSO=3.93E-10 CGDO=3.93E-10
> > > > * Model 3 p-channel MOS
> > > > .MODEL TP PMOS
> > > > + LEVEL=3 TPG=-1
> > > > + GAMMA=0.2 THETA=0.5 KAPPA=0.01 ETA=0.001
> > > > + DELTA=0.0 UO=250 VMAX=500E3 VTO=-0.35
> > > > + TOX=3E-9 XJ=0.1U LD=0.0U
>NSUB=1E+18
> > > > + NSS=0.0 NFS=7E11
> > > > + CJ=6.852E-4 MJ=0.429 PB=1.0
> > > > + CJSW=5.217E-10 MJSW=0.351
> > > > + CGSO=7.29E-10 CGDO=7.29E-10
> > > > .TRAN 0.1ns 250ns
> > > > * Run simulation
> > > > *#run
> > > > *
> > > > * Dump time and volts in "JKTest.out"
> > > > *#set nobreak
> > > > .print V(4) V(3) V(2) V(5) V(6) V(8) V(7) > JKTest.out
> > > > .plot V(4) V(3) V(2) V(5) V(6) V(8) V(7)
> > > > .OPTIONS DELMIN=0 RELTOL=1E-6
> > > > .END
> > > >
> > > > I hope some one can help me
> > > >
> > > > Thank you,
> > > >
> > > >
> > > > Regards
> > > > anil
> > > >
> > >
> > >
> > >
> > >-------------------------------------------------------
> > >This SF.net email is sponsored by: Splunk Inc. Do you grep through log
> > >files
> > >for problems? Stop! Download the new AJAX search engine that makes
> > >searching your log files as easy as surfing the web. DOWNLOAD SPLUNK!
> > >http://ads.osdn.com/?ad_idv37&alloc_id865&op=click
> > >_______________________________________________
> > >Ngspice-users mailing list
> > >Ngs...@li...
> > >https://lists.sourceforge.net/lists/listinfo/ngspice-users
> >
> > _________________________________________________________________
> > Express yourself instantly with MSN Messenger! Download today - it's
>FREE!
> > http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/
> >
> >
> >
> > -------------------------------------------------------
> > This SF.net email is sponsored by: Splunk Inc. Do you grep through log
>files
> > for problems? Stop! Download the new AJAX search engine that makes
> > searching your log files as easy as surfing the web. DOWNLOAD SPLUNK!
> > http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click
> > _______________________________________________
> > Ngspice-users mailing list
> > Ngs...@li...
> > https://lists.sourceforge.net/lists/listinfo/ngspice-users
>
>
>
>-------------------------------------------------------
>This SF.net email is sponsored by: Splunk Inc. Do you grep through log
>files
>for problems? Stop! Download the new AJAX search engine that makes
>searching your log files as easy as surfing the web. DOWNLOAD SPLUNK!
>http://ads.osdn.com/?ad_idv37&alloc_id865&op=click
>_______________________________________________
>Ngspice-users mailing list
>Ngs...@li...
>https://lists.sourceforge.net/lists/listinfo/ngspice-users
_________________________________________________________________
Express yourself instantly with MSN Messenger! Download today - it's FREE!
http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/
|