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[Help-gnucap] Digital mode simulation
From: |
Jose Roberto B. de A. Monteiro |
Subject: |
[Help-gnucap] Digital mode simulation |
Date: |
Wed, 02 Aug 2006 18:30:53 -0300 |
User-agent: |
Thunderbird 1.5.0.2 (X11/20060516) |
Hello list,
I am trying to simulate the attached circuit (a simple flip-flop RS NOR)
using gnucap DIGITAL MODE. I wrote the following gnucap script,
according to gnucap manual:
* nor-test
.options MODE=DIGital
.options METHOD=EULERONLY
.options TNOM=27
* Spice netlister for gnetlist
V2 1 0 10V
V1 4 0 10V
U2 2 0 4 4 3 5 CMOS NOR
V3 5 0 10V
U1 3 0 4 4 1 2 CMOS NOR
.model CMOS LOGIC
.print dc V(V2) V(V3) VO(U1) VO(U2)
.dc V2 0 10 1 >nor-test.dat
.END
But I not got the following result:
# V(V2) V(V3) VO(U1) VO(U2)
0. 0. 10. ?? ??
1. 1. 10. ?? ??
2. 2. 10. ?? ??
3. 3. 10. ?? ??
4. 4. 10. ?? ??
5. 5. 10. ?? ??
6. 6. 10. ?? ??
7. 7. 10. ?? ??
8. 8. 10. ?? ??
9. 9. 10. ?? ??
10. 10. 10. ?? ??
Is there something that I am doing wrong? Maybe a missing LOGIC model
parameter, etc.
Regards,
Betoes
- [Help-gnucap] Digital mode simulation,
Jose Roberto B. de A. Monteiro <=