Allegro Design Entry CIS - floating node problem
时间：03-30
整理：3721RD
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Hello,
I am currently using Allegro Design Entry CIS, and I'm rather new to it.
I built a double pulse test circuit but I am having trouble simulating it. I created a new simulation profile and ran a transient analysis to 15us with a max step size of 10ns.
Upon simulating the circuit (and I'm not expecting correct results the first time), I get all of these floating nodes. My circuit is grounded as you can see in the schematic I attached here.
Any thoughts? Here are the floating node errors
Okay so I got it fixed, except for this error:
ERROR(ORPSIM-15141): Less than 2 connections at node N03994.
:/
I am currently using Allegro Design Entry CIS, and I'm rather new to it.
I built a double pulse test circuit but I am having trouble simulating it. I created a new simulation profile and ran a transient analysis to 15us with a max step size of 10ns.
Upon simulating the circuit (and I'm not expecting correct results the first time), I get all of these floating nodes. My circuit is grounded as you can see in the schematic I attached here.
Any thoughts? Here are the floating node errors
Okay so I got it fixed, except for this error:
ERROR(ORPSIM-15141): Less than 2 connections at node N03994.
:/
Likely you have these problems:
- wrong ground symbol, not connected to node "0"
- transistor Q1 is missing from the netlist, probably a symbol without SPICE template
Both problems have been discussed in various previous threads
Obviously PSpice with Orcad schematic entry isn't well suited for beginners. I never heard about similar problems with the old PSpice schematic editor or tools like LTSpice.