OMG! what a rookie mistake! Thanks a lot for your help Anderw. I didn't know that option (solver) exists at all.
So when i choose the ultrasim in solver, the conservative/moderate/liberal option will be ignored? (accuracy options during enabling the transient analysis)
also I get an error like this when I run the simulation:
No connection module found: Need an input port of discrete discipline logic, and an output port of continuous discipline electrical.
Do i need to insert a connection betwenn digital (verilog) module and analog part to convert logic levels to voltage level, right? where I can find this connection module?
Sorry if these are very basic questions. But this is the first time I am running mixed-mode simulation. I would appreciate if you can introduce a good tutorial or user guide for this.