[Qucs-help] How simulate AC/DC + Digital at same time?

[Luca G. <lu...@bl...>]

Hi qucs team,
I have two questions:   
- it is possible to simulate a digital part with an anologic at the same time? 
if not there is a workaround? (I have created a digital controller for a 
motor step by step and a power amplifier and I would like to simulate 
together)  

- I have created a circuit that create a smith trigger, but I have noticed at 
the beginning of the simulation the signal it is not stable/casual. Is it a 
normal effect or is due to a bug of the program?  
  
I attach the file with the smith trigger circuit.

Regards, 
	Luca Giambonini