Re: [myhdl-list] Simulation control

[Christopher F. <chr...@gm...>]

On 4/5/15 3:06 PM, Juan Pablo Caram wrote:
> I apologize for the confusion. I'm hoping to do do this with code, not a
> debugger. I'm trying to create a mixed signal simulator exchanging data
> between ngspice and myhdl.

This might be of interest:
http://old.myhdl.org/doku.php/projects:mixedmodesimulation
http://old.myhdl.org/doku.php/projects:interactive_simulation_using_ipython

>
> I would like to be able to simulate until signal X toggles or changes,
> get the time, run spice until this time is reached, update signals in
> myhdl and spice, resume myhdl simulation, etc.

Why can't you do this with the existing Python debuggers?

>
> Sometimes the clock comes from spice, I detect the change in output from
> a comparator, stop the simulation, and must toggle the corresponding
> signal in the digital side and resume the digital.
>
> I couldn't find any fine controls for the simulation in MyHDL. SimPy,
> that looks quite similar in terms of using generators, seem to have
> "simulate until" kind of controls. I wonder if this is already possible
> or if someone had tried to implement such functionality.

This control does not exist in the MyHDL simulator.
Currently, you can only instruct the simulator to
run N simulation steps: `Simulation(test()).run(1000)`

Regards,
Chris