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Spectre and Simulink cosimulation - Problem on defining cosimulation inputs

Milad M

Dear All,

     I have done a successful Spectre/Simulink cosimulation. Then, I used Optimization Toolbox of MATLAB to find the best value of the cosimulation input in order to minimize the cosimulation output. I will explain the MATLAB codes if someone is interested.

     Now, I want to use this method to optimize the parameters of a sample circuit. I'd like to define cosimulation inputs some different things such as the value of a resistor or a capacitor or even the pulse width of a pulse voltage source in the circuit. But, looking at the tutorials, it is only possible to define cosimulation inputs the instance sources such as Vin:wave.

    How can I define cosimulation inputs something different? 

Sincerely Yours,

Milad

Parents

  • Milad,

    The simulink flow is primarily intended for simulating a system simulation with a mixed-signal implementation. It's not been designed with optimization by Matlab in mind (we have our own optimizer for circuit optimization). Consequently, passing information other than normal signals was not part of the design brief and there are no plans to change this as far as I know.

    The Simulink-AMS or Simulink-Spectre interface is great for when you want to model your encoding scheme (e.g. OFDM modulation etc) through a receiver and then decode the received OFDM and so on and look at BER and similar metrics. All those communication blocks in Simulink become very useful.

    Regards,

    Andrew.

Reply

  • Milad,

    The simulink flow is primarily intended for simulating a system simulation with a mixed-signal implementation. It's not been designed with optimization by Matlab in mind (we have our own optimizer for circuit optimization). Consequently, passing information other than normal signals was not part of the design brief and there are no plans to change this as far as I know.

    The Simulink-AMS or Simulink-Spectre interface is great for when you want to model your encoding scheme (e.g. OFDM modulation etc) through a receiver and then decode the received OFDM and so on and look at BER and similar metrics. All those communication blocks in Simulink become very useful.

    Regards,

    Andrew.

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