Adaptive Simulation with HDL Control Module for Frequency Converting Circuits

Abstract:
An adaptive simulator-independent method is presented, which reduces the simulation and post-processing time of transient simulations through the use of an intelligent sweep control implemented as a behavioural model. It is capable to effectively reduce the points to be simulated for determining the operation regions, or to find the local extrema of a continuous value performance parameter. It controls the variable sweeps based on real time simulation results, and delivers the circuit’s performance parameters to be determined in a text file. This eliminates the often time consuming additional post-processing steps. The effectiveness of the proposed method is demonstrated for the case of a frequency divider verification, where it has led to a 10 times reduction in the simulation time, and eliminated any additional post-processing steps.