Patent ID: 8762122
Filing Date: 2014-06-24
Classification: G06F

Abstract:
1. A method of simulating a mixed signal circuit comprising: performing a digital simulation of a digital circuit of the mixed signal circuit and an analog simulation of an analog circuit of the mixed signal circuit, wherein the analog circuit is coupled to the digital circuit; determining a digital event time for a digital event in the simulation of the digital circuit; determining an analog event time for an analog event in the simulation of the analog circuit of the mixed signal circuit, wherein the analog simulation of the analog circuit is performed up to the analog event time, wherein the analog event occurs at an end of an envelope waveform during the analog simulation of the analog circuit; comparing the digital event time and the analog event time to determine if the analog event time is later than the digital event time; and wherein the analog event time is later than the digital event time and the method further includes wherein one or more of the determining a digital event time, performing a digital simulation, determining an analog event time, performing an analog simulation, comparing the digital event time and the analog event time, resolving the analog simulation, synchronizing the analog simulation, and accepting and saving results are performed with a processor.