| 摘要 |
PROBLEM TO BE SOLVED: To enable the designer of an analog circuit to independently execute the simulation of a digital/analog mixedly existing circuit by comparing a signal based on an extracted signal and an expected value with an output signal from the newly designed analog circuit. SOLUTION: The function of a digital circuit is described in a prescribed language (S1), next, the function of the analog circuit on a design specification is described in a prescribed language (S2) and the extraction of the input signal from the digital circuit to the analog circuit and the extraction of the expected value from the analog circuit are performed as pre-processing (S3). Next, as post-processing, a signal expressing the connection relation of the newly designed analog circuit is outputted (S4), that output signal is compared with the extracted input signal and expected value, and the simulation of interface conditions is executed. Thus, the circuit designer, who knows the operating method of a circuit simulator, can independently simulate the interface conditions of the digital/analog mixedly existing circuit.
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