Digital-analog Hybrid Systems Simulation Technology

Based on a electronic system which is made up of digital-analog circuits, FPGA and MCU, to look up the weakness of the circuits and to optimize the system design before the system is put into production, this paper do system simulation for it.First, the simulation of the two part of the system, FPGA and MCU is done respectively. And four system collaborative simulation schemes are designed. And after evaluation, two excellent EDA tools Orcad/PSpice and Modelsim are choosen to relize the system collaborative simulations .And to test the work performances of the system circuit, many circuit characteristic analysis are done. The suggestions of the circuit design are made.At last, the circuit common difference analysis is done according to the results of circuit characteristic analysis, and circuit dependability analysis is done.