In our current digital circuit, the real analog circuit test box is not perfect, the function is too strong. Especially in the process of using the cost of each discrete components of the needle is easy to damage. In order to solve these problems, in a number of existing electrical, power module test box based on, the idea of digital and analog electronic experimental box combo, and joined the circuit analysis module, to become number of electricity, power module and circuit analysis of a test box. FPGA main control chip for digital circuit of discrete components, using FPGA program as the main core of the digital chip, on this basis to make more common use of the digital chip program. So that not only can save the cost of discrete components, but also can make the function of the experimental box is more powerful, more flexibility.%在我们目前所用的数字电路，模拟电路实验箱配置不太完善，功能上局限性太强。特别是在使用的过程中成本较大，每个分立元器件的管脚针头易损坏。为了解决这些问题，在现有的数电，模电实验箱的基础上，实现数模电实验箱二合一的思想，并加入了电路分析的模块，使之成为数电、模电和电路分析三合一的实验箱。用FPGA主控芯片代替数字电路的分立元器件，用FPGA程序作为数字芯片的主要核心，在此基础上做出更多常用数字芯片的程序。这样使不但能节省分立元器件成本，还可以使实验箱的功能更加强大，灵活性更高。
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