当前,仅仅使用单片机已经很难完成某些高要求的设计任务,而FPGA端口数量多、资源丰富,应用FPGA能够对单片机端口进行扩展,从而有效解决单片机端口资源少的问题。 At present, it has been very difficult to accomplish some high-demand design tasks only by using a single chip microcomputer. However, the number of FPGA ports and resources are abundant. The application of FPGA can extend the port of a singlechip so as to effectively solve the problem of few port resources of the singlechip.