本设计中选用目前应用较广泛的VHDL硬件电路描述语言，实现对路*通灯系统的控制器的硬件电路描述，通过编译、仿真，并下载到CPLD器件上进行编程制作，实现交通灯系统的控制过程。EDA技术是用于电子产品设计中比较先进的技术，可以代替设计者完成电子系统设计中的大部分工作，而且可以直接从程序中修改错误及系统功能而不需要硬件电路的支持，既缩短了研发周期，又大大节约了成本，受到了电子工程师的青睐。实现路*通灯系统的控制方法很多，可以用标准逻辑器件、可编程序控制器PLC、单片机等方案来实现。但是这些控制方法的功能修改及调试都需要硬件电路的支持，在一定程度上增加了功能修改及系统调试的困难。因此，在设计中采用EDA技术，应用目前广泛应用的VHDL硬件电路描述语言，实现交通灯系统控制器的设计，利用MAXPLUSⅡ集成开发环境进行综合、仿真，并下载到CPLD可编程逻辑器件中，完成系统的控制作用。-the current design was chosen over a wide range of VHDL hardware descr iption language circuit. Implementation of traffic lights at the junction of the controller hardware circuit descr iption, compiler, simulation, to download and CPLD programming on production, traffic signal system to achieve the control process. EDA technology is used to design electronic products more advanced technology, designers can replace the complete electronic system design most of the work, but can directly from the process to amend the mistakes and system functions without the need for hardware circuits of support, both to shorten the development cycle, another significant cost savings by the electronic engineers of all ages. Achieving junction traffic signal system control many ways, using standard logic devic