verilog 语言写的交通灯设计源代码，实现左转灯、红灯、绿灯、黄灯转换，并且提供手动控制按钮-verilog language source code for design of traffic lights, turn left to achieve lights, red light, green light, yellow light conversion, and provides manual control buttons

this a verilog code for traffic control in a traffic bursty city.-this is a verilog code for traffic control in a traffic bursty city.

基于Xilinx最新的Virtex-7的存储器IP核的使用，verilog语言编写的所有源码。-Based on Xilinx latest Virtex-7 FPGA,all of the MIG IP code sources by Verilog language.

交通灯分为X组和Y组，每组包括了2位倒计时数码管和红黄绿三色LED信号灯（每组包括﹢、-两小组，显示内容一样），考虑到应用需求，要求芯片可通过I2C接口连接到上位机，以调节内部控制寄存器,此为Verilog代码，包含led、seg、timer等模块。-Traffic lights are divided into groups X and Y groups, each including two digital countdown yellow-green and red LED lights