利用ARM芯片模拟实现交通灯控制。自行选择所需ARM芯片，查阅相关文献资料，熟悉所选ARM芯片，了解所选ARM芯片各个引脚功能，工作方式，计数/定时，I/O口，中断等相关原理，通过软硬件设计实现利用ARM芯片完成交通灯的模拟控制。-Using ARM chip simulation to achieve traffic light control. To　the desired ARM chip, access to relevant documents, familiar with the selected ARM chip, ARM chip is selected to understand each pin function, working mode, counting/timing, I/O port, interrupt and other related principle, through the hardware and software design for analog control of traffic lights using ARM chip to complete.