| 1. | An optical filter on infrared band and an optical tube for gathering light are also used . finally , the design of controller with complex programmed logic device chips and mcu are presented in this thesis , both of the hardware and software included . the system works well at 4mbit / s 最后,控制系统的设计采用了单片机和cpld的组合结构,以单片机为控制核心,由cpld实现编码解码及串并转换等数据处理,并完成了所有硬件的设计和软件编程及仿真测试。 |