Singlechip-realized System of Real-time Control of Traffic Signal Lamp
Lin Jie Zhang Lianchao Yao Jun (Institute of Meteorology, PLA University of Science & Technology, Jiangsu Nanjing, 211101)
In this paper, we introduce a system of real-time control of traffic signal lamp, which is designed using programmable parallel interface device 8255A,interrupt controller 8259A, and 8088CPU. The whole process included hardware circuit designing and program designing, in which some important technique problem that may meet during the use of Singlechip involved. In addition, difference in the performance between the hardware and software designing method is also discussed in this paper.