基于DSP的交通灯控制系统的硬件设计

Design of Hardware for Traffic light Control System Base on DSP

介绍一种以DSP芯片为核心处理器的十字路口交通灯控制系统硬件的设计方法。该系统采用TI公司的TMS320VC5416为核心主控制电路,并由CPLD可编程逻辑器件构成的I/O空间扩展模块、PS2键盘模块、LED点阵倒计时模块及路况信息提示液晶显示模块等构成。实验测试结果表明,系统具有快速、准确的实现信号灯切换、路况信息提示等功能。

One kind of hardware design method for the crossing traffic light control system was introduced by using DSP as the core processor. The system used the TMS320VC5416 of TI Company for core control circuit, and consists of the I/O space module that expanded by the CPLD programmable logic device, PS2 Keyboard module, LED count-downtime module and the traffic information clewed by LCI） module, etc. The tests indicated that the system had the expected functions such as the fast and accurate switching to achieve information light, prompting the information of road condition, etc.