摘要
介绍双模式USB接口在LED控制系统中的应用,该系统基于USB接口芯片CH375和LED控制芯片TM1803,具有低成本、开发简单方便的特点。给出了LED控制和单片机控制USB接口的电路原理图,并介绍了实现双模式USB和LED控制的软件设计方法。通过硬件调试结果证明:双模式USB通讯性能稳定、可靠性高、响应速度快,以及LED显示效果良好。
The use of double mode USB interface in LED control system is introduced in this paper.This system based on the USB interface chip CH375 and LED TM1803 control chip is low cost,simple and convenient.The LED control and SCM USB interface circuit schematics are presented,and the realization of double-mode USB and LED control software design are introduced in detail.The hardware debugging results show that double-mode USB has stable communication performance,high reliability and fast response.And the effect of LED display is good.
出处
《电脑与电信》
2010年第10期63-64,67,共3页
Computer & Telecommunication
