基于Cypress单片机的USB键盘设计  

One USB Keyboard Based on the Cypress MCU

作　　者：王瑞凤 吴炜[1] 

机构地区：[1]江西蓝天学院,江西南昌330029

出　　处：《科技广场》2011年第3期160-162,共3页Science Mosaic

摘　　要：USB接口是一种简单易行又能够最大限度地节省计算机软硬件资源的接口,具有真正的即插即用、数据传输速度快、性能稳定等优点,USB设备在近几年得到了迅速普及。本文设计了一种基于Cypress单片机的USB键盘,首先简要介绍了USB接口协议的发展和CY7C63513芯片的特点,然后分析了键盘的硬件电路各部分的原理作用和键盘扫描程序流程。USB is easy to use.It can save the furthest of resource of the computer＇s software and hardware.It is really plug and play,it has high transmission speed and steady performance.The USB equipments are developed very quick these years.The paper designs a USB keyboard base on the Cypress MCU.Firstly,it intruduces the development of the USB protocol and the CY7C63513 MCU,then analyses the principle of all the parts of the hardware circuit and the software process.

关 键 词：USB 键盘 矩阵扫描 CY7C63513 

分 类 号：TN43[电子电信—微电子学与固体电子学]