摘要
为了在无网络的情况下,安全、方便地传输文件,设计一个采用具有USB2.0接口的PIC18F4550单片机和高速无线收发器件nRF24L01构建的无线文件传输系统,介绍了其硬件电路和软件程序设计,并详细阐述了单片机与计算机间的USB通信以及单片机与射频器件之间的通信过程。实验表明,该系统可传输不同格式不同大小的文件,且传输速率最高可达1.28 Mb/s。该设计具有电路简单、传输速率高、性能稳定且便于携带等特点。
In order to safely and conveniently transfer files without network,the paper designed a wireless file transmission system which consisted of MCU PIC18F4550 with USB2.0 interface and high-speed wireless transceiver chip nRF24LOl,it introduced from hardware and software,and elaborated on USB communication between MCU and computer, and communication process of MCU and RF chip.Experiments prove that the system can transfer different size and different format files,and the speed is up to 1.28Mb/s.The design has advantages of simple circuit,high data transmission rate, steady performance and very easy handling.
出处
《电子设计工程》
2010年第3期99-100,103,共3页
Electronic Design Engineering
