摘要
为了实现超高频(UHF)读写设备的远程实时交互功能,本文基于以太网网卡芯片ENC28J60和超高频射频识别芯片AS3990,利用LPC2138作为主控制器,实现了超高频网络读写器的软硬件方案设计。在读写器上移植实时操作系统μC/OS-II和轻量级IP协议LwIP,使读写器可以连入互联网,实现了读写参数远程配置和数据实时交互,满足了快速发展的RFID产业对UHF读写器多样性需求。
To implement the function of remote and real-time interaction on a UHF interrogator, the hardware and software design of a networked reader using LPC2138 as chief controller is put forward in this article based on Ethernet controller ENC28J60 and UHF RFID chip AS3990. The porting of real-time OS μC/OS-Ⅱand light weight IP protocol LwIP on the interrogator enables it to connect with the Internet, so as to comply with remote configuration and real-time data interaction, which meets the diverse demands of UHF readers in RFID industry well.
出处
《单片机与嵌入式系统应用》
2011年第12期51-53,共3页
Microcontrollers & Embedded Systems
