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机构地区:[1]北京航空航天大学,北京100083
出 处:《兵工自动化》2008年第1期67-68,共2页Ordnance Industry Automation
摘 要:采用AVR系列高性能单片机ATmega128加RTL8019AS以太网控制器组成一个最小系统。该最小系统使用uIP嵌入TCP/IP协议实现以太网通信,并采用TCP协议在嵌入式网络节点之间建立连接,完成相关配置。利用UDP协议完成数据传输。其ATmega128内部有3个计时器,可任选一个为TCP/IP协议中与事件有关的事件定时。在移植好uIP协议栈后,需要编写上层应用程序,完成用户所需功能。A minimum system based on network controller RTL8019AS and ATmega128 which is one of the AVR serial microcontrollers was constructed. The ulP TCP/IP stack was adopted to implement the communication based on Ethernet, and the build of the links between the embedded network nodes and the configuration of each node was carried out based on TCP protocol for reliability. The data transfers were mainly based on UDP. One of the three timers in ATmega128 can be used to time the events which relate with the TCP/IP protocol. After transplant the ulP TCP/IP protocols, the upper layer application program needed to be compiled to fulfill the user's required function.
分 类 号:TP393.11[自动化与计算机技术—计算机应用技术]
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