摘要
研究一种基于8位MCU的嵌入式Intemet应用方案，解决一类数据通信量不大、实时性要求不高的信息家电接入Intemet的问题。采用AT89C55作为信息家电接入Intemet的MCU，RTLS019AS控制以太网帧的收送，A／D和电平转换芯片实现数据的采集和电平转换，实现远程PC对信息家电的监测和控制。介绍了基于8位MCU的嵌入式Intemet应用方案的系统结构、嵌入式TCP／IP协议栈、系统硬件和软件设计。对基于该方毒实现的一个嵌入式Intemet应用进行了测试。
This paper studies an application of embedded Internet based on 8-bit MCU, which solves the problem of small data communication and low real time information appliances connecting Internet. AT89C55 is used as the microprocessor of information appliances connecting Internet, receiving and transmitting the Ethernet frame is controlled by RTLS019AS, A/D chip and electrical level conversion chip are used to realize data gathering and electrical level conversion, it is realized that information appliances are monitored and controlled by remote PC. Then, the structure of this system, embedded TCP/IP protocols, hardware and software design are introduced. Finally an application of embedded Internet based on 8-bit MCU is tested.
出处
《电子工程师》
2008年第2期71-73,共3页
Electronic Engineer
