基于ARM和nRF2401的嵌入式无线网络测控平台

Embedded Wireless Network Measurement and Control Platform Based on ARM and nRF2401

在简述ARM和nRF2401芯片功能的基础上,描述了基于ARM和nRF2401的嵌入式网络测控平台的构成方式、硬件电路和软件设计。该平台以Ethernet作为通信的主要媒介,在节点设备间采用了主从式结构,主节点采用S3C44B0X作为微控制器,通过以太网接口接收PC机的命令并与之进行数据交换,通过nRF2401与各从节点进行数据交换和命令的转发下达。系统采用了有中心的无线网络拓扑结构,移植了μC/OS-II操作系统。运行结果表明,该系统工作稳定,数据传输安全可靠,有实际参考价值。

On the basis of brief introduction to functions of ARM and nRF2401 chip, the constructing pattern, hardware circuits and software design of the embedded network measurement and control platform based on ARM and nRF2401 are described. With Ethernet as major communication media of the platform, master-slave structure is adopted between node equipments. The master node, microcontroller S3C44BOX, receives the commands from PCs and exchanges data with them through Ethernet interface. The data exchange with slave nodes and transferring commands to slave nodes are implemented through nRF2401. The system adopts HUB-based topology and transplants μC/OS-Ⅱ operating system. The running result of system shows that it works stably, exhibits safe and reliable characteristics for data transmission and holds actual reference value.