摘要
短距离无线通信以其使用便捷和功耗低等优势得到了广泛应用。设计了基于无线数据收发芯片nRF905、以ATmega16为主处理芯片的无线数据传输设备,给出了无线数据传输系统框图和硬件电路。同时,制定了外部数据设备和无线数据传输模块之间的串行通信协议,介绍了nRF905的配置及收发流程、USART和SPI等接口软件的设计方案,给出了系统主程序流程图。最终实现了该无线数据传输设备,实验表明该设备能完成高速有效的数据传输功能。
Wireless communication of short range is widely used for its convenience and low-power consumption. A wireless data transmission equipment based on wireless T-R chip nRF905 is designed with main processing chip ATmegal6. The system schematic diagram and hardware are presented. Then the serial communication protocol between external data equipment and wireless data transmission model is established. The configuration of nRF905, T-R flow and the interface software of USART and SPI are introduced. The system software flow chart is presented. Finally, the wireless data transmission equipment is realized, and experiment results show that the equipment is of high-speed and has efficient data transmission capability.
出处
《电子工程师》
2007年第3期28-31,共4页
Electronic Engineer
