基于nRF905的LED屏无线通信设计与实现  

Design and Realization of LED Screen Wireless Communication Based on nRF905

作　　者：叶剑锋[1] 周小平[1] 

机构地区：[1]中国人民解放军91550部队94分队

出　　处：《现代电子技术》2011年第14期135-137,共3页Modern Electronics Technique

摘　　要：针对采用芯片nRF905的LED屏无线通信,分别给出了上位机和下位机的系统框图,分析系统的功耗,比较无线模块和串口通信的通信速率,验证系统的可行性,设计串口通信协议。为保证数据质量,设计了数据通信协议,针对串口数据的nRF905分包转发,设计了无线芯片通信协议。例举了状态机的5种状态,介绍状态间的转换条件,巧妙地编程设计了通信数据的定时器检查,论述了基于状态机的嵌入式单片机软件编程。Aiming at the LED screen wireless communication based on chip nRF905, the system block diagrams of host and slave computers are given respectively. The system power dissipation is analysed. The communication rate of wireless module and serial port communication is compared. The feasibility of system is validated. The communication protocol of serial port are designed. Considering the subletting and forwarding of serial port data by chip nRF905, the wireless communi- cation protocols of chip are designed. Five different states of the state machine are listed. Moreover, the transformation condi- tion between states is given. The timer inspection of communication data was realized by skillful programming. Software pro- gramming of embedded SCM based on state machine is discussed.

关 键 词：NRF905 单片机ATmega16A 可行性分析 状态机 

分 类 号：TN911-34[电子电信—通信与信息系统]