无帧同步信号串行数据在单片机中的识别与处理  

Identify and Process Serial Data Without Frame Synchronous Signal in SCM

作　　者：王彬[1] 李文新[2] 佘世刚[1] 周毅[1] 

机构地区：[1]兰州物理研究所,甘肃兰州730000 [2]西北工业大学,陕西西安710072

出　　处：《工业控制计算机》2008年第8期18-19,共2页Industrial Control Computer

摘　　要：该电子产品的功能是接收来自某GPS接收机发送的GPS串行数据帧,然后对数据进行识别与处理;但在硬件设计时由于I/O口资源使用紧张,使得接收GPS串行数据帧时只有时钟控制信号与串行数据信号,而没有帧同步信号,这样在软件实现时对于识别出正确的数据帧造成了很大的困难,在软件设计时利用GPS串行数据帧中数据自身以及通信协议中的一些特殊性来对无帧同步信号的串行数据进行识别与处理。This electronic product is in order to receive the GPS serial data frame which is sended from the GPS receiver,then identify and process.But in the hardware design phase,there was few I/O pin can be used,so don＇t have the frame synchronous signal in communication,only the clock control signal and the serial data signal were used in receiving the GPS serial data frame.Because of this,using software to identify accuracy data frame is very hard.In the software design stage, writer allows for some specialities of GPS serial data frame and communicate protocol to solve this problem.

关 键 词：串行通信 帧同步 GPS串行数据 

分 类 号：TP368.12[自动化与计算机技术—计算机系统结构]