摘要
为了满足企业对客户电话资料的管理,本文分析了主叫识别信息传送及显示(CID)和解码芯片CMX865的基本原理.通过软件和CMX865的结合,提出了在嵌入式系统中构建来电显示功能模块的具体方法和实现,并为上层提供了uCGUI接口的嵌入式系统驱动.经过PC机上ARM ADS软件环境下测试,响应时间小于3.6s,符合来电显示标准.
In order to satisfy the control over customer's telephone materials of enterprises,this paper gives an analysis on the basic principle of Calling Identity Delivery(CID) and the decoding chip CMX865.Through connecting the software and CMX865,it presents a description of implementation of CID function module,and then provides the embedded system drivers of uCGUI interface.By testing on PC in ARM ADS software environment,the response time is less than 3.6s and it accords with the CID standard.
出处
《电脑知识与技术（过刊）》
2007年第14期420-421,506,共3页
Computer Knowledge and Technology
