基于ARM的智能来电显示器的设计

ARM-based Design of Intelligent Caller ID

介绍基于ARM的来电号码显示器的实现方法。利用CID芯片HT9032C来解调FSK码,同时可实现液晶显示、E2PROM存储和语音播报电话主叫号码等功能,以SPI串行接口智能显示键盘控制芯片ZLG7289A为核心设计的键盘电路可实现查阅、删除信息。文章详细介绍了系统的硬件电路设计和软件流程。实践表明,显示器外围器件少,抗干扰能力强,使用方便。

In this paper,the implementation method of the ARM-based caller ID display is introduced.The chip HT9032C is used to demodulate the FSK CID code.The system has features of a liquid crystal display,E2PROM memory and voice broadcast phone.The intelligent keyboard control chip ZLG7289A with the SPI serial interface is the core of the keyboard circuit,which can access or delete information.The hardware circuit and software process are discussed in detail in this paper.Practice shows that it has the fewer display peripheral devices,strong anti-interference ability and being easy to use.