摘要
结合车用多媒体触控面板的功能及外观设计要求,充分考虑实际应用环境的复杂性,外界的各种电磁波杂讯等干扰,基于CS5518芯片所具有的电容式触摸感应的功能和强大的抗干扰能力,采用CS5518为主要芯片来实现触摸的捕捉和反馈。基于CS8961在系统编程功能允许用户通过JTAG端口或UART端口方便地更新程序代码,选此芯片作为主控芯片并通过I2C协议进行通信。CS8966是一种通用微控制器具有丰富的外设功能,可用来控制背光灯的亮暗。通过大量的实验与安全性能测试,目前该多媒体触摸面板已经大量投入生产。总结出利用CS5518实现的触摸技术已经成熟,而且可以应用于其他领域,对其研究实用意义重大。
According to functions and design requirements of automotive multimedia touch panel,the complexity of the ac-tual application environment and external electromagnetic interference are fully considered. Since CS5518 chip has capacitive touch sensing function and powerful anti-jamming capacity,CS5518 chip is used to realize capture and feedback of the touch. In the case of allowance of the system programming function,users can easily update the program code based on CS8961 through JTAG port or UART port. This chip is chosen as the main control chip and for communication by means of IIC protocol. CS8966 is a common microcontroller,which has a wealth of peripheral functions,and can be used to control the backlight. A lot of ex-periments and safety testing of the multimedia touch panel were carried out. A mass production of multimedia touch panels has been made. The touch technology based on CS5518 has been mature,and can be applied to other areas. It is worth studying.
出处
《现代电子技术》
北大核心
2015年第2期62-64,68,共4页
Modern Electronics Technique
