说明：  简要介绍了触摸屏控制芯片FM7843的工作原理,以及与ARM7微控制器LPC2290的连接。液晶屏采用SED1335 器与LPC2290之间的接口电路。还介绍了触摸屏的工作原理,重点阐述触摸屏与液晶显示模块的集成算法。
(Briefly introduced the touch screen to control the working principle of the FM7843 chip, as well as the LPC2290 microcontroller with ARM7 connection. SED1335 LCD device with the use of the interface circuit between the LPC2290. Also introduced the principle of the touch screen, with a focus on the touch-screen liquid crystal display module with an integrated algorithm.)