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 c