A New Type of Touch Screen Based on 51 Series MCU

This paper presents a touch of color display control drive scheme based on 51 series MCU,to achieve the integration of the human-computer interaction.The hardware of the system adopts I/O expansion mode,8 bits I/O implementation of a 16 bit parallel data transmission,the realization of saving I/O.The software takes local regional operation,which only needs to update the display corresponding information in areas of the internal RAM data manipulation,with no reed of operation in othen areas,which saves processing time,improves the data update rate,and effectively solve the slow screen refresh rate and flicker problem.