【摘要】 介绍一款电致发光显示屏接口电路,它采用普通小型LC D接口,可以利用I2C接口和并行接口与外界通讯。该接口电路采用单片机处理显示数据;利用C PLD产生显示控制信号,采用"乒乓操作"对数据流进行控制。除介绍接口电路的硬件结构外,还讨论了单片机的开发程序设计流程。最后介绍了点阵显示器相关字库的生成和有限字符集的查表译码方法。更多还原

【Abstract】 A general interface for EL display panel using small general interface is designed in this paper.I2C interface and parallel interface are used for da ta communication.The method with MCU processing Display data and CPLD producing display control signals of EL is realized.The Alternate Operate is used to con trol the data stream.The hardware configuration of the interface is introduced, and the development of the software of MCU is discussed.The production of the character stock for dotted display panel and the coding method with a look-up ta ble of limited character set is introduced at last.更多还原