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文章针对利用微处理器(MCU)控制液晶显示驱动器(LCD)的应用开发实例,提出了一种采用串行方式来设计微处理器和液晶显示驱动器之间接口的方案。该方案是在现有点阵式液晶显示屏上附加一个MCU,通过程序设计利用MCU的I/O端口去模拟串行总线,从而实现了利用MCU去控制LCD的目的。
Aiming at the application development of controlling liquid crystal display driver (LCD) by using microprocessor (MCU), a scheme for designing the interface between microprocessor and liquid crystal display driver by serial mode is put forward. The solution is to add an MCU to the existing dot matrix liquid crystal display and to simulate the serial bus through the I / O port of the MCU through programming so as to realize the purpose of using the MCU to control the LCD.