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介绍了应用PIC16C57构成的低成本通用4×4键盘和6位LCD显示组件的原理和方法,提出了一种直接驱动LCD的解决方案,给出了电原理图、双CPU通讯控制时序图以及应用程序。
The principle and method of low cost common 4 × 4 keyboard and 6 bit LCD display module using PIC16C57 are introduced. A solution of direct driving LCD is presented. The electrical schematic diagram, dual CPU communication control timing diagram and application program.