C8051F020单片机与 LCD1602液晶 的接口函数，用C8051F020单片机来控制液晶的现实内容。采用单片机口线模拟时序。提供底层控制函数和使用简单的高层封装函数。底层函数主要包含口线控制、命令字和数据字的写入和读出操作。高层函数主要包括初始化、清屏、在屏幕上任意位置显示字符串等函数。-C8051F020 MCU and LCD1602 LCD interface functions, using C8051F020 microcontroller to control the reality of the content of liquid crystal. Single-chip port line analog timing. To provide low-level control functions and the use of a simple high-level wrapper functions. The bottom line of the function consists mainly of population control, command word and data word write and read operations. High-level functions include initialization, clear screen, anywhere on the screen shows the function strings and so on.