首先介绍一款字符型液晶显示器YM1602C的硬件结构以及显示驱动控制器KS0066U的性能和特点 其次介绍了该液晶显示器与PIC16F877A单片机的硬件接口电路设计 最后介绍了PIC16F877A单片机在MPLAB IDE+PICC软件平台上的C语言编程以及针对YM1602C的C程序设计,完成显示的功能。-Firstly, an introduction is given about hardware structure of YM1602C and performance and characteristics of LCD s controller KS0066U. Secondly, a design of LCD display interface with PIC16F877A is discussed. At last, the C language programming based on MAPLAB-IDE+PICC for PIC16F877A is described and an example for YM1602C is also introduced.