Pointing to the problem of Chinese data display of ins pection and measure system of power network quality, an interface circuit betwee n PIC18F458 SCM and LCD module MGLS12864, and designed program were introduced in this paper.

• 针对电网质量检测系统的中文数据显示问题，介绍了一种利用新型单片机PIC18F458与液晶显示模块MGLS12864构建的硬件接口电路和软件程序。