一个点阵文字液晶显示的例程，用C语言编写，很实用，下来学习一下-Dot-matrix liquid crystal display text of a routine, with the C language, very practical, down to learn about

关键字：LCD液晶显示屏 串行 并行 ST7920 RT12864-Keywords: LCD LCD screen serial parallel ST7920 RT12864

带有汉字库的主控芯片st7920,st7921的资料说明，注意在使用前先要知道是串口形式还是并行方式。-汉字库with the master chip st7920, st7921 information note, the attention in the use of the former must know the form of serial or parallel manner.