st7920是现在比较好用的一款液晶显示控制器，内部含有GB5中文字库，以及图形点阵。本文是ST7920的应用实例，并通过检验，共大家参考。-st7920 is now more user-friendly new LCD controller, GB5 contain internal Chinese font, and graphics dot-matrix. This is the Driver of application examples, and through inspection