1、显示模式设置(显示开关指令) r/w code:a0/rd/wr d7 d6 d5 d4 d3 d2 d1 d0 l h l h l h l h h h d 功能:开/关屏幕显示,不改变显示ram(dd ram)中的内容,也不影响内部状态。d=1,开显示;d=0, 关显示。如果在显示关闭的状态下选择静态驱动模式,那么内部电路将处于安全模式。该指令不...
tax practice" ** divided into three sections, the first part mainly on taxation and tax accounting bas** of the basic theory and knowledge on the second part of the main circulation tax, income t...