6个用VB和DELPHI编写的FOR USB驱动程序，非常难得，是我用3个月时间编写的，相当有参考价值。-six VB and Delphi FOR prepared by the USB driver, and very rare, yes, I spent three months time to prepare, have considerable reference value.

ah 209型通用读卡器驱动程序源码，ic卡，光电卡，隐形光电卡通用读卡器程序-ah 209-based driver-source general-purpose reader, ic card, photoelectric cards, stealth photoelectric reader program using cartoons

procedure senddata var i:integer commflg : Boolean begin commflg:=true for i:=1 to 8 do begin if not fcomm comml writecommdata(sendbutter,i) then begin Commflg=false break end end

1602液晶显示模块 整屏移动 单片机驱动 -1602 lcd