VGG12864的OLED的演示程序，都是用I/O口控制的（在c8051f120上开发的），特别适用于在低温显示的场合，次程序保证能够提高你产品的开发速度-VGG12864 of OLED demo program, are used I/O port control (in c8051f120 developed), is particularly applicable at low temperatures show occasions, sub-procedures to ensure that you can improve product development speed