ok6410开发板的按键驱动程序以及其测试应用程序。-the driver of button about OK6410, and the application process of it.

电梯控制显示程序的源代码。WORD文档测试可用。八层电梯，每个按键按下后显示相应的楼层。-Elevator control display program source code. The WORD document can be used to test. The eight story elevator, press the button to display the corresponding to each floor.