这是微软的一个USB块传输例程,虽然它是基于Intel USB开发板的,但是也很值得我们好好的研究。-This is a Microsoft USB block transmission routines, although it is based on the Intel USB development board, but also worthy of our good look.
程序详细功能介绍:
* 利用AT89S51单片机的P0端口的P0.0-P0.7连接到一个共阳数码管的a-h的笔段上,
* 数码管的公共端通过三极管8550选通。在数码管上循环显示0-9数字,显示时间的间隔可通过修改延时程序。 -Procedures detailed functional Introduction:* use AT89S51 MCU port P0 is connected to P0.0-P0.7 Yang a total digital control of the a-h T segment,* digital tube through the public side-gated transistor 8550. In the digital control on the circulation figures 0-9 show, indicating the time interval may be delayed by modifying the procedures.