keil 4 和proteus仿真， 利用T0中断 实现1s定时,-keil 4 and proteus simulation, using the timer T0 interrupt achieve 1s,

利用51系列单片机实现四相八拍步进电机的转动。内含keil 4编程和proteus仿真 -Using the 51 Series MCU eight four-phase stepper motor rotation shot. Embedded programming and simulation proteus keil 4

51单片机和PC联机的小程序，特别适用于Proteus 7 Professional和Keil uVision4的初学者学习使用，已验证OK-51 microcontroller and PC online applet, especially for Proteus 7 Professional and Keil uVision4 beginners learning to use, has verified OK