这是mini2440的pwm波驱动程序，它试图利用mini2440输出pwm波来控制步进电机-This is the driver for mini2440 to output pwm wave, it is trying to use the mini2440 s pwm wave to control a stepper motor

TI开发板AM3517控制步进电机的程序，如果从51单片机过渡到高级MCU感觉无从下手的可以参考下-TI AM3517 board stepper motor control procedures, if the transition 51 to advanced microcontroller MCU can not start feeling under reference