The system outputs control pulsing signal by HSO of 80C196KC,which consumes little resource of CPU,and realizes the rotating,locking,rate-changing and fraction control of stepper motor.

• 系统通过80C196KC高速输出口HSO输出控制脉冲,占用的CPU资源极少,实现了步进电机的转动,锁定,变速控制和软件细分控制。