步进电机转速控制

}

#if tim4
  TIM_TimeBaseInitStruct. TIM_Prescaler=0;     //?¤·??μoíperiodò??eéè??pwmμ??ü?ú
  TIM_TimeBaseInitStruct .TIM_CounterMode=TIM_CounterMode_Up;
  TIM_TimeBaseInitStruct .TIM_Period=9;//???ó??oí?¤·??μò??eéè??pwm?ü?ú
  TIM_TimeBaseInitStruct .TIM_ClockDivision=0;
  TIM_TimeBaseInit(TIM4, &TIM_TimeBaseInitStruct);

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步进电机转速控制

原文：http://blog.csdn.net/u011046042/article/details/38345239