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DRV8874: DRV8874使用相关问题

Part Number: DRV8874

1、这种驱动芯片没办法做到调速?

2、PWM Control Mode这种模式下,哪里输入PWM,规格书中这个模式和PH/EN模式没有太大区别,看起来都是高低电平调节,没有类似于步进电机驱动的那种PWM调速?