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使用步进电机驱动芯片DRV8825，使用混合衰减，电流设置为2,2A，驱动1.5A的步进电机，使用24V电压。只要一使能，电机有啸叫声，如果发送CLK信号，电机运动抖动厉害，啸叫声变大。大家帮忙解决下，谢谢！
