With this information, control can send speed up or slow down commands to the disc drive motor.
根据这些个信息，控制系统可以向盘片驱动系统发送提速或降速的指令。
A method which control the step motor with 8051 microcontroller is introduced, some methods in speed-up and speed-down curve design are compared.
介绍了8051系列单片机对步进电机的控制方法，并且提出和对比了几种步进电机升降速曲线的设计方案。
The controller can control many step-motor systems in the meantime, and made motor run in multi-curve including speed-up, speed-down, orientation and direction's change.
该控制器可同时控制多台步进电机按曲线方式运行，包括加减速、定位及换向功能等。
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