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29 天
上位机和下位机是什么意思 上位机和下位机的区别
本文设计了一种基于AT89S52 单片机和VC++的步进电机控制系统,可以实现对步进 电机的基本控制及状态实时显示。 2 系统组成 使用、控制步进电机必须由环形脉冲源、功率放大电路等部分组成控制系统,脉冲信号 一般由单片机或CPU产生,一般脉冲信号的占空比为0 ...
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