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  • 资源类型: 毕业设计
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  • 更新时间: 2021/1/13 23:33:38

设计介绍    



目 录


第1章  绪论 1
第2章  方案论证对照设计 5
2.1单片机概述 5
2.2步进机电的事情原理 6
2.3单片机控制步进机电的设计思绪 9
第3章  控制系统的硬件电路设计 10
3.1 SPCE061A的介绍 10
3.1.1 性能 11
3.1.2 结构 12
3.1.3芯片的引脚排列和说明 12
3.1.4 SPCE061A单片机硬件结构 14
3.1.5 μ’NspTM的焦点结构 15
3.2步进机电的选择 17
3.3 步进机电的驱动电路设计 18
3.4数码管显示电路的设计 20
3.5 4X4键盘电路的设计 21
第4章 控制系统的软件设计 24
4.1 控制脉冲的产生 24
4.2 步进机电的旋转方向和时序脉冲的关系 25
4.3 步数的确定 27
4.4 步进机电的变速控制 29
4.5 语音报数 33
第5章  结论 35
参照文献 36
致谢 38
附录 39

 

 

摘  要


单片微型计算机简称单片机。它是把组成微型计算机的各功能部件:中央措置惩罚器、CPU、随机存取存储器RAM、只读存储器ROM、I/O接口电路、定时器/计数器和串行通讯接口等制作在一块集成芯片中,组成一个完整的微型计算机。单片机主要应用于控制领域,由于其具有可靠性高、体积小、价格低、易于东西化等特色,因而在智能仪器仪表、实时工业控制、智能终端、通讯设备、导航系统、家用电器等自控领域获得广泛应用[1]。
步进机电是一种能将电脉冲信号转换成角位移或线位移的机电元件,实质上是一种数字/角度转换器步进机电控制系统主要由步进控制器,功率放大器及步进机电等组成.步进控制器由缓冲寄存器,环形分配器,控制逻辑及正,反转控制门等组成,能把输入的脉冲转换成环形脉冲,以便控制步进机电,并能举行正反向控制.但由于步进控制器线路复杂.成本高.采取单片机控制,用软件取代上述步进控制器,使得线路简单,成本低,可靠性大大增加,灵活改变步进机电的控制方案,无需逻辑电路组成时序发生器.软件编程可灵活产生不同类型步进机电励磁序列来控制各种步进机电的运行方式并可实现一台单片机控制多台机电.提供灵活多样的控制手段和提高控制精度对复杂繁琐的控制易于实现,尤其在本系统中更显示出微机控制的优越性。
本设计采取凌阳16 位单片机SPCE061A对步进机电举行控制,通过IO口输出的具有时序的方波作为步进机电的控制信号,信号经过芯片L298N驱动步进机电;同时,用 4X4的键盘来对机电的状态举行控制,并用数码管显示机电的转速,采取74LS164作为4位单个数码管的显示驱动,从单片机输入信号;利用凌阳单片机的语音功能播报机电的转速。

关头词: 单片机  步进机电

 

 


ABSTRACT[2]


  The single slice of microcomputers is abbreviated as the one-chip computer. It is every function part which makes up the microcomputer: Central processing unit, CPU, arbitrary access memory RAM , read-only memory ROM,, I/O interface circuit , timer / counter and serial communication interface ,etc. make in the integrated chip together, form an intact microcomputer. One-chip computer apply controlled field to mainly, because it have dependability high , small , price low , easy commercialization ,etc. characteristic, therefore won extensive application in fields of automatic control such as intellectual instrument and apparatus , real-time industrial control , intelligent terminal , communication equipment , navigation system , household appliances ,etc.
It is that one kind can change the electric pulse signal into a electromechanical component of angle displacement or line displacement to walk into the electrical machinery, it is a kind of figure / angle converter that is walked into the control system of the electrical machinery to mainly walk into the controller in fact, power amplifier and walking into the electrical machinery ,etc. make up . Walked into the controller to buffer the register , the annular distributor, control logic and, overturn , control door ,etc. make up , can change the pulse input into into an annular pulse , in order to control , walk into electrical machinery , can carry on positive and negative to control. But because walk into the controller circuit complicatedly. With high costs. Adopt one-chip computer control , replace with software described above to walk into the controller , make the circuit simple, with low costs, dependability increases greatly, change the control scheme of walking into the electrical machinery flexibly , do not need logical circuit to make up the time sequence generator . Software programming very flexible to produce , walk into electrical machinery excitation array come , control various operation way to walk into electrical machinery and can realize one machine control many sets of electrical machinery while being different kinds of. It is easy to realize to offer the flexible control means and improving the precision of controlling to complicated and tedious control, demonstrate the superiority that the computer controls especially in this system even more.
    Design , adopt , insult male genital 16 one-chip computer SPCE061A to walk into electrical machinery control originally, square wave with time sequence as the control signal of walking into the electrical machinery through what IO mouth is outputted, the signal drives and walks into the electrical machinery through the chip L298N; Meanwhile , come state in electrical machinery go on , control with keyboard of 4X4 , in charge of rotational speed to reveal electrical machinery with number, adopt 74LS164 urge as 4 single number display that in charge of , from the input signal of the one-chip computer; Utilize the pronunciation function of insulting the open one-chip computer to report the rotational speed of the electrical machinery.
Keyword: One-chip computer Walk into the electrical machinery

 


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