基于FPGA的步进电机控制系统的数字硬件设计研究_本科毕业设计论文.doc

- PAGE V- 基于FPGA的步进电机控制 系统的数字硬件设计研究 专 业 名 称：电子信息科学与技术专业 摘要 步进电机因其能够精确地控制机械的移动量而被广泛采用。步进电机是由输入的脉冲信号来加以控制的。模拟电路虽然可以用来产生连续可调的脉冲信号，但却难以控制，而用数字集成电路来对步进电机进行控制，则能克服以上缺点。 现在，数字集成电路的设计越来越多地采用VHDL + FPGA 的设计方法。采用VHDL 的设计方法有着不依赖器件、移植容易、能加快设计的特点。并且，VHDL 在现场就能进行修改，与FPGA 器件相结合，能大大提高设计的灵活性与效率，缩短产品的开发周期，加快产品的上市时间。VHDL + FPGA 的设计方法是数字系统设计的一个创新，也是未来的一种发展方向。 \o 步进电机 步进电机是一种将电脉冲转化为角位移的执行机构，已广泛应用于各种自动化控制系统中。为了提高对步进电机的细分要求，提出了基于 \o FPGA FPGA控制的步进电机控制器方案。给出了用VHDL语言层次化设计各功能模块的过程，利用QuartusⅡ进行仿真，给出了仿真结果，并成功地在FPGA器件上验证了设计的可能性。采用FPGA器件和VHDL语言，只需修改模块程序参数，而无须修改硬件电路就能实现各种控制。该设计硬件结构简单可靠，可根据实践需要灵活方便进行配置。 关键词：VHDL FPGA 步进电机  Abstract Stepper motors can be precise because of mechanical control of the movement of production and are widely used. Stepper motor input from the pulse signal to control. Although analog circuits can be used to produce continuously adjustable pulse signal, but it is difficult to control, and the use of digital integrated circuits to the stepper motor control, to overcome the above drawbacks. Now, digital IC design increasingly used VHDL + FPGA design methods. VHDL design is not dependent on devices, easily transplanted, can speed up the design characteristics. Furthermore, VHDL at the scene can make changes and FPGA devices combine can greatly improve the design flexibility and efficiency, shorten product development cycles, accelerate product time to market. VHDL + FPGA design methodology for digital systems design an innovative, as well as the future direction of development. Stepping motor is a electrical impulses into angular displacement of the executive agency, has been widely used in all kinds of automatic control system. In order to improve the stepper motor subdivision requirements, is put forward based on FPGA control stepping motor controller scheme. In this paper, a VHDL language the function module design of hierarchical process, use Ⅱ Quartus simulation, then the simulation results, and succeeded in the FPGA device validate design of