毕业论文：基于MSP430步进电机控制器的设计（终稿）.doc

基于MSP430步进电机控制器的设计 摘 要 随着微电子和计算机技术的发展，步进电机的需求量与日俱增，它广泛用于打印机、电动玩具等消费类产品以及数控机床、工业机器人、医疗器械等机电产品中，其在各个国民经济领域都有应用。研究步进电机的控制系统，对提高控制精度和响应速度、节约能源等都具有重要意义。 本设计采用单片机对步进电机的控制，Abstract With the development of microelectronics and computer technology, increasing demand for stepper motor, which is widely used in printers, electronic toys and consumer products such as CNC machine tools, industrial robots, medical equipment and electrical products, and its various national fields are applied. Of stepper motor control system to improve the control accuracy and response speed, energy conservation and so important. This design is used MSP430 of Stepping motor control, through the IO port as a square wave output of the timing of step motor control signal, the signal through the ULN2003 driver chip stepper motor; the same time, with four buttons to the status of the motor control, and dynamic display with digital control motor speed. System consists of hardware and software design of two parts. Among them, the hardware design, including minimum system MSP430 microcontroller, power supply module, keyboard control module, stepper motor drive (integrated Darlington ULN2003) module, digital display (SM420361K digital control) module, speed modules (including the Hall probe UGN3020) six function modules, and each module in the circuit board to achieve the organic combination. Software design, including keyboard control, stepping motor pulse, the digital dynamic display and speed signal acquisition module, control procedures, and ultimately to the stepper motor rotation direction and rotation speed control of stepper motor rotation speed and dynamic display in the LED digital tube, real-time monitoring of the speed display. Software used in the software environment to edit IAR for MSP430 C language. This system has the intelligence, practicality and reliability features. Key Words： Stepping motor MSP430 Angular displacement Speed control Direction co