本文主要介绍了基于MSP430F149单片机实现的步进电机通用控制器。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。文中重点探讨了步进电机升降速曲线的设计方案及其实现方法。 -In this paper, based on the MSP430F149 single-chip stepper motor to achieve universal controller. The controller can simultaneously control multiple stepper motor run by the curve, including acceleration and deceleration, positioning and reversing function. The article focuses on take-off and landing speed curve stepper motor design and its realization method.