介绍了一种点位运动控制器的设计，该控制器可以控制步进和伺服电机。该运动控制器以

STM32F103 为主控微处理器，实现了电机起停的加减速控制，扩展了 RS485 串行通信接口，设计了限位保护电

路，移植了嵌入式实时操作系统μC /OS-Ⅱ，通过μC /OS-Ⅱ来调度运动控制器的多个任务，设计了串口通信协议，

可以方便组成多轴控制系统.-Describes the design of a point of the motion controller, the controller can control a stepper and servo motors. The motion controller controlling microprocessor STM32F103, acceleration and deceleration control the motor starts and stops, extended RS485 serial communication interface, designed to limit protection circuits, transplantation of embedded real-time operating system μC/OS-Ⅱ μC/OS-Ⅱ scheduling multiple tasks of the motion controller, designed a serial communication protocol, can easily form a multi-axis control system.