Abstract:Through the study of AC servo control system, successfully transplanted the UC/OSII Realtime multitasking operating system to the STM32 microcontroller, a realtime control system based on STM32 was designed, which enabled the calibration platform to meet the requirements of current sensor performance. In terms of the servo motor control, the combination of an opened loop and closed loop control mode was adopted, not only improved the positioning precision of the platform, but also reduced the pressure of the processors operation so as to improve realtime performance of the software. PC interface was designed based on Labview to make the calibration platform running condition monitoring intuitive, and stored important data information in the background. Experiments validate that this control system meets the requirements of calibration platform of speed stability, high positioning accuracy and lower speed operation, and etc.