Low-Speed Stepping Motor Design Based on the STM8 Control

When stepping motors ran at low-speed and in a full step,vibration was relatively big in the control system.In order to make stepping motor run smoothly at a low-speed,an embedded system was designed based on STM8S903 to control the low-speed stepping motor.The hardware system parts using L6203 chip driver stepping motor were based on the PWM pulse width current subdivision principle.Using the LM358 amplifier as current feedback device in current signal detection circuit,the internal A/D module in the single chip real-time captures and converts the current information into digital consults,and then it was compared with the given current set by system.System software is based on the IAR for STM8 platform design of control system to improve the stepping motor running stability at the low-speed.