CAN-bus strategy and its application in multi-axis motion control of stepper motor

摘要

CAN bus control system as the most active branch in the field of industrial measurement and control, has achieved rapid development in the field of industrial measurement and control. Regard to the rapid increase of the number of controllable nodes in the field of industrial measurement and control, there is higher request for the control of multi -node. Most of the traditional control mode used industrial computer control combining with control card. For multi-node control, industrial control needs more standard control interface, poor scalability, and it is expensive and high power consumption, this design uses the CAN bus distributed control node of control mode. Each control node uses STM32F103C8T6 as control core and small integration control driver circuit module and solve the problem of increased number of control node and low cost. Based on queue theory and UCOS II dynamic memory management principle, it optimizes data processing ability of CPU for the CAN communication. The system can achieve good robustness, high real-time performance under low hardware cost, reliable communication, and low power consumption of multi-axis control.