The diversity of motor controllers in terms of drive methods, feedback acquisition, and control strategies leads engineers to waste a lot of time and effort in building the underlying interfaces and functional module interactions for mechatronic system design. The FPGA design of general control of the stepper motor based on the factory method pattern splits the general control functions into relatively independent sub-functions such as communication expansion, task scheduling, feedback acquisition, control expansion, on/off control, loop distribution, and drive binding. It maps functional requirements to each sub-factory class according to the design thinking of dependency inversion, realizing the decoupling of basic control attributes and complex control strategies. Therefore, it speeds up the software development and improves the portability of the program.
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