In the paper,a multi-channel stepper motor control system based on FPGA is proposed.Firstly,the stepper motor trapezoidal acceleration and deceleration algorithm are improved to reduce the complexity of its calculation process.Secondly,the improved algorithm is transplanted on FPGA hardware platform.Finally,the visual operation interface of the host computer and the FPGA control terminal are used.A set of flexible control system is built,so that the parameters can be updated in real time on the host computer.The final experiment results show that the control system can accurately control the start-stop frequency of the motor,the frequency error of each stage is within 2%,and the phenomenon of out-of-step and overshoot will not occur.
Key words
FPGA /
acceleration and deceleration algorithm /
the multi-channel stepper motor
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