An open-loop Sin microstepping driver based on FPGA and the co-simulation of Modelsim and Simulink

This paper presents a Sin microstepping method which can achieve constant torque, accurate position control and eliminate low frequency oscillation. The driver adopts FPGA as core, achieving 256 subdividing and PID control algorithm. This paper uses EDA Simulator Link as a co-simulation tool, which provides an interface between Modelsim and Simulink accelerating the function verification. The co-simulation result verifies the performance of the control driver algorithm.