Implementation of multi-axis motion controller by FPGA-based hardware design

Motion Controller based on FPGA hardware platform has been investigated in this paper. Comparing with PC-based motion controller, hardware implemented motion controller has the advantages of low cost, high stability, parallel process, and infinitely reconfigurable ability. The controller has been designed by Verilog Hardware Description Language and implemented on XILINX Spartant3 FPGA development board. In order to verify its practicability and accuracy, the system performance was tested by logic analyzer, digital phosphor oscilloscope, and X-Y -Z hardware platform. This paper uses linear and arc interpolation to make the machinery and equipment in the moving path along the straight and curve tracks, respectively. In addition, this paper also use T -curve and S-curve velocity planning to realize the motion process. The hardware motion can be precisely controlled the moving path well.