7. Task 7 Stepper Motor (week 9)

• Objective

  • Revisit the knowledge points that we have studied.
  • Get to know the peripheral modules (Pmod) of Nexys4 DDR
  • Get to know the working principle of the step motor
  • Design a drive circuit for the step motor
  • Implement a drive circuit on the Nexys4 DDR FPGA board

7.1. Knowledge Points Revisited

• Hierarchy design and Structure Style Modeling
• Two segment coding style

• Combinational circuit design

  • Decoder:

    • 2-to-4 decoder

• Sequential circuit design

  • Counter
  • Frequency divider

• Parameterized Design

  • Generic constant
  • Array attribute
  • Unconstrained array