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Technical University of Iasi - Fac. Automatic and
Embedded Computer 		Monday, 4 Feb.,
Time 11: 3
Laboratory work no. 3
  • L3.1 Name:


    • dsPIC DSC - Unipolar stepper motor control



  • L3.1 Overview, purpose.


    • The lab work aims to provide a one-step step-by-step control for the dsPIC DSC. The basic concepts of how to interfacing and generating sequences for precise control of the movement of the motor shaft are studied.


  • L3.3 Resources:

    • DsPIC Starter Kit development system,
    step-by-step motor extension,
    USB interconnect cable,
    MPLAB C30 oscilloscope .


    Schema dsPIC Interface - Stepper Motor


  • L3.4 Program example:


    • Prototype Program
    Guide dsPIC DSC Starter Kit


  • L3.5 Experiment Run / Tracking Mode:


    • MPLAB C30 is punched on the PC using the dsPIC Digital Signal Controller CD;
    • Connect the USB cable between the PC and the dsPIC DSC Starter kit board to transfer the code.
    • Connect the unipolar stepper motor control interface;
    • A Step.c source project is created in a personal directory;
    • Configure MPLAB and the corresponding programmer accordingly;
    • It is intended to get the HEX file and transfer it to the dsPIC DSC Starter Kit;
    • Analyzing files resulting from the compilation process;
    • The correct execution of the program is being monitored;
    • Solving prototype issues;

    1. - Analyze the dsPIC interconnection scheme of the single-pole stepper motor;
    2. - Examine the control signals to drive the engine step by step with the oscilloscope;
    3. - Using the appropriate documentation, analyze the motor current consumption step by step;



  • L3.6 Proposed Issues:


    • 1. Make a program sequence that will allow the motor to rotate in a trigonometric sense;

    2. Make a program that allows you to rotate the engine shaft at maximum speed;

    3. Create a program that will allow the spindle to be rotated step-by-step;

    4. Make a program sequence that will allow you to determine the steps required for a complete rotation.

    5. Make a program that rotates the motor shaft with a 45-degree angle.


  • L3.7 The experiment may be extended to:


    • - Achieving accurate positioning systems;
    - Establishment of vehicle acceleration control systems;
    - manufacture of industrial equipment for mechanical processing;
    - Control of rear-view mirrors; - Computer peripherals;


  • L3.8 Documentary references:



    • © 2019 Fl. Pantilimonescu - Fac. Automation and Computers Iasi