SDAA111 October   2025 CC2340R5

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 CC2340R5
    2. 1.2 Stepper motor
  5. 2Stepper Motor Hardware
    1. 2.1 Hardware setup
    2. 2.2 DRV8411EVM settings
    3. 2.3 Connection Diagram
  6. 3Running the Example
    1. 3.1 Dependencies
    2. 3.2 Loading Firmware
    3. 3.3 Local Stepper Motor Control
    4. 3.4 Remote Control Using Proprietary RF
  7. 4Firmware Design
    1. 4.1 Code Flow Description
    2. 4.2 ADCBuf
    3. 4.3 Power
    4. 4.4 Application Events
    5. 4.5 Step Table
    6. 4.6 Fault Detection Pin
  8. 5Tests and Results
  9. 6Summary
  10. 7References

1.2 Stepper motor

A stepper motor is a brushless DC motor which uses precise steps to allow for accurate positioning. It accomplishes this by aligning the motor's rotor with the stator's poles through a sequence of energizing electromagnetic coils in a prepared sequence (i.e. step). Each unique stepper motor has a step angle determined through its characteristics, alongside the recommended voltage and phase amperage which should be used to achieve the expected torque.

https://a.pololu-files.com/picture/0J2281.1200.jpg?e93a943e14fb61b3acfb39dbc6c7496b Figure 1-2 Stepper Motor