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

4.5 Step Table

Each time the motor timer expires, the step count is incremented and evaluated. If there are no more steps then the ACTION_STOP application event is called. Otherwise, a case statement is used to determine the next iteration to complete the current step for the motor output pins. The number of iterations is dependent on the stepping mode, whether that is FULL_STEP (four iterations) or HALF_STEP_SLOW/ HALF_STEP_FAST (eight iterations). Only one stepping mode can be selected at any time.