SDAA075 October   2025 CC2340R5

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 CC2340R5
    2. 1.2 DRV8329A
    3. 1.3 BLDC Motor
  5. 2BLDC Hardware
    1. 2.1 Hardware Setup
      1. 2.1.1 DRV8329AEVM Settings
    2. 2.2 Connection Diagram
  6. 3Running the Example
    1. 3.1 Dependencies
    2. 3.2 Loading Firmware
    3. 3.3 Motor Connection Test
    4. 3.4 BLDC Motor Hall Sensored Trap Operation With Bluetooth® LE
      1. 3.4.1 SimpleLink™ Connect Phone Application
  7. 4Firmware Design
    1. 4.1 Code Flow Description
    2. 4.2 Customized TI Drivers
      1. 4.2.1 PWM
      2. 4.2.2 ADCBuf
      3. 4.2.3 Power
    3. 4.3 Application Events
    4. 4.4 Commutation Table
    5. 4.5 Motor Acceleration
    6. 4.6 ADC Operations
    7. 4.7 Spin Detect Feature
    8. 4.8 Reporting Statistics
    9. 4.9 Bluetooth® LE Stack
  8. 5Tests and Results
  9. 6Summary
  10. 7References

4.8 Reporting Statistics

Each RPM_INTERVAL, µs, statistics are updated based on the counts of the respective subprocesses. The statistics currently enabled include the CPU load as a percentage (cpuLoad) and the RPM in units of revolutions per minute (rpmValue). Another option is the total ADCBuf measurements taken per second (adcTotal). These are reported to the user as determined by the UART or Bluetooth LE interfaces, but can also be viewed inside the Expressions Window of an active debug session. When using a motor capable reaching higher than around 25k RPM, take caution about how statistics are reported as can interrupt the motor drive commutations as this can create a fault (indicated by the DRV8329A shutting down motor motion and driving low the nFAULT pin input to the CC2340R5). Thus, TI recommends that the data being reported is as short and concise through Bluetooth LE for the application.