STM32WB55 SSM - STM32CubeIDE BLE HRS(Heart Rate Service) 테스트

BLE Service중 간단하면서 ST BLE앱에서 쉽게 테스트 해 볼수 있는 Heart Rate Service 예제를 테스트 해보자.

STM32_WPAN 폴더에 HRS 관련 기능 구현이 되어있다.

타이머 인터럽트를 생성해서 주기적으로 심박수 측정 결과를 보내는 구조이다.

void HRSAPP_Init(void)
{
  UTIL_SEQ_RegTask( 1<< CFG_TASK_MEAS_REQ_ID, UTIL_SEQ_RFU, HRSAPP_Measurement );
/* USER CODE BEGIN HRSAPP_Init */
  /**
   * Set Body Sensor Location
   */
  HRSAPP_Context.ResetEnergyExpended = 0;
  HRSAPP_Context.BodySensorLocationChar = HRS_BODY_SENSOR_LOCATION_HAND;
  HRS_UpdateChar(SENSOR_LOCATION_UUID, (uint8_t *)&HRSAPP_Context.BodySensorLocationChar);
  /**
   * Set Flags for measurement value
   */
  HRSAPP_Context.MeasurementvalueChar.Flags = ( HRS_HRM_VALUE_FORMAT_UINT16      | 
                                                  HRS_HRM_SENSOR_CONTACTS_PRESENT   | 
                                                  HRS_HRM_SENSOR_CONTACTS_SUPPORTED |
                                                  HRS_HRM_ENERGY_EXPENDED_PRESENT  |
                                                  HRS_HRM_RR_INTERVAL_PRESENT );
#if (BLE_CFG_HRS_ENERGY_EXPENDED_INFO_FLAG != 0)
  if(HRSAPP_Context.MeasurementvalueChar.Flags & HRS_HRM_ENERGY_EXPENDED_PRESENT)
    HRSAPP_Context.MeasurementvalueChar.EnergyExpended = 10;
#endif
  
#if (BLE_CFG_HRS_ENERGY_RR_INTERVAL_FLAG != 0)
  if(HRSAPP_Context.MeasurementvalueChar.Flags & HRS_HRM_RR_INTERVAL_PRESENT)
  {
    uint8_t i;
    
    HRSAPP_Context.MeasurementvalueChar.NbreOfValidRRIntervalValues = BLE_CFG_HRS_ENERGY_RR_INTERVAL_FLAG;
    for(i = 0; i < BLE_CFG_HRS_ENERGY_RR_INTERVAL_FLAG; i++)
      HRSAPP_Context.MeasurementvalueChar.aRRIntervalValues[i] = 1024;
  }
#endif
  
  /**
   * Create timer for Heart Rate Measurement
   */
  HW_TS_Create(CFG_TIM_PROC_ID_ISR, &(HRSAPP_Context.TimerMeasurement_Id), hw_ts_Repeated, HrMeas);
/* USER CODE END HRSAPP_Init */
  return;
}
static void HRSAPP_Measurement(void)
{
/* USER CODE BEGIN HRSAPP_Measurement */
  uint32_t measurement;
  measurement = ((HRSAPP_Read_RTC_SSR_SS()) & 0x07) + 65;
  HRSAPP_Context.MeasurementvalueChar.MeasurementValue = measurement;
#if (BLE_CFG_HRS_ENERGY_EXPENDED_INFO_FLAG != 0)
  if((HRSAPP_Context.MeasurementvalueChar.Flags & HRS_HRM_ENERGY_EXPENDED_PRESENT) &&
     (HRSAPP_Context.ResetEnergyExpended == 0))
    HRSAPP_Context.MeasurementvalueChar.EnergyExpended += 5;
  else if(HRSAPP_Context.ResetEnergyExpended == 1)
    HRSAPP_Context.ResetEnergyExpended = 0;
#endif
  HRS_UpdateChar(HEART_RATE_MEASURMENT_UUID, (uint8_t *)&HRSAPP_Context.MeasurementvalueChar);
/* USER CODE END HRSAPP_Measurement */
  return;
}
static void HrMeas( void )
{
  /**
   * The code shall be executed in the background as aci command may be sent
   * The background is the only place where the application can make sure a new aci command
   * is not sent if there is a pending one
   */
  UTIL_SEQ_SetTask( 1<<CFG_TASK_MEAS_REQ_ID, CFG_SCH_PRIO_0);
/* USER CODE BEGIN HrMeas */
/* USER CODE END HrMeas */
  return;
}

프로글램 다운로드후 ST BLE ToolBox 앱에서 검색하면 HRSTM으로 인식이 된다.