Example #1
0
/**
  * @brief  Starts the LPTIM in Set once mode.
  * @param  hlptim : LPTIM handle
  * @param  Period : Specifies the Autoreload value.
  *         This parameter must be a value between 0x0000 and 0xFFFF.
  * @param  Pulse : Specifies the compare value.
  *         This parameter must be a value between 0x0000 and 0xFFFF.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_LPTIM_SetOnce_Start(LPTIM_HandleTypeDef *hlptim, uint32_t Period, uint32_t Pulse)
{
  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
  assert_param(IS_LPTIM_PERIOD(Period));
  assert_param(IS_LPTIM_PULSE(Pulse));
               
  /* Set the LPTIM state */
  hlptim->State= HAL_LPTIM_STATE_BUSY;
  
  /* Set WAVE bit to enable the set once mode */
  hlptim->Instance->CFGR |= LPTIM_CFGR_WAVE;
  
  /* Enable the Peripheral */
  __HAL_LPTIM_ENABLE(hlptim);
  
  /* Load the period value in the autoreload register */
  __HAL_LPTIM_AUTORELOAD_SET(hlptim, Period);
  
  /* Load the pulse value in the compare register */
  __HAL_LPTIM_COMPARE_SET(hlptim, Pulse);
  
  /* Start timer in continuous mode */
  __HAL_LPTIM_START_SINGLE(hlptim);
    
  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}
Example #2
0
/**
  * @brief  Starts the Counter mode.
  * @param  hlptim : LPTIM handle
  * @param  Period : Specifies the Autoreload value.
  *         This parameter must be a value between 0x0000 and 0xFFFF.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_LPTIM_Counter_Start(LPTIM_HandleTypeDef *hlptim, uint32_t Period)
{
  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
  assert_param(IS_LPTIM_PERIOD(Period));
               
  /* Set the LPTIM state */
  hlptim->State= HAL_LPTIM_STATE_BUSY;
  
  /* If clock source is not ULPTIM clock and counter source is external, then it must not be prescaled */
  if((hlptim->Init.Clock.Source != LPTIM_CLOCKSOURCE_ULPTIM) && (hlptim->Init.CounterSource == LPTIM_COUNTERSOURCE_EXTERNAL))
  {
    /* Check if clock is prescaled */
    assert_param(IS_LPTIM_CLOCK_PRESCALERDIV1(hlptim->Init.Clock.Prescaler));
    /* Set clock prescaler to 0 */
    hlptim->Instance->CFGR &= ~LPTIM_CFGR_PRESC;
  }

  /* Enable the Peripheral */
  __HAL_LPTIM_ENABLE(hlptim);
  
  /* Load the period value in the autoreload register */
  __HAL_LPTIM_AUTORELOAD_SET(hlptim, Period);
  
  /* Start timer in continuous mode */
  __HAL_LPTIM_START_CONTINUOUS(hlptim);
    
  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}
Example #3
0
/**
  * @brief  Starts the Timeout function in interrupt mode. The first trigger 
  *         event will start the timer, any successive trigger event will reset
  *         the counter and the timer restarts.
  * @param  hlptim : LPTIM handle
  * @param  Period : Specifies the Autoreload value.
  *         This parameter must be a value between 0x0000 and 0xFFFF.
  * @param  Timeout : Specifies the TimeOut value to rest the counter.
  *         This parameter must be a value between 0x0000 and 0xFFFF.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_LPTIM_TimeOut_Start_IT(LPTIM_HandleTypeDef *hlptim, uint32_t Period, uint32_t Timeout)
{
  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
  assert_param(IS_LPTIM_PERIOD(Period));
  assert_param(IS_LPTIM_PULSE(Timeout));
               
  /* Set the LPTIM state */
  hlptim->State= HAL_LPTIM_STATE_BUSY;
  
  /* Set TIMOUT bit to enable the timeout function */
  hlptim->Instance->CFGR |= LPTIM_CFGR_TIMOUT;  
  
  /* Enable Compare match interrupt */
  __HAL_LPTIM_ENABLE_IT(hlptim, LPTIM_IT_CMPM);
  
  /* Enable the Peripheral */
  __HAL_LPTIM_ENABLE(hlptim);
  
  /* Load the period value in the autoreload register */
  __HAL_LPTIM_AUTORELOAD_SET(hlptim, Period);
  
  /* Load the Timeout value in the compare register */
  __HAL_LPTIM_COMPARE_SET(hlptim, Timeout);
  
  /* Start timer in continuous mode */
  __HAL_LPTIM_START_CONTINUOUS(hlptim);
    
  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}
Example #4
0
/**
  * @brief  Starts the Encoder interface in interrupt mode.
  * @param  hlptim : LPTIM handle
  * @param  Period : Specifies the Autoreload value.
  *         This parameter must be a value between 0x0000 and 0xFFFF.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_LPTIM_Encoder_Start_IT(LPTIM_HandleTypeDef *hlptim, uint32_t Period)
{
  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
  assert_param(IS_LPTIM_PERIOD(Period));
               
  /* Set the LPTIM state */
  hlptim->State= HAL_LPTIM_STATE_BUSY;
 
  /* Set ENC bit to enable the encoder interface */
  hlptim->Instance->CFGR |= LPTIM_CFGR_ENC;
  
  /* Enable "switch to down direction" interrupt */
  __HAL_LPTIM_ENABLE_INTERRUPT(hlptim, LPTIM_IT_DOWN);
  
  /* Enable "switch to up direction" interrupt */
  __HAL_LPTIM_ENABLE_INTERRUPT(hlptim, LPTIM_IT_UP);  

  /* Enable the Peripheral */
  __HAL_LPTIM_ENABLE(hlptim);
  
  /* Load the period value in the autoreload register */
  __HAL_LPTIM_AUTORELOAD_SET(hlptim, Period);
  
  /* Start timer in continuous mode */
  __HAL_LPTIM_START_CONTINUOUS(hlptim);
    
  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}
Example #5
0
/**
  * @brief  Starts the Encoder interface in interrupt mode.
  * @param  hlptim : LPTIM handle
  * @param  Period : Specifies the Autoreload value.
  *         This parameter must be a value between 0x0000 and 0xFFFF.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_LPTIM_Encoder_Start_IT(LPTIM_HandleTypeDef *hlptim, uint32_t Period)
{
  uint32_t tmpcfgr = 0;
  
  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
  assert_param(IS_LPTIM_PERIOD(Period));
  assert_param(hlptim->Init.Clock.Source == LPTIM_CLOCKSOURCE_APBCLOCK_LPOSC);
  assert_param(hlptim->Init.Clock.Prescaler == LPTIM_PRESCALER_DIV1);
  assert_param(IS_LPTIM_CLOCK_POLARITY(hlptim->Init.UltraLowPowerClock.Polarity));
  
  /* Set the LPTIM state */
  hlptim->State= HAL_LPTIM_STATE_BUSY;
  
  /* Configure edge sensitivity for encoder mode */
  /* Get the LPTIMx CFGR value */
  tmpcfgr = hlptim->Instance->CFGR;
  
  /* Clear CKPOL bits */
  tmpcfgr &= (uint32_t)(~LPTIM_CFGR_CKPOL);
  
  /* Set Input polarity */
  tmpcfgr |=  hlptim->Init.UltraLowPowerClock.Polarity;
  
  /* Write to LPTIMx CFGR */
  hlptim->Instance->CFGR = tmpcfgr;
 
  /* Set ENC bit to enable the encoder interface */
  hlptim->Instance->CFGR |= LPTIM_CFGR_ENC;
  
  /* Enable "switch to down direction" interrupt */
  __HAL_LPTIM_ENABLE_IT(hlptim, LPTIM_IT_DOWN);
  
  /* Enable "switch to up direction" interrupt */
  __HAL_LPTIM_ENABLE_IT(hlptim, LPTIM_IT_UP);  

  /* Enable the Peripheral */
  __HAL_LPTIM_ENABLE(hlptim);
  
  /* Load the period value in the autoreload register */
  __HAL_LPTIM_AUTORELOAD_SET(hlptim, Period);
  
  /* Start timer in continuous mode */
  __HAL_LPTIM_START_CONTINUOUS(hlptim);
    
  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}
Example #6
0
/**
  * @brief  Starts the LPTIM Set once mode in interrupt mode.
  * @param  hlptim : LPTIM handle
  * @param  Period : Specifies the Autoreload value.
  *         This parameter must be a value between 0x0000 and 0xFFFF.
  * @param  Pulse : Specifies the compare value.
  *         This parameter must be a value between 0x0000 and 0xFFFF.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_LPTIM_SetOnce_Start_IT(LPTIM_HandleTypeDef *hlptim, uint32_t Period, uint32_t Pulse)
{
  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
  assert_param(IS_LPTIM_PERIOD(Period));
  assert_param(IS_LPTIM_PULSE(Pulse));
               
  /* Set the LPTIM state */
  hlptim->State= HAL_LPTIM_STATE_BUSY;
  
  /* Set WAVE bit to enable the set once mode */
  hlptim->Instance->CFGR |= LPTIM_CFGR_WAVE;
  
  /* Enable Autoreload write complete interrupt */
  __HAL_LPTIM_ENABLE_IT(hlptim, LPTIM_IT_ARROK);
  
  /* Enable Compare write complete interrupt */
  __HAL_LPTIM_ENABLE_IT(hlptim, LPTIM_IT_CMPOK);
  
  /* Enable Autoreload match interrupt */
  __HAL_LPTIM_ENABLE_IT(hlptim, LPTIM_IT_ARRM);
  
  /* Enable Compare match interrupt */
  __HAL_LPTIM_ENABLE_IT(hlptim, LPTIM_IT_CMPM);
  
  /* If external trigger source is used, then enable external trigger interrupt */
  if ((hlptim->Init.Trigger.Source) !=  LPTIM_TRIGSOURCE_SOFTWARE)
  {
    /* Enable external trigger interrupt */
    __HAL_LPTIM_ENABLE_IT(hlptim, LPTIM_IT_EXTTRIG);
  }  
  
  /* Enable the Peripheral */
  __HAL_LPTIM_ENABLE(hlptim);
  
  /* Load the period value in the autoreload register */
  __HAL_LPTIM_AUTORELOAD_SET(hlptim, Period);
  
  /* Load the pulse value in the compare register */
  __HAL_LPTIM_COMPARE_SET(hlptim, Pulse);
  
  /* Start timer in continuous mode */
  __HAL_LPTIM_START_SINGLE(hlptim);
    
  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}