stm32f7xx_hal_lptim.c

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/* Includes ------------------------------------------------------------------*/
#include "stm32f7xx_hal.h"

#ifdef HAL_LPTIM_MODULE_ENABLED
/* Private types -------------------------------------------------------------*/
/* Private defines -----------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/* Exported functions ---------------------------------------------------------*/
HAL_StatusTypeDef HAL_LPTIM_Init(LPTIM_HandleTypeDef *hlptim)
{
  uint32_t tmpcfgr = 0;

  /* Check the LPTIM handle allocation */
  if(hlptim == NULL)
  {
    return HAL_ERROR;
  }

  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
  
  assert_param(IS_LPTIM_CLOCK_SOURCE(hlptim->Init.Clock.Source));
  assert_param(IS_LPTIM_CLOCK_PRESCALER(hlptim->Init.Clock.Prescaler));  
  if ((hlptim->Init.Clock.Source) ==  LPTIM_CLOCKSOURCE_ULPTIM)
  {
    assert_param(IS_LPTIM_CLOCK_POLARITY(hlptim->Init.UltraLowPowerClock.Polarity));
    assert_param(IS_LPTIM_CLOCK_SAMPLE_TIME(hlptim->Init.UltraLowPowerClock.SampleTime));
  }  
  assert_param(IS_LPTIM_TRG_SOURCE(hlptim->Init.Trigger.Source));
  if ((hlptim->Init.Trigger.Source) !=  LPTIM_TRIGSOURCE_SOFTWARE)
  {
    assert_param(IS_LPTIM_TRIG_SAMPLE_TIME(hlptim->Init.Trigger.SampleTime));
    assert_param(IS_LPTIM_EXT_TRG_POLARITY(hlptim->Init.Trigger.ActiveEdge));
  }  
  assert_param(IS_LPTIM_OUTPUT_POLARITY(hlptim->Init.OutputPolarity));  
  assert_param(IS_LPTIM_UPDATE_MODE(hlptim->Init.UpdateMode));
  assert_param(IS_LPTIM_COUNTER_SOURCE(hlptim->Init.CounterSource));
  
  if(hlptim->State == HAL_LPTIM_STATE_RESET)
  {
    /* Allocate lock resource and initialize it */
    hlptim->Lock = HAL_UNLOCKED;
    /* Init the low level hardware */
    HAL_LPTIM_MspInit(hlptim);
  }
  
  /* Change the LPTIM state */
  hlptim->State = HAL_LPTIM_STATE_BUSY;
  
  /* Get the LPTIMx CFGR value */
  tmpcfgr = hlptim->Instance->CFGR;
  
  if ((hlptim->Init.Clock.Source) ==  LPTIM_CLOCKSOURCE_ULPTIM)
  {
    tmpcfgr &= (uint32_t)(~(LPTIM_CFGR_CKPOL | LPTIM_CFGR_CKFLT));
  }
  if ((hlptim->Init.Trigger.Source) !=  LPTIM_TRIGSOURCE_SOFTWARE)
  {
    tmpcfgr &= (uint32_t)(~ (LPTIM_CFGR_TRGFLT | LPTIM_CFGR_TRIGSEL));
  }
    
  /* Clear CKSEL, PRESC, TRIGEN, TRGFLT, WAVPOL, PRELOAD & COUNTMODE bits */
  tmpcfgr &= (uint32_t)(~(LPTIM_CFGR_CKSEL | LPTIM_CFGR_TRIGEN | LPTIM_CFGR_PRELOAD |
                          LPTIM_CFGR_WAVPOL | LPTIM_CFGR_PRESC | LPTIM_CFGR_COUNTMODE ));
  
  /* Set initialization parameters */
  tmpcfgr |= (hlptim->Init.Clock.Source    |
              hlptim->Init.Clock.Prescaler |
              hlptim->Init.OutputPolarity  |
              hlptim->Init.UpdateMode      |
              hlptim->Init.CounterSource);
  
  if ((hlptim->Init.Clock.Source) ==  LPTIM_CLOCKSOURCE_ULPTIM)
  {
    tmpcfgr |=  (hlptim->Init.UltraLowPowerClock.Polarity |
                hlptim->Init.UltraLowPowerClock.SampleTime);
  } 
  
  if ((hlptim->Init.Trigger.Source) !=  LPTIM_TRIGSOURCE_SOFTWARE)
  {
    /* Enable External trigger and set the trigger source */
    tmpcfgr |= (hlptim->Init.Trigger.Source     |
                hlptim->Init.Trigger.ActiveEdge |
                hlptim->Init.Trigger.SampleTime);
  }
  
  /* Write to LPTIMx CFGR */
  hlptim->Instance->CFGR = tmpcfgr;

  /* Change the LPTIM state */
  hlptim->State = HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}

HAL_StatusTypeDef HAL_LPTIM_DeInit(LPTIM_HandleTypeDef *hlptim)
{
  /* Check the LPTIM handle allocation */
  if(hlptim == NULL)
  {
    return HAL_ERROR;
  }
  
  /* Change the LPTIM state */
  hlptim->State = HAL_LPTIM_STATE_BUSY;
  
  /* Disable the LPTIM Peripheral Clock */
  __HAL_LPTIM_DISABLE(hlptim);
  
  /* DeInit the low level hardware: CLOCK, NVIC.*/
  HAL_LPTIM_MspDeInit(hlptim);
  
  /* Change the LPTIM state */
  hlptim->State = HAL_LPTIM_STATE_RESET;
  
  /* Release Lock */
  __HAL_UNLOCK(hlptim);
  
  /* Return function status */
  return HAL_OK;
}

__weak void HAL_LPTIM_MspInit(LPTIM_HandleTypeDef *hlptim)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hlptim);
  
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_LPTIM_MspInit could be implemented in the user file
   */
}

__weak void HAL_LPTIM_MspDeInit(LPTIM_HandleTypeDef *hlptim)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hlptim);
  
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_LPTIM_MspDeInit could be implemented in the user file
   */
}

HAL_StatusTypeDef HAL_LPTIM_PWM_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;
 
  /* Reset WAVE bit to set PWM 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_CONTINUOUS(hlptim);
    
  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}

HAL_StatusTypeDef HAL_LPTIM_PWM_Stop(LPTIM_HandleTypeDef *hlptim)
{
  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
               
  /* Set the LPTIM state */
  hlptim->State= HAL_LPTIM_STATE_BUSY;
  
  /* Disable the Peripheral */
  __HAL_LPTIM_DISABLE(hlptim);

  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}

HAL_StatusTypeDef HAL_LPTIM_PWM_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;
 
  /* Reset WAVE bit to set PWM 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_CONTINUOUS(hlptim);
    
  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}

HAL_StatusTypeDef HAL_LPTIM_PWM_Stop_IT(LPTIM_HandleTypeDef *hlptim)
{
  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
               
  /* Set the LPTIM state */
  hlptim->State= HAL_LPTIM_STATE_BUSY;
  
  /* Disable the Peripheral */
  __HAL_LPTIM_DISABLE(hlptim);
  
    /* Disable Autoreload write complete interrupt */
  __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_ARROK);
  
  /* Disable Compare write complete interrupt */
  __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_CMPOK);
  
  /* Disable Autoreload match interrupt */
  __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_ARRM);
  
  /* Disable Compare match interrupt */
  __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_CMPM);
  
  /* If external trigger source is used, then disable external trigger interrupt */
  if ((hlptim->Init.Trigger.Source) !=  LPTIM_TRIGSOURCE_SOFTWARE)
  {
    /* Disable external trigger interrupt */
    __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_EXTTRIG);
  }  

  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}

HAL_StatusTypeDef HAL_LPTIM_OnePulse_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;
  
  /* Reset WAVE bit to set one pulse 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;
}

HAL_StatusTypeDef HAL_LPTIM_OnePulse_Stop(LPTIM_HandleTypeDef *hlptim)
{
  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
               
  /* Set the LPTIM state */
  hlptim->State= HAL_LPTIM_STATE_BUSY;
  
  /* Disable the Peripheral */
  __HAL_LPTIM_DISABLE(hlptim);

  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}

HAL_StatusTypeDef HAL_LPTIM_OnePulse_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;
  
  /* Reset WAVE bit to set one pulse 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;
}

HAL_StatusTypeDef HAL_LPTIM_OnePulse_Stop_IT(LPTIM_HandleTypeDef *hlptim)
{
  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
               
  /* Set the LPTIM state */
  hlptim->State= HAL_LPTIM_STATE_BUSY;
  
  /* Disable the Peripheral */
  __HAL_LPTIM_DISABLE(hlptim);
  
  /* Disable Autoreload write complete interrupt */
  __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_ARROK);
  
  /* Disable Compare write complete interrupt */
  __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_CMPOK);
  
  /* Disable Autoreload match interrupt */
  __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_ARRM);
  
  /* Disable Compare match interrupt */
  __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_CMPM);
  
  /* If external trigger source is used, then disable external trigger interrupt */
  if ((hlptim->Init.Trigger.Source) !=  LPTIM_TRIGSOURCE_SOFTWARE)
  {
    /* Disable external trigger interrupt */
    __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_EXTTRIG);
  }
  
  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}

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;
}

HAL_StatusTypeDef HAL_LPTIM_SetOnce_Stop(LPTIM_HandleTypeDef *hlptim)
{
  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
               
  /* Set the LPTIM state */
  hlptim->State= HAL_LPTIM_STATE_BUSY;
  
  /* Disable the Peripheral */
  __HAL_LPTIM_DISABLE(hlptim);

  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}

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;
}

HAL_StatusTypeDef HAL_LPTIM_SetOnce_Stop_IT(LPTIM_HandleTypeDef *hlptim)
{
  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
               
  /* Set the LPTIM state */
  hlptim->State= HAL_LPTIM_STATE_BUSY;
  
  /* Disable the Peripheral */
  __HAL_LPTIM_DISABLE(hlptim);

  /* Disable Autoreload write complete interrupt */
  __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_ARROK);
  
  /* Disable Compare write complete interrupt */
  __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_CMPOK);
  
  /* Disable Autoreload match interrupt */
  __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_ARRM);
  
  /* Disable Compare match interrupt */
  __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_CMPM);
  
  /* If external trigger source is used, then disable external trigger interrupt */
  if ((hlptim->Init.Trigger.Source) !=  LPTIM_TRIGSOURCE_SOFTWARE)
  {
    /* Disable external trigger interrupt */
    __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_EXTTRIG);
  } 
  
  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}

HAL_StatusTypeDef HAL_LPTIM_Encoder_Start(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;

  /* 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 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;
}

HAL_StatusTypeDef HAL_LPTIM_Encoder_Stop(LPTIM_HandleTypeDef *hlptim)
{
  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
               
  /* Set the LPTIM state */
  hlptim->State= HAL_LPTIM_STATE_BUSY;
  
  /* Disable the Peripheral */
  __HAL_LPTIM_DISABLE(hlptim);
  
  /* Reset ENC bit to disable the encoder interface */
  hlptim->Instance->CFGR &= ~LPTIM_CFGR_ENC;
  
  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}

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;
}

HAL_StatusTypeDef HAL_LPTIM_Encoder_Stop_IT(LPTIM_HandleTypeDef *hlptim)
{
  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
               
  /* Set the LPTIM state */
  hlptim->State= HAL_LPTIM_STATE_BUSY;
  
  /* Disable the Peripheral */
  __HAL_LPTIM_DISABLE(hlptim);
  
  /* Reset ENC bit to disable the encoder interface */
  hlptim->Instance->CFGR &= ~LPTIM_CFGR_ENC;
  
  /* Disable "switch to down direction" interrupt */
  __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_DOWN);
  
  /* Disable "switch to up direction" interrupt */
  __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_UP); 
  
  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}

HAL_StatusTypeDef HAL_LPTIM_TimeOut_Start(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 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;
}

HAL_StatusTypeDef HAL_LPTIM_TimeOut_Stop(LPTIM_HandleTypeDef *hlptim)
{
  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
  
  /* Set the LPTIM state */
  hlptim->State= HAL_LPTIM_STATE_BUSY;
  
  /* Disable the Peripheral */
  __HAL_LPTIM_DISABLE(hlptim);
  
  /* Reset TIMOUT bit to enable the timeout function */
  hlptim->Instance->CFGR &= ~LPTIM_CFGR_TIMOUT;
  
  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}

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;
 
  /* Enable EXTI Line interrupt on the LPTIM Wake-up Timer */
  __HAL_LPTIM_WAKEUPTIMER_EXTI_ENABLE_IT(); 
  
  /* Enable rising edge trigger on the LPTIM Wake-up Timer Exti line */
  __HAL_LPTIM_WAKEUPTIMER_EXTI_ENABLE_RISING_EDGE();
 
  /* 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;
}

HAL_StatusTypeDef HAL_LPTIM_TimeOut_Stop_IT(LPTIM_HandleTypeDef *hlptim)
{
  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
  
  /* Set the LPTIM state */
  hlptim->State= HAL_LPTIM_STATE_BUSY;
  
  /* Disable rising edge trigger on the LPTIM Wake-up Timer Exti line */ 
  __HAL_LPTIM_WAKEUPTIMER_EXTI_DISABLE_RISING_EDGE();
  
  /* Disable EXTI Line interrupt on the LPTIM Wake-up Timer */
  __HAL_LPTIM_WAKEUPTIMER_EXTI_DISABLE_IT(); 
  
  /* Disable the Peripheral */
  __HAL_LPTIM_DISABLE(hlptim);
  
  /* Reset TIMOUT bit to enable the timeout function */
  hlptim->Instance->CFGR &= ~LPTIM_CFGR_TIMOUT;
  
  /* Disable Compare match interrupt */
  __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_CMPM);
  
  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}

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;
}

HAL_StatusTypeDef HAL_LPTIM_Counter_Stop(LPTIM_HandleTypeDef *hlptim)
{
  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
  
  /* Set the LPTIM state */
  hlptim->State= HAL_LPTIM_STATE_BUSY;
  
  /* Disable the Peripheral */
  __HAL_LPTIM_DISABLE(hlptim);
  
  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}

HAL_StatusTypeDef HAL_LPTIM_Counter_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;

  /* Enable EXTI Line interrupt on the LPTIM Wake-up Timer */
  __HAL_LPTIM_WAKEUPTIMER_EXTI_ENABLE_IT(); 
  
  /* Enable rising edge trigger on the LPTIM Wake-up Timer Exti line */
  __HAL_LPTIM_WAKEUPTIMER_EXTI_ENABLE_RISING_EDGE();  
  
  /* 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 Autoreload write complete interrupt */
  __HAL_LPTIM_ENABLE_IT(hlptim, LPTIM_IT_ARROK);
  
  /* Enable Autoreload match interrupt */
  __HAL_LPTIM_ENABLE_IT(hlptim, LPTIM_IT_ARRM);
  
  /* 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;
}

HAL_StatusTypeDef HAL_LPTIM_Counter_Stop_IT(LPTIM_HandleTypeDef *hlptim)
{
  /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
  
  /* Set the LPTIM state */
  hlptim->State= HAL_LPTIM_STATE_BUSY;
  
  /* Disable rising edge trigger on the LPTIM Wake-up Timer Exti line */ 
  __HAL_LPTIM_WAKEUPTIMER_EXTI_DISABLE_RISING_EDGE();
  
  /* Disable EXTI Line interrupt on the LPTIM Wake-up Timer */
  __HAL_LPTIM_WAKEUPTIMER_EXTI_DISABLE_IT(); 
  
  /* Disable the Peripheral */
  __HAL_LPTIM_DISABLE(hlptim);
  
  /* Disable Autoreload write complete interrupt */
  __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_ARROK);
  
  /* Disable Autoreload match interrupt */
  __HAL_LPTIM_DISABLE_IT(hlptim, LPTIM_IT_ARRM);
  
  /* Change the TIM state*/
  hlptim->State= HAL_LPTIM_STATE_READY;
  
  /* Return function status */
  return HAL_OK;
}

uint32_t HAL_LPTIM_ReadCounter(LPTIM_HandleTypeDef *hlptim)
{
    /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
  
  return (hlptim->Instance->CNT);
}

uint32_t HAL_LPTIM_ReadAutoReload(LPTIM_HandleTypeDef *hlptim)
{
    /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
  
  return (hlptim->Instance->ARR);
}

uint32_t HAL_LPTIM_ReadCompare(LPTIM_HandleTypeDef *hlptim)
{
    /* Check the parameters */
  assert_param(IS_LPTIM_INSTANCE(hlptim->Instance));
  
  return (hlptim->Instance->CMP);
}

void HAL_LPTIM_IRQHandler(LPTIM_HandleTypeDef *hlptim)
{
  /* Compare match interrupt */
  if(__HAL_LPTIM_GET_FLAG(hlptim, LPTIM_FLAG_CMPM) != RESET)
    {
    if(__HAL_LPTIM_GET_IT_SOURCE(hlptim, LPTIM_IT_CMPM) !=RESET)
        {
      /* Clear Compare match flag */
      __HAL_LPTIM_CLEAR_FLAG(hlptim, LPTIM_FLAG_CMPM);
      /* Compare match Callback */
      HAL_LPTIM_CompareMatchCallback(hlptim);      
    }
  }
  
  /* Autoreload match interrupt */
  if(__HAL_LPTIM_GET_FLAG(hlptim, LPTIM_FLAG_ARRM) != RESET)
    {
    if(__HAL_LPTIM_GET_IT_SOURCE(hlptim, LPTIM_IT_ARRM) !=RESET)
        {
      /* Clear Autoreload match flag */
      __HAL_LPTIM_CLEAR_FLAG(hlptim, LPTIM_FLAG_ARRM);
      /* Autoreload match Callback */
      HAL_LPTIM_AutoReloadMatchCallback(hlptim);      
    }
  }
  
  /* Trigger detected interrupt */
  if(__HAL_LPTIM_GET_FLAG(hlptim, LPTIM_FLAG_EXTTRIG) != RESET)
    {
    if(__HAL_LPTIM_GET_IT_SOURCE(hlptim, LPTIM_IT_EXTTRIG) !=RESET)
        {
      /* Clear Trigger detected flag */
      __HAL_LPTIM_CLEAR_FLAG(hlptim, LPTIM_FLAG_EXTTRIG);
      /* Trigger detected callback */
      HAL_LPTIM_TriggerCallback(hlptim);      
    }
  }
  
  /* Compare write interrupt */
  if(__HAL_LPTIM_GET_FLAG(hlptim, LPTIM_FLAG_CMPOK) != RESET)
    {
    if(__HAL_LPTIM_GET_IT_SOURCE(hlptim, LPTIM_FLAG_CMPM) !=RESET)
        {
      /* Clear Compare write flag */
      __HAL_LPTIM_CLEAR_FLAG(hlptim, LPTIM_FLAG_CMPOK);
      /* Compare write Callback */
      HAL_LPTIM_CompareWriteCallback(hlptim);      
    }
  }
  
  /* Autoreload write interrupt */
  if(__HAL_LPTIM_GET_FLAG(hlptim, LPTIM_FLAG_ARROK) != RESET)
    {
    if(__HAL_LPTIM_GET_IT_SOURCE(hlptim, LPTIM_IT_ARROK) !=RESET)
        {
      /* Clear Autoreload write flag */
      __HAL_LPTIM_CLEAR_FLAG(hlptim, LPTIM_FLAG_ARROK);
      /* Autoreload write Callback */
      HAL_LPTIM_AutoReloadWriteCallback(hlptim);      
    }
  }
  
  /* Direction counter changed from Down to Up interrupt */
  if(__HAL_LPTIM_GET_FLAG(hlptim, LPTIM_FLAG_UP) != RESET)
    {
    if(__HAL_LPTIM_GET_IT_SOURCE(hlptim, LPTIM_IT_UP) !=RESET)
        {
      /* Clear Direction counter changed from Down to Up flag */
      __HAL_LPTIM_CLEAR_FLAG(hlptim, LPTIM_FLAG_UP);
      /* Direction counter changed from Down to Up Callback */
      HAL_LPTIM_DirectionUpCallback(hlptim);      
    }
  }
  
  /* Direction counter changed from Up to Down interrupt */
  if(__HAL_LPTIM_GET_FLAG(hlptim, LPTIM_FLAG_DOWN) != RESET)
    {
    if(__HAL_LPTIM_GET_IT_SOURCE(hlptim, LPTIM_IT_DOWN) !=RESET)
        {
      /* Clear Direction counter changed from Up to Down flag */
      __HAL_LPTIM_CLEAR_FLAG(hlptim, LPTIM_FLAG_DOWN);
      /* Direction counter changed from Up to Down Callback */
      HAL_LPTIM_DirectionDownCallback(hlptim);      
    }
  }
  
  __HAL_LPTIM_WAKEUPTIMER_EXTI_CLEAR_FLAG();
}

__weak void HAL_LPTIM_CompareMatchCallback(LPTIM_HandleTypeDef *hlptim)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hlptim);
  
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_LPTIM_CompareMatchCallback could be implemented in the user file
   */  
}

__weak void HAL_LPTIM_AutoReloadMatchCallback(LPTIM_HandleTypeDef *hlptim)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hlptim);
  
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_LPTIM_AutoReloadMatchCallback could be implemented in the user file
   */  
}

__weak void HAL_LPTIM_TriggerCallback(LPTIM_HandleTypeDef *hlptim)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hlptim);
  
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_LPTIM_TriggerCallback could be implemented in the user file
   */  
}

__weak void HAL_LPTIM_CompareWriteCallback(LPTIM_HandleTypeDef *hlptim)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hlptim);
  
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_LPTIM_CompareWriteCallback could be implemented in the user file
   */  
}

__weak void HAL_LPTIM_AutoReloadWriteCallback(LPTIM_HandleTypeDef *hlptim)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hlptim);
  
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_LPTIM_AutoReloadWriteCallback could be implemented in the user file
   */  
}

__weak void HAL_LPTIM_DirectionUpCallback(LPTIM_HandleTypeDef *hlptim)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hlptim);
  
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_LPTIM_DirectionUpCallback could be implemented in the user file
   */  
}

__weak void HAL_LPTIM_DirectionDownCallback(LPTIM_HandleTypeDef *hlptim)
{
  /* Prevent unused argument(s) compilation warning */
  UNUSED(hlptim);
  
  /* NOTE : This function Should not be modified, when the callback is needed,
            the HAL_LPTIM_DirectionDownCallback could be implemented in the user file
   */  
}

HAL_LPTIM_StateTypeDef HAL_LPTIM_GetState(LPTIM_HandleTypeDef *hlptim)
{
  return hlptim->State;
}

#endif /* HAL_LPTIM_MODULE_ENABLED */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/