/**
* @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;
}
/**
* @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;
}
/**
* @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;
}
/**
* @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;
}
/**
* @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;
}
/**
* @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;
}
