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stm32f0xx_hal_tim.c
7433 lines (6389 loc) · 236 KB
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stm32f0xx_hal_tim.c
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/**
******************************************************************************
* @file stm32f0xx_hal_tim.c
* @author MCD Application Team
* @brief TIM HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the Timer (TIM) peripheral:
* + TIM Time Base Initialization
* + TIM Time Base Start
* + TIM Time Base Start Interruption
* + TIM Time Base Start DMA
* + TIM Output Compare/PWM Initialization
* + TIM Output Compare/PWM Channel Configuration
* + TIM Output Compare/PWM Start
* + TIM Output Compare/PWM Start Interruption
* + TIM Output Compare/PWM Start DMA
* + TIM Input Capture Initialization
* + TIM Input Capture Channel Configuration
* + TIM Input Capture Start
* + TIM Input Capture Start Interruption
* + TIM Input Capture Start DMA
* + TIM One Pulse Initialization
* + TIM One Pulse Channel Configuration
* + TIM One Pulse Start
* + TIM Encoder Interface Initialization
* + TIM Encoder Interface Start
* + TIM Encoder Interface Start Interruption
* + TIM Encoder Interface Start DMA
* + Commutation Event configuration with Interruption and DMA
* + TIM OCRef clear configuration
* + TIM External Clock configuration
@verbatim
==============================================================================
##### TIMER Generic features #####
==============================================================================
[..] The Timer features include:
(#) 16-bit up, down, up/down auto-reload counter.
(#) 16-bit programmable prescaler allowing dividing (also on the fly) the
counter clock frequency either by any factor between 1 and 65536.
(#) Up to 4 independent channels for:
(++) Input Capture
(++) Output Compare
(++) PWM generation (Edge and Center-aligned Mode)
(++) One-pulse mode output
(#) Synchronization circuit to control the timer with external signals and to interconnect
several timers together.
(#) Supports incremental encoder for positioning purposes
##### How to use this driver #####
==============================================================================
[..]
(#) Initialize the TIM low level resources by implementing the following functions
depending on the selected feature:
(++) Time Base : HAL_TIM_Base_MspInit()
(++) Input Capture : HAL_TIM_IC_MspInit()
(++) Output Compare : HAL_TIM_OC_MspInit()
(++) PWM generation : HAL_TIM_PWM_MspInit()
(++) One-pulse mode output : HAL_TIM_OnePulse_MspInit()
(++) Encoder mode output : HAL_TIM_Encoder_MspInit()
(#) Initialize the TIM low level resources :
(##) Enable the TIM interface clock using __HAL_RCC_TIMx_CLK_ENABLE();
(##) TIM pins configuration
(+++) Enable the clock for the TIM GPIOs using the following function:
__HAL_RCC_GPIOx_CLK_ENABLE();
(+++) Configure these TIM pins in Alternate function mode using HAL_GPIO_Init();
(#) The external Clock can be configured, if needed (the default clock is the
internal clock from the APBx), using the following function:
HAL_TIM_ConfigClockSource, the clock configuration should be done before
any start function.
(#) Configure the TIM in the desired functioning mode using one of the
Initialization function of this driver:
(++) HAL_TIM_Base_Init: to use the Timer to generate a simple time base
(++) HAL_TIM_OC_Init and HAL_TIM_OC_ConfigChannel: to use the Timer to generate an
Output Compare signal.
(++) HAL_TIM_PWM_Init and HAL_TIM_PWM_ConfigChannel: to use the Timer to generate a
PWM signal.
(++) HAL_TIM_IC_Init and HAL_TIM_IC_ConfigChannel: to use the Timer to measure an
external signal.
(++) HAL_TIM_OnePulse_Init and HAL_TIM_OnePulse_ConfigChannel: to use the Timer
in One Pulse Mode.
(++) HAL_TIM_Encoder_Init: to use the Timer Encoder Interface.
(#) Activate the TIM peripheral using one of the start functions depending from the feature used:
(++) Time Base : HAL_TIM_Base_Start(), HAL_TIM_Base_Start_DMA(), HAL_TIM_Base_Start_IT()
(++) Input Capture : HAL_TIM_IC_Start(), HAL_TIM_IC_Start_DMA(), HAL_TIM_IC_Start_IT()
(++) Output Compare : HAL_TIM_OC_Start(), HAL_TIM_OC_Start_DMA(), HAL_TIM_OC_Start_IT()
(++) PWM generation : HAL_TIM_PWM_Start(), HAL_TIM_PWM_Start_DMA(), HAL_TIM_PWM_Start_IT()
(++) One-pulse mode output : HAL_TIM_OnePulse_Start(), HAL_TIM_OnePulse_Start_IT()
(++) Encoder mode output : HAL_TIM_Encoder_Start(), HAL_TIM_Encoder_Start_DMA(), HAL_TIM_Encoder_Start_IT().
(#) The DMA Burst is managed with the two following functions:
HAL_TIM_DMABurst_WriteStart()
HAL_TIM_DMABurst_ReadStart()
*** Callback registration ***
=============================================
[..]
The compilation define USE_HAL_TIM_REGISTER_CALLBACKS when set to 1
allows the user to configure dynamically the driver callbacks.
[..]
Use Function @ref HAL_TIM_RegisterCallback() to register a callback.
@ref HAL_TIM_RegisterCallback() takes as parameters the HAL peripheral handle,
the Callback ID and a pointer to the user callback function.
[..]
Use function @ref HAL_TIM_UnRegisterCallback() to reset a callback to the default
weak function.
@ref HAL_TIM_UnRegisterCallback takes as parameters the HAL peripheral handle,
and the Callback ID.
[..]
These functions allow to register/unregister following callbacks:
(+) Base_MspInitCallback : TIM Base Msp Init Callback.
(+) Base_MspDeInitCallback : TIM Base Msp DeInit Callback.
(+) IC_MspInitCallback : TIM IC Msp Init Callback.
(+) IC_MspDeInitCallback : TIM IC Msp DeInit Callback.
(+) OC_MspInitCallback : TIM OC Msp Init Callback.
(+) OC_MspDeInitCallback : TIM OC Msp DeInit Callback.
(+) PWM_MspInitCallback : TIM PWM Msp Init Callback.
(+) PWM_MspDeInitCallback : TIM PWM Msp DeInit Callback.
(+) OnePulse_MspInitCallback : TIM One Pulse Msp Init Callback.
(+) OnePulse_MspDeInitCallback : TIM One Pulse Msp DeInit Callback.
(+) Encoder_MspInitCallback : TIM Encoder Msp Init Callback.
(+) Encoder_MspDeInitCallback : TIM Encoder Msp DeInit Callback.
(+) HallSensor_MspInitCallback : TIM Hall Sensor Msp Init Callback.
(+) HallSensor_MspDeInitCallback : TIM Hall Sensor Msp DeInit Callback.
(+) PeriodElapsedCallback : TIM Period Elapsed Callback.
(+) PeriodElapsedHalfCpltCallback : TIM Period Elapsed half complete Callback.
(+) TriggerCallback : TIM Trigger Callback.
(+) TriggerHalfCpltCallback : TIM Trigger half complete Callback.
(+) IC_CaptureCallback : TIM Input Capture Callback.
(+) IC_CaptureHalfCpltCallback : TIM Input Capture half complete Callback.
(+) OC_DelayElapsedCallback : TIM Output Compare Delay Elapsed Callback.
(+) PWM_PulseFinishedCallback : TIM PWM Pulse Finished Callback.
(+) PWM_PulseFinishedHalfCpltCallback : TIM PWM Pulse Finished half complete Callback.
(+) ErrorCallback : TIM Error Callback.
(+) CommutationCallback : TIM Commutation Callback.
(+) CommutationHalfCpltCallback : TIM Commutation half complete Callback.
(+) BreakCallback : TIM Break Callback.
[..]
By default, after the Init and when the state is HAL_TIM_STATE_RESET
all interrupt callbacks are set to the corresponding weak functions:
examples @ref HAL_TIM_TriggerCallback(), @ref HAL_TIM_ErrorCallback().
[..]
Exception done for MspInit and MspDeInit functions that are reset to the legacy weak
functionalities in the Init / DeInit only when these callbacks are null
(not registered beforehand). If not, MspInit or MspDeInit are not null, the Init / DeInit
keep and use the user MspInit / MspDeInit callbacks(registered beforehand)
[..]
Callbacks can be registered / unregistered in HAL_TIM_STATE_READY state only.
Exception done MspInit / MspDeInit that can be registered / unregistered
in HAL_TIM_STATE_READY or HAL_TIM_STATE_RESET state,
thus registered(user) MspInit / DeInit callbacks can be used during the Init / DeInit.
In that case first register the MspInit/MspDeInit user callbacks
using @ref HAL_TIM_RegisterCallback() before calling DeInit or Init function.
[..]
When The compilation define USE_HAL_TIM_REGISTER_CALLBACKS is set to 0 or
not defined, the callback registration feature is not available and all callbacks
are set to the corresponding weak functions.
@endverbatim
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx_hal.h"
/** @addtogroup STM32F0xx_HAL_Driver
* @{
*/
/** @defgroup TIM TIM
* @brief TIM HAL module driver
* @{
*/
#ifdef HAL_TIM_MODULE_ENABLED
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/** @addtogroup TIM_Private_Functions
* @{
*/
static void TIM_OC1_SetConfig(TIM_TypeDef *TIMx, TIM_OC_InitTypeDef *OC_Config);
static void TIM_OC3_SetConfig(TIM_TypeDef *TIMx, TIM_OC_InitTypeDef *OC_Config);
static void TIM_OC4_SetConfig(TIM_TypeDef *TIMx, TIM_OC_InitTypeDef *OC_Config);
static void TIM_TI1_ConfigInputStage(TIM_TypeDef *TIMx, uint32_t TIM_ICPolarity, uint32_t TIM_ICFilter);
static void TIM_TI2_SetConfig(TIM_TypeDef *TIMx, uint32_t TIM_ICPolarity, uint32_t TIM_ICSelection,
uint32_t TIM_ICFilter);
static void TIM_TI2_ConfigInputStage(TIM_TypeDef *TIMx, uint32_t TIM_ICPolarity, uint32_t TIM_ICFilter);
static void TIM_TI3_SetConfig(TIM_TypeDef *TIMx, uint32_t TIM_ICPolarity, uint32_t TIM_ICSelection,
uint32_t TIM_ICFilter);
static void TIM_TI4_SetConfig(TIM_TypeDef *TIMx, uint32_t TIM_ICPolarity, uint32_t TIM_ICSelection,
uint32_t TIM_ICFilter);
static void TIM_ITRx_SetConfig(TIM_TypeDef *TIMx, uint32_t InputTriggerSource);
static void TIM_DMAPeriodElapsedCplt(DMA_HandleTypeDef *hdma);
static void TIM_DMAPeriodElapsedHalfCplt(DMA_HandleTypeDef *hdma);
static void TIM_DMADelayPulseCplt(DMA_HandleTypeDef *hdma);
static void TIM_DMATriggerCplt(DMA_HandleTypeDef *hdma);
static void TIM_DMATriggerHalfCplt(DMA_HandleTypeDef *hdma);
static HAL_StatusTypeDef TIM_SlaveTimer_SetConfig(TIM_HandleTypeDef *htim,
TIM_SlaveConfigTypeDef *sSlaveConfig);
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup TIM_Exported_Functions TIM Exported Functions
* @{
*/
/** @defgroup TIM_Exported_Functions_Group1 TIM Time Base functions
* @brief Time Base functions
*
@verbatim
==============================================================================
##### Time Base functions #####
==============================================================================
[..]
This section provides functions allowing to:
(+) Initialize and configure the TIM base.
(+) De-initialize the TIM base.
(+) Start the Time Base.
(+) Stop the Time Base.
(+) Start the Time Base and enable interrupt.
(+) Stop the Time Base and disable interrupt.
(+) Start the Time Base and enable DMA transfer.
(+) Stop the Time Base and disable DMA transfer.
@endverbatim
* @{
*/
/**
* @brief Initializes the TIM Time base Unit according to the specified
* parameters in the TIM_HandleTypeDef and initialize the associated handle.
* @note Switching from Center Aligned counter mode to Edge counter mode (or reverse)
* requires a timer reset to avoid unexpected direction
* due to DIR bit readonly in center aligned mode.
* Ex: call @ref HAL_TIM_Base_DeInit() before HAL_TIM_Base_Init()
* @param htim TIM Base handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_TIM_Base_Init(TIM_HandleTypeDef *htim)
{
/* Check the TIM handle allocation */
if (htim == NULL)
{
return HAL_ERROR;
}
/* Check the parameters */
assert_param(IS_TIM_INSTANCE(htim->Instance));
assert_param(IS_TIM_COUNTER_MODE(htim->Init.CounterMode));
assert_param(IS_TIM_CLOCKDIVISION_DIV(htim->Init.ClockDivision));
assert_param(IS_TIM_AUTORELOAD_PRELOAD(htim->Init.AutoReloadPreload));
if (htim->State == HAL_TIM_STATE_RESET)
{
/* Allocate lock resource and initialize it */
htim->Lock = HAL_UNLOCKED;
#if (USE_HAL_TIM_REGISTER_CALLBACKS == 1)
/* Reset interrupt callbacks to legacy weak callbacks */
TIM_ResetCallback(htim);
if (htim->Base_MspInitCallback == NULL)
{
htim->Base_MspInitCallback = HAL_TIM_Base_MspInit;
}
/* Init the low level hardware : GPIO, CLOCK, NVIC */
htim->Base_MspInitCallback(htim);
#else
/* Init the low level hardware : GPIO, CLOCK, NVIC */
HAL_TIM_Base_MspInit(htim);
#endif /* USE_HAL_TIM_REGISTER_CALLBACKS */
}
/* Set the TIM state */
htim->State = HAL_TIM_STATE_BUSY;
/* Set the Time Base configuration */
TIM_Base_SetConfig(htim->Instance, &htim->Init);
/* Initialize the DMA burst operation state */
htim->DMABurstState = HAL_DMA_BURST_STATE_READY;
/* Initialize the TIM channels state */
TIM_CHANNEL_STATE_SET_ALL(htim, HAL_TIM_CHANNEL_STATE_READY);
TIM_CHANNEL_N_STATE_SET_ALL(htim, HAL_TIM_CHANNEL_STATE_READY);
/* Initialize the TIM state*/
htim->State = HAL_TIM_STATE_READY;
return HAL_OK;
}
/**
* @brief DeInitializes the TIM Base peripheral
* @param htim TIM Base handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_TIM_Base_DeInit(TIM_HandleTypeDef *htim)
{
/* Check the parameters */
assert_param(IS_TIM_INSTANCE(htim->Instance));
htim->State = HAL_TIM_STATE_BUSY;
/* Disable the TIM Peripheral Clock */
__HAL_TIM_DISABLE(htim);
#if (USE_HAL_TIM_REGISTER_CALLBACKS == 1)
if (htim->Base_MspDeInitCallback == NULL)
{
htim->Base_MspDeInitCallback = HAL_TIM_Base_MspDeInit;
}
/* DeInit the low level hardware */
htim->Base_MspDeInitCallback(htim);
#else
/* DeInit the low level hardware: GPIO, CLOCK, NVIC */
HAL_TIM_Base_MspDeInit(htim);
#endif /* USE_HAL_TIM_REGISTER_CALLBACKS */
/* Change the DMA burst operation state */
htim->DMABurstState = HAL_DMA_BURST_STATE_RESET;
/* Change the TIM channels state */
TIM_CHANNEL_STATE_SET_ALL(htim, HAL_TIM_CHANNEL_STATE_RESET);
TIM_CHANNEL_N_STATE_SET_ALL(htim, HAL_TIM_CHANNEL_STATE_RESET);
/* Change TIM state */
htim->State = HAL_TIM_STATE_RESET;
/* Release Lock */
__HAL_UNLOCK(htim);
return HAL_OK;
}
/**
* @brief Initializes the TIM Base MSP.
* @param htim TIM Base handle
* @retval None
*/
__weak void HAL_TIM_Base_MspInit(TIM_HandleTypeDef *htim)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(htim);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_TIM_Base_MspInit could be implemented in the user file
*/
}
/**
* @brief DeInitializes TIM Base MSP.
* @param htim TIM Base handle
* @retval None
*/
__weak void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef *htim)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(htim);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_TIM_Base_MspDeInit could be implemented in the user file
*/
}
/**
* @brief Starts the TIM Base generation.
* @param htim TIM Base handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_TIM_Base_Start(TIM_HandleTypeDef *htim)
{
uint32_t tmpsmcr;
/* Check the parameters */
assert_param(IS_TIM_INSTANCE(htim->Instance));
/* Check the TIM state */
if (htim->State != HAL_TIM_STATE_READY)
{
return HAL_ERROR;
}
/* Set the TIM state */
htim->State = HAL_TIM_STATE_BUSY;
/* Enable the Peripheral, except in trigger mode where enable is automatically done with trigger */
if (IS_TIM_SLAVE_INSTANCE(htim->Instance))
{
tmpsmcr = htim->Instance->SMCR & TIM_SMCR_SMS;
if (!IS_TIM_SLAVEMODE_TRIGGER_ENABLED(tmpsmcr))
{
__HAL_TIM_ENABLE(htim);
}
}
else
{
__HAL_TIM_ENABLE(htim);
}
/* Return function status */
return HAL_OK;
}
/**
* @brief Stops the TIM Base generation.
* @param htim TIM Base handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_TIM_Base_Stop(TIM_HandleTypeDef *htim)
{
/* Check the parameters */
assert_param(IS_TIM_INSTANCE(htim->Instance));
/* Disable the Peripheral */
__HAL_TIM_DISABLE(htim);
/* Set the TIM state */
htim->State = HAL_TIM_STATE_READY;
/* Return function status */
return HAL_OK;
}
/**
* @brief Starts the TIM Base generation in interrupt mode.
* @param htim TIM Base handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_TIM_Base_Start_IT(TIM_HandleTypeDef *htim)
{
uint32_t tmpsmcr;
/* Check the parameters */
assert_param(IS_TIM_INSTANCE(htim->Instance));
/* Check the TIM state */
if (htim->State != HAL_TIM_STATE_READY)
{
return HAL_ERROR;
}
/* Set the TIM state */
htim->State = HAL_TIM_STATE_BUSY;
/* Enable the TIM Update interrupt */
__HAL_TIM_ENABLE_IT(htim, TIM_IT_UPDATE);
/* Enable the Peripheral, except in trigger mode where enable is automatically done with trigger */
if (IS_TIM_SLAVE_INSTANCE(htim->Instance))
{
tmpsmcr = htim->Instance->SMCR & TIM_SMCR_SMS;
if (!IS_TIM_SLAVEMODE_TRIGGER_ENABLED(tmpsmcr))
{
__HAL_TIM_ENABLE(htim);
}
}
else
{
__HAL_TIM_ENABLE(htim);
}
/* Return function status */
return HAL_OK;
}
/**
* @brief Stops the TIM Base generation in interrupt mode.
* @param htim TIM Base handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_TIM_Base_Stop_IT(TIM_HandleTypeDef *htim)
{
/* Check the parameters */
assert_param(IS_TIM_INSTANCE(htim->Instance));
/* Disable the TIM Update interrupt */
__HAL_TIM_DISABLE_IT(htim, TIM_IT_UPDATE);
/* Disable the Peripheral */
__HAL_TIM_DISABLE(htim);
/* Set the TIM state */
htim->State = HAL_TIM_STATE_READY;
/* Return function status */
return HAL_OK;
}
/**
* @brief Starts the TIM Base generation in DMA mode.
* @param htim TIM Base handle
* @param pData The source Buffer address.
* @param Length The length of data to be transferred from memory to peripheral.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_TIM_Base_Start_DMA(TIM_HandleTypeDef *htim, uint32_t *pData, uint16_t Length)
{
uint32_t tmpsmcr;
/* Check the parameters */
assert_param(IS_TIM_DMA_INSTANCE(htim->Instance));
/* Set the TIM state */
if (htim->State == HAL_TIM_STATE_BUSY)
{
return HAL_BUSY;
}
else if (htim->State == HAL_TIM_STATE_READY)
{
if ((pData == NULL) && (Length > 0U))
{
return HAL_ERROR;
}
else
{
htim->State = HAL_TIM_STATE_BUSY;
}
}
else
{
return HAL_ERROR;
}
/* Set the DMA Period elapsed callbacks */
htim->hdma[TIM_DMA_ID_UPDATE]->XferCpltCallback = TIM_DMAPeriodElapsedCplt;
htim->hdma[TIM_DMA_ID_UPDATE]->XferHalfCpltCallback = TIM_DMAPeriodElapsedHalfCplt;
/* Set the DMA error callback */
htim->hdma[TIM_DMA_ID_UPDATE]->XferErrorCallback = TIM_DMAError ;
/* Enable the DMA channel */
if (HAL_DMA_Start_IT(htim->hdma[TIM_DMA_ID_UPDATE], (uint32_t)pData, (uint32_t)&htim->Instance->ARR, Length) != HAL_OK)
{
/* Return error status */
return HAL_ERROR;
}
/* Enable the TIM Update DMA request */
__HAL_TIM_ENABLE_DMA(htim, TIM_DMA_UPDATE);
/* Enable the Peripheral, except in trigger mode where enable is automatically done with trigger */
if (IS_TIM_SLAVE_INSTANCE(htim->Instance))
{
tmpsmcr = htim->Instance->SMCR & TIM_SMCR_SMS;
if (!IS_TIM_SLAVEMODE_TRIGGER_ENABLED(tmpsmcr))
{
__HAL_TIM_ENABLE(htim);
}
}
else
{
__HAL_TIM_ENABLE(htim);
}
/* Return function status */
return HAL_OK;
}
/**
* @brief Stops the TIM Base generation in DMA mode.
* @param htim TIM Base handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_TIM_Base_Stop_DMA(TIM_HandleTypeDef *htim)
{
/* Check the parameters */
assert_param(IS_TIM_DMA_INSTANCE(htim->Instance));
/* Disable the TIM Update DMA request */
__HAL_TIM_DISABLE_DMA(htim, TIM_DMA_UPDATE);
(void)HAL_DMA_Abort_IT(htim->hdma[TIM_DMA_ID_UPDATE]);
/* Disable the Peripheral */
__HAL_TIM_DISABLE(htim);
/* Set the TIM state */
htim->State = HAL_TIM_STATE_READY;
/* Return function status */
return HAL_OK;
}
/**
* @}
*/
/** @defgroup TIM_Exported_Functions_Group2 TIM Output Compare functions
* @brief TIM Output Compare functions
*
@verbatim
==============================================================================
##### TIM Output Compare functions #####
==============================================================================
[..]
This section provides functions allowing to:
(+) Initialize and configure the TIM Output Compare.
(+) De-initialize the TIM Output Compare.
(+) Start the TIM Output Compare.
(+) Stop the TIM Output Compare.
(+) Start the TIM Output Compare and enable interrupt.
(+) Stop the TIM Output Compare and disable interrupt.
(+) Start the TIM Output Compare and enable DMA transfer.
(+) Stop the TIM Output Compare and disable DMA transfer.
@endverbatim
* @{
*/
/**
* @brief Initializes the TIM Output Compare according to the specified
* parameters in the TIM_HandleTypeDef and initializes the associated handle.
* @note Switching from Center Aligned counter mode to Edge counter mode (or reverse)
* requires a timer reset to avoid unexpected direction
* due to DIR bit readonly in center aligned mode.
* Ex: call @ref HAL_TIM_OC_DeInit() before HAL_TIM_OC_Init()
* @param htim TIM Output Compare handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_TIM_OC_Init(TIM_HandleTypeDef *htim)
{
/* Check the TIM handle allocation */
if (htim == NULL)
{
return HAL_ERROR;
}
/* Check the parameters */
assert_param(IS_TIM_INSTANCE(htim->Instance));
assert_param(IS_TIM_COUNTER_MODE(htim->Init.CounterMode));
assert_param(IS_TIM_CLOCKDIVISION_DIV(htim->Init.ClockDivision));
assert_param(IS_TIM_AUTORELOAD_PRELOAD(htim->Init.AutoReloadPreload));
if (htim->State == HAL_TIM_STATE_RESET)
{
/* Allocate lock resource and initialize it */
htim->Lock = HAL_UNLOCKED;
#if (USE_HAL_TIM_REGISTER_CALLBACKS == 1)
/* Reset interrupt callbacks to legacy weak callbacks */
TIM_ResetCallback(htim);
if (htim->OC_MspInitCallback == NULL)
{
htim->OC_MspInitCallback = HAL_TIM_OC_MspInit;
}
/* Init the low level hardware : GPIO, CLOCK, NVIC */
htim->OC_MspInitCallback(htim);
#else
/* Init the low level hardware : GPIO, CLOCK, NVIC and DMA */
HAL_TIM_OC_MspInit(htim);
#endif /* USE_HAL_TIM_REGISTER_CALLBACKS */
}
/* Set the TIM state */
htim->State = HAL_TIM_STATE_BUSY;
/* Init the base time for the Output Compare */
TIM_Base_SetConfig(htim->Instance, &htim->Init);
/* Initialize the DMA burst operation state */
htim->DMABurstState = HAL_DMA_BURST_STATE_READY;
/* Initialize the TIM channels state */
TIM_CHANNEL_STATE_SET_ALL(htim, HAL_TIM_CHANNEL_STATE_READY);
TIM_CHANNEL_N_STATE_SET_ALL(htim, HAL_TIM_CHANNEL_STATE_READY);
/* Initialize the TIM state*/
htim->State = HAL_TIM_STATE_READY;
return HAL_OK;
}
/**
* @brief DeInitializes the TIM peripheral
* @param htim TIM Output Compare handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_TIM_OC_DeInit(TIM_HandleTypeDef *htim)
{
/* Check the parameters */
assert_param(IS_TIM_INSTANCE(htim->Instance));
htim->State = HAL_TIM_STATE_BUSY;
/* Disable the TIM Peripheral Clock */
__HAL_TIM_DISABLE(htim);
#if (USE_HAL_TIM_REGISTER_CALLBACKS == 1)
if (htim->OC_MspDeInitCallback == NULL)
{
htim->OC_MspDeInitCallback = HAL_TIM_OC_MspDeInit;
}
/* DeInit the low level hardware */
htim->OC_MspDeInitCallback(htim);
#else
/* DeInit the low level hardware: GPIO, CLOCK, NVIC and DMA */
HAL_TIM_OC_MspDeInit(htim);
#endif /* USE_HAL_TIM_REGISTER_CALLBACKS */
/* Change the DMA burst operation state */
htim->DMABurstState = HAL_DMA_BURST_STATE_RESET;
/* Change the TIM channels state */
TIM_CHANNEL_STATE_SET_ALL(htim, HAL_TIM_CHANNEL_STATE_RESET);
TIM_CHANNEL_N_STATE_SET_ALL(htim, HAL_TIM_CHANNEL_STATE_RESET);
/* Change TIM state */
htim->State = HAL_TIM_STATE_RESET;
/* Release Lock */
__HAL_UNLOCK(htim);
return HAL_OK;
}
/**
* @brief Initializes the TIM Output Compare MSP.
* @param htim TIM Output Compare handle
* @retval None
*/
__weak void HAL_TIM_OC_MspInit(TIM_HandleTypeDef *htim)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(htim);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_TIM_OC_MspInit could be implemented in the user file
*/
}
/**
* @brief DeInitializes TIM Output Compare MSP.
* @param htim TIM Output Compare handle
* @retval None
*/
__weak void HAL_TIM_OC_MspDeInit(TIM_HandleTypeDef *htim)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(htim);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_TIM_OC_MspDeInit could be implemented in the user file
*/
}
/**
* @brief Starts the TIM Output Compare signal generation.
* @param htim TIM Output Compare handle
* @param Channel TIM Channel to be enabled
* This parameter can be one of the following values:
* @arg TIM_CHANNEL_1: TIM Channel 1 selected
* @arg TIM_CHANNEL_2: TIM Channel 2 selected
* @arg TIM_CHANNEL_3: TIM Channel 3 selected
* @arg TIM_CHANNEL_4: TIM Channel 4 selected
* @retval HAL status
*/
HAL_StatusTypeDef HAL_TIM_OC_Start(TIM_HandleTypeDef *htim, uint32_t Channel)
{
uint32_t tmpsmcr;
/* Check the parameters */
assert_param(IS_TIM_CCX_INSTANCE(htim->Instance, Channel));
/* Check the TIM channel state */
if (TIM_CHANNEL_STATE_GET(htim, Channel) != HAL_TIM_CHANNEL_STATE_READY)
{
return HAL_ERROR;
}
/* Set the TIM channel state */
TIM_CHANNEL_STATE_SET(htim, Channel, HAL_TIM_CHANNEL_STATE_BUSY);
/* Enable the Output compare channel */
TIM_CCxChannelCmd(htim->Instance, Channel, TIM_CCx_ENABLE);
if (IS_TIM_BREAK_INSTANCE(htim->Instance) != RESET)
{
/* Enable the main output */
__HAL_TIM_MOE_ENABLE(htim);
}
/* Enable the Peripheral, except in trigger mode where enable is automatically done with trigger */
if (IS_TIM_SLAVE_INSTANCE(htim->Instance))
{
tmpsmcr = htim->Instance->SMCR & TIM_SMCR_SMS;
if (!IS_TIM_SLAVEMODE_TRIGGER_ENABLED(tmpsmcr))
{
__HAL_TIM_ENABLE(htim);
}
}
else
{
__HAL_TIM_ENABLE(htim);
}
/* Return function status */
return HAL_OK;
}
/**
* @brief Stops the TIM Output Compare signal generation.
* @param htim TIM Output Compare handle
* @param Channel TIM Channel to be disabled
* This parameter can be one of the following values:
* @arg TIM_CHANNEL_1: TIM Channel 1 selected
* @arg TIM_CHANNEL_2: TIM Channel 2 selected
* @arg TIM_CHANNEL_3: TIM Channel 3 selected
* @arg TIM_CHANNEL_4: TIM Channel 4 selected
* @retval HAL status
*/
HAL_StatusTypeDef HAL_TIM_OC_Stop(TIM_HandleTypeDef *htim, uint32_t Channel)
{
/* Check the parameters */
assert_param(IS_TIM_CCX_INSTANCE(htim->Instance, Channel));
/* Disable the Output compare channel */
TIM_CCxChannelCmd(htim->Instance, Channel, TIM_CCx_DISABLE);
if (IS_TIM_BREAK_INSTANCE(htim->Instance) != RESET)
{
/* Disable the Main Output */
__HAL_TIM_MOE_DISABLE(htim);
}
/* Disable the Peripheral */
__HAL_TIM_DISABLE(htim);
/* Set the TIM channel state */
TIM_CHANNEL_STATE_SET(htim, Channel, HAL_TIM_CHANNEL_STATE_READY);
/* Return function status */
return HAL_OK;
}
/**
* @brief Starts the TIM Output Compare signal generation in interrupt mode.
* @param htim TIM Output Compare handle
* @param Channel TIM Channel to be enabled
* This parameter can be one of the following values:
* @arg TIM_CHANNEL_1: TIM Channel 1 selected
* @arg TIM_CHANNEL_2: TIM Channel 2 selected
* @arg TIM_CHANNEL_3: TIM Channel 3 selected
* @arg TIM_CHANNEL_4: TIM Channel 4 selected
* @retval HAL status
*/
HAL_StatusTypeDef HAL_TIM_OC_Start_IT(TIM_HandleTypeDef *htim, uint32_t Channel)
{
uint32_t tmpsmcr;
/* Check the parameters */
assert_param(IS_TIM_CCX_INSTANCE(htim->Instance, Channel));
/* Check the TIM channel state */
if (TIM_CHANNEL_STATE_GET(htim, Channel) != HAL_TIM_CHANNEL_STATE_READY)
{
return HAL_ERROR;
}
/* Set the TIM channel state */
TIM_CHANNEL_STATE_SET(htim, Channel, HAL_TIM_CHANNEL_STATE_BUSY);
switch (Channel)
{
case TIM_CHANNEL_1:
{
/* Enable the TIM Capture/Compare 1 interrupt */
__HAL_TIM_ENABLE_IT(htim, TIM_IT_CC1);
break;
}
case TIM_CHANNEL_2:
{
/* Enable the TIM Capture/Compare 2 interrupt */
__HAL_TIM_ENABLE_IT(htim, TIM_IT_CC2);
break;
}
case TIM_CHANNEL_3:
{
/* Enable the TIM Capture/Compare 3 interrupt */
__HAL_TIM_ENABLE_IT(htim, TIM_IT_CC3);
break;
}
case TIM_CHANNEL_4:
{
/* Enable the TIM Capture/Compare 4 interrupt */
__HAL_TIM_ENABLE_IT(htim, TIM_IT_CC4);
break;
}
default:
break;
}
/* Enable the Output compare channel */
TIM_CCxChannelCmd(htim->Instance, Channel, TIM_CCx_ENABLE);
if (IS_TIM_BREAK_INSTANCE(htim->Instance) != RESET)
{
/* Enable the main output */
__HAL_TIM_MOE_ENABLE(htim);
}
/* Enable the Peripheral, except in trigger mode where enable is automatically done with trigger */
if (IS_TIM_SLAVE_INSTANCE(htim->Instance))
{
tmpsmcr = htim->Instance->SMCR & TIM_SMCR_SMS;
if (!IS_TIM_SLAVEMODE_TRIGGER_ENABLED(tmpsmcr))
{
__HAL_TIM_ENABLE(htim);
}
}
else
{
__HAL_TIM_ENABLE(htim);
}
/* Return function status */
return HAL_OK;
}
/**
* @brief Stops the TIM Output Compare signal generation in interrupt mode.
* @param htim TIM Output Compare handle
* @param Channel TIM Channel to be disabled
* This parameter can be one of the following values:
* @arg TIM_CHANNEL_1: TIM Channel 1 selected
* @arg TIM_CHANNEL_2: TIM Channel 2 selected
* @arg TIM_CHANNEL_3: TIM Channel 3 selected
* @arg TIM_CHANNEL_4: TIM Channel 4 selected
* @retval HAL status
*/
HAL_StatusTypeDef HAL_TIM_OC_Stop_IT(TIM_HandleTypeDef *htim, uint32_t Channel)
{
/* Check the parameters */
assert_param(IS_TIM_CCX_INSTANCE(htim->Instance, Channel));
switch (Channel)
{
case TIM_CHANNEL_1:
{
/* Disable the TIM Capture/Compare 1 interrupt */
__HAL_TIM_DISABLE_IT(htim, TIM_IT_CC1);
break;
}
case TIM_CHANNEL_2:
{
/* Disable the TIM Capture/Compare 2 interrupt */
__HAL_TIM_DISABLE_IT(htim, TIM_IT_CC2);
break;
}
case TIM_CHANNEL_3:
{
/* Disable the TIM Capture/Compare 3 interrupt */
__HAL_TIM_DISABLE_IT(htim, TIM_IT_CC3);
break;
}
case TIM_CHANNEL_4:
{
/* Disable the TIM Capture/Compare 4 interrupt */
__HAL_TIM_DISABLE_IT(htim, TIM_IT_CC4);
break;
}
default:
break;
}