/** ****************************************************************************** * @file stm8s_tim2.c * @author MCD Application Team * @version V2.2.0 * @date 30-September-2014 * @brief This file contains all the functions for the TIM2 peripheral. ****************************************************************************** * @attention * *

© COPYRIGHT 2014 STMicroelectronics

* * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); * You may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.st.com/software_license_agreement_liberty_v2 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "stm8s_tim2.h" /** @addtogroup STM8S_StdPeriph_Driver * @{ */ /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ static void TI1_Config(uint8_t TIM2_ICPolarity, uint8_t TIM2_ICSelection, uint8_t TIM2_ICFilter); static void TI2_Config(uint8_t TIM2_ICPolarity, uint8_t TIM2_ICSelection, uint8_t TIM2_ICFilter); static void TI3_Config(uint8_t TIM2_ICPolarity, uint8_t TIM2_ICSelection, uint8_t TIM2_ICFilter); /** * @addtogroup TIM2_Public_Functions * @{ */ /** * @brief Deinitializes the TIM2 peripheral registers to their default reset values. * @param None * @retval None */ void TIM2_DeInit(void) { TIM2->CR1 = (uint8_t)TIM2_CR1_RESET_VALUE; TIM2->IER = (uint8_t)TIM2_IER_RESET_VALUE; TIM2->SR2 = (uint8_t)TIM2_SR2_RESET_VALUE; /* Disable channels */ TIM2->CCER1 = (uint8_t)TIM2_CCER1_RESET_VALUE; TIM2->CCER2 = (uint8_t)TIM2_CCER2_RESET_VALUE; /* Then reset channel registers: it also works if lock level is equal to 2 or 3 */ TIM2->CCER1 = (uint8_t)TIM2_CCER1_RESET_VALUE; TIM2->CCER2 = (uint8_t)TIM2_CCER2_RESET_VALUE; TIM2->CCMR1 = (uint8_t)TIM2_CCMR1_RESET_VALUE; TIM2->CCMR2 = (uint8_t)TIM2_CCMR2_RESET_VALUE; TIM2->CCMR3 = (uint8_t)TIM2_CCMR3_RESET_VALUE; TIM2->CNTRH = (uint8_t)TIM2_CNTRH_RESET_VALUE; TIM2->CNTRL = (uint8_t)TIM2_CNTRL_RESET_VALUE; TIM2->PSCR = (uint8_t)TIM2_PSCR_RESET_VALUE; TIM2->ARRH = (uint8_t)TIM2_ARRH_RESET_VALUE; TIM2->ARRL = (uint8_t)TIM2_ARRL_RESET_VALUE; TIM2->CCR1H = (uint8_t)TIM2_CCR1H_RESET_VALUE; TIM2->CCR1L = (uint8_t)TIM2_CCR1L_RESET_VALUE; TIM2->CCR2H = (uint8_t)TIM2_CCR2H_RESET_VALUE; TIM2->CCR2L = (uint8_t)TIM2_CCR2L_RESET_VALUE; TIM2->CCR3H = (uint8_t)TIM2_CCR3H_RESET_VALUE; TIM2->CCR3L = (uint8_t)TIM2_CCR3L_RESET_VALUE; TIM2->SR1 = (uint8_t)TIM2_SR1_RESET_VALUE; } /** * @brief Initializes the TIM2 Time Base Unit according to the specified parameters. * @param TIM2_Prescaler specifies the Prescaler from TIM2_Prescaler_TypeDef. * @param TIM2_Period specifies the Period value. * @retval None */ void TIM2_TimeBaseInit( TIM2_Prescaler_TypeDef TIM2_Prescaler, uint16_t TIM2_Period) { /* Set the Prescaler value */ TIM2->PSCR = (uint8_t)(TIM2_Prescaler); /* Set the Autoreload value */ TIM2->ARRH = (uint8_t)(TIM2_Period >> 8); TIM2->ARRL = (uint8_t)(TIM2_Period); } /** * @brief Initializes the TIM2 Channel1 according to the specified parameters. * @param TIM2_OCMode specifies the Output Compare mode from @ref TIM2_OCMode_TypeDef. * @param TIM2_OutputState specifies the Output State from @ref TIM2_OutputState_TypeDef. * @param TIM2_Pulse specifies the Pulse width value. * @param TIM2_OCPolarity specifies the Output Compare Polarity from @ref TIM2_OCPolarity_TypeDef. * @retval None */ void TIM2_OC1Init(TIM2_OCMode_TypeDef TIM2_OCMode, TIM2_OutputState_TypeDef TIM2_OutputState, uint16_t TIM2_Pulse, TIM2_OCPolarity_TypeDef TIM2_OCPolarity) { /* Check the parameters */ assert_param(IS_TIM2_OC_MODE_OK(TIM2_OCMode)); assert_param(IS_TIM2_OUTPUT_STATE_OK(TIM2_OutputState)); assert_param(IS_TIM2_OC_POLARITY_OK(TIM2_OCPolarity)); /* Disable the Channel 1: Reset the CCE Bit, Set the Output State , the Output Polarity */ TIM2->CCER1 &= (uint8_t)(~( TIM2_CCER1_CC1E | TIM2_CCER1_CC1P)); /* Set the Output State & Set the Output Polarity */ TIM2->CCER1 |= (uint8_t)((uint8_t)(TIM2_OutputState & TIM2_CCER1_CC1E ) | (uint8_t)(TIM2_OCPolarity & TIM2_CCER1_CC1P)); /* Reset the Output Compare Bits & Set the Ouput Compare Mode */ TIM2->CCMR1 = (uint8_t)((uint8_t)(TIM2->CCMR1 & (uint8_t)(~TIM2_CCMR_OCM)) | (uint8_t)TIM2_OCMode); /* Set the Pulse value */ TIM2->CCR1H = (uint8_t)(TIM2_Pulse >> 8); TIM2->CCR1L = (uint8_t)(TIM2_Pulse); } /** * @brief Initializes the TIM2 Channel2 according to the specified parameters. * @param TIM2_OCMode specifies the Output Compare mode from @ref TIM2_OCMode_TypeDef. * @param TIM2_OutputState specifies the Output State from @ref TIM2_OutputState_TypeDef. * @param TIM2_Pulse specifies the Pulse width value. * @param TIM2_OCPolarity specifies the Output Compare Polarity from @ref TIM2_OCPolarity_TypeDef. * @retval None */ void TIM2_OC2Init(TIM2_OCMode_TypeDef TIM2_OCMode, TIM2_OutputState_TypeDef TIM2_OutputState, uint16_t TIM2_Pulse, TIM2_OCPolarity_TypeDef TIM2_OCPolarity) { /* Check the parameters */ assert_param(IS_TIM2_OC_MODE_OK(TIM2_OCMode)); assert_param(IS_TIM2_OUTPUT_STATE_OK(TIM2_OutputState)); assert_param(IS_TIM2_OC_POLARITY_OK(TIM2_OCPolarity)); /* Disable the Channel 1: Reset the CCE Bit, Set the Output State, the Output Polarity */ TIM2->CCER1 &= (uint8_t)(~( TIM2_CCER1_CC2E | TIM2_CCER1_CC2P )); /* Set the Output State & Set the Output Polarity */ TIM2->CCER1 |= (uint8_t)((uint8_t)(TIM2_OutputState & TIM2_CCER1_CC2E ) | (uint8_t)(TIM2_OCPolarity & TIM2_CCER1_CC2P)); /* Reset the Output Compare Bits & Set the Output Compare Mode */ TIM2->CCMR2 = (uint8_t)((uint8_t)(TIM2->CCMR2 & (uint8_t)(~TIM2_CCMR_OCM)) | (uint8_t)TIM2_OCMode); /* Set the Pulse value */ TIM2->CCR2H = (uint8_t)(TIM2_Pulse >> 8); TIM2->CCR2L = (uint8_t)(TIM2_Pulse); } /** * @brief Initializes the TIM2 Channel3 according to the specified parameters. * @param TIM2_OCMode specifies the Output Compare mode from @ref TIM2_OCMode_TypeDef. * @param TIM2_OutputState specifies the Output State from @ref TIM2_OutputState_TypeDef. * @param TIM2_Pulse specifies the Pulse width value. * @param TIM2_OCPolarity specifies the Output Compare Polarity from @ref TIM2_OCPolarity_TypeDef. * @retval None */ void TIM2_OC3Init(TIM2_OCMode_TypeDef TIM2_OCMode, TIM2_OutputState_TypeDef TIM2_OutputState, uint16_t TIM2_Pulse, TIM2_OCPolarity_TypeDef TIM2_OCPolarity) { /* Check the parameters */ assert_param(IS_TIM2_OC_MODE_OK(TIM2_OCMode)); assert_param(IS_TIM2_OUTPUT_STATE_OK(TIM2_OutputState)); assert_param(IS_TIM2_OC_POLARITY_OK(TIM2_OCPolarity)); /* Disable the Channel 1: Reset the CCE Bit, Set the Output State, the Output Polarity */ TIM2->CCER2 &= (uint8_t)(~( TIM2_CCER2_CC3E | TIM2_CCER2_CC3P)); /* Set the Output State & Set the Output Polarity */ TIM2->CCER2 |= (uint8_t)((uint8_t)(TIM2_OutputState & TIM2_CCER2_CC3E) | (uint8_t)(TIM2_OCPolarity & TIM2_CCER2_CC3P)); /* Reset the Output Compare Bits & Set the Output Compare Mode */ TIM2->CCMR3 = (uint8_t)((uint8_t)(TIM2->CCMR3 & (uint8_t)(~TIM2_CCMR_OCM)) | (uint8_t)TIM2_OCMode); /* Set the Pulse value */ TIM2->CCR3H = (uint8_t)(TIM2_Pulse >> 8); TIM2->CCR3L = (uint8_t)(TIM2_Pulse); } /** * @brief Initializes the TIM2 peripheral according to the specified parameters. * @param TIM2_Channel specifies the Input Capture Channel from @ref TIM2_Channel_TypeDef. * @param TIM2_ICPolarity specifies the Input Capture Polarity from @ref TIM2_ICPolarity_TypeDef. * @param TIM2_ICSelection specifies the Input Capture Selection from @ref TIM2_ICSelection_TypeDef. * @param TIM2_ICPrescaler specifies the Input Capture Prescaler from @ref TIM2_ICPSC_TypeDef. * @param TIM2_ICFilter specifies the Input Capture Filter value (value can be an integer from 0x00 to 0x0F). * @retval None */ void TIM2_ICInit(TIM2_Channel_TypeDef TIM2_Channel, TIM2_ICPolarity_TypeDef TIM2_ICPolarity, TIM2_ICSelection_TypeDef TIM2_ICSelection, TIM2_ICPSC_TypeDef TIM2_ICPrescaler, uint8_t TIM2_ICFilter) { /* Check the parameters */ assert_param(IS_TIM2_CHANNEL_OK(TIM2_Channel)); assert_param(IS_TIM2_IC_POLARITY_OK(TIM2_ICPolarity)); assert_param(IS_TIM2_IC_SELECTION_OK(TIM2_ICSelection)); assert_param(IS_TIM2_IC_PRESCALER_OK(TIM2_ICPrescaler)); assert_param(IS_TIM2_IC_FILTER_OK(TIM2_ICFilter)); if (TIM2_Channel == TIM2_CHANNEL_1) { /* TI1 Configuration */ TI1_Config((uint8_t)TIM2_ICPolarity, (uint8_t)TIM2_ICSelection, (uint8_t)TIM2_ICFilter); /* Set the Input Capture Prescaler value */ TIM2_SetIC1Prescaler(TIM2_ICPrescaler); } else if (TIM2_Channel == TIM2_CHANNEL_2) { /* TI2 Configuration */ TI2_Config((uint8_t)TIM2_ICPolarity, (uint8_t)TIM2_ICSelection, (uint8_t)TIM2_ICFilter); /* Set the Input Capture Prescaler value */ TIM2_SetIC2Prescaler(TIM2_ICPrescaler); } else { /* TI3 Configuration */ TI3_Config((uint8_t)TIM2_ICPolarity, (uint8_t)TIM2_ICSelection, (uint8_t)TIM2_ICFilter); /* Set the Input Capture Prescaler value */ TIM2_SetIC3Prescaler(TIM2_ICPrescaler); } } /** * @brief Configures the TIM2 peripheral in PWM Input Mode according to the specified parameters. * @param TIM2_Channel specifies the Input Capture Channel from @ref TIM2_Channel_TypeDef. * @param TIM2_ICPolarity specifies the Input Capture Polarity from @ref TIM2_ICPolarity_TypeDef. * @param TIM2_ICSelection specifies the Input Capture Selection from @ref TIM2_ICSelection_TypeDef. * @param TIM2_ICPrescaler specifies the Input Capture Prescaler from @ref TIM2_ICPSC_TypeDef. * @param TIM2_ICFilter specifies the Input Capture Filter value (value can be an integer from 0x00 to 0x0F). * @retval None */ void TIM2_PWMIConfig(TIM2_Channel_TypeDef TIM2_Channel, TIM2_ICPolarity_TypeDef TIM2_ICPolarity, TIM2_ICSelection_TypeDef TIM2_ICSelection, TIM2_ICPSC_TypeDef TIM2_ICPrescaler, uint8_t TIM2_ICFilter) { uint8_t icpolarity = (uint8_t)TIM2_ICPOLARITY_RISING; uint8_t icselection = (uint8_t)TIM2_ICSELECTION_DIRECTTI; /* Check the parameters */ assert_param(IS_TIM2_PWMI_CHANNEL_OK(TIM2_Channel)); assert_param(IS_TIM2_IC_POLARITY_OK(TIM2_ICPolarity)); assert_param(IS_TIM2_IC_SELECTION_OK(TIM2_ICSelection)); assert_param(IS_TIM2_IC_PRESCALER_OK(TIM2_ICPrescaler)); /* Select the Opposite Input Polarity */ if (TIM2_ICPolarity != TIM2_ICPOLARITY_FALLING) { icpolarity = (uint8_t)TIM2_ICPOLARITY_FALLING; } else { icpolarity = (uint8_t)TIM2_ICPOLARITY_RISING; } /* Select the Opposite Input */ if (TIM2_ICSelection == TIM2_ICSELECTION_DIRECTTI) { icselection = (uint8_t)TIM2_ICSELECTION_INDIRECTTI; } else { icselection = (uint8_t)TIM2_ICSELECTION_DIRECTTI; } if (TIM2_Channel == TIM2_CHANNEL_1) { /* TI1 Configuration */ TI1_Config((uint8_t)TIM2_ICPolarity, (uint8_t)TIM2_ICSelection, (uint8_t)TIM2_ICFilter); /* Set the Input Capture Prescaler value */ TIM2_SetIC1Prescaler(TIM2_ICPrescaler); /* TI2 Configuration */ TI2_Config(icpolarity, icselection, TIM2_ICFilter); /* Set the Input Capture Prescaler value */ TIM2_SetIC2Prescaler(TIM2_ICPrescaler); } else { /* TI2 Configuration */ TI2_Config((uint8_t)TIM2_ICPolarity, (uint8_t)TIM2_ICSelection, (uint8_t)TIM2_ICFilter); /* Set the Input Capture Prescaler value */ TIM2_SetIC2Prescaler(TIM2_ICPrescaler); /* TI1 Configuration */ TI1_Config((uint8_t)icpolarity, icselection, (uint8_t)TIM2_ICFilter); /* Set the Input Capture Prescaler value */ TIM2_SetIC1Prescaler(TIM2_ICPrescaler); } } /** * @brief Enables or disables the TIM2 peripheral. * @param NewState new state of the TIM2 peripheral. This parameter can * be ENABLE or DISABLE. * @retval None */ void TIM2_Cmd(FunctionalState NewState) { /* Check the parameters */ assert_param(IS_FUNCTIONALSTATE_OK(NewState)); /* set or Reset the CEN Bit */ if (NewState != DISABLE) { TIM2->CR1 |= (uint8_t)TIM2_CR1_CEN; } else { TIM2->CR1 &= (uint8_t)(~TIM2_CR1_CEN); } } /** * @brief Enables or disables the specified TIM2 interrupts. * @param NewState new state of the TIM2 peripheral. * This parameter can be: ENABLE or DISABLE. * @param TIM2_IT specifies the TIM2 interrupts sources to be enabled or disabled. * This parameter can be any combination of the following values: * - TIM2_IT_UPDATE: TIM2 update Interrupt source * - TIM2_IT_CC1: TIM2 Capture Compare 1 Interrupt source * - TIM2_IT_CC2: TIM2 Capture Compare 2 Interrupt source * - TIM2_IT_CC3: TIM2 Capture Compare 3 Interrupt source * @param NewState new state of the TIM2 peripheral. * @retval None */ void TIM2_ITConfig(TIM2_IT_TypeDef TIM2_IT, FunctionalState NewState) { /* Check the parameters */ assert_param(IS_TIM2_IT_OK(TIM2_IT)); assert_param(IS_FUNCTIONALSTATE_OK(NewState)); if (NewState != DISABLE) { /* Enable the Interrupt sources */ TIM2->IER |= (uint8_t)TIM2_IT; } else { /* Disable the Interrupt sources */ TIM2->IER &= (uint8_t)(~TIM2_IT); } } /** * @brief Enables or Disables the TIM2 Update event. * @param NewState new state of the TIM2 peripheral Preload register. This parameter can * be ENABLE or DISABLE. * @retval None */ void TIM2_UpdateDisableConfig(FunctionalState NewState) { /* Check the parameters */ assert_param(IS_FUNCTIONALSTATE_OK(NewState)); /* Set or Reset the UDIS Bit */ if (NewState != DISABLE) { TIM2->CR1 |= (uint8_t)TIM2_CR1_UDIS; } else { TIM2->CR1 &= (uint8_t)(~TIM2_CR1_UDIS); } } /** * @brief Selects the TIM2 Update Request Interrupt source. * @param TIM2_UpdateSource specifies the Update source. * This parameter can be one of the following values * - TIM2_UPDATESOURCE_REGULAR * - TIM2_UPDATESOURCE_GLOBAL * @retval None */ void TIM2_UpdateRequestConfig(TIM2_UpdateSource_TypeDef TIM2_UpdateSource) { /* Check the parameters */ assert_param(IS_TIM2_UPDATE_SOURCE_OK(TIM2_UpdateSource)); /* Set or Reset the URS Bit */ if (TIM2_UpdateSource != TIM2_UPDATESOURCE_GLOBAL) { TIM2->CR1 |= (uint8_t)TIM2_CR1_URS; } else { TIM2->CR1 &= (uint8_t)(~TIM2_CR1_URS); } } /** * @brief Selects the TIM2’s One Pulse Mode. * @param TIM2_OPMode specifies the OPM Mode to be used. * This parameter can be one of the following values * - TIM2_OPMODE_SINGLE * - TIM2_OPMODE_REPETITIVE * @retval None */ void TIM2_SelectOnePulseMode(TIM2_OPMode_TypeDef TIM2_OPMode) { /* Check the parameters */ assert_param(IS_TIM2_OPM_MODE_OK(TIM2_OPMode)); /* Set or Reset the OPM Bit */ if (TIM2_OPMode != TIM2_OPMODE_REPETITIVE) { TIM2->CR1 |= (uint8_t)TIM2_CR1_OPM; } else { TIM2->CR1 &= (uint8_t)(~TIM2_CR1_OPM); } } /** * @brief Configures the TIM2 Prescaler. * @param Prescaler specifies the Prescaler Register value * This parameter can be one of the following values * - TIM2_PRESCALER_1 * - TIM2_PRESCALER_2 * - TIM2_PRESCALER_4 * - TIM2_PRESCALER_8 * - TIM2_PRESCALER_16 * - TIM2_PRESCALER_32 * - TIM2_PRESCALER_64 * - TIM2_PRESCALER_128 * - TIM2_PRESCALER_256 * - TIM2_PRESCALER_512 * - TIM2_PRESCALER_1024 * - TIM2_PRESCALER_2048 * - TIM2_PRESCALER_4096 * - TIM2_PRESCALER_8192 * - TIM2_PRESCALER_16384 * - TIM2_PRESCALER_32768 * @param TIM2_PSCReloadMode specifies the TIM2 Prescaler Reload mode. * This parameter can be one of the following values * - TIM2_PSCRELOADMODE_IMMEDIATE: The Prescaler is loaded * immediately. * - TIM2_PSCRELOADMODE_UPDATE: The Prescaler is loaded at * the update event. * @retval None */ void TIM2_PrescalerConfig(TIM2_Prescaler_TypeDef Prescaler, TIM2_PSCReloadMode_TypeDef TIM2_PSCReloadMode) { /* Check the parameters */ assert_param(IS_TIM2_PRESCALER_RELOAD_OK(TIM2_PSCReloadMode)); assert_param(IS_TIM2_PRESCALER_OK(Prescaler)); /* Set the Prescaler value */ TIM2->PSCR = (uint8_t)Prescaler; /* Set or reset the UG Bit */ TIM2->EGR = (uint8_t)TIM2_PSCReloadMode; } /** * @brief Forces the TIM2 Channel1 output waveform to active or inactive level. * @param TIM2_ForcedAction specifies the forced Action to be set to the output waveform. * This parameter can be one of the following values: * - TIM2_FORCEDACTION_ACTIVE: Force active level on OC1REF * - TIM2_FORCEDACTION_INACTIVE: Force inactive level on * OC1REF. * @retval None */ void TIM2_ForcedOC1Config(TIM2_ForcedAction_TypeDef TIM2_ForcedAction) { /* Check the parameters */ assert_param(IS_TIM2_FORCED_ACTION_OK(TIM2_ForcedAction)); /* Reset the OCM Bits & Configure the Forced output Mode */ TIM2->CCMR1 = (uint8_t)((uint8_t)(TIM2->CCMR1 & (uint8_t)(~TIM2_CCMR_OCM)) | (uint8_t)TIM2_ForcedAction); } /** * @brief Forces the TIM2 Channel2 output waveform to active or inactive level. * @param TIM2_ForcedAction specifies the forced Action to be set to the output waveform. * This parameter can be one of the following values: * - TIM2_FORCEDACTION_ACTIVE: Force active level on OC2REF * - TIM2_FORCEDACTION_INACTIVE: Force inactive level on * OC2REF. * @retval None */ void TIM2_ForcedOC2Config(TIM2_ForcedAction_TypeDef TIM2_ForcedAction) { /* Check the parameters */ assert_param(IS_TIM2_FORCED_ACTION_OK(TIM2_ForcedAction)); /* Reset the OCM Bits & Configure the Forced output Mode */ TIM2->CCMR2 = (uint8_t)((uint8_t)(TIM2->CCMR2 & (uint8_t)(~TIM2_CCMR_OCM)) | (uint8_t)TIM2_ForcedAction); } /** * @brief Forces the TIM2 Channel3 output waveform to active or inactive level. * @param TIM2_ForcedAction specifies the forced Action to be set to the output waveform. * This parameter can be one of the following values: * - TIM2_FORCEDACTION_ACTIVE: Force active level on OC3REF * - TIM2_FORCEDACTION_INACTIVE: Force inactive level on * OC3REF. * @retval None */ void TIM2_ForcedOC3Config(TIM2_ForcedAction_TypeDef TIM2_ForcedAction) { /* Check the parameters */ assert_param(IS_TIM2_FORCED_ACTION_OK(TIM2_ForcedAction)); /* Reset the OCM Bits & Configure the Forced output Mode */ TIM2->CCMR3 = (uint8_t)((uint8_t)(TIM2->CCMR3 & (uint8_t)(~TIM2_CCMR_OCM)) | (uint8_t)TIM2_ForcedAction); } /** * @brief Enables or disables TIM2 peripheral Preload register on ARR. * @param NewState new state of the TIM2 peripheral Preload register. * This parameter can be ENABLE or DISABLE. * @retval None */ void TIM2_ARRPreloadConfig(FunctionalState NewState) { /* Check the parameters */ assert_param(IS_FUNCTIONALSTATE_OK(NewState)); /* Set or Reset the ARPE Bit */ if (NewState != DISABLE) { TIM2->CR1 |= (uint8_t)TIM2_CR1_ARPE; } else { TIM2->CR1 &= (uint8_t)(~TIM2_CR1_ARPE); } } /** * @brief Enables or disables the TIM2 peripheral Preload Register on CCR1. * @param NewState new state of the Capture Compare Preload register. * This parameter can be ENABLE or DISABLE. * @retval None */ void TIM2_OC1PreloadConfig(FunctionalState NewState) { /* Check the parameters */ assert_param(IS_FUNCTIONALSTATE_OK(NewState)); /* Set or Reset the OC1PE Bit */ if (NewState != DISABLE) { TIM2->CCMR1 |= (uint8_t)TIM2_CCMR_OCxPE; } else { TIM2->CCMR1 &= (uint8_t)(~TIM2_CCMR_OCxPE); } } /** * @brief Enables or disables the TIM2 peripheral Preload Register on CCR2. * @param NewState new state of the Capture Compare Preload register. * This parameter can be ENABLE or DISABLE. * @retval None */ void TIM2_OC2PreloadConfig(FunctionalState NewState) { /* Check the parameters */ assert_param(IS_FUNCTIONALSTATE_OK(NewState)); /* Set or Reset the OC2PE Bit */ if (NewState != DISABLE) { TIM2->CCMR2 |= (uint8_t)TIM2_CCMR_OCxPE; } else { TIM2->CCMR2 &= (uint8_t)(~TIM2_CCMR_OCxPE); } } /** * @brief Enables or disables the TIM2 peripheral Preload Register on CCR3. * @param NewState new state of the Capture Compare Preload register. * This parameter can be ENABLE or DISABLE. * @retval None */ void TIM2_OC3PreloadConfig(FunctionalState NewState) { /* Check the parameters */ assert_param(IS_FUNCTIONALSTATE_OK(NewState)); /* Set or Reset the OC3PE Bit */ if (NewState != DISABLE) { TIM2->CCMR3 |= (uint8_t)TIM2_CCMR_OCxPE; } else { TIM2->CCMR3 &= (uint8_t)(~TIM2_CCMR_OCxPE); } } /** * @brief Configures the TIM2 event to be generated by software. * @param TIM2_EventSource specifies the event source. * This parameter can be one of the following values: * - TIM2_EVENTSOURCE_UPDATE: TIM2 update Event source * - TIM2_EVENTSOURCE_CC1: TIM2 Capture Compare 1 Event source * - TIM2_EVENTSOURCE_CC2: TIM2 Capture Compare 2 Event source * - TIM2_EVENTSOURCE_CC3: TIM2 Capture Compare 3 Event source * @retval None */ void TIM2_GenerateEvent(TIM2_EventSource_TypeDef TIM2_EventSource) { /* Check the parameters */ assert_param(IS_TIM2_EVENT_SOURCE_OK(TIM2_EventSource)); /* Set the event sources */ TIM2->EGR = (uint8_t)TIM2_EventSource; } /** * @brief Configures the TIM2 Channel 1 polarity. * @param TIM2_OCPolarity specifies the OC1 Polarity. * This parameter can be one of the following values: * - TIM2_OCPOLARITY_LOW: Output Compare active low * - TIM2_OCPOLARITY_HIGH: Output Compare active high * @retval None */ void TIM2_OC1PolarityConfig(TIM2_OCPolarity_TypeDef TIM2_OCPolarity) { /* Check the parameters */ assert_param(IS_TIM2_OC_POLARITY_OK(TIM2_OCPolarity)); /* Set or Reset the CC1P Bit */ if (TIM2_OCPolarity != TIM2_OCPOLARITY_HIGH) { TIM2->CCER1 |= (uint8_t)TIM2_CCER1_CC1P; } else { TIM2->CCER1 &= (uint8_t)(~TIM2_CCER1_CC1P); } } /** * @brief Configures the TIM2 Channel 2 polarity. * @param TIM2_OCPolarity specifies the OC2 Polarity. * This parameter can be one of the following values: * - TIM2_OCPOLARITY_LOW: Output Compare active low * - TIM2_OCPOLARITY_HIGH: Output Compare active high * @retval None */ void TIM2_OC2PolarityConfig(TIM2_OCPolarity_TypeDef TIM2_OCPolarity) { /* Check the parameters */ assert_param(IS_TIM2_OC_POLARITY_OK(TIM2_OCPolarity)); /* Set or Reset the CC2P Bit */ if (TIM2_OCPolarity != TIM2_OCPOLARITY_HIGH) { TIM2->CCER1 |= TIM2_CCER1_CC2P; } else { TIM2->CCER1 &= (uint8_t)(~TIM2_CCER1_CC2P); } } /** * @brief Configures the TIM2 Channel 3 polarity. * @param TIM2_OCPolarity specifies the OC3 Polarity. * This parameter can be one of the following values: * - TIM2_OCPOLARITY_LOW: Output Compare active low * - TIM2_OCPOLARITY_HIGH: Output Compare active high * @retval None */ void TIM2_OC3PolarityConfig(TIM2_OCPolarity_TypeDef TIM2_OCPolarity) { /* Check the parameters */ assert_param(IS_TIM2_OC_POLARITY_OK(TIM2_OCPolarity)); /* Set or Reset the CC3P Bit */ if (TIM2_OCPolarity != TIM2_OCPOLARITY_HIGH) { TIM2->CCER2 |= (uint8_t)TIM2_CCER2_CC3P; } else { TIM2->CCER2 &= (uint8_t)(~TIM2_CCER2_CC3P); } } /** * @brief Enables or disables the TIM2 Capture Compare Channel x. * @param TIM2_Channel specifies the TIM2 Channel. * This parameter can be one of the following values: * - TIM2_CHANNEL_1: TIM2 Channel1 * - TIM2_CHANNEL_2: TIM2 Channel2 * - TIM2_CHANNEL_3: TIM2 Channel3 * @param NewState specifies the TIM2 Channel CCxE bit new state. * This parameter can be: ENABLE or DISABLE. * @retval None */ void TIM2_CCxCmd(TIM2_Channel_TypeDef TIM2_Channel, FunctionalState NewState) { /* Check the parameters */ assert_param(IS_TIM2_CHANNEL_OK(TIM2_Channel)); assert_param(IS_FUNCTIONALSTATE_OK(NewState)); if (TIM2_Channel == TIM2_CHANNEL_1) { /* Set or Reset the CC1E Bit */ if (NewState != DISABLE) { TIM2->CCER1 |= (uint8_t)TIM2_CCER1_CC1E; } else { TIM2->CCER1 &= (uint8_t)(~TIM2_CCER1_CC1E); } } else if (TIM2_Channel == TIM2_CHANNEL_2) { /* Set or Reset the CC2E Bit */ if (NewState != DISABLE) { TIM2->CCER1 |= (uint8_t)TIM2_CCER1_CC2E; } else { TIM2->CCER1 &= (uint8_t)(~TIM2_CCER1_CC2E); } } else { /* Set or Reset the CC3E Bit */ if (NewState != DISABLE) { TIM2->CCER2 |= (uint8_t)TIM2_CCER2_CC3E; } else { TIM2->CCER2 &= (uint8_t)(~TIM2_CCER2_CC3E); } } } /** * @brief Selects the TIM2 Output Compare Mode. This function disables the * selected channel before changing the Output Compare Mode. User has to * enable this channel using TIM2_CCxCmd and TIM2_CCxNCmd functions. * @param TIM2_Channel specifies the TIM2 Channel. * This parameter can be one of the following values: * - TIM2_CHANNEL_1: TIM2 Channel1 * - TIM2_CHANNEL_2: TIM2 Channel2 * - TIM2_CHANNEL_3: TIM2 Channel3 * @param TIM2_OCMode specifies the TIM2 Output Compare Mode. * This parameter can be one of the following values: * - TIM2_OCMODE_TIMING * - TIM2_OCMODE_ACTIVE * - TIM2_OCMODE_TOGGLE * - TIM2_OCMODE_PWM1 * - TIM2_OCMODE_PWM2 * - TIM2_FORCEDACTION_ACTIVE * - TIM2_FORCEDACTION_INACTIVE * @retval None */ void TIM2_SelectOCxM(TIM2_Channel_TypeDef TIM2_Channel, TIM2_OCMode_TypeDef TIM2_OCMode) { /* Check the parameters */ assert_param(IS_TIM2_CHANNEL_OK(TIM2_Channel)); assert_param(IS_TIM2_OCM_OK(TIM2_OCMode)); if (TIM2_Channel == TIM2_CHANNEL_1) { /* Disable the Channel 1: Reset the CCE Bit */ TIM2->CCER1 &= (uint8_t)(~TIM2_CCER1_CC1E); /* Reset the Output Compare Bits & Set the Output Compare Mode */ TIM2->CCMR1 = (uint8_t)((uint8_t)(TIM2->CCMR1 & (uint8_t)(~TIM2_CCMR_OCM)) | (uint8_t)TIM2_OCMode); } else if (TIM2_Channel == TIM2_CHANNEL_2) { /* Disable the Channel 2: Reset the CCE Bit */ TIM2->CCER1 &= (uint8_t)(~TIM2_CCER1_CC2E); /* Reset the Output Compare Bits & Set the Output Compare Mode */ TIM2->CCMR2 = (uint8_t)((uint8_t)(TIM2->CCMR2 & (uint8_t)(~TIM2_CCMR_OCM)) | (uint8_t)TIM2_OCMode); } else { /* Disable the Channel 3: Reset the CCE Bit */ TIM2->CCER2 &= (uint8_t)(~TIM2_CCER2_CC3E); /* Reset the Output Compare Bits & Set the Output Compare Mode */ TIM2->CCMR3 = (uint8_t)((uint8_t)(TIM2->CCMR3 & (uint8_t)(~TIM2_CCMR_OCM)) | (uint8_t)TIM2_OCMode); } } /** * @brief Sets the TIM2 Counter Register value. * @param Counter specifies the Counter register new value. * This parameter is between 0x0000 and 0xFFFF. * @retval None */ void TIM2_SetCounter(uint16_t Counter) { /* Set the Counter Register value */ TIM2->CNTRH = (uint8_t)(Counter >> 8); TIM2->CNTRL = (uint8_t)(Counter); } /** * @brief Sets the TIM2 Autoreload Register value. * @param Autoreload specifies the Autoreload register new value. * This parameter is between 0x0000 and 0xFFFF. * @retval None */ void TIM2_SetAutoreload(uint16_t Autoreload) { /* Set the Autoreload Register value */ TIM2->ARRH = (uint8_t)(Autoreload >> 8); TIM2->ARRL = (uint8_t)(Autoreload); } /** * @brief Sets the TIM2 Capture Compare1 Register value. * @param Compare1 specifies the Capture Compare1 register new value. * This parameter is between 0x0000 and 0xFFFF. * @retval None */ void TIM2_SetCompare1(uint16_t Compare1) { /* Set the Capture Compare1 Register value */ TIM2->CCR1H = (uint8_t)(Compare1 >> 8); TIM2->CCR1L = (uint8_t)(Compare1); } /** * @brief Sets the TIM2 Capture Compare2 Register value. * @param Compare2 specifies the Capture Compare2 register new value. * This parameter is between 0x0000 and 0xFFFF. * @retval None */ void TIM2_SetCompare2(uint16_t Compare2) { /* Set the Capture Compare2 Register value */ TIM2->CCR2H = (uint8_t)(Compare2 >> 8); TIM2->CCR2L = (uint8_t)(Compare2); } /** * @brief Sets the TIM2 Capture Compare3 Register value. * @param Compare3 specifies the Capture Compare3 register new value. * This parameter is between 0x0000 and 0xFFFF. * @retval None */ void TIM2_SetCompare3(uint16_t Compare3) { /* Set the Capture Compare3 Register value */ TIM2->CCR3H = (uint8_t)(Compare3 >> 8); TIM2->CCR3L = (uint8_t)(Compare3); } /** * @brief Sets the TIM2 Input Capture 1 Prescaler. * @param TIM2_IC1Prescaler specifies the Input Capture prescaler new value * This parameter can be one of the following values: * - TIM2_ICPSC_DIV1: no prescaler * - TIM2_ICPSC_DIV2: capture is done once every 2 events * - TIM2_ICPSC_DIV4: capture is done once every 4 events * - TIM2_ICPSC_DIV8: capture is done once every 8 events * @retval None */ void TIM2_SetIC1Prescaler(TIM2_ICPSC_TypeDef TIM2_IC1Prescaler) { /* Check the parameters */ assert_param(IS_TIM2_IC_PRESCALER_OK(TIM2_IC1Prescaler)); /* Reset the IC1PSC Bits &Set the IC1PSC value */ TIM2->CCMR1 = (uint8_t)((uint8_t)(TIM2->CCMR1 & (uint8_t)(~TIM2_CCMR_ICxPSC)) | (uint8_t)TIM2_IC1Prescaler); } /** * @brief Sets the TIM2 Input Capture 2 prescaler. * @param TIM2_IC2Prescaler specifies the Input Capture prescaler new value * This parameter can be one of the following values: * - TIM2_ICPSC_DIV1: no prescaler * - TIM2_ICPSC_DIV2: capture is done once every 2 events * - TIM2_ICPSC_DIV4: capture is done once every 4 events * - TIM2_ICPSC_DIV8: capture is done once every 8 events * @retval None */ void TIM2_SetIC2Prescaler(TIM2_ICPSC_TypeDef TIM2_IC2Prescaler) { /* Check the parameters */ assert_param(IS_TIM2_IC_PRESCALER_OK(TIM2_IC2Prescaler)); /* Reset the IC1PSC Bits &Set the IC1PSC value */ TIM2->CCMR2 = (uint8_t)((uint8_t)(TIM2->CCMR2 & (uint8_t)(~TIM2_CCMR_ICxPSC)) | (uint8_t)TIM2_IC2Prescaler); } /** * @brief Sets the TIM2 Input Capture 3 prescaler. * @param TIM2_IC3Prescaler specifies the Input Capture prescaler new value * This parameter can be one of the following values: * - TIM2_ICPSC_DIV1: no prescaler * - TIM2_ICPSC_DIV2: capture is done once every 2 events * - TIM2_ICPSC_DIV4: capture is done once every 4 events * - TIM2_ICPSC_DIV8: capture is done once every 8 events * @retval None */ void TIM2_SetIC3Prescaler(TIM2_ICPSC_TypeDef TIM2_IC3Prescaler) { /* Check the parameters */ assert_param(IS_TIM2_IC_PRESCALER_OK(TIM2_IC3Prescaler)); /* Reset the IC1PSC Bits &Set the IC1PSC value */ TIM2->CCMR3 = (uint8_t)((uint8_t)(TIM2->CCMR3 & (uint8_t)(~TIM2_CCMR_ICxPSC)) | (uint8_t)TIM2_IC3Prescaler); } /** * @brief Gets the TIM2 Input Capture 1 value. * @param None * @retval Capture Compare 1 Register value. */ uint16_t TIM2_GetCapture1(void) { /* Get the Capture 1 Register value */ uint16_t tmpccr1 = 0; uint8_t tmpccr1l=0, tmpccr1h=0; tmpccr1h = TIM2->CCR1H; tmpccr1l = TIM2->CCR1L; tmpccr1 = (uint16_t)(tmpccr1l); tmpccr1 |= (uint16_t)((uint16_t)tmpccr1h << 8); /* Get the Capture 1 Register value */ return (uint16_t)tmpccr1; } /** * @brief Gets the TIM2 Input Capture 2 value. * @param None * @retval Capture Compare 2 Register value. */ uint16_t TIM2_GetCapture2(void) { /* Get the Capture 2 Register value */ uint16_t tmpccr2 = 0; uint8_t tmpccr2l=0, tmpccr2h=0; tmpccr2h = TIM2->CCR2H; tmpccr2l = TIM2->CCR2L; tmpccr2 = (uint16_t)(tmpccr2l); tmpccr2 |= (uint16_t)((uint16_t)tmpccr2h << 8); /* Get the Capture 2 Register value */ return (uint16_t)tmpccr2; } /** * @brief Gets the TIM2 Input Capture 3 value. * @param None * @retval Capture Compare 3 Register value. */ uint16_t TIM2_GetCapture3(void) { /* Get the Capture 3 Register value */ uint16_t tmpccr3 = 0; uint8_t tmpccr3l=0, tmpccr3h=0; tmpccr3h = TIM2->CCR3H; tmpccr3l = TIM2->CCR3L; tmpccr3 = (uint16_t)(tmpccr3l); tmpccr3 |= (uint16_t)((uint16_t)tmpccr3h << 8); /* Get the Capture 3 Register value */ return (uint16_t)tmpccr3; } /** * @brief Gets the TIM2 Counter value. * @param None * @retval Counter Register value. */ uint16_t TIM2_GetCounter(void) { uint16_t tmpcntr = 0; tmpcntr = ((uint16_t)TIM2->CNTRH << 8); /* Get the Counter Register value */ return (uint16_t)( tmpcntr| (uint16_t)(TIM2->CNTRL)); } /** * @brief Gets the TIM2 Prescaler value. * @param None * @retval Prescaler Register configuration value @ref TIM2_Prescaler_TypeDef. */ TIM2_Prescaler_TypeDef TIM2_GetPrescaler(void) { /* Get the Prescaler Register value */ return (TIM2_Prescaler_TypeDef)(TIM2->PSCR); } /** * @brief Checks whether the specified TIM2 flag is set or not. * @param TIM2_FLAG specifies the flag to check. * This parameter can be one of the following values: * - TIM2_FLAG_UPDATE: TIM2 update Flag * - TIM2_FLAG_CC1: TIM2 Capture Compare 1 Flag * - TIM2_FLAG_CC2: TIM2 Capture Compare 2 Flag * - TIM2_FLAG_CC3: TIM2 Capture Compare 3 Flag * - TIM2_FLAG_CC1OF: TIM2 Capture Compare 1 over capture Flag * - TIM2_FLAG_CC2OF: TIM2 Capture Compare 2 over capture Flag * - TIM2_FLAG_CC3OF: TIM2 Capture Compare 3 over capture Flag * @retval FlagStatus The new state of TIM2_FLAG (SET or RESET). */ FlagStatus TIM2_GetFlagStatus(TIM2_FLAG_TypeDef TIM2_FLAG) { FlagStatus bitstatus = RESET; uint8_t tim2_flag_l = 0, tim2_flag_h = 0; /* Check the parameters */ assert_param(IS_TIM2_GET_FLAG_OK(TIM2_FLAG)); tim2_flag_l = (uint8_t)(TIM2->SR1 & (uint8_t)TIM2_FLAG); tim2_flag_h = (uint8_t)((uint16_t)TIM2_FLAG >> 8); if ((tim2_flag_l | (uint8_t)(TIM2->SR2 & tim2_flag_h)) != (uint8_t)RESET ) { bitstatus = SET; } else { bitstatus = RESET; } return (FlagStatus)bitstatus; } /** * @brief Clears the TIM2’s pending flags. * @param TIM2_FLAG specifies the flag to clear. * This parameter can be one of the following values: * - TIM2_FLAG_UPDATE: TIM2 update Flag * - TIM2_FLAG_CC1: TIM2 Capture Compare 1 Flag * - TIM2_FLAG_CC2: TIM2 Capture Compare 2 Flag * - TIM2_FLAG_CC3: TIM2 Capture Compare 3 Flag * - TIM2_FLAG_CC1OF: TIM2 Capture Compare 1 over capture Flag * - TIM2_FLAG_CC2OF: TIM2 Capture Compare 2 over capture Flag * - TIM2_FLAG_CC3OF: TIM2 Capture Compare 3 over capture Flag * @retval None. */ void TIM2_ClearFlag(TIM2_FLAG_TypeDef TIM2_FLAG) { /* Check the parameters */ assert_param(IS_TIM2_CLEAR_FLAG_OK(TIM2_FLAG)); /* Clear the flags (rc_w0) clear this bit by writing 0. Writing ‘1’ has no effect*/ TIM2->SR1 = (uint8_t)(~((uint8_t)(TIM2_FLAG))); TIM2->SR2 = (uint8_t)(~((uint8_t)((uint8_t)TIM2_FLAG >> 8))); } /** * @brief Checks whether the TIM2 interrupt has occurred or not. * @param TIM2_IT specifies the TIM2 interrupt source to check. * This parameter can be one of the following values: * - TIM2_IT_UPDATE: TIM2 update Interrupt source * - TIM2_IT_CC1: TIM2 Capture Compare 1 Interrupt source * - TIM2_IT_CC2: TIM2 Capture Compare 2 Interrupt source * - TIM2_IT_CC3: TIM2 Capture Compare 3 Interrupt source * @retval ITStatus The new state of the TIM2_IT(SET or RESET). */ ITStatus TIM2_GetITStatus(TIM2_IT_TypeDef TIM2_IT) { ITStatus bitstatus = RESET; uint8_t TIM2_itStatus = 0, TIM2_itEnable = 0; /* Check the parameters */ assert_param(IS_TIM2_GET_IT_OK(TIM2_IT)); TIM2_itStatus = (uint8_t)(TIM2->SR1 & TIM2_IT); TIM2_itEnable = (uint8_t)(TIM2->IER & TIM2_IT); if ((TIM2_itStatus != (uint8_t)RESET ) && (TIM2_itEnable != (uint8_t)RESET )) { bitstatus = SET; } else { bitstatus = RESET; } return (ITStatus)(bitstatus); } /** * @brief Clears the TIM2's interrupt pending bits. * @param TIM2_IT specifies the pending bit to clear. * This parameter can be one of the following values: * - TIM2_IT_UPDATE: TIM2 update Interrupt source * - TIM2_IT_CC1: TIM2 Capture Compare 1 Interrupt source * - TIM2_IT_CC2: TIM2 Capture Compare 2 Interrupt source * - TIM2_IT_CC3: TIM2 Capture Compare 3 Interrupt source * @retval None. */ void TIM2_ClearITPendingBit(TIM2_IT_TypeDef TIM2_IT) { /* Check the parameters */ assert_param(IS_TIM2_IT_OK(TIM2_IT)); /* Clear the IT pending Bit */ TIM2->SR1 = (uint8_t)(~TIM2_IT); } /** * @brief Configure the TI1 as Input. * @param TIM2_ICPolarity The Input Polarity. * This parameter can be one of the following values: * - TIM2_ICPOLARITY_FALLING * - TIM2_ICPOLARITY_RISING * @param TIM2_ICSelection specifies the input to be used. * This parameter can be one of the following values: * - TIM2_ICSELECTION_DIRECTTI: TIM2 Input 1 is selected to * be connected to IC1. * - TIM2_ICSELECTION_INDIRECTTI: TIM2 Input 1 is selected to * be connected to IC2. * @param TIM2_ICFilter Specifies the Input Capture Filter. * This parameter must be a value between 0x00 and 0x0F. * @retval None */ static void TI1_Config(uint8_t TIM2_ICPolarity, uint8_t TIM2_ICSelection, uint8_t TIM2_ICFilter) { /* Disable the Channel 1: Reset the CCE Bit */ TIM2->CCER1 &= (uint8_t)(~TIM2_CCER1_CC1E); /* Select the Input and set the filter */ TIM2->CCMR1 = (uint8_t)((uint8_t)(TIM2->CCMR1 & (uint8_t)(~(uint8_t)( TIM2_CCMR_CCxS | TIM2_CCMR_ICxF ))) | (uint8_t)(((TIM2_ICSelection)) | ((uint8_t)( TIM2_ICFilter << 4)))); /* Select the Polarity */ if (TIM2_ICPolarity != TIM2_ICPOLARITY_RISING) { TIM2->CCER1 |= TIM2_CCER1_CC1P; } else { TIM2->CCER1 &= (uint8_t)(~TIM2_CCER1_CC1P); } /* Set the CCE Bit */ TIM2->CCER1 |= TIM2_CCER1_CC1E; } /** * @brief Configure the TI2 as Input. * @param TIM2_ICPolarity The Input Polarity. * This parameter can be one of the following values: * - TIM2_ICPOLARITY_FALLING * - TIM2_ICPOLARITY_RISING * @param TIM2_ICSelection specifies the input to be used. * This parameter can be one of the following values: * - TIM2_ICSELECTION_DIRECTTI: TIM2 Input 2 is selected to * be connected to IC2. * - TIM2_ICSELECTION_INDIRECTTI: TIM2 Input 2 is selected to * be connected to IC1. * @param TIM2_ICFilter Specifies the Input Capture Filter. * This parameter must be a value between 0x00 and 0x0F. * @retval None */ static void TI2_Config(uint8_t TIM2_ICPolarity, uint8_t TIM2_ICSelection, uint8_t TIM2_ICFilter) { /* Disable the Channel 2: Reset the CCE Bit */ TIM2->CCER1 &= (uint8_t)(~TIM2_CCER1_CC2E); /* Select the Input and set the filter */ TIM2->CCMR2 = (uint8_t)((uint8_t)(TIM2->CCMR2 & (uint8_t)(~(uint8_t)( TIM2_CCMR_CCxS | TIM2_CCMR_ICxF ))) | (uint8_t)(( (TIM2_ICSelection)) | ((uint8_t)( TIM2_ICFilter << 4)))); /* Select the Polarity */ if (TIM2_ICPolarity != TIM2_ICPOLARITY_RISING) { TIM2->CCER1 |= TIM2_CCER1_CC2P; } else { TIM2->CCER1 &= (uint8_t)(~TIM2_CCER1_CC2P); } /* Set the CCE Bit */ TIM2->CCER1 |= TIM2_CCER1_CC2E; } /** * @brief Configure the TI3 as Input. * @param TIM2_ICPolarity The Input Polarity. * This parameter can be one of the following values: * - TIM2_ICPOLARITY_FALLING * - TIM2_ICPOLARITY_RISING * @param TIM2_ICSelection specifies the input to be used. * This parameter can be one of the following values: * - TIM2_ICSELECTION_DIRECTTI: TIM2 Input 3 is selected to * be connected to IC3. * @param TIM2_ICFilter Specifies the Input Capture Filter. * This parameter must be a value between 0x00 and 0x0F. * @retval None */ static void TI3_Config(uint8_t TIM2_ICPolarity, uint8_t TIM2_ICSelection, uint8_t TIM2_ICFilter) { /* Disable the Channel 3: Reset the CCE Bit */ TIM2->CCER2 &= (uint8_t)(~TIM2_CCER2_CC3E); /* Select the Input and set the filter */ TIM2->CCMR3 = (uint8_t)((uint8_t)(TIM2->CCMR3 & (uint8_t)(~( TIM2_CCMR_CCxS | TIM2_CCMR_ICxF))) | (uint8_t)(( (TIM2_ICSelection)) | ((uint8_t)( TIM2_ICFilter << 4)))); /* Select the Polarity */ if (TIM2_ICPolarity != TIM2_ICPOLARITY_RISING) { TIM2->CCER2 |= TIM2_CCER2_CC3P; } else { TIM2->CCER2 &= (uint8_t)(~TIM2_CCER2_CC3P); } /* Set the CCE Bit */ TIM2->CCER2 |= TIM2_CCER2_CC3E; } /** * @} */ /** * @} */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/