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stm8s_tim3.c
/** ****************************************************************************** * @file stm8s_tim3.c * @author MCD Application Team * @version V2.2.0 * @date 30-September-2014 * @brief This file contains all the functions for the TIM3 peripheral. ****************************************************************************** * @attention * * <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2> * * 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_tim3.h" /** @addtogroup STM8S_StdPeriph_Driver * @{ */ /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ static void TI1_Config(uint8_t TIM3_ICPolarity, uint8_t TIM3_ICSelection, uint8_t TIM3_ICFilter); static void TI2_Config(uint8_t TIM3_ICPolarity, uint8_t TIM3_ICSelection, uint8_t TIM3_ICFilter); /** * @addtogroup TIM3_Public_Functions * @{ */ /** * @brief Deinitializes the TIM3 peripheral registers to their default reset values. * @param None * @retval None */ void TIM3_DeInit(void) { TIM3->CR1 = (uint8_t)TIM3_CR1_RESET_VALUE; TIM3->IER = (uint8_t)TIM3_IER_RESET_VALUE; TIM3->SR2 = (uint8_t)TIM3_SR2_RESET_VALUE; /* Disable channels */ TIM3->CCER1 = (uint8_t)TIM3_CCER1_RESET_VALUE; /* Then reset channel registers: it also works if lock level is equal to 2 or 3 */ TIM3->CCER1 = (uint8_t)TIM3_CCER1_RESET_VALUE; TIM3->CCMR1 = (uint8_t)TIM3_CCMR1_RESET_VALUE; TIM3->CCMR2 = (uint8_t)TIM3_CCMR2_RESET_VALUE; TIM3->CNTRH = (uint8_t)TIM3_CNTRH_RESET_VALUE; TIM3->CNTRL = (uint8_t)TIM3_CNTRL_RESET_VALUE; TIM3->PSCR = (uint8_t)TIM3_PSCR_RESET_VALUE; TIM3->ARRH = (uint8_t)TIM3_ARRH_RESET_VALUE; TIM3->ARRL = (uint8_t)TIM3_ARRL_RESET_VALUE; TIM3->CCR1H = (uint8_t)TIM3_CCR1H_RESET_VALUE; TIM3->CCR1L = (uint8_t)TIM3_CCR1L_RESET_VALUE; TIM3->CCR2H = (uint8_t)TIM3_CCR2H_RESET_VALUE; TIM3->CCR2L = (uint8_t)TIM3_CCR2L_RESET_VALUE; TIM3->SR1 = (uint8_t)TIM3_SR1_RESET_VALUE; } /** * @brief Initializes the TIM3 Time Base Unit according to the specified parameters. * @param TIM3_Prescaler specifies the Prescaler from TIM3_Prescaler_TypeDef. * @param TIM3_Period specifies the Period value. * @retval None */ void TIM3_TimeBaseInit( TIM3_Prescaler_TypeDef TIM3_Prescaler, uint16_t TIM3_Period) { /* Set the Prescaler value */ TIM3->PSCR = (uint8_t)(TIM3_Prescaler); /* Set the Autoreload value */ TIM3->ARRH = (uint8_t)(TIM3_Period >> 8); TIM3->ARRL = (uint8_t)(TIM3_Period); } /** * @brief Initializes the TIM3 Channel1 according to the specified parameters. * @param TIM3_OCMode specifies the Output Compare mode from @ref TIM3_OCMode_TypeDef. * @param TIM3_OutputState specifies the Output State from @ref TIM3_OutputState_TypeDef. * @param TIM3_Pulse specifies the Pulse width value. * @param TIM3_OCPolarity specifies the Output Compare Polarity from @ref TIM3_OCPolarity_TypeDef. * @retval None */ void TIM3_OC1Init(TIM3_OCMode_TypeDef TIM3_OCMode, TIM3_OutputState_TypeDef TIM3_OutputState, uint16_t TIM3_Pulse, TIM3_OCPolarity_TypeDef TIM3_OCPolarity) { /* Check the parameters */ assert_param(IS_TIM3_OC_MODE_OK(TIM3_OCMode)); assert_param(IS_TIM3_OUTPUT_STATE_OK(TIM3_OutputState)); assert_param(IS_TIM3_OC_POLARITY_OK(TIM3_OCPolarity)); /* Disable the Channel 1: Reset the CCE Bit, Set the Output State , the Output Polarity */ TIM3->CCER1 &= (uint8_t)(~( TIM3_CCER1_CC1E | TIM3_CCER1_CC1P)); /* Set the Output State & Set the Output Polarity */ TIM3->CCER1 |= (uint8_t)((uint8_t)(TIM3_OutputState & TIM3_CCER1_CC1E ) | (uint8_t)(TIM3_OCPolarity & TIM3_CCER1_CC1P )); /* Reset the Output Compare Bits & Set the Output Compare Mode */ TIM3->CCMR1 = (uint8_t)((uint8_t)(TIM3->CCMR1 & (uint8_t)(~TIM3_CCMR_OCM)) | (uint8_t)TIM3_OCMode); /* Set the Pulse value */ TIM3->CCR1H = (uint8_t)(TIM3_Pulse >> 8); TIM3->CCR1L = (uint8_t)(TIM3_Pulse); } /** * @brief Initializes the TIM3 Channel2 according to the specified parameters. * @param TIM3_OCMode specifies the Output Compare mode from @ref TIM3_OCMode_TypeDef. * @param TIM3_OutputState specifies the Output State from @ref TIM3_OutputState_TypeDef. * @param TIM3_Pulse specifies the Pulse width value. * @param TIM3_OCPolarity specifies the Output Compare Polarity from @ref TIM3_OCPolarity_TypeDef. * @retval None */ void TIM3_OC2Init(TIM3_OCMode_TypeDef TIM3_OCMode, TIM3_OutputState_TypeDef TIM3_OutputState, uint16_t TIM3_Pulse, TIM3_OCPolarity_TypeDef TIM3_OCPolarity) { /* Check the parameters */ assert_param(IS_TIM3_OC_MODE_OK(TIM3_OCMode)); assert_param(IS_TIM3_OUTPUT_STATE_OK(TIM3_OutputState)); assert_param(IS_TIM3_OC_POLARITY_OK(TIM3_OCPolarity)); /* Disable the Channel 1: Reset the CCE Bit, Set the Output State, the Output Polarity */ TIM3->CCER1 &= (uint8_t)(~( TIM3_CCER1_CC2E | TIM3_CCER1_CC2P )); /* Set the Output State & Set the Output Polarity */ TIM3->CCER1 |= (uint8_t)((uint8_t)(TIM3_OutputState & TIM3_CCER1_CC2E ) | (uint8_t)(TIM3_OCPolarity & TIM3_CCER1_CC2P )); /* Reset the Output Compare Bits & Set the Output Compare Mode */ TIM3->CCMR2 = (uint8_t)((uint8_t)(TIM3->CCMR2 & (uint8_t)(~TIM3_CCMR_OCM)) | (uint8_t)TIM3_OCMode); /* Set the Pulse value */ TIM3->CCR2H = (uint8_t)(TIM3_Pulse >> 8); TIM3->CCR2L = (uint8_t)(TIM3_Pulse); } /** * @brief Initializes the TIM3 peripheral according to the specified parameters. * @param TIM3_Channel specifies the Input Capture Channel from @ref TIM3_Channel_TypeDef. * @param TIM3_ICPolarity specifies the Input Capture Polarity from @ref TIM3_ICPolarity_TypeDef. * @param TIM3_ICSelection specifies the Input Capture Selection from @ref TIM3_ICSelection_TypeDef. * @param TIM3_ICPrescaler specifies the Input Capture Prescaler from @ref TIM3_ICPSC_TypeDef. * @param TIM3_ICFilter specifies the Input Capture Filter value (value can be an integer from 0x00 to 0x0F). * @retval None */ void TIM3_ICInit(TIM3_Channel_TypeDef TIM3_Channel, TIM3_ICPolarity_TypeDef TIM3_ICPolarity, TIM3_ICSelection_TypeDef TIM3_ICSelection, TIM3_ICPSC_TypeDef TIM3_ICPrescaler, uint8_t TIM3_ICFilter) { /* Check the parameters */ assert_param(IS_TIM3_CHANNEL_OK(TIM3_Channel)); assert_param(IS_TIM3_IC_POLARITY_OK(TIM3_ICPolarity)); assert_param(IS_TIM3_IC_SELECTION_OK(TIM3_ICSelection)); assert_param(IS_TIM3_IC_PRESCALER_OK(TIM3_ICPrescaler)); assert_param(IS_TIM3_IC_FILTER_OK(TIM3_ICFilter)); if (TIM3_Channel != TIM3_CHANNEL_2) { /* TI1 Configuration */ TI1_Config((uint8_t)TIM3_ICPolarity, (uint8_t)TIM3_ICSelection, (uint8_t)TIM3_ICFilter); /* Set the Input Capture Prescaler value */ TIM3_SetIC1Prescaler(TIM3_ICPrescaler); } else { /* TI2 Configuration */ TI2_Config((uint8_t)TIM3_ICPolarity, (uint8_t)TIM3_ICSelection, (uint8_t)TIM3_ICFilter); /* Set the Input Capture Prescaler value */ TIM3_SetIC2Prescaler(TIM3_ICPrescaler); } } /** * @brief Configures the TIM3 peripheral in PWM Input Mode according to the specified parameters. * @param TIM3_Channel specifies the Input Capture Channel from @ref TIM3_Channel_TypeDef. * @param TIM3_ICPolarity specifies the Input Capture Polarity from @ref TIM3_ICPolarity_TypeDef. * @param TIM3_ICSelection specifies the Input Capture Selection from @ref TIM3_ICSelection_TypeDef. * @param TIM3_ICPrescaler specifies the Input Capture Prescaler from @ref TIM3_ICPSC_TypeDef. * @param TIM3_ICFilter specifies the Input Capture Filter value (value can be an integer from 0x00 to 0x0F). * @retval None */ void TIM3_PWMIConfig(TIM3_Channel_TypeDef TIM3_Channel, TIM3_ICPolarity_TypeDef TIM3_ICPolarity, TIM3_ICSelection_TypeDef TIM3_ICSelection, TIM3_ICPSC_TypeDef TIM3_ICPrescaler, uint8_t TIM3_ICFilter) { uint8_t icpolarity = (uint8_t)TIM3_ICPOLARITY_RISING; uint8_t icselection = (uint8_t)TIM3_ICSELECTION_DIRECTTI; /* Check the parameters */ assert_param(IS_TIM3_PWMI_CHANNEL_OK(TIM3_Channel)); assert_param(IS_TIM3_IC_POLARITY_OK(TIM3_ICPolarity)); assert_param(IS_TIM3_IC_SELECTION_OK(TIM3_ICSelection)); assert_param(IS_TIM3_IC_PRESCALER_OK(TIM3_ICPrescaler)); /* Select the Opposite Input Polarity */ if (TIM3_ICPolarity != TIM3_ICPOLARITY_FALLING) { icpolarity = (uint8_t)TIM3_ICPOLARITY_FALLING; } else { icpolarity = (uint8_t)TIM3_ICPOLARITY_RISING; } /* Select the Opposite Input */ if (TIM3_ICSelection == TIM3_ICSELECTION_DIRECTTI) { icselection = (uint8_t)TIM3_ICSELECTION_INDIRECTTI; } else { icselection = (uint8_t)TIM3_ICSELECTION_DIRECTTI; } if (TIM3_Channel != TIM3_CHANNEL_2) { /* TI1 Configuration */ TI1_Config((uint8_t)TIM3_ICPolarity, (uint8_t)TIM3_ICSelection, (uint8_t)TIM3_ICFilter); /* Set the Input Capture Prescaler value */ TIM3_SetIC1Prescaler(TIM3_ICPrescaler); /* TI2 Configuration */ TI2_Config(icpolarity, icselection, TIM3_ICFilter); /* Set the Input Capture Prescaler value */ TIM3_SetIC2Prescaler(TIM3_ICPrescaler); } else { /* TI2 Configuration */ TI2_Config((uint8_t)TIM3_ICPolarity, (uint8_t)TIM3_ICSelection, (uint8_t)TIM3_ICFilter); /* Set the Input Capture Prescaler value */ TIM3_SetIC2Prescaler(TIM3_ICPrescaler); /* TI1 Configuration */ TI1_Config(icpolarity, icselection, TIM3_ICFilter); /* Set the Input Capture Prescaler value */ TIM3_SetIC1Prescaler(TIM3_ICPrescaler); } } /** * @brief Enables or disables the TIM3 peripheral. * @param NewState new state of the TIM3 peripheral. This parameter can * be ENABLE or DISABLE. * @retval None */ void TIM3_Cmd(FunctionalState NewState) { /* Check the parameters */ assert_param(IS_FUNCTIONALSTATE_OK(NewState)); /* set or Reset the CEN Bit */ if (NewState != DISABLE) { TIM3->CR1 |= (uint8_t)TIM3_CR1_CEN; } else { TIM3->CR1 &= (uint8_t)(~TIM3_CR1_CEN); } } /** * @brief Enables or disables the specified TIM3 interrupts. * @param NewState new state of the TIM3 peripheral. * This parameter can be: ENABLE or DISABLE. * @param TIM3_IT specifies the TIM3 interrupts sources to be enabled or disabled. * This parameter can be any combination of the following values: * - TIM3_IT_UPDATE: TIM3 update Interrupt source * - TIM3_IT_CC1: TIM3 Capture Compare 1 Interrupt source * - TIM3_IT_CC2: TIM3 Capture Compare 2 Interrupt source * - TIM3_IT_CC3: TIM3 Capture Compare 3 Interrupt source * @param NewState new state of the TIM3 peripheral. * @retval None */ void TIM3_ITConfig(TIM3_IT_TypeDef TIM3_IT, FunctionalState NewState) { /* Check the parameters */ assert_param(IS_TIM3_IT_OK(TIM3_IT)); assert_param(IS_FUNCTIONALSTATE_OK(NewState)); if (NewState != DISABLE) { /* Enable the Interrupt sources */ TIM3->IER |= (uint8_t)TIM3_IT; } else { /* Disable the Interrupt sources */ TIM3->IER &= (uint8_t)(~TIM3_IT); } } /** * @brief Enables or Disables the TIM3 Update event. * @param NewState new state of the TIM3 peripheral Preload register. This parameter can * be ENABLE or DISABLE. * @retval None */ void TIM3_UpdateDisableConfig(FunctionalState NewState) { /* Check the parameters */ assert_param(IS_FUNCTIONALSTATE_OK(NewState)); /* Set or Reset the UDIS Bit */ if (NewState != DISABLE) { TIM3->CR1 |= TIM3_CR1_UDIS; } else { TIM3->CR1 &= (uint8_t)(~TIM3_CR1_UDIS); } } /** * @brief Selects the TIM3 Update Request Interrupt source. * @param TIM3_UpdateSource specifies the Update source. * This parameter can be one of the following values * - TIM3_UPDATESOURCE_REGULAR * - TIM3_UPDATESOURCE_GLOBAL * @retval None */ void TIM3_UpdateRequestConfig(TIM3_UpdateSource_TypeDef TIM3_UpdateSource) { /* Check the parameters */ assert_param(IS_TIM3_UPDATE_SOURCE_OK(TIM3_UpdateSource)); /* Set or Reset the URS Bit */ if (TIM3_UpdateSource != TIM3_UPDATESOURCE_GLOBAL) { TIM3->CR1 |= TIM3_CR1_URS; } else { TIM3->CR1 &= (uint8_t)(~TIM3_CR1_URS); } } /** * @brief Selects the TIM3s One Pulse Mode. * @param TIM3_OPMode specifies the OPM Mode to be used. * This parameter can be one of the following values * - TIM3_OPMODE_SINGLE * - TIM3_OPMODE_REPETITIVE * @retval None */ void TIM3_SelectOnePulseMode(TIM3_OPMode_TypeDef TIM3_OPMode) { /* Check the parameters */ assert_param(IS_TIM3_OPM_MODE_OK(TIM3_OPMode)); /* Set or Reset the OPM Bit */ if (TIM3_OPMode != TIM3_OPMODE_REPETITIVE) { TIM3->CR1 |= TIM3_CR1_OPM; } else { TIM3->CR1 &= (uint8_t)(~TIM3_CR1_OPM); } } /** * @brief Configures the TIM3 Prescaler. * @param Prescaler specifies the Prescaler Register value * This parameter can be one of the following values * - TIM3_PRESCALER_1 * - TIM3_PRESCALER_2 * - TIM3_PRESCALER_4 * - TIM3_PRESCALER_8 * - TIM3_PRESCALER_16 * - TIM3_PRESCALER_32 * - TIM3_PRESCALER_64 * - TIM3_PRESCALER_128 * - TIM3_PRESCALER_256 * - TIM3_PRESCALER_512 * - TIM3_PRESCALER_1024 * - TIM3_PRESCALER_2048 * - TIM3_PRESCALER_4096 * - TIM3_PRESCALER_8192 * - TIM3_PRESCALER_16384 * - TIM3_PRESCALER_32768 * @param TIM3_PSCReloadMode specifies the TIM3 Prescaler Reload mode. * This parameter can be one of the following values * - TIM3_PSCRELOADMODE_IMMEDIATE: The Prescaler is loaded * immediately. * - TIM3_PSCRELOADMODE_UPDATE: The Prescaler is loaded at * the update event. * @retval None */ void TIM3_PrescalerConfig(TIM3_Prescaler_TypeDef Prescaler, TIM3_PSCReloadMode_TypeDef TIM3_PSCReloadMode) { /* Check the parameters */ assert_param(IS_TIM3_PRESCALER_RELOAD_OK(TIM3_PSCReloadMode)); assert_param(IS_TIM3_PRESCALER_OK(Prescaler)); /* Set the Prescaler value */ TIM3->PSCR = (uint8_t)Prescaler; /* Set or reset the UG Bit */ TIM3->EGR = (uint8_t)TIM3_PSCReloadMode; } /** * @brief Forces the TIM3 Channel1 output waveform to active or inactive level. * @param TIM3_ForcedAction specifies the forced Action to be set to the output waveform. * This parameter can be one of the following values: * - TIM3_FORCEDACTION_ACTIVE: Force active level on OC1REF * - TIM3_FORCEDACTION_INACTIVE: Force inactive level on * OC1REF. * @retval None */ void TIM3_ForcedOC1Config(TIM3_ForcedAction_TypeDef TIM3_ForcedAction) { /* Check the parameters */ assert_param(IS_TIM3_FORCED_ACTION_OK(TIM3_ForcedAction)); /* Reset the OCM Bits & Configure the Forced output Mode */ TIM3->CCMR1 = (uint8_t)((uint8_t)(TIM3->CCMR1 & (uint8_t)(~TIM3_CCMR_OCM)) | (uint8_t)TIM3_ForcedAction); } /** * @brief Forces the TIM3 Channel2 output waveform to active or inactive level. * @param TIM3_ForcedAction specifies the forced Action to be set to the output waveform. * This parameter can be one of the following values: * - TIM3_FORCEDACTION_ACTIVE: Force active level on OC2REF * - TIM3_FORCEDACTION_INACTIVE: Force inactive level on * OC2REF. * @retval None */ void TIM3_ForcedOC2Config(TIM3_ForcedAction_TypeDef TIM3_ForcedAction) { /* Check the parameters */ assert_param(IS_TIM3_FORCED_ACTION_OK(TIM3_ForcedAction)); /* Reset the OCM Bits & Configure the Forced output Mode */ TIM3->CCMR2 = (uint8_t)((uint8_t)(TIM3->CCMR2 & (uint8_t)(~TIM3_CCMR_OCM)) | (uint8_t)TIM3_ForcedAction); } /** * @brief Enables or disables TIM3 peripheral Preload register on ARR. * @param NewState new state of the TIM3 peripheral Preload register. * This parameter can be ENABLE or DISABLE. * @retval None */ void TIM3_ARRPreloadConfig(FunctionalState NewState) { /* Check the parameters */ assert_param(IS_FUNCTIONALSTATE_OK(NewState)); /* Set or Reset the ARPE Bit */ if (NewState != DISABLE) { TIM3->CR1 |= TIM3_CR1_ARPE; } else { TIM3->CR1 &= (uint8_t)(~TIM3_CR1_ARPE); } } /** * @brief Enables or disables the TIM3 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 TIM3_OC1PreloadConfig(FunctionalState NewState) { /* Check the parameters */ assert_param(IS_FUNCTIONALSTATE_OK(NewState)); /* Set or Reset the OC1PE Bit */ if (NewState != DISABLE) { TIM3->CCMR1 |= TIM3_CCMR_OCxPE; } else { TIM3->CCMR1 &= (uint8_t)(~TIM3_CCMR_OCxPE); } } /** * @brief Enables or disables the TIM3 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 TIM3_OC2PreloadConfig(FunctionalState NewState) { /* Check the parameters */ assert_param(IS_FUNCTIONALSTATE_OK(NewState)); /* Set or Reset the OC2PE Bit */ if (NewState != DISABLE) { TIM3->CCMR2 |= TIM3_CCMR_OCxPE; } else { TIM3->CCMR2 &= (uint8_t)(~TIM3_CCMR_OCxPE); } } /** * @brief Configures the TIM3 event to be generated by software. * @param TIM3_EventSource specifies the event source. * This parameter can be one of the following values: * - TIM3_EVENTSOURCE_UPDATE: TIM3 update Event source * - TIM3_EVENTSOURCE_CC1: TIM3 Capture Compare 1 Event source * - TIM3_EVENTSOURCE_CC2: TIM3 Capture Compare 2 Event source * @retval None */ void TIM3_GenerateEvent(TIM3_EventSource_TypeDef TIM3_EventSource) { /* Check the parameters */ assert_param(IS_TIM3_EVENT_SOURCE_OK(TIM3_EventSource)); /* Set the event sources */ TIM3->EGR = (uint8_t)TIM3_EventSource; } /** * @brief Configures the TIM3 Channel 1 polarity. * @param TIM3_OCPolarity specifies the OC1 Polarity. * This parameter can be one of the following values: * - TIM3_OCPOLARITY_LOW: Output Compare active low * - TIM3_OCPOLARITY_HIGH: Output Compare active high * @retval None */ void TIM3_OC1PolarityConfig(TIM3_OCPolarity_TypeDef TIM3_OCPolarity) { /* Check the parameters */ assert_param(IS_TIM3_OC_POLARITY_OK(TIM3_OCPolarity)); /* Set or Reset the CC1P Bit */ if (TIM3_OCPolarity != TIM3_OCPOLARITY_HIGH) { TIM3->CCER1 |= TIM3_CCER1_CC1P; } else { TIM3->CCER1 &= (uint8_t)(~TIM3_CCER1_CC1P); } } /** * @brief Configures the TIM3 Channel 2 polarity. * @param TIM3_OCPolarity specifies the OC2 Polarity. * This parameter can be one of the following values: * - TIM3_OCPOLARITY_LOW: Output Compare active low * - TIM3_OCPOLARITY_HIGH: Output Compare active high * @retval None */ void TIM3_OC2PolarityConfig(TIM3_OCPolarity_TypeDef TIM3_OCPolarity) { /* Check the parameters */ assert_param(IS_TIM3_OC_POLARITY_OK(TIM3_OCPolarity)); /* Set or Reset the CC2P Bit */ if (TIM3_OCPolarity != TIM3_OCPOLARITY_HIGH) { TIM3->CCER1 |= TIM3_CCER1_CC2P; } else { TIM3->CCER1 &= (uint8_t)(~TIM3_CCER1_CC2P); } } /** * @brief Enables or disables the TIM3 Capture Compare Channel x. * @param TIM3_Channel specifies the TIM3 Channel. * This parameter can be one of the following values: * - TIM3_CHANNEL_1: TIM3 Channel1 * - TIM3_CHANNEL_2: TIM3 Channel2 * @param NewState specifies the TIM3 Channel CCxE bit new state. * This parameter can be: ENABLE or DISABLE. * @retval None */ void TIM3_CCxCmd(TIM3_Channel_TypeDef TIM3_Channel, FunctionalState NewState) { /* Check the parameters */ assert_param(IS_TIM3_CHANNEL_OK(TIM3_Channel)); assert_param(IS_FUNCTIONALSTATE_OK(NewState)); if (TIM3_Channel == TIM3_CHANNEL_1) { /* Set or Reset the CC1E Bit */ if (NewState != DISABLE) { TIM3->CCER1 |= TIM3_CCER1_CC1E; } else { TIM3->CCER1 &= (uint8_t)(~TIM3_CCER1_CC1E); } } else { /* Set or Reset the CC2E Bit */ if (NewState != DISABLE) { TIM3->CCER1 |= TIM3_CCER1_CC2E; } else { TIM3->CCER1 &= (uint8_t)(~TIM3_CCER1_CC2E); } } } /** * @brief Selects the TIM3 Output Compare Mode. This function disables the * selected channel before changing the Output Compare Mode. User has to * enable this channel using TIM3_CCxCmd and TIM3_CCxNCmd functions. * @param TIM3_Channel specifies the TIM3 Channel. * This parameter can be one of the following values: * - TIM3_CHANNEL_1: TIM3 Channel1 * - TIM3_CHANNEL_2: TIM3 Channel2 * @param TIM3_OCMode specifies the TIM3 Output Compare Mode. * This parameter can be one of the following values: * - TIM3_OCMODE_TIMING * - TIM3_OCMODE_ACTIVE * - TIM3_OCMODE_TOGGLE * - TIM3_OCMODE_PWM1 * - TIM3_OCMODE_PWM2 * - TIM3_FORCEDACTION_ACTIVE * - TIM3_FORCEDACTION_INACTIVE * @retval None */ void TIM3_SelectOCxM(TIM3_Channel_TypeDef TIM3_Channel, TIM3_OCMode_TypeDef TIM3_OCMode) { /* Check the parameters */ assert_param(IS_TIM3_CHANNEL_OK(TIM3_Channel)); assert_param(IS_TIM3_OCM_OK(TIM3_OCMode)); if (TIM3_Channel == TIM3_CHANNEL_1) { /* Disable the Channel 1: Reset the CCE Bit */ TIM3->CCER1 &= (uint8_t)(~TIM3_CCER1_CC1E); /* Reset the Output Compare Bits & Set the Output Compare Mode */ TIM3->CCMR1 = (uint8_t)((uint8_t)(TIM3->CCMR1 & (uint8_t)(~TIM3_CCMR_OCM)) | (uint8_t)TIM3_OCMode); } else { /* Disable the Channel 2: Reset the CCE Bit */ TIM3->CCER1 &= (uint8_t)(~TIM3_CCER1_CC2E); /* Reset the Output Compare Bits & Set the Output Compare Mode */ TIM3->CCMR2 = (uint8_t)((uint8_t)(TIM3->CCMR2 & (uint8_t)(~TIM3_CCMR_OCM)) | (uint8_t)TIM3_OCMode); } } /** * @brief Sets the TIM3 Counter Register value. * @param Counter specifies the Counter register new value. * This parameter is between 0x0000 and 0xFFFF. * @retval None */ void TIM3_SetCounter(uint16_t Counter) { /* Set the Counter Register value */ TIM3->CNTRH = (uint8_t)(Counter >> 8); TIM3->CNTRL = (uint8_t)(Counter); } /** * @brief Sets the TIM3 Autoreload Register value. * @param Autoreload specifies the Autoreload register new value. * This parameter is between 0x0000 and 0xFFFF. * @retval None */ void TIM3_SetAutoreload(uint16_t Autoreload) { /* Set the Autoreload Register value */ TIM3->ARRH = (uint8_t)(Autoreload >> 8); TIM3->ARRL = (uint8_t)(Autoreload); } /** * @brief Sets the TIM3 Capture Compare1 Register value. * @param Compare1 specifies the Capture Compare1 register new value. * This parameter is between 0x0000 and 0xFFFF. * @retval None */ void TIM3_SetCompare1(uint16_t Compare1) { /* Set the Capture Compare1 Register value */ TIM3->CCR1H = (uint8_t)(Compare1 >> 8); TIM3->CCR1L = (uint8_t)(Compare1); } /** * @brief Sets the TIM3 Capture Compare2 Register value. * @param Compare2 specifies the Capture Compare2 register new value. * This parameter is between 0x0000 and 0xFFFF. * @retval None */ void TIM3_SetCompare2(uint16_t Compare2) { /* Set the Capture Compare2 Register value */ TIM3->CCR2H = (uint8_t)(Compare2 >> 8); TIM3->CCR2L = (uint8_t)(Compare2); } /** * @brief Sets the TIM3 Input Capture 1 prescaler. * @param TIM3_IC1Prescaler specifies the Input Capture prescaler new value * This parameter can be one of the following values: * - TIM3_ICPSC_DIV1: no prescaler * - TIM3_ICPSC_DIV2: capture is done once every 2 events * - TIM3_ICPSC_DIV4: capture is done once every 4 events * - TIM3_ICPSC_DIV8: capture is done once every 8 events * @retval None */ void TIM3_SetIC1Prescaler(TIM3_ICPSC_TypeDef TIM3_IC1Prescaler) { /* Check the parameters */ assert_param(IS_TIM3_IC_PRESCALER_OK(TIM3_IC1Prescaler)); /* Reset the IC1PSC Bits & Set the IC1PSC value */ TIM3->CCMR1 = (uint8_t)((uint8_t)(TIM3->CCMR1 & (uint8_t)(~TIM3_CCMR_ICxPSC)) | (uint8_t)TIM3_IC1Prescaler); } /** * @brief Sets the TIM3 Input Capture 2 prescaler. * @param TIM3_IC2Prescaler specifies the Input Capture prescaler new value * This parameter can be one of the following values: * - TIM3_ICPSC_DIV1: no prescaler * - TIM3_ICPSC_DIV2: capture is done once every 2 events * - TIM3_ICPSC_DIV4: capture is done once every 4 events * - TIM3_ICPSC_DIV8: capture is done once every 8 events * @retval None */ void TIM3_SetIC2Prescaler(TIM3_ICPSC_TypeDef TIM3_IC2Prescaler) { /* Check the parameters */ assert_param(IS_TIM3_IC_PRESCALER_OK(TIM3_IC2Prescaler)); /* Reset the IC1PSC Bits & Set the IC1PSC value */ TIM3->CCMR2 = (uint8_t)((uint8_t)(TIM3->CCMR2 & (uint8_t)(~TIM3_CCMR_ICxPSC)) | (uint8_t)TIM3_IC2Prescaler); } /** * @brief Gets the TIM3 Input Capture 1 value. * @param None * @retval Capture Compare 1 Register value. */ uint16_t TIM3_GetCapture1(void) { /* Get the Capture 1 Register value */ uint16_t tmpccr1 = 0; uint8_t tmpccr1l=0, tmpccr1h=0; tmpccr1h = TIM3->CCR1H; tmpccr1l = TIM3->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 TIM3 Input Capture 2 value. * @param None * @retval Capture Compare 2 Register value. */ uint16_t TIM3_GetCapture2(void) { /* Get the Capture 2 Register value */ uint16_t tmpccr2 = 0; uint8_t tmpccr2l=0, tmpccr2h=0; tmpccr2h = TIM3->CCR2H; tmpccr2l = TIM3->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 TIM3 Counter value. * @param None * @retval Counter Register value. */ uint16_t TIM3_GetCounter(void) { uint16_t tmpcntr = 0; tmpcntr = ((uint16_t)TIM3->CNTRH << 8); /* Get the Counter Register value */ return (uint16_t)( tmpcntr| (uint16_t)(TIM3->CNTRL)); } /** * @brief Gets the TIM3 Prescaler value. * @param None * @retval Prescaler Register configuration value @ref TIM3_Prescaler_TypeDef. */ TIM3_Prescaler_TypeDef TIM3_GetPrescaler(void) { /* Get the Prescaler Register value */ return (TIM3_Prescaler_TypeDef)(TIM3->PSCR); } /** * @brief Checks whether the specified TIM3 flag is set or not. * @param TIM3_FLAG specifies the flag to check. * This parameter can be one of the following values: * - TIM3_FLAG_UPDATE: TIM3 update Flag * - TIM3_FLAG_CC1: TIM3 Capture Compare 1 Flag * - TIM3_FLAG_CC2: TIM3 Capture Compare 2 Flag * - TIM3_FLAG_CC1OF: TIM3 Capture Compare 1 over capture Flag * - TIM3_FLAG_CC2OF: TIM3 Capture Compare 2 over capture Flag * @retval FlagStatus The new state of TIM3_FLAG (SET or RESET). */ FlagStatus TIM3_GetFlagStatus(TIM3_FLAG_TypeDef TIM3_FLAG) { FlagStatus bitstatus = RESET; uint8_t tim3_flag_l = 0, tim3_flag_h = 0; /* Check the parameters */ assert_param(IS_TIM3_GET_FLAG_OK(TIM3_FLAG)); tim3_flag_l = (uint8_t)(TIM3->SR1 & (uint8_t)TIM3_FLAG); tim3_flag_h = (uint8_t)((uint16_t)TIM3_FLAG >> 8); if (((tim3_flag_l) | (uint8_t)(TIM3->SR2 & tim3_flag_h)) != (uint8_t)RESET ) { bitstatus = SET; } else { bitstatus = RESET; } return (FlagStatus)bitstatus; } /** * @brief Clears the TIM3s pending flags. * @param TIM3_FLAG specifies the flag to clear. * This parameter can be one of the following values: * - TIM3_FLAG_UPDATE: TIM3 update Flag * - TIM3_FLAG_CC1: TIM3 Capture Compare 1 Flag * - TIM3_FLAG_CC2: TIM3 Capture Compare 2 Flag * - TIM3_FLAG_CC1OF: TIM3 Capture Compare 1 over capture Flag * - TIM3_FLAG_CC2OF: TIM3 Capture Compare 2 over capture Flag * @retval None. */ void TIM3_ClearFlag(TIM3_FLAG_TypeDef TIM3_FLAG) { /* Check the parameters */ assert_param(IS_TIM3_CLEAR_FLAG_OK(TIM3_FLAG)); /* Clear the flags (rc_w0) clear this bit by writing 0. Writing 1 has no effect*/ TIM3->SR1 = (uint8_t)(~((uint8_t)(TIM3_FLAG))); TIM3->SR2 = (uint8_t)(~((uint8_t)((uint16_t)TIM3_FLAG >> 8))); } /** * @brief Checks whether the TIM3 interrupt has occurred or not. * @param TIM3_IT specifies the TIM3 interrupt source to check. * This parameter can be one of the following values: * - TIM3_IT_UPDATE: TIM3 update Interrupt source * - TIM3_IT_CC1: TIM3 Capture Compare 1 Interrupt source * - TIM3_IT_CC2: TIM3 Capture Compare 2 Interrupt source * @retval ITStatus The new state of the TIM3_IT(SET or RESET). */ ITStatus TIM3_GetITStatus(TIM3_IT_TypeDef TIM3_IT) { ITStatus bitstatus = RESET; uint8_t TIM3_itStatus = 0, TIM3_itEnable = 0; /* Check the parameters */ assert_param(IS_TIM3_GET_IT_OK(TIM3_IT)); TIM3_itStatus = (uint8_t)(TIM3->SR1 & TIM3_IT); TIM3_itEnable = (uint8_t)(TIM3->IER & TIM3_IT); if ((TIM3_itStatus != (uint8_t)RESET ) && (TIM3_itEnable != (uint8_t)RESET )) { bitstatus = SET; } else { bitstatus = RESET; } return (ITStatus)(bitstatus); } /** * @brief Clears the TIM3's interrupt pending bits. * @param TIM3_IT specifies the pending bit to clear. * This parameter can be one of the following values: * - TIM3_IT_UPDATE: TIM3 update Interrupt source * - TIM3_IT_CC1: TIM3 Capture Compare 1 Interrupt source * - TIM3_IT_CC2: TIM3 Capture Compare 2 Interrupt source * @retval None. */ void TIM3_ClearITPendingBit(TIM3_IT_TypeDef TIM3_IT) { /* Check the parameters */ assert_param(IS_TIM3_IT_OK(TIM3_IT)); /* Clear the IT pending Bit */ TIM3->SR1 = (uint8_t)(~TIM3_IT); } /** * @brief Configure the TI1 as Input. * @param TIM3_ICPolarity The Input Polarity. * This parameter can be one of the following values: * - TIM3_ICPOLARITY_FALLING * - TIM3_ICPOLARITY_RISING * @param TIM3_ICSelection specifies the input to be used. * This parameter can be one of the following values: * - TIM3_ICSELECTION_DIRECTTI: TIM3 Input 1 is selected to * be connected to IC1. * - TIM3_ICSELECTION_INDIRECTTI: TIM3 Input 1 is selected to * be connected to IC2. * @param TIM3_ICFilter Specifies the Input Capture Filter. * This parameter must be a value between 0x00 and 0x0F. * @retval None */ static void TI1_Config(uint8_t TIM3_ICPolarity, uint8_t TIM3_ICSelection, uint8_t TIM3_ICFilter) { /* Disable the Channel 1: Reset the CCE Bit */ TIM3->CCER1 &= (uint8_t)(~TIM3_CCER1_CC1E); /* Select the Input and set the filter */ TIM3->CCMR1 = (uint8_t)((uint8_t)(TIM3->CCMR1 & (uint8_t)(~( TIM3_CCMR_CCxS | TIM3_CCMR_ICxF))) | (uint8_t)(( (TIM3_ICSelection)) | ((uint8_t)( TIM3_ICFilter << 4)))); /* Select the Polarity */ if (TIM3_ICPolarity != TIM3_ICPOLARITY_RISING) { TIM3->CCER1 |= TIM3_CCER1_CC1P; } else { TIM3->CCER1 &= (uint8_t)(~TIM3_CCER1_CC1P); } /* Set the CCE Bit */ TIM3->CCER1 |= TIM3_CCER1_CC1E; } /** * @brief Configure the TI2 as Input. * @param TIM3_ICPolarity The Input Polarity. * This parameter can be one of the following values: * - TIM3_ICPOLARITY_FALLING * - TIM3_ICPOLARITY_RISING * @param TIM3_ICSelection specifies the input to be used. * This parameter can be one of the following values: * - TIM3_ICSELECTION_DIRECTTI: TIM3 Input 2 is selected to * be connected to IC2. * - TIM3_ICSELECTION_INDIRECTTI: TIM3 Input 2 is selected to * be connected to IC1. * @param TIM3_ICFilter Specifies the Input Capture Filter. * This parameter must be a value between 0x00 and 0x0F. * @retval None */ static void TI2_Config(uint8_t TIM3_ICPolarity, uint8_t TIM3_ICSelection, uint8_t TIM3_ICFilter) { /* Disable the Channel 2: Reset the CCE Bit */ TIM3->CCER1 &= (uint8_t)(~TIM3_CCER1_CC2E); /* Select the Input and set the filter */ TIM3->CCMR2 = (uint8_t)((uint8_t)(TIM3->CCMR2 & (uint8_t)(~( TIM3_CCMR_CCxS | TIM3_CCMR_ICxF ))) | (uint8_t)(( (TIM3_ICSelection)) | ((uint8_t)( TIM3_ICFilter << 4)))); /* Select the Polarity */ if (TIM3_ICPolarity != TIM3_ICPOLARITY_RISING) { TIM3->CCER1 |= TIM3_CCER1_CC2P; } else { TIM3->CCER1 &= (uint8_t)(~TIM3_CCER1_CC2P); } /* Set the CCE Bit */ TIM3->CCER1 |= TIM3_CCER1_CC2E; } /** * @} */ /** * @} */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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