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/** ****************************************************************************** * @file stm32f4xx_tim.c * @author MCD Application Team * @version V1.5.1 * @date 22-May-2015 * @brief This file provides firmware functions to manage the following * functionalities of the TIM peripheral: * + TimeBase management * + Output Compare management * + Input Capture management * + Advanced-control timers (TIM1 and TIM8) specific features * + Interrupts, DMA and flags management * + Clocks management * + Synchronization management * + Specific interface management * + Specific remapping management * @verbatim =============================================================================== ##### How to use this driver ##### =============================================================================== [..] This driver provides functions to configure and program the TIM of all STM32F4xx devices. These functions are split in 9 groups: (#) TIM TimeBase management: this group includes all needed functions to configure the TM Timebase unit: (++) Set/Get Prescaler (++) Set/Get Autoreload (++) Counter modes configuration (++) Set Clock division (++) Select the One Pulse mode (++) Update Request Configuration (++) Update Disable Configuration (++) Auto-Preload Configuration (++) Enable/Disable the counter (#) TIM Output Compare management: this group includes all needed functions to configure the Capture/Compare unit used in Output compare mode: (++) Configure each channel, independently, in Output Compare mode (++) Select the output compare modes (++) Select the Polarities of each channel (++) Set/Get the Capture/Compare register values (++) Select the Output Compare Fast mode (++) Select the Output Compare Forced mode (++) Output Compare-Preload Configuration (++) Clear Output Compare Reference (++) Select the OCREF Clear signal (++) Enable/Disable the Capture/Compare Channels (#) TIM Input Capture management: this group includes all needed functions to configure the Capture/Compare unit used in Input Capture mode: (++) Configure each channel in input capture mode (++) Configure Channel1/2 in PWM Input mode (++) Set the Input Capture Prescaler (++) Get the Capture/Compare values (#) Advanced-control timers (TIM1 and TIM8) specific features (++) Configures the Break input, dead time, Lock level, the OSSI, the OSSR State and the AOE(automatic output enable) (++) Enable/Disable the TIM peripheral Main Outputs (++) Select the Commutation event (++) Set/Reset the Capture Compare Preload Control bit (#) TIM interrupts, DMA and flags management (++) Enable/Disable interrupt sources (++) Get flags status (++) Clear flags/ Pending bits (++) Enable/Disable DMA requests (++) Configure DMA burst mode (++) Select CaptureCompare DMA request (#) TIM clocks management: this group includes all needed functions to configure the clock controller unit: (++) Select internal/External clock (++) Select the external clock mode: ETR(Mode1/Mode2), TIx or ITRx (#) TIM synchronization management: this group includes all needed functions to configure the Synchronization unit: (++) Select Input Trigger (++) Select Output Trigger (++) Select Master Slave Mode (++) ETR Configuration when used as external trigger (#) TIM specific interface management, this group includes all needed functions to use the specific TIM interface: (++) Encoder Interface Configuration (++) Select Hall Sensor (#) TIM specific remapping management includes the Remapping configuration of specific timers @endverbatim ****************************************************************************** * @attention * * <h2><center>&copy; COPYRIGHT 2015 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 "stm32f4xx_tim.h" #include "stm32f4xx_rcc.h" /** @addtogroup STM32F4xx_StdPeriph_Driver * @{ */ /** @defgroup TIM * @brief TIM driver modules * @{ */ /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* ---------------------- TIM registers bit mask ------------------------ */ #define SMCR_ETR_MASK ((uint16_t)0x00FF) #define CCMR_OFFSET ((uint16_t)0x0018) #define CCER_CCE_SET ((uint16_t)0x0001) #define CCER_CCNE_SET ((uint16_t)0x0004) #define CCMR_OC13M_MASK ((uint16_t)0xFF8F) #define CCMR_OC24M_MASK ((uint16_t)0x8FFF) /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ static void TI1_Config(TIM_TypeDef* TIMx, uint16_t TIM_ICPolarity, uint16_t TIM_ICSelection, uint16_t TIM_ICFilter); static void TI2_Config(TIM_TypeDef* TIMx, uint16_t TIM_ICPolarity, uint16_t TIM_ICSelection, uint16_t TIM_ICFilter); static void TI3_Config(TIM_TypeDef* TIMx, uint16_t TIM_ICPolarity, uint16_t TIM_ICSelection, uint16_t TIM_ICFilter); static void TI4_Config(TIM_TypeDef* TIMx, uint16_t TIM_ICPolarity, uint16_t TIM_ICSelection, uint16_t TIM_ICFilter); /* Private functions ---------------------------------------------------------*/ /** @defgroup TIM_Private_Functions * @{ */ /** @defgroup TIM_Group1 TimeBase management functions * @brief TimeBase management functions * @verbatim =============================================================================== ##### TimeBase management functions ##### =============================================================================== ##### TIM Driver: how to use it in Timing(Time base) Mode ##### =============================================================================== [..] To use the Timer in Timing(Time base) mode, the following steps are mandatory: (#) Enable TIM clock using RCC_APBxPeriphClockCmd(RCC_APBxPeriph_TIMx, ENABLE) function (#) Fill the TIM_TimeBaseInitStruct with the desired parameters. (#) Call