archive-gh-me/Espruino
1
0
Fork 0
mirror of https://github.com/espruino/Espruino.git synced 2025-12-08 19:06:15 +00:00
Code Issues Projects Releases Wiki Activity
Espruino/targetlibs/stm32l1/lib/stm32l1xx_tim.c
Gordon Williams f3d6e0bc83 First commit
2013-09-26 14:39:04 +01:00

2833 lines
105 KiB
C
Raw Blame History

/**
******************************************************************************
* @file stm32l1xx_tim.c
* @author MCD Application Team
* @version V1.0.0
* @date 31-December-2010
* @brief This file provides firmware functions to manage the following
* functionalities of the TIM peripheral:
* - TimeBase management
* - Output Compare management
* - Input Capture management
* - 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 STM32L1xx devices
* These functions are split in 8 groups:
*
* 1. 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
*
* 2. 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
*
* 3. 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
*
* 4. 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
*
* 5. 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
*
* 6. 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
*
* 7. TIM specific interface management, this group includes all
* needed functions to use the specific TIM interface:
* - Encoder Interface Configuration
* - Select Hall Sensor
*
* 8. TIM specific remapping management includes the Remapping
* configuration of specific timers
*
* @endverbatim
*
******************************************************************************
* @attention
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* <h2><center>&copy; COPYRIGHT 2010 STMicroelectronics</center></h2>
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32l1xx_tim.h"
#include "stm32l1xx_rcc.h"
/** @addtogroup STM32L1xx_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)
/* 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:
1. Enable TIM clock using RCC_APBxPeriphClockCmd(RCC_APBxPeriph_TIMx, ENABLE) function
2. Fill the TIM_TimeBaseInitStruct with the desired parameters.
3. Call TIM_TimeBaseInit(TIMx, &TIM_TimeBaseInitStruct) to configure the Time Base unit
with the corresponding configuration
4. Enable the NVIC if you need to generate the update interrupt.
5. Enable the corresponding interrupt using the function TIM_ITConfig(TIMx, TIM_IT_Update)
6. Call the TIM_Cmd(ENABLE) function to enable the TIM counter.
Note1: All other functions can be used seperatly to modify, if needed,
a specific feature of the Timer.
@endverbatim
* @{
*/
/**
* @brief Deinitializes the TIMx peripheral registers to their default reset values.
* @param TIMx: where x can be 2 to 11 to select the TIM peripheral.
* @retval None
*
*/
void TIM_DeInit(TIM_TypeDef* TIMx)
{
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
if (TIMx == TIM2)
{
RCC_APB1PeriphResetCmd(RCC_APB1Periph_TIM2, ENABLE);
RCC_APB1PeriphResetCmd(RCC_APB1Periph_TIM2, DISABLE);
}
else if (TIMx == TIM3)
{
RCC_APB1PeriphResetCmd(RCC_APB1Periph_TIM3, ENABLE);
RCC_APB1PeriphResetCmd(RCC_APB1Periph_TIM3, DISABLE);
}
else if (TIMx == TIM4)
{
RCC_APB1PeriphResetCmd(RCC_APB1Periph_TIM4, ENABLE);
RCC_APB1PeriphResetCmd(RCC_APB1Periph_TIM4, DISABLE);
}
else if (TIMx == TIM6)
{
RCC_APB1PeriphResetCmd(RCC_APB1Periph_TIM6, ENABLE);
RCC_APB1PeriphResetCmd(RCC_APB1Periph_TIM6, DISABLE);
}
else if (TIMx == TIM7)
{
RCC_APB1PeriphResetCmd(RCC_APB1Periph_TIM7, ENABLE);
RCC_APB1PeriphResetCmd(RCC_APB1Periph_TIM7, DISABLE);
}
else if (TIMx == TIM9)
{
RCC_APB2PeriphResetCmd(RCC_APB2Periph_TIM9, ENABLE);
RCC_APB2PeriphResetCmd(RCC_APB2Periph_TIM9, DISABLE);
}
else if (TIMx == TIM10)
{
RCC_APB2PeriphResetCmd(RCC_APB2Periph_TIM10, ENABLE);
RCC_APB2PeriphResetCmd(RCC_APB2Periph_TIM10, DISABLE);
}
else
{
if (TIMx == TIM11)
{
RCC_APB2PeriphResetCmd(RCC_APB2Periph_TIM11, ENABLE);
RCC_APB2PeriphResetCmd(RCC_APB2Periph_TIM11, DISABLE);
}
}
}
/**
* @brief Initializes the TIMx Time Base Unit peripheral according to
* the specified parameters in the TIM_TimeBaseInitStruct.
* @param TIMx: where x can be 2 to 11 to select the TIM peripheral.
* @param TIM_TimeBaseInitStruct: pointer to a TIM_TimeBaseInitTypeDef
* structure that contains the configuration information for
* the specified TIM peripheral.
* @retval None
*/
void TIM_TimeBaseInit(TIM_TypeDef* TIMx, TIM_TimeBaseInitTypeDef* TIM_TimeBaseInitStruct)
{
uint16_t tmpcr1 = 0;
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
assert_param(IS_TIM_COUNTER_MODE(TIM_TimeBaseInitStruct->TIM_CounterMode));
assert_param(IS_TIM_CKD_DIV(TIM_TimeBaseInitStruct->TIM_ClockDivision));
tmpcr1 = TIMx->CR1;
if(((TIMx) == TIM2) || ((TIMx) == TIM3) || ((TIMx) == TIM4))
{
/* Select the Counter Mode */
tmpcr1 &= (uint16_t)(~((uint16_t)(TIM_CR1_DIR | TIM_CR1_CMS)));
tmpcr1 |= (uint32_t)TIM_TimeBaseInitStruct->TIM_CounterMode;
}
if(((TIMx) != TIM6) && ((TIMx) != TIM7))
{
/* Set the clock division */
tmpcr1 &= (uint16_t)(~((uint16_t)TIM_CR1_CKD));
tmpcr1 |= (uint32_t)TIM_TimeBaseInitStruct->TIM_ClockDivision;
}
TIMx->CR1 = tmpcr1;
/* Set the Autoreload value */
TIMx->ARR = TIM_TimeBaseInitStruct->TIM_Period ;
/* Set the Prescaler value */
TIMx->PSC = TIM_TimeBaseInitStruct->TIM_Prescaler;
/* Generate an update event to reload the Prescaler value immediatly */
TIMx->EGR = TIM_PSCReloadMode_Immediate;
}
/**
* @brief Fills each TIM_TimeBaseInitStruct member with its default value.
* @param TIM_TimeBaseInitStruct : pointer to a TIM_TimeBaseInitTypeDef
* structure which will be initialized.
* @retval None
*/
void TIM_TimeBaseStructInit(TIM_TimeBaseInitTypeDef* TIM_TimeBaseInitStruct)
{
/* Set the default configuration */
TIM_TimeBaseInitStruct->TIM_Period = 0xFFFF;
TIM_TimeBaseInitStruct->TIM_Prescaler = 0x0000;
TIM_TimeBaseInitStruct->TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseInitStruct->TIM_CounterMode = TIM_CounterMode_Up;
}
/**
* @brief Configures the TIMx Prescaler.
* @param TIMx: where x can be 2 to 11 to select the TIM peripheral.
* @param Prescaler: specifies the Prescaler Register value
* @param TIM_PSCReloadMode: specifies the TIM Prescaler Reload mode
* This parameter can be one of the following values:
* @arg TIM_PSCReloadMode_Update: The Prescaler is loaded at the update event.
* @arg TIM_PSCReloadMode_Immediate: The Prescaler is loaded immediatly.
* @retval None
*/
void TIM_PrescalerConfig(TIM_TypeDef* TIMx, uint16_t Prescaler, uint16_t TIM_PSCReloadMode)
{
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
assert_param(IS_TIM_PRESCALER_RELOAD(TIM_PSCReloadMode));
/* Set the Prescaler value */
TIMx->PSC = Prescaler;
/* Set or reset the UG Bit */
TIMx->EGR = TIM_PSCReloadMode;
}
/**
* @brief Specifies the TIMx Counter Mode to be used.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_CounterMode: specifies the Counter Mode to be used
* This parameter can be one of the following values:
* @arg TIM_CounterMode_Up: TIM Up Counting Mode
* @arg TIM_CounterMode_Down: TIM Down Counting Mode
* @arg TIM_CounterMode_CenterAligned1: TIM Center Aligned Mode1
* @arg TIM_CounterMode_CenterAligned2: TIM Center Aligned Mode2
* @arg TIM_CounterMode_CenterAligned3: TIM Center Aligned Mode3
* @retval None
*/
void TIM_CounterModeConfig(TIM_TypeDef* TIMx, uint16_t TIM_CounterMode)
{
uint16_t tmpcr1 = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_TIM_COUNTER_MODE(TIM_CounterMode));
tmpcr1 = TIMx->CR1;
/* Reset the CMS and DIR Bits */
tmpcr1 &= (uint16_t)(~((uint16_t)(TIM_CR1_DIR | TIM_CR1_CMS)));
/* Set the Counter Mode */
tmpcr1 |= TIM_CounterMode;
/* Write to TIMx CR1 register */
TIMx->CR1 = tmpcr1;
}
/**
* @brief Sets the TIMx Counter Register value
* @param TIMx: where x can be 2 to 11 to select the TIM peripheral.
* @param Counter: specifies the Counter register new value.
* @retval None
*/
void TIM_SetCounter(TIM_TypeDef* TIMx, uint32_t Counter)
{
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
/* Set the Counter Register value */
TIMx->CNT = Counter;
}
/**
* @brief Sets the TIMx Autoreload Register value
* @param TIMx: where x can be 2 to 11 to select the TIM peripheral.
* @param Autoreload: specifies the Autoreload register new value.
* @retval None
*/
void TIM_SetAutoreload(TIM_TypeDef* TIMx, uint32_t Autoreload)
{
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
/* Set the Autoreload Register value */
TIMx->ARR = Autoreload;
}
/**
* @brief Gets the TIMx Counter value.
* @param TIMx: where x can be 2 to 11 to select the TIM peripheral.
* @retval Counter Register value.
*/
uint32_t TIM_GetCounter(TIM_TypeDef* TIMx)
{
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
/* Get the Counter Register value */
return TIMx->CNT;
}
/**
* @brief Gets the TIMx Prescaler value.
* @param TIMx: where x can be 2 to 11 to select the TIM peripheral.
* @retval Prescaler Register value.
*/
uint16_t TIM_GetPrescaler(TIM_TypeDef* TIMx)
{
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
/* Get the Prescaler Register value */
return TIMx->PSC;
}
/**
* @brief Enables or Disables the TIMx Update event.
* @param TIMx: where x can be 2 to 11 to select the TIM peripheral.
* @param NewState: new state of the TIMx UDIS bit
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void TIM_UpdateDisableConfig(TIM_TypeDef* TIMx, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Set the Update Disable Bit */
TIMx->CR1 |= TIM_CR1_UDIS;
}
else
{
/* Reset the Update Disable Bit */
TIMx->CR1 &= (uint16_t)~((uint16_t)TIM_CR1_UDIS);
}
}
/**
* @brief Configures the TIMx Update Request Interrupt source.
* @param TIMx: where x can be 2 to 11 to select the TIM peripheral.
* @param TIM_UpdateSource: specifies the Update source.
* This parameter can be one of the following values:
* @arg TIM_UpdateSource_Regular: Source of update is the counter overflow/underflow
or the setting of UG bit, or an update generation
through the slave mode controller.
* @arg TIM_UpdateSource_Global: Source of update is counter overflow/underflow.
* @retval None
*/
void TIM_UpdateRequestConfig(TIM_TypeDef* TIMx, uint16_t TIM_UpdateSource)
{
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
assert_param(IS_TIM_UPDATE_SOURCE(TIM_UpdateSource));
if (TIM_UpdateSource != TIM_UpdateSource_Global)
{
/* Set the URS Bit */
TIMx->CR1 |= TIM_CR1_URS;
}
else
{
/* Reset the URS Bit */
TIMx->CR1 &= (uint16_t)~((uint16_t)TIM_CR1_URS);
}
}
/**
* @brief Enables or disables TIMx peripheral Preload register on ARR.
* @param TIMx: where x can be 2 to 11 to select the TIM peripheral.
* @param NewState: new state of the TIMx peripheral Preload register
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void TIM_ARRPreloadConfig(TIM_TypeDef* TIMx, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Set the ARR Preload Bit */
TIMx->CR1 |= TIM_CR1_ARPE;
}
else
{
/* Reset the ARR Preload Bit */
TIMx->CR1 &= (uint16_t)~((uint16_t)TIM_CR1_ARPE);
}
}
/**
* @brief Selects the TIMx<4D>s One Pulse Mode.
* @param TIMx: where x can be 2 to 11 to select the TIM peripheral.
* @param TIM_OPMode: specifies the OPM Mode to be used.
* This parameter can be one of the following values:
* @arg TIM_OPMode_Single
* @arg TIM_OPMode_Repetitive
* @retval None
*/
void TIM_SelectOnePulseMode(TIM_TypeDef* TIMx, uint16_t TIM_OPMode)
{
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
assert_param(IS_TIM_OPM_MODE(TIM_OPMode));
/* Reset the OPM Bit */
TIMx->CR1 &= (uint16_t)~((uint16_t)TIM_CR1_OPM);
/* Configure the OPM Mode */
TIMx->CR1 |= TIM_OPMode;
}
/**
* @brief Sets the TIMx Clock Division value.
* @param TIMx: where x can be 2, 3, 4, 9, 10 or 11 to select the TIM peripheral.
* @param TIM_CKD: specifies the clock division value.
* This parameter can be one of the following value:
* @arg TIM_CKD_DIV1: TDTS = Tck_tim
* @arg TIM_CKD_DIV2: TDTS = 2*Tck_tim
* @arg TIM_CKD_DIV4: TDTS = 4*Tck_tim
* @retval None
*/
void TIM_SetClockDivision(TIM_TypeDef* TIMx, uint16_t TIM_CKD)
{
/* Check the parameters */
assert_param(IS_TIM_LIST1_PERIPH(TIMx));
assert_param(IS_TIM_CKD_DIV(TIM_CKD));
/* Reset the CKD Bits */
TIMx->CR1 &= (uint16_t)~((uint16_t)TIM_CR1_CKD);
/* Set the CKD value */
TIMx->CR1 |= TIM_CKD;
}
/**
* @brief Enables or disables the specified TIM peripheral.
* @param TIMx: where x can be 2 to 11 to select the TIMx peripheral.
* @param NewState: new state of the TIMx peripheral.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void TIM_Cmd(TIM_TypeDef* TIMx, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the TIM Counter */
TIMx->CR1 |= TIM_CR1_CEN;
}
else
{
/* Disable the TIM Counter */
TIMx->CR1 &= (uint16_t)(~((uint16_t)TIM_CR1_CEN));
}
}
/**
* @}
*/
/** @defgroup TIM_Group2 Output Compare management functions
* @brief Output Compare management functions
*
@verbatim
===============================================================================
Output Compare management functions
===============================================================================
===================================================================
TIM Driver: how to use it in Output Compare Mode
===================================================================
To use the Timer in Output Compare mode, the following steps are mandatory:
1. Enable TIM clock using RCC_APBxPeriphClockCmd(RCC_APBxPeriph_TIMx, ENABLE) function
2. Configure the TIM pins by configuring the corresponding GPIO pins
2. Configure the Time base unit as described in the first part of this driver, if needed,
else the Timer will run with the default configuration:
- Autoreload value = 0xFFFF
- Prescaler value = 0x0000
- Counter mode = Up counting
- Clock Division = TIM_CKD_DIV1
3. Fill the TIM_OCInitStruct with the desired parameters including:
- The TIM Output Compare mode: TIM_OCMode
- TIM Output State: TIM_OutputState
- TIM Pulse value: TIM_Pulse
- TIM Output Compare Polarity : TIM_OCPolarity
4. Call TIM_OCxInit(TIMx, &TIM_OCInitStruct) to configure the desired channel with the
corresponding configuration
5. Call the TIM_Cmd(ENABLE) function to enable the TIM counter.
Note1: All other functions can be used separately to modify, if needed,
a specific feature of the Timer.
Note2: In case of PWM mode, this function is mandatory:
TIM_OCxPreloadConfig(TIMx, TIM_OCPreload_ENABLE);
Note3: If the corresponding interrupt or DMA request are needed, the user should:
1. Enable the NVIC (or the DMA) to use the TIM interrupts (or DMA requests).
2. Enable the corresponding interrupt (or DMA request) using the function
TIM_ITConfig(TIMx, TIM_IT_CCx) (or TIM_DMA_Cmd(TIMx, TIM_DMA_CCx))
@endverbatim
* @{
*/
/**
* @brief Initializes the TIMx Channel1 according to the specified
* parameters in the TIM_OCInitStruct.
* @param TIMx: where x can be 2, 3, 4, 9, 10 or 11 to select the TIM peripheral.
* @param TIM_OCInitStruct: pointer to a TIM_OCInitTypeDef structure
* that contains the configuration information for the specified TIM
* peripheral.
* @retval None
*/
void TIM_OC1Init(TIM_TypeDef* TIMx, TIM_OCInitTypeDef* TIM_OCInitStruct)
{
uint16_t tmpccmrx = 0, tmpccer = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST1_PERIPH(TIMx));
assert_param(IS_TIM_OC_MODE(TIM_OCInitStruct->TIM_OCMode));
assert_param(IS_TIM_OUTPUT_STATE(TIM_OCInitStruct->TIM_OutputState));
assert_param(IS_TIM_OC_POLARITY(TIM_OCInitStruct->TIM_OCPolarity));
/* Disable the Channel 1: Reset the CC1E Bit */
TIMx->CCER &= (uint16_t)(~(uint16_t)TIM_CCER_CC1E);
/* Get the TIMx CCER register value */
tmpccer = TIMx->CCER;
/* Get the TIMx CCMR1 register value */
tmpccmrx = TIMx->CCMR1;
/* Reset the Output Compare Mode Bits */
tmpccmrx &= (uint16_t)(~((uint16_t)TIM_CCMR1_OC1M));
tmpccmrx &= (uint16_t)(~((uint16_t)TIM_CCMR1_CC1S));
/* Select the Output Compare Mode */
tmpccmrx |= TIM_OCInitStruct->TIM_OCMode;
/* Reset the Output Polarity level */
tmpccer &= (uint16_t)(~((uint16_t)TIM_CCER_CC1P));
/* Set the Output Compare Polarity */
tmpccer |= TIM_OCInitStruct->TIM_OCPolarity;
/* Set the Output State */
tmpccer |= TIM_OCInitStruct->TIM_OutputState;
/* Set the Capture Compare Register value */
TIMx->CCR1 = TIM_OCInitStruct->TIM_Pulse;
/* Write to TIMx CCMR1 */
TIMx->CCMR1 = tmpccmrx;
/* Write to TIMx CCER */
TIMx->CCER = tmpccer;
}
/**
* @brief Initializes the TIMx Channel2 according to the specified
* parameters in the TIM_OCInitStruct.
* @param TIMx: where x can be 2, 3, 4 or 9 to select the TIM peripheral.
* @param TIM_OCInitStruct: pointer to a TIM_OCInitTypeDef structure
* that contains the configuration information for the specified TIM
* peripheral.
* @retval None
*/
void TIM_OC2Init(TIM_TypeDef* TIMx, TIM_OCInitTypeDef* TIM_OCInitStruct)
{
uint16_t tmpccmrx = 0, tmpccer = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST2_PERIPH(TIMx));
assert_param(IS_TIM_OC_MODE(TIM_OCInitStruct->TIM_OCMode));
assert_param(IS_TIM_OUTPUT_STATE(TIM_OCInitStruct->TIM_OutputState));
assert_param(IS_TIM_OC_POLARITY(TIM_OCInitStruct->TIM_OCPolarity));
/* Disable the Channel 2: Reset the CC2E Bit */
TIMx->CCER &= (uint16_t)(~((uint16_t)TIM_CCER_CC2E));
/* Get the TIMx CCER register value */
tmpccer = TIMx->CCER;
/* Get the TIMx CCMR1 register value */
tmpccmrx = TIMx->CCMR1;
/* Reset the Output Compare Mode Bits */
tmpccmrx &= (uint16_t)(~((uint16_t)TIM_CCMR1_OC2M));
/* Select the Output Compare Mode */
tmpccmrx |= (uint16_t)(TIM_OCInitStruct->TIM_OCMode << 8);
/* Reset the Output Polarity level */
tmpccer &= (uint16_t)(~((uint16_t)TIM_CCER_CC2P));
/* Set the Output Compare Polarity */
tmpccer |= (uint16_t)(TIM_OCInitStruct->TIM_OCPolarity << 4);
/* Set the Output State */
tmpccer |= (uint16_t)(TIM_OCInitStruct->TIM_OutputState << 4);
/* Set the Capture Compare Register value */
TIMx->CCR2 = TIM_OCInitStruct->TIM_Pulse;
/* Write to TIMx CCMR1 */
TIMx->CCMR1 = tmpccmrx;
/* Write to TIMx CCER */
TIMx->CCER = tmpccer;
}
/**
* @brief Initializes the TIMx Channel3 according to the specified
* parameters in the TIM_OCInitStruct.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_OCInitStruct: pointer to a TIM_OCInitTypeDef structure
* that contains the configuration information for the specified TIM
* peripheral.
* @retval None
*/
void TIM_OC3Init(TIM_TypeDef* TIMx, TIM_OCInitTypeDef* TIM_OCInitStruct)
{
uint16_t tmpccmrx = 0, tmpccer = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_TIM_OC_MODE(TIM_OCInitStruct->TIM_OCMode));
assert_param(IS_TIM_OUTPUT_STATE(TIM_OCInitStruct->TIM_OutputState));
assert_param(IS_TIM_OC_POLARITY(TIM_OCInitStruct->TIM_OCPolarity));
/* Disable the Channel 2: Reset the CC2E Bit */
TIMx->CCER &= (uint16_t)(~((uint16_t)TIM_CCER_CC3E));
/* Get the TIMx CCER register value */
tmpccer = TIMx->CCER;
/* Get the TIMx CCMR2 register value */
tmpccmrx = TIMx->CCMR2;
/* Reset the Output Compare Mode Bits */
tmpccmrx &= (uint16_t)(~((uint16_t)TIM_CCMR2_OC3M));
/* Select the Output Compare Mode */
tmpccmrx |= TIM_OCInitStruct->TIM_OCMode;
/* Reset the Output Polarity level */
tmpccer &= (uint16_t)(~((uint16_t)TIM_CCER_CC3P));
/* Set the Output Compare Polarity */
tmpccer |= (uint16_t)(TIM_OCInitStruct->TIM_OCPolarity << 8);
/* Set the Output State */
tmpccer |= (uint16_t)(TIM_OCInitStruct->TIM_OutputState << 8);
/* Set the Capture Compare Register value */
TIMx->CCR3 = TIM_OCInitStruct->TIM_Pulse;
/* Write to TIMx CCMR2 */
TIMx->CCMR2 = tmpccmrx;
/* Write to TIMx CCER */
TIMx->CCER = tmpccer;
}
/**
* @brief Initializes the TIMx Channel4 according to the specified
* parameters in the TIM_OCInitStruct.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_OCInitStruct: pointer to a TIM_OCInitTypeDef structure
* that contains the configuration information for the specified TIM
* peripheral.
* @retval None
*/
void TIM_OC4Init(TIM_TypeDef* TIMx, TIM_OCInitTypeDef* TIM_OCInitStruct)
{
uint16_t tmpccmrx = 0, tmpccer = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_TIM_OC_MODE(TIM_OCInitStruct->TIM_OCMode));
assert_param(IS_TIM_OUTPUT_STATE(TIM_OCInitStruct->TIM_OutputState));
assert_param(IS_TIM_OC_POLARITY(TIM_OCInitStruct->TIM_OCPolarity));
/* Disable the Channel 2: Reset the CC4E Bit */
TIMx->CCER &= (uint16_t)(~((uint16_t)TIM_CCER_CC4E));
/* Get the TIMx CCER register value */
tmpccer = TIMx->CCER;
/* Get the TIMx CCMR2 register value */
tmpccmrx = TIMx->CCMR2;
/* Reset the Output Compare Mode Bits */
tmpccmrx &= (uint16_t)(~((uint16_t)TIM_CCMR2_OC4M));
/* Select the Output Compare Mode */
tmpccmrx |= (uint16_t)(TIM_OCInitStruct->TIM_OCMode << 8);
/* Reset the Output Polarity level */
tmpccer &= (uint16_t)(~((uint16_t)TIM_CCER_CC4P));
/* Set the Output Compare Polarity */
tmpccer |= (uint16_t)(TIM_OCInitStruct->TIM_OCPolarity << 12);
/* Set the Output State */
tmpccer |= (uint16_t)(TIM_OCInitStruct->TIM_OutputState << 12);
/* Set the Capture Compare Register value */
TIMx->CCR4 = TIM_OCInitStruct->TIM_Pulse;
/* Write to TIMx CCMR2 */
TIMx->CCMR2 = tmpccmrx;
/* Write to TIMx CCER */
TIMx->CCER = tmpccer;
}
/**
* @brief Fills each TIM_OCInitStruct member with its default value.
* @param TIM_OCInitStruct : pointer to a TIM_OCInitTypeDef structure which will
* be initialized.
* @retval None
*/
void TIM_OCStructInit(TIM_OCInitTypeDef* TIM_OCInitStruct)
{
/* Set the default configuration */
TIM_OCInitStruct->TIM_OCMode = TIM_OCMode_Timing;
TIM_OCInitStruct->TIM_OutputState = TIM_OutputState_Disable;
TIM_OCInitStruct->TIM_Pulse = 0x0000;
TIM_OCInitStruct->TIM_OCPolarity = TIM_OCPolarity_High;
}
/**
* @brief Selects the TIM Output Compare Mode.
* @note This function disables the selected channel before changing the Output
* Compare Mode.
* User has to enable this channel using TIM_CCxCmd and TIM_CCxNCmd functions.
* @param TIMx: where x can be 2, 3, 4, 9, 10 or 11 to select the TIM peripheral.
* @param TIM_Channel: specifies the TIM Channel
* This parameter can be one of the following values:
* @arg TIM_Channel_1: TIM Channel 1
* @arg TIM_Channel_2: TIM Channel 2
* @arg TIM_Channel_3: TIM Channel 3
* @arg TIM_Channel_4: TIM Channel 4
* @param TIM_OCMode: specifies the TIM Output Compare Mode.
* This parameter can be one of the following values:
* @arg TIM_OCMode_Timing
* @arg TIM_OCMode_Active
* @arg TIM_OCMode_Toggle
* @arg TIM_OCMode_PWM1
* @arg TIM_OCMode_PWM2
* @arg TIM_ForcedAction_Active
* @arg TIM_ForcedAction_InActive
* @retval None
*/
void TIM_SelectOCxM(TIM_TypeDef* TIMx, uint16_t TIM_Channel, uint16_t TIM_OCMode)
{
uint32_t tmp = 0;
uint16_t tmp1 = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST1_PERIPH(TIMx));
assert_param(IS_TIM_OCM(TIM_OCMode));
tmp = (uint32_t) TIMx;
tmp += CCMR_OFFSET;
tmp1 = CCER_CCE_SET << (uint16_t)TIM_Channel;
/* Disable the Channel: Reset the CCxE Bit */
TIMx->CCER &= (uint16_t) ~tmp1;
if((TIM_Channel == TIM_Channel_1) ||(TIM_Channel == TIM_Channel_3))
{
tmp += (TIM_Channel>>1);
/* Reset the OCxM bits in the CCMRx register */
*(__IO uint32_t *) tmp &= (uint32_t)~((uint32_t)TIM_CCMR1_OC1M);
/* Configure the OCxM bits in the CCMRx register */
*(__IO uint32_t *) tmp |= TIM_OCMode;
}
else
{
tmp += (uint16_t)(TIM_Channel - (uint16_t)4)>> (uint16_t)1;
/* Reset the OCxM bits in the CCMRx register */
*(__IO uint32_t *) tmp &= (uint32_t)~((uint32_t)TIM_CCMR1_OC2M);
/* Configure the OCxM bits in the CCMRx register */
*(__IO uint32_t *) tmp |= (uint16_t)(TIM_OCMode << 8);
}
}
/**
* @brief Sets the TIMx Capture Compare1 Register value
* @param TIMx: where x can be 2, 3, 4, 9, 10 or 11 to select the TIM peripheral.
* @param Compare1: specifies the Capture Compare1 register new value.
* @retval None
*/
void TIM_SetCompare1(TIM_TypeDef* TIMx, uint32_t Compare1)
{
/* Check the parameters */
assert_param(IS_TIM_LIST1_PERIPH(TIMx));
/* Set the Capture Compare1 Register value */
TIMx->CCR1 = Compare1;
}
/**
* @brief Sets the TIMx Capture Compare2 Register value
* @param TIMx: where x can be 2, 3, 4 or 9 to select the TIM peripheral.
* @param Compare2: specifies the Capture Compare2 register new value.
* @retval None
*/
void TIM_SetCompare2(TIM_TypeDef* TIMx, uint32_t Compare2)
{
/* Check the parameters */
assert_param(IS_TIM_LIST2_PERIPH(TIMx));
/* Set the Capture Compare2 Register value */
TIMx->CCR2 = Compare2;
}
/**
* @brief Sets the TIMx Capture Compare3 Register value
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param Compare3: specifies the Capture Compare3 register new value.
* @retval None
*/
void TIM_SetCompare3(TIM_TypeDef* TIMx, uint32_t Compare3)
{
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
/* Set the Capture Compare3 Register value */
TIMx->CCR3 = Compare3;
}
/**
* @brief Sets the TIMx Capture Compare4 Register value
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param Compare4: specifies the Capture Compare4 register new value.
* @retval None
*/
void TIM_SetCompare4(TIM_TypeDef* TIMx, uint32_t Compare4)
{
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
/* Set the Capture Compare4 Register value */
TIMx->CCR4 = Compare4;
}
/**
* @brief Forces the TIMx output 1 waveform to active or inactive level.
* @param TIMx: where x can be 2, 3, 4, 9, 10 or 11 to select the TIM peripheral.
* @param TIM_ForcedAction: specifies the forced Action to be set to the output waveform.
* This parameter can be one of the following values:
* @arg TIM_ForcedAction_Active: Force active level on OC1REF
* @arg TIM_ForcedAction_InActive: Force inactive level on OC1REF.
* @retval None
*/
void TIM_ForcedOC1Config(TIM_TypeDef* TIMx, uint16_t TIM_ForcedAction)
{
uint16_t tmpccmr1 = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST1_PERIPH(TIMx));
assert_param(IS_TIM_FORCED_ACTION(TIM_ForcedAction));
tmpccmr1 = TIMx->CCMR1;
/* Reset the OC1M Bits */
tmpccmr1 &= (uint16_t)~((uint16_t)TIM_CCMR1_OC1M);
/* Configure The Forced output Mode */
tmpccmr1 |= TIM_ForcedAction;
/* Write to TIMx CCMR1 register */
TIMx->CCMR1 = tmpccmr1;
}
/**
* @brief Forces the TIMx output 2 waveform to active or inactive level.
* @param TIMx: where x can be 2, 3, 4 or 9 to select the TIM
* peripheral.
* @param TIM_ForcedAction: specifies the forced Action to be set to the output waveform.
* This parameter can be one of the following values:
* @arg TIM_ForcedAction_Active: Force active level on OC2REF
* @arg TIM_ForcedAction_InActive: Force inactive level on OC2REF.
* @retval None
*/
void TIM_ForcedOC2Config(TIM_TypeDef* TIMx, uint16_t TIM_ForcedAction)
{
uint16_t tmpccmr1 = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST2_PERIPH(TIMx));
assert_param(IS_TIM_FORCED_ACTION(TIM_ForcedAction));
tmpccmr1 = TIMx->CCMR1;
/* Reset the OC2M Bits */
tmpccmr1 &= (uint16_t)~((uint16_t)TIM_CCMR1_OC2M);
/* Configure The Forced output Mode */
tmpccmr1 |= (uint16_t)(TIM_ForcedAction << 8);
/* Write to TIMx CCMR1 register */
TIMx->CCMR1 = tmpccmr1;
}
/**
* @brief Forces the TIMx output 3 waveform to active or inactive level.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_ForcedAction: specifies the forced Action to be set to the output waveform.
* This parameter can be one of the following values:
* @arg TIM_ForcedAction_Active: Force active level on OC3REF
* @arg TIM_ForcedAction_InActive: Force inactive level on OC3REF.
* @retval None
*/
void TIM_ForcedOC3Config(TIM_TypeDef* TIMx, uint16_t TIM_ForcedAction)
{
uint16_t tmpccmr2 = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_TIM_FORCED_ACTION(TIM_ForcedAction));
tmpccmr2 = TIMx->CCMR2;
/* Reset the OC1M Bits */
tmpccmr2 &= (uint16_t)~((uint16_t)TIM_CCMR2_OC3M);
/* Configure The Forced output Mode */
tmpccmr2 |= TIM_ForcedAction;
/* Write to TIMx CCMR2 register */
TIMx->CCMR2 = tmpccmr2;
}
/**
* @brief Forces the TIMx output 4 waveform to active or inactive level.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_ForcedAction: specifies the forced Action to be set to the output waveform.
* This parameter can be one of the following values:
* @arg TIM_ForcedAction_Active: Force active level on OC4REF
* @arg TIM_ForcedAction_InActive: Force inactive level on OC4REF.
* @retval None
*/
void TIM_ForcedOC4Config(TIM_TypeDef* TIMx, uint16_t TIM_ForcedAction)
{
uint16_t tmpccmr2 = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_TIM_FORCED_ACTION(TIM_ForcedAction));
tmpccmr2 = TIMx->CCMR2;
/* Reset the OC2M Bits */
tmpccmr2 &= (uint16_t)~((uint16_t)TIM_CCMR2_OC4M);
/* Configure The Forced output Mode */
tmpccmr2 |= (uint16_t)(TIM_ForcedAction << 8);
/* Write to TIMx CCMR2 register */
TIMx->CCMR2 = tmpccmr2;
}
/**
* @brief Enables or disables the TIMx peripheral Preload register on CCR1.
* @param TIMx: where x can be 2, 3, 4, 9, 10 or 11 to select the TIM peripheral.
* @param TIM_OCPreload: new state of the TIMx peripheral Preload register
* This parameter can be one of the following values:
* @arg TIM_OCPreload_Enable
* @arg TIM_OCPreload_Disable
* @retval None
*/
void TIM_OC1PreloadConfig(TIM_TypeDef* TIMx, uint16_t TIM_OCPreload)
{
uint16_t tmpccmr1 = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST1_PERIPH(TIMx));
assert_param(IS_TIM_OCPRELOAD_STATE(TIM_OCPreload));
tmpccmr1 = TIMx->CCMR1;
/* Reset the OC1PE Bit */
tmpccmr1 &= (uint16_t)~((uint16_t)TIM_CCMR1_OC1PE);
/* Enable or Disable the Output Compare Preload feature */
tmpccmr1 |= TIM_OCPreload;
/* Write to TIMx CCMR1 register */
TIMx->CCMR1 = tmpccmr1;
}
/**
* @brief Enables or disables the TIMx peripheral Preload register on CCR2.
* @param TIMx: where x can be 2, 3, 4 or 9 to select the TIM peripheral.
* @param TIM_OCPreload: new state of the TIMx peripheral Preload register
* This parameter can be one of the following values:
* @arg TIM_OCPreload_Enable
* @arg TIM_OCPreload_Disable
* @retval None
*/
void TIM_OC2PreloadConfig(TIM_TypeDef* TIMx, uint16_t TIM_OCPreload)
{
uint16_t tmpccmr1 = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST2_PERIPH(TIMx));
assert_param(IS_TIM_OCPRELOAD_STATE(TIM_OCPreload));
tmpccmr1 = TIMx->CCMR1;
/* Reset the OC2PE Bit */
tmpccmr1 &= (uint16_t)~((uint16_t)TIM_CCMR1_OC2PE);
/* Enable or Disable the Output Compare Preload feature */
tmpccmr1 |= (uint16_t)(TIM_OCPreload << 8);
/* Write to TIMx CCMR1 register */
TIMx->CCMR1 = tmpccmr1;
}
/**
* @brief Enables or disables the TIMx peripheral Preload register on CCR3.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_OCPreload: new state of the TIMx peripheral Preload register
* This parameter can be one of the following values:
* @arg TIM_OCPreload_Enable
* @arg TIM_OCPreload_Disable
* @retval None
*/
void TIM_OC3PreloadConfig(TIM_TypeDef* TIMx, uint16_t TIM_OCPreload)
{
uint16_t tmpccmr2 = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_TIM_OCPRELOAD_STATE(TIM_OCPreload));
tmpccmr2 = TIMx->CCMR2;
/* Reset the OC3PE Bit */
tmpccmr2 &= (uint16_t)~((uint16_t)TIM_CCMR2_OC3PE);
/* Enable or Disable the Output Compare Preload feature */
tmpccmr2 |= TIM_OCPreload;
/* Write to TIMx CCMR2 register */
TIMx->CCMR2 = tmpccmr2;
}
/**
* @brief Enables or disables the TIMx peripheral Preload register on CCR4.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_OCPreload: new state of the TIMx peripheral Preload register
* This parameter can be one of the following values:
* @arg TIM_OCPreload_Enable
* @arg TIM_OCPreload_Disable
* @retval None
*/
void TIM_OC4PreloadConfig(TIM_TypeDef* TIMx, uint16_t TIM_OCPreload)
{
uint16_t tmpccmr2 = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_TIM_OCPRELOAD_STATE(TIM_OCPreload));
tmpccmr2 = TIMx->CCMR2;
/* Reset the OC4PE Bit */
tmpccmr2 &= (uint16_t)~((uint16_t)TIM_CCMR2_OC4PE);
/* Enable or Disable the Output Compare Preload feature */
tmpccmr2 |= (uint16_t)(TIM_OCPreload << 8);
/* Write to TIMx CCMR2 register */
TIMx->CCMR2 = tmpccmr2;
}
/**
* @brief Configures the TIMx Output Compare 1 Fast feature.
* @param TIMx: where x can be 2, 3, 4, 9, 10 or 11 to select the TIM peripheral.
* @param TIM_OCFast: new state of the Output Compare Fast Enable Bit.
* This parameter can be one of the following values:
* @arg TIM_OCFast_Enable: TIM output compare fast enable
* @arg TIM_OCFast_Disable: TIM output compare fast disable
* @retval None
*/
void TIM_OC1FastConfig(TIM_TypeDef* TIMx, uint16_t TIM_OCFast)
{
uint16_t tmpccmr1 = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST1_PERIPH(TIMx));
assert_param(IS_TIM_OCFAST_STATE(TIM_OCFast));
/* Get the TIMx CCMR1 register value */
tmpccmr1 = TIMx->CCMR1;
/* Reset the OC1FE Bit */
tmpccmr1 &= (uint16_t)~((uint16_t)TIM_CCMR1_OC1FE);
/* Enable or Disable the Output Compare Fast Bit */
tmpccmr1 |= TIM_OCFast;
/* Write to TIMx CCMR1 */
TIMx->CCMR1 = tmpccmr1;
}
/**
* @brief Configures the TIMx Output Compare 2 Fast feature.
* @param TIMx: where x can be 2, 3, 4 or 9 to select the TIM peripheral.
* @param TIM_OCFast: new state of the Output Compare Fast Enable Bit.
* This parameter can be one of the following values:
* @arg TIM_OCFast_Enable: TIM output compare fast enable
* @arg TIM_OCFast_Disable: TIM output compare fast disable
* @retval None
*/
void TIM_OC2FastConfig(TIM_TypeDef* TIMx, uint16_t TIM_OCFast)
{
uint16_t tmpccmr1 = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST2_PERIPH(TIMx));
assert_param(IS_TIM_OCFAST_STATE(TIM_OCFast));
/* Get the TIMx CCMR1 register value */
tmpccmr1 = TIMx->CCMR1;
/* Reset the OC2FE Bit */
tmpccmr1 &= (uint16_t)~((uint16_t)TIM_CCMR1_OC2FE);
/* Enable or Disable the Output Compare Fast Bit */
tmpccmr1 |= (uint16_t)(TIM_OCFast << 8);
/* Write to TIMx CCMR1 */
TIMx->CCMR1 = tmpccmr1;
}
/**
* @brief Configures the TIMx Output Compare 3 Fast feature.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_OCFast: new state of the Output Compare Fast Enable Bit.
* This parameter can be one of the following values:
* @arg TIM_OCFast_Enable: TIM output compare fast enable
* @arg TIM_OCFast_Disable: TIM output compare fast disable
* @retval None
*/
void TIM_OC3FastConfig(TIM_TypeDef* TIMx, uint16_t TIM_OCFast)
{
uint16_t tmpccmr2 = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_TIM_OCFAST_STATE(TIM_OCFast));
/* Get the TIMx CCMR2 register value */
tmpccmr2 = TIMx->CCMR2;
/* Reset the OC3FE Bit */
tmpccmr2 &= (uint16_t)~((uint16_t)TIM_CCMR2_OC3FE);
/* Enable or Disable the Output Compare Fast Bit */
tmpccmr2 |= TIM_OCFast;
/* Write to TIMx CCMR2 */
TIMx->CCMR2 = tmpccmr2;
}
/**
* @brief Configures the TIMx Output Compare 4 Fast feature.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_OCFast: new state of the Output Compare Fast Enable Bit.
* This parameter can be one of the following values:
* @arg TIM_OCFast_Enable: TIM output compare fast enable
* @arg TIM_OCFast_Disable: TIM output compare fast disable
* @retval None
*/
void TIM_OC4FastConfig(TIM_TypeDef* TIMx, uint16_t TIM_OCFast)
{
uint16_t tmpccmr2 = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_TIM_OCFAST_STATE(TIM_OCFast));
/* Get the TIMx CCMR2 register value */
tmpccmr2 = TIMx->CCMR2;
/* Reset the OC4FE Bit */
tmpccmr2 &= (uint16_t)~((uint16_t)TIM_CCMR2_OC4FE);
/* Enable or Disable the Output Compare Fast Bit */
tmpccmr2 |= (uint16_t)(TIM_OCFast << 8);
/* Write to TIMx CCMR2 */
TIMx->CCMR2 = tmpccmr2;
}
/**
* @brief Clears or safeguards the OCREF1 signal on an external event
* @param TIMx: where x can be 2, 3, 4, 9, 10 or 11 to select the TIM peripheral.
* @param TIM_OCClear: new state of the Output Compare Clear Enable Bit.
* This parameter can be one of the following values:
* @arg TIM_OCClear_Enable: TIM Output clear enable
* @arg TIM_OCClear_Disable: TIM Output clear disable
* @retval None
*/
void TIM_ClearOC1Ref(TIM_TypeDef* TIMx, uint16_t TIM_OCClear)
{
uint16_t tmpccmr1 = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST1_PERIPH(TIMx));
assert_param(IS_TIM_OCCLEAR_STATE(TIM_OCClear));
tmpccmr1 = TIMx->CCMR1;
/* Reset the OC1CE Bit */
tmpccmr1 &= (uint16_t)~((uint16_t)TIM_CCMR1_OC1CE);
/* Enable or Disable the Output Compare Clear Bit */
tmpccmr1 |= TIM_OCClear;
/* Write to TIMx CCMR1 register */
TIMx->CCMR1 = tmpccmr1;
}
/**
* @brief Clears or safeguards the OCREF2 signal on an external event
* @param TIMx: where x can be 2, 3, 4 or 9 to select the TIM peripheral.
* @param TIM_OCClear: new state of the Output Compare Clear Enable Bit.
* This parameter can be one of the following values:
* @arg TIM_OCClear_Enable: TIM Output clear enable
* @arg TIM_OCClear_Disable: TIM Output clear disable
* @retval None
*/
void TIM_ClearOC2Ref(TIM_TypeDef* TIMx, uint16_t TIM_OCClear)
{
uint16_t tmpccmr1 = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST2_PERIPH(TIMx));
assert_param(IS_TIM_OCCLEAR_STATE(TIM_OCClear));
tmpccmr1 = TIMx->CCMR1;
/* Reset the OC2CE Bit */
tmpccmr1 &= (uint16_t)~((uint16_t)TIM_CCMR1_OC2CE);
/* Enable or Disable the Output Compare Clear Bit */
tmpccmr1 |= (uint16_t)(TIM_OCClear << 8);
/* Write to TIMx CCMR1 register */
TIMx->CCMR1 = tmpccmr1;
}
/**
* @brief Clears or safeguards the OCREF3 signal on an external event
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_OCClear: new state of the Output Compare Clear Enable Bit.
* This parameter can be one of the following values:
* @arg TIM_OCClear_Enable: TIM Output clear enable
* @arg TIM_OCClear_Disable: TIM Output clear disable
* @retval None
*/
void TIM_ClearOC3Ref(TIM_TypeDef* TIMx, uint16_t TIM_OCClear)
{
uint16_t tmpccmr2 = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_TIM_OCCLEAR_STATE(TIM_OCClear));
tmpccmr2 = TIMx->CCMR2;
/* Reset the OC3CE Bit */
tmpccmr2 &= (uint16_t)~((uint16_t)TIM_CCMR2_OC3CE);
/* Enable or Disable the Output Compare Clear Bit */
tmpccmr2 |= TIM_OCClear;
/* Write to TIMx CCMR2 register */
TIMx->CCMR2 = tmpccmr2;
}
/**
* @brief Clears or safeguards the OCREF4 signal on an external event
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_OCClear: new state of the Output Compare Clear Enable Bit.
* This parameter can be one of the following values:
* @arg TIM_OCClear_Enable: TIM Output clear enable
* @arg TIM_OCClear_Disable: TIM Output clear disable
* @retval None
*/
void TIM_ClearOC4Ref(TIM_TypeDef* TIMx, uint16_t TIM_OCClear)
{
uint16_t tmpccmr2 = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_TIM_OCCLEAR_STATE(TIM_OCClear));
tmpccmr2 = TIMx->CCMR2;
/* Reset the OC4CE Bit */
tmpccmr2 &= (uint16_t)~((uint16_t)TIM_CCMR2_OC4CE);
/* Enable or Disable the Output Compare Clear Bit */
tmpccmr2 |= (uint16_t)(TIM_OCClear << 8);
/* Write to TIMx CCMR2 register */
TIMx->CCMR2 = tmpccmr2;
}
/**
* @brief Configures the TIMx channel 1 polarity.
* @param TIMx: where x can be 2, 3, 4, 9, 10 or 11 to select the TIM peripheral.
* @param TIM_OCPolarity: specifies the OC1 Polarity
* This parmeter can be one of the following values:
* @arg TIM_OCPolarity_High: Output Compare active high
* @arg TIM_OCPolarity_Low: Output Compare active low
* @retval None
*/
void TIM_OC1PolarityConfig(TIM_TypeDef* TIMx, uint16_t TIM_OCPolarity)
{
uint16_t tmpccer = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST1_PERIPH(TIMx));
assert_param(IS_TIM_OC_POLARITY(TIM_OCPolarity));
tmpccer = TIMx->CCER;
/* Set or Reset the CC1P Bit */
tmpccer &= (uint16_t)~((uint16_t)TIM_CCER_CC1P);
tmpccer |= TIM_OCPolarity;
/* Write to TIMx CCER register */
TIMx->CCER = tmpccer;
}
/**
* @brief Configures the TIMx channel 2 polarity.
* @param TIMx: where x can be 2, 3, 4 or 9 to select the TIM peripheral.
* @param TIM_OCPolarity: specifies the OC2 Polarity
* This parmeter can be one of the following values:
* @arg TIM_OCPolarity_High: Output Compare active high
* @arg TIM_OCPolarity_Low: Output Compare active low
* @retval None
*/
void TIM_OC2PolarityConfig(TIM_TypeDef* TIMx, uint16_t TIM_OCPolarity)
{
uint16_t tmpccer = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST2_PERIPH(TIMx));
assert_param(IS_TIM_OC_POLARITY(TIM_OCPolarity));
tmpccer = TIMx->CCER;
/* Set or Reset the CC2P Bit */
tmpccer &= (uint16_t)~((uint16_t)TIM_CCER_CC2P);
tmpccer |= (uint16_t)(TIM_OCPolarity << 4);
/* Write to TIMx CCER register */
TIMx->CCER = tmpccer;
}
/**
* @brief Configures the TIMx channel 3 polarity.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_OCPolarity: specifies the OC3 Polarity
* This parmeter can be one of the following values:
* @arg TIM_OCPolarity_High: Output Compare active high
* @arg TIM_OCPolarity_Low: Output Compare active low
* @retval None
*/
void TIM_OC3PolarityConfig(TIM_TypeDef* TIMx, uint16_t TIM_OCPolarity)
{
uint16_t tmpccer = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_TIM_OC_POLARITY(TIM_OCPolarity));
tmpccer = TIMx->CCER;
/* Set or Reset the CC3P Bit */
tmpccer &= (uint16_t)~((uint16_t)TIM_CCER_CC3P);
tmpccer |= (uint16_t)(TIM_OCPolarity << 8);
/* Write to TIMx CCER register */
TIMx->CCER = tmpccer;
}
/**
* @brief Configures the TIMx channel 4 polarity.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_OCPolarity: specifies the OC4 Polarity
* This parmeter can be one of the following values:
* @arg TIM_OCPolarity_High: Output Compare active high
* @arg TIM_OCPolarity_Low: Output Compare active low
* @retval None
*/
void TIM_OC4PolarityConfig(TIM_TypeDef* TIMx, uint16_t TIM_OCPolarity)
{
uint16_t tmpccer = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_TIM_OC_POLARITY(TIM_OCPolarity));
tmpccer = TIMx->CCER;
/* Set or Reset the CC4P Bit */
tmpccer &= (uint16_t)~((uint16_t)TIM_CCER_CC4P);
tmpccer |= (uint16_t)(TIM_OCPolarity << 12);
/* Write to TIMx CCER register */
TIMx->CCER = tmpccer;
}
/**
* @brief Selects the OCReference Clear source.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_OCReferenceClear: specifies the OCReference Clear source.
* This parameter can be one of the following values:
* @arg TIM_OCReferenceClear_ETRF: The internal OCreference clear input is connected to ETRF.
* @arg TIM_OCReferenceClear_OCREFCLR: The internal OCreference clear input is connected to OCREF_CLR input.
* @retval None
*/
void TIM_SelectOCREFClear(TIM_TypeDef* TIMx, uint16_t TIM_OCReferenceClear)
{
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(TIM_OCREFERENCECECLEAR_SOURCE(TIM_OCReferenceClear));
/* Set the TIM_OCReferenceClear source */
TIMx->SMCR &= (uint16_t)~((uint16_t)TIM_SMCR_OCCS);
TIMx->SMCR |= TIM_OCReferenceClear;
}
/**
* @brief Enables or disables the TIM Capture Compare Channel x.
* @param TIMx: where x can be 2, 3, 4, 9, 10 or 11 to select the TIM peripheral.
* @param TIM_Channel: specifies the TIM Channel
* This parameter can be one of the following values:
* @arg TIM_Channel_1: TIM Channel 1
* @arg TIM_Channel_2: TIM Channel 2
* @arg TIM_Channel_3: TIM Channel 3
* @arg TIM_Channel_4: TIM Channel 4
* @param TIM_CCx: specifies the TIM Channel CCxE bit new state.
* This parameter can be: TIM_CCx_Enable or TIM_CCx_Disable.
* @retval None
*/
void TIM_CCxCmd(TIM_TypeDef* TIMx, uint16_t TIM_Channel, uint16_t TIM_CCx)
{
uint16_t tmp = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST1_PERIPH(TIMx));
assert_param(IS_TIM_CCX(TIM_CCx));
tmp = CCER_CCE_SET << TIM_Channel;
/* Reset the CCxE Bit */
TIMx->CCER &= (uint16_t)~ tmp;
/* Set or reset the CCxE Bit */
TIMx->CCER |= (uint16_t)(TIM_CCx << TIM_Channel);
}
/**
* @}
*/
/** @defgroup TIM_Group3 Input Capture management functions
* @brief Input Capture management functions
*
@verbatim
===============================================================================
Input Capture management functions
===============================================================================
===================================================================
TIM Driver: how to use it in Input Capture Mode
===================================================================
To use the Timer in Input Capture mode, the following steps are mandatory:
1. Enable TIM clock using RCC_APBxPeriphClockCmd(RCC_APBxPeriph_TIMx, ENABLE) function
2. Configure the TIM pins by configuring the corresponding GPIO pins
2. Configure the Time base unit as described in the first part of this driver, if needed,
else the Timer will run with the default configuration:
- Autoreload value = 0xFFFF
- Prescaler value = 0x0000
- Counter mode = Up counting
- Clock Division = TIM_CKD_DIV1
3. Fill the TIM_ICInitStruct with the desired parameters including:
- TIM Channel: TIM_Channel
- TIM Input Capture polarity: TIM_ICPolarity
- TIM Input Capture selection: TIM_ICSelection
- TIM Input Capture Prescaler: TIM_ICPrescaler
- TIM Input CApture filter value: TIM_ICFilter
4. Call TIM_ICInit(TIMx, &TIM_ICInitStruct) to configure the desired channel with the
corresponding configuration and to measure only frequency or duty cycle of the input signal,
or,
Call TIM_PWMIConfig(TIMx, &TIM_ICInitStruct) to configure the desired channels with the
corresponding configuration and to measure the frequency and the duty cycle of the input signal
5. Enable the NVIC or the DMA to read the measured frequency.
6. Enable the corresponding interrupt (or DMA request) to read the Captured value,
using the function TIM_ITConfig(TIMx, TIM_IT_CCx) (or TIM_DMA_Cmd(TIMx, TIM_DMA_CCx))
7. Call the TIM_Cmd(ENABLE) function to enable the TIM counter.
8. Use TIM_GetCapturex(TIMx); to read the captured value.
Note1: All other functions can be used seperatly to modify, if needed,
a specific feature of the Timer.
@endverbatim
* @{
*/
/**
* @brief Initializes the TIM peripheral according to the specified
* parameters in the TIM_ICInitStruct.
* @param TIMx: where x can be 2, 3, 4, 9, 10 or 11 to select the TIM peripheral.
* @param TIM_ICInitStruct: pointer to a TIM_ICInitTypeDef structure
* that contains the configuration information for the specified TIM
* peripheral.
* @retval None
*/
void TIM_ICInit(TIM_TypeDef* TIMx, TIM_ICInitTypeDef* TIM_ICInitStruct)
{
/* Check the parameters */
assert_param(IS_TIM_LIST1_PERIPH(TIMx));
assert_param(IS_TIM_IC_POLARITY(TIM_ICInitStruct->TIM_ICPolarity));
assert_param(IS_TIM_IC_SELECTION(TIM_ICInitStruct->TIM_ICSelection));
assert_param(IS_TIM_IC_PRESCALER(TIM_ICInitStruct->TIM_ICPrescaler));
assert_param(IS_TIM_IC_FILTER(TIM_ICInitStruct->TIM_ICFilter));
if (TIM_ICInitStruct->TIM_Channel == TIM_Channel_1)
{
/* TI1 Configuration */
TI1_Config(TIMx, TIM_ICInitStruct->TIM_ICPolarity,
TIM_ICInitStruct->TIM_ICSelection,
TIM_ICInitStruct->TIM_ICFilter);
/* Set the Input Capture Prescaler value */
TIM_SetIC1Prescaler(TIMx, TIM_ICInitStruct->TIM_ICPrescaler);
}
else if (TIM_ICInitStruct->TIM_Channel == TIM_Channel_2)
{
/* TI2 Configuration */
TI2_Config(TIMx, TIM_ICInitStruct->TIM_ICPolarity,
TIM_ICInitStruct->TIM_ICSelection,
TIM_ICInitStruct->TIM_ICFilter);
/* Set the Input Capture Prescaler value */
TIM_SetIC2Prescaler(TIMx, TIM_ICInitStruct->TIM_ICPrescaler);
}
else if (TIM_ICInitStruct->TIM_Channel == TIM_Channel_3)
{
/* TI3 Configuration */
TI3_Config(TIMx, TIM_ICInitStruct->TIM_ICPolarity,
TIM_ICInitStruct->TIM_ICSelection,
TIM_ICInitStruct->TIM_ICFilter);
/* Set the Input Capture Prescaler value */
TIM_SetIC3Prescaler(TIMx, TIM_ICInitStruct->TIM_ICPrescaler);
}
else
{
/* TI4 Configuration */
TI4_Config(TIMx, TIM_ICInitStruct->TIM_ICPolarity,
TIM_ICInitStruct->TIM_ICSelection,
TIM_ICInitStruct->TIM_ICFilter);
/* Set the Input Capture Prescaler value */
TIM_SetIC4Prescaler(TIMx, TIM_ICInitStruct->TIM_ICPrescaler);
}
}
/**
* @brief Fills each TIM_ICInitStruct member with its default value.
* @param TIM_ICInitStruct : pointer to a TIM_ICInitTypeDef structure which will
* be initialized.
* @retval None
*/
void TIM_ICStructInit(TIM_ICInitTypeDef* TIM_ICInitStruct)
{
/* Set the default configuration */
TIM_ICInitStruct->TIM_Channel = TIM_Channel_1;
TIM_ICInitStruct->TIM_ICPolarity = TIM_ICPolarity_Rising;
TIM_ICInitStruct->TIM_ICSelection = TIM_ICSelection_DirectTI;
TIM_ICInitStruct->TIM_ICPrescaler = TIM_ICPSC_DIV1;
TIM_ICInitStruct->TIM_ICFilter = 0x00;
}
/**
* @brief Configures the TIM peripheral according to the specified
* parameters in the TIM_ICInitStruct to measure an external PWM signal.
* @param TIMx: where x can be 2, 3, 4 or 9 to select the TIM peripheral.
* @param TIM_ICInitStruct: pointer to a TIM_ICInitTypeDef structure
* that contains the configuration information for the specified TIM
* peripheral.
* @retval None
*/
void TIM_PWMIConfig(TIM_TypeDef* TIMx, TIM_ICInitTypeDef* TIM_ICInitStruct)
{
uint16_t icoppositepolarity = TIM_ICPolarity_Rising;
uint16_t icoppositeselection = TIM_ICSelection_DirectTI;
/* Check the parameters */
assert_param(IS_TIM_LIST2_PERIPH(TIMx));
/* Select the Opposite Input Polarity */
if (TIM_ICInitStruct->TIM_ICPolarity == TIM_ICPolarity_Rising)
{
icoppositepolarity = TIM_ICPolarity_Falling;
}
else
{
icoppositepolarity = TIM_ICPolarity_Rising;
}
/* Select the Opposite Input */
if (TIM_ICInitStruct->TIM_ICSelection == TIM_ICSelection_DirectTI)
{
icoppositeselection = TIM_ICSelection_IndirectTI;
}
else
{
icoppositeselection = TIM_ICSelection_DirectTI;
}
if (TIM_ICInitStruct->TIM_Channel == TIM_Channel_1)
{
/* TI1 Configuration */
TI1_Config(TIMx, TIM_ICInitStruct->TIM_ICPolarity, TIM_ICInitStruct->TIM_ICSelection,
TIM_ICInitStruct->TIM_ICFilter);
/* Set the Input Capture Prescaler value */
TIM_SetIC1Prescaler(TIMx, TIM_ICInitStruct->TIM_ICPrescaler);
/* TI2 Configuration */
TI2_Config(TIMx, icoppositepolarity, icoppositeselection, TIM_ICInitStruct->TIM_ICFilter);
/* Set the Input Capture Prescaler value */
TIM_SetIC2Prescaler(TIMx, TIM_ICInitStruct->TIM_ICPrescaler);
}
else
{
/* TI2 Configuration */
TI2_Config(TIMx, TIM_ICInitStruct->TIM_ICPolarity, TIM_ICInitStruct->TIM_ICSelection,
TIM_ICInitStruct->TIM_ICFilter);
/* Set the Input Capture Prescaler value */
TIM_SetIC2Prescaler(TIMx, TIM_ICInitStruct->TIM_ICPrescaler);
/* TI1 Configuration */
TI1_Config(TIMx, icoppositepolarity, icoppositeselection, TIM_ICInitStruct->TIM_ICFilter);
/* Set the Input Capture Prescaler value */
TIM_SetIC1Prescaler(TIMx, TIM_ICInitStruct->TIM_ICPrescaler);
}
}
/**
* @brief Gets the TIMx Input Capture 1 value.
* @param TIMx: where x can be 2, 3, 4, 9, 10 or 11 to select the TIM peripheral.
* @retval Capture Compare 1 Register value.
*/
uint32_t TIM_GetCapture1(TIM_TypeDef* TIMx)
{
/* Check the parameters */
assert_param(IS_TIM_LIST1_PERIPH(TIMx));
/* Get the Capture 1 Register value */
return TIMx->CCR1;
}
/**
* @brief Gets the TIMx Input Capture 2 value.
* @param TIMx: where x can be 2, 3, 4 or 9 to select the TIM peripheral.
* @retval Capture Compare 2 Register value.
*/
uint32_t TIM_GetCapture2(TIM_TypeDef* TIMx)
{
/* Check the parameters */
assert_param(IS_TIM_LIST2_PERIPH(TIMx));
/* Get the Capture 2 Register value */
return TIMx->CCR2;
}
/**
* @brief Gets the TIMx Input Capture 3 value.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @retval Capture Compare 3 Register value.
*/
uint32_t TIM_GetCapture3(TIM_TypeDef* TIMx)
{
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
/* Get the Capture 3 Register value */
return TIMx->CCR3;
}
/**
* @brief Gets the TIMx Input Capture 4 value.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @retval Capture Compare 4 Register value.
*/
uint32_t TIM_GetCapture4(TIM_TypeDef* TIMx)
{
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
/* Get the Capture 4 Register value */
return TIMx->CCR4;
}
/**
* @brief Sets the TIMx Input Capture 1 prescaler.
* @param TIMx: where x can be 2, 3, 4, 9, 10 or 11 to select the TIM peripheral.
* @param TIM_ICPSC: specifies the Input Capture1 prescaler new value.
* This parameter can be one of the following values:
* @arg TIM_ICPSC_DIV1: no prescaler
* @arg TIM_ICPSC_DIV2: capture is done once every 2 events
* @arg TIM_ICPSC_DIV4: capture is done once every 4 events
* @arg TIM_ICPSC_DIV8: capture is done once every 8 events
* @retval None
*/
void TIM_SetIC1Prescaler(TIM_TypeDef* TIMx, uint16_t TIM_ICPSC)
{
/* Check the parameters */
assert_param(IS_TIM_LIST1_PERIPH(TIMx));
assert_param(IS_TIM_IC_PRESCALER(TIM_ICPSC));
/* Reset the IC1PSC Bits */
TIMx->CCMR1 &= (uint16_t)~((uint16_t)TIM_CCMR1_IC1PSC);
/* Set the IC1PSC value */
TIMx->CCMR1 |= TIM_ICPSC;
}
/**
* @brief Sets the TIMx Input Capture 2 prescaler.
* @param TIMx: where x can be 2, 3, 4 or 9 to select the TIM peripheral.
* @param TIM_ICPSC: specifies the Input Capture2 prescaler new value.
* This parameter can be one of the following values:
* @arg TIM_ICPSC_DIV1: no prescaler
* @arg TIM_ICPSC_DIV2: capture is done once every 2 events
* @arg TIM_ICPSC_DIV4: capture is done once every 4 events
* @arg TIM_ICPSC_DIV8: capture is done once every 8 events
* @retval None
*/
void TIM_SetIC2Prescaler(TIM_TypeDef* TIMx, uint16_t TIM_ICPSC)
{
/* Check the parameters */
assert_param(IS_TIM_LIST2_PERIPH(TIMx));
assert_param(IS_TIM_IC_PRESCALER(TIM_ICPSC));
/* Reset the IC2PSC Bits */
TIMx->CCMR1 &= (uint16_t)~((uint16_t)TIM_CCMR1_IC2PSC);
/* Set the IC2PSC value */
TIMx->CCMR1 |= (uint16_t)(TIM_ICPSC << 8);
}
/**
* @brief Sets the TIMx Input Capture 3 prescaler.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_ICPSC: specifies the Input Capture3 prescaler new value.
* This parameter can be one of the following values:
* @arg TIM_ICPSC_DIV1: no prescaler
* @arg TIM_ICPSC_DIV2: capture is done once every 2 events
* @arg TIM_ICPSC_DIV4: capture is done once every 4 events
* @arg TIM_ICPSC_DIV8: capture is done once every 8 events
* @retval None
*/
void TIM_SetIC3Prescaler(TIM_TypeDef* TIMx, uint16_t TIM_ICPSC)
{
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_TIM_IC_PRESCALER(TIM_ICPSC));
/* Reset the IC3PSC Bits */
TIMx->CCMR2 &= (uint16_t)~((uint16_t)TIM_CCMR2_IC3PSC);
/* Set the IC3PSC value */
TIMx->CCMR2 |= TIM_ICPSC;
}
/**
* @brief Sets the TIMx Input Capture 4 prescaler.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_ICPSC: specifies the Input Capture4 prescaler new value.
* This parameter can be one of the following values:
* @arg TIM_ICPSC_DIV1: no prescaler
* @arg TIM_ICPSC_DIV2: capture is done once every 2 events
* @arg TIM_ICPSC_DIV4: capture is done once every 4 events
* @arg TIM_ICPSC_DIV8: capture is done once every 8 events
* @retval None
*/
void TIM_SetIC4Prescaler(TIM_TypeDef* TIMx, uint16_t TIM_ICPSC)
{
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_TIM_IC_PRESCALER(TIM_ICPSC));
/* Reset the IC4PSC Bits */
TIMx->CCMR2 &= (uint16_t)~((uint16_t)TIM_CCMR2_IC4PSC);
/* Set the IC4PSC value */
TIMx->CCMR2 |= (uint16_t)(TIM_ICPSC << 8);
}
/**
* @}
*/
/** @defgroup TIM_Group4 Interrupts DMA and flags management functions
* @brief Interrupts, DMA and flags management functions
*
@verbatim
===============================================================================
Interrupts, DMA and flags management functions
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Enables or disables the specified TIM interrupts.
* @param TIMx: where x can be 2 to 11 to select the TIMx peripheral.
* @param TIM_IT: specifies the TIM interrupts sources to be enabled or disabled.
* This parameter can be any combination of the following values:
* @arg TIM_IT_Update: TIM update Interrupt source
* @arg TIM_IT_CC1: TIM Capture Compare 1 Interrupt source
* @arg TIM_IT_CC2: TIM Capture Compare 2 Interrupt source
* @arg TIM_IT_CC3: TIM Capture Compare 3 Interrupt source
* @arg TIM_IT_CC4: TIM Capture Compare 4 Interrupt source
* @arg TIM_IT_Trigger: TIM Trigger Interrupt source
* @note
* - TIM6 and TIM7 can only generate an update interrupt.
* - TIM_IT_CC2, TIM_IT_CC3, TIM_IT_CC4 and TIM_IT_Trigger can not be used with TIM10 and TIM11
* - TIM_IT_CC3, TIM_IT_CC4 can not be used with TIM9.
* @param NewState: new state of the TIM interrupts.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void TIM_ITConfig(TIM_TypeDef* TIMx, uint16_t TIM_IT, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
assert_param(IS_TIM_IT(TIM_IT));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the Interrupt sources */
TIMx->DIER |= TIM_IT;
}
else
{
/* Disable the Interrupt sources */
TIMx->DIER &= (uint16_t)~TIM_IT;
}
}
/**
* @brief Configures the TIMx event to be generate by software.
* @param TIMx: where x can be 2 to 11 to select the TIM peripheral.
* @param TIM_EventSource: specifies the event source.
* This parameter can be one or more of the following values:
* @arg TIM_EventSource_Update: Timer update Event source
* @arg TIM_EventSource_CC1: Timer Capture Compare 1 Event source
* @arg TIM_EventSource_CC2: Timer Capture Compare 2 Event source
* @arg TIM_EventSource_CC3: Timer Capture Compare 3 Event source
* @arg TIM_EventSource_CC4: Timer Capture Compare 4 Event source
* @arg TIM_EventSource_Trigger: Timer Trigger Event source
* @note
* - TIM6 and TIM7 can only generate an update event.
* - TIM9 can only generate an update event, Capture Compare 1 event,
* Capture Compare 2 event and TIM_EventSource_Trigger.
* - TIM10 and TIM11 can only generate an update event and Capture Compare 1 event.
* @retval None
*/
void TIM_GenerateEvent(TIM_TypeDef* TIMx, uint16_t TIM_EventSource)
{
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
assert_param(IS_TIM_EVENT_SOURCE(TIM_EventSource));
/* Set the event sources */
TIMx->EGR = TIM_EventSource;
}
/**
* @brief Checks whether the specified TIM flag is set or not.
* @param TIMx: where x can be 2 to 11 to select the TIM peripheral.
* @param TIM_FLAG: specifies the flag to check.
* This parameter can be one of the following values:
* @arg TIM_FLAG_Update: TIM update Flag
* @arg TIM_FLAG_CC1: TIM Capture Compare 1 Flag
* @arg TIM_FLAG_CC2: TIM Capture Compare 2 Flag
* @arg TIM_FLAG_CC3: TIM Capture Compare 3 Flag
* @arg TIM_FLAG_CC4: TIM Capture Compare 4 Flag
* @arg TIM_FLAG_Trigger: TIM Trigger Flag
* @arg TIM_FLAG_CC1OF: TIM Capture Compare 1 overcapture Flag
* @arg TIM_FLAG_CC2OF: TIM Capture Compare 2 overcapture Flag
* @arg TIM_FLAG_CC3OF: TIM Capture Compare 3 overcapture Flag
* @arg TIM_FLAG_CC4OF: TIM Capture Compare 4 overcapture Flag
* @note
* - TIM6 and TIM7 can have only one update flag.
* - TIM9 can have only update flag, TIM_FLAG_CC1, TIM_FLAG_CC2 and TIM_FLAG_Trigger,
* TIM_FLAG_CC1OF or TIM_FLAG_CC2OF flags
* - TIM10 and TIM11 can have only update flag, TIM_FLAG_CC1 or TIM_FLAG_CC1OF flags
* @retval The new state of TIM_FLAG (SET or RESET).
*/
FlagStatus TIM_GetFlagStatus(TIM_TypeDef* TIMx, uint16_t TIM_FLAG)
{
ITStatus bitstatus = RESET;
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
assert_param(IS_TIM_GET_FLAG(TIM_FLAG));
if ((TIMx->SR & TIM_FLAG) != (uint16_t)RESET)
{
bitstatus = SET;
}
else
{
bitstatus = RESET;
}
return bitstatus;
}
/**
* @brief Clears the TIMx's pending flags.
* @param TIMx: where x can be 2 to 11 to select the TIM peripheral.
* @param TIM_FLAG: specifies the flag bit to clear.
* This parameter can be any combination of the following values:
* @arg TIM_FLAG_Update: TIM update Flag
* @arg TIM_FLAG_CC1: TIM Capture Compare 1 Flag
* @arg TIM_FLAG_CC2: TIM Capture Compare 2 Flag
* @arg TIM_FLAG_CC3: TIM Capture Compare 3 Flag
* @arg TIM_FLAG_CC4: TIM Capture Compare 4 Flag
* @arg TIM_FLAG_Trigger: TIM Trigger Flag
* @arg TIM_FLAG_CC1OF: TIM Capture Compare 1 overcapture Flag
* @arg TIM_FLAG_CC2OF: TIM Capture Compare 2 overcapture Flag
* @arg TIM_FLAG_CC3OF: TIM Capture Compare 3 overcapture Flag
* @arg TIM_FLAG_CC4OF: TIM Capture Compare 4 overcapture Flag
* @note
* - TIM6 and TIM7 can have only one update flag.
* - TIM9 can have only update flag, TIM_FLAG_CC1, TIM_FLAG_CC2 and TIM_FLAG_Trigger flags
* TIM_FLAG_CC1OF or TIM_FLAG_CC2OF flags
* - TIM10 and TIM11 can have only update flag, TIM_FLAG_CC1
* or TIM_FLAG_CC1OF flags
* @retval None
*/
void TIM_ClearFlag(TIM_TypeDef* TIMx, uint16_t TIM_FLAG)
{
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
assert_param(IS_TIM_CLEAR_FLAG(TIM_FLAG));
/* Clear the flags */
TIMx->SR = (uint16_t)~TIM_FLAG;
}
/**
* @brief Checks whether the TIM interrupt has occurred or not.
* @param TIMx: where x can be 2 to 11 to select the TIM peripheral.
* @param TIM_IT: specifies the TIM interrupt source to check.
* This parameter can be one of the following values:
* @arg TIM_IT_Update: TIM update Interrupt source
* @arg TIM_IT_CC1: TIM Capture Compare 1 Interrupt source
* @arg TIM_IT_CC2: TIM Capture Compare 2 Interrupt source
* @arg TIM_IT_CC3: TIM Capture Compare 3 Interrupt source
* @arg TIM_IT_CC4: TIM Capture Compare 4 Interrupt source
* @arg TIM_IT_Trigger: TIM Trigger Interrupt source
* @note
* - TIM6 and TIM7 can generate only an update interrupt.
* - TIM9 can have only update interrupt, TIM_FLAG_CC1 or TIM_FLAG_CC2,
* interrupt and TIM_IT_Trigger interrupt.
* - TIM10 and TIM11 can have only update interrupt or TIM_FLAG_CC1
* interrupt
* @retval The new state of the TIM_IT(SET or RESET).
*/
ITStatus TIM_GetITStatus(TIM_TypeDef* TIMx, uint16_t TIM_IT)
{
ITStatus bitstatus = RESET;
uint16_t itstatus = 0x0, itenable = 0x0;
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
assert_param(IS_TIM_GET_IT(TIM_IT));
itstatus = TIMx->SR & TIM_IT;
itenable = TIMx->DIER & TIM_IT;
if ((itstatus != (uint16_t)RESET) && (itenable != (uint16_t)RESET))
{
bitstatus = SET;
}
else
{
bitstatus = RESET;
}
return bitstatus;
}
/**
* @brief Clears the TIMx's interrupt pending bits.
* @param TIMx: where x can be 2 to 11 to select the TIM peripheral.
* @param TIM_IT: specifies the pending bit to clear.
* This parameter can be any combination of the following values:
* @arg TIM_IT_Update: TIM update Interrupt source
* @arg TIM_IT_CC1: TIM Capture Compare 1 Interrupt source
* @arg TIM_IT_CC2: TIM Capture Compare 2 Interrupt source
* @arg TIM_IT_CC3: TIM Capture Compare 3 Interrupt source
* @arg TIM_IT_CC4: TIM Capture Compare 4 Interrupt source
* @arg TIM_IT_Trigger: TIM Trigger Interrupt source
* @note
* - TIM6 and TIM7 can generate only an update interrupt.
* - TIM9 can have only update interrupt, TIM_IT_CC1 or TIM_IT_CC2,
* and TIM_IT_Trigger interrupt.
* - TIM10 and TIM11 can have only update interrupt or TIM_IT_CC1
* interrupt
* @retval None
*/
void TIM_ClearITPendingBit(TIM_TypeDef* TIMx, uint16_t TIM_IT)
{
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
assert_param(IS_TIM_IT(TIM_IT));
/* Clear the IT pending Bit */
TIMx->SR = (uint16_t)~TIM_IT;
}
/**
* @brief Configures the TIMx<4D>s DMA interface.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_DMABase: DMA Base address.
* This parameter can be one of the following values:
* @arg TIM_DMABase_CR, TIM_DMABase_CR2, TIM_DMABase_SMCR,
* TIM_DMABase_DIER, TIM_DMABase_SR, TIM_DMABase_EGR,
* TIM_DMABase_CCMR1, TIM_DMABase_CCMR2, TIM_DMABase_CCER,
* TIM_DMABase_CNT, TIM_DMABase_PSC, TIM_DMABase_ARR,
* TIM_DMABase_CCR1, TIM_DMABase_CCR2, TIM_DMABase_CCR3,
* TIM_DMABase_CCR4, TIM_DMABase_DCR.
* @param TIM_DMABurstLength: DMA Burst length.
* This parameter can be one value between:
* TIM_DMABurstLength_1Byte and TIM_DMABurstLength_18Bytes.
* @retval None
*/
void TIM_DMAConfig(TIM_TypeDef* TIMx, uint16_t TIM_DMABase, uint16_t TIM_DMABurstLength)
{
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_TIM_DMA_BASE(TIM_DMABase));
assert_param(IS_TIM_DMA_LENGTH(TIM_DMABurstLength));
/* Set the DMA Base and the DMA Burst Length */
TIMx->DCR = TIM_DMABase | TIM_DMABurstLength;
}
/**
* @brief Enables or disables the TIMx<4D>s DMA Requests.
* @param TIMx: where x can be 2, 3, 4, 6 or 7 to select the TIM peripheral.
* @param TIM_DMASource: specifies the DMA Request sources.
* This parameter can be any combination of the following values:
* @arg TIM_DMA_Update: TIM update Interrupt source
* @arg TIM_DMA_CC1: TIM Capture Compare 1 DMA source
* @arg TIM_DMA_CC2: TIM Capture Compare 2 DMA source
* @arg TIM_DMA_CC3: TIM Capture Compare 3 DMA source
* @arg TIM_DMA_CC4: TIM Capture Compare 4 DMA source
* @arg TIM_DMA_Trigger: TIM Trigger DMA source
* @param NewState: new state of the DMA Request sources.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void TIM_DMACmd(TIM_TypeDef* TIMx, uint16_t TIM_DMASource, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_TIM_LIST4_PERIPH(TIMx));
assert_param(IS_TIM_DMA_SOURCE(TIM_DMASource));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the DMA sources */
TIMx->DIER |= TIM_DMASource;
}
else
{
/* Disable the DMA sources */
TIMx->DIER &= (uint16_t)~TIM_DMASource;
}
}
/**
* @brief Selects the TIMx peripheral Capture Compare DMA source.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param NewState: new state of the Capture Compare DMA source
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void TIM_SelectCCDMA(TIM_TypeDef* TIMx, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Set the CCDS Bit */
TIMx->CR2 |= TIM_CR2_CCDS;
}
else
{
/* Reset the CCDS Bit */
TIMx->CR2 &= (uint16_t)~((uint16_t)TIM_CR2_CCDS);
}
}
/**
* @}
*/
/** @defgroup TIM_Group5 Clocks management functions
* @brief Clocks management functions
*
@verbatim
===============================================================================
Clocks management functions
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Configures the TIMx internal Clock
* @param TIMx: where x can be 2, 3, 4 or 9 to select the TIM peripheral.
* @retval None
*/
void TIM_InternalClockConfig(TIM_TypeDef* TIMx)
{
/* Check the parameters */
assert_param(IS_TIM_LIST2_PERIPH(TIMx));
/* Disable slave mode to clock the prescaler directly with the internal clock */
TIMx->SMCR &= (uint16_t)(~((uint16_t)TIM_SMCR_SMS));
}
/**
* @brief Configures the TIMx Internal Trigger as External Clock
* @param TIMx: where x can be 2, 3, 4 or 9 to select the TIM peripheral.
* @param TIM_ITRSource: Trigger source.
* This parameter can be one of the following values:
* @param TIM_TS_ITR0: Internal Trigger 0
* @param TIM_TS_ITR1: Internal Trigger 1
* @param TIM_TS_ITR2: Internal Trigger 2
* @param TIM_TS_ITR3: Internal Trigger 3
* @retval None
*/
void TIM_ITRxExternalClockConfig(TIM_TypeDef* TIMx, uint16_t TIM_InputTriggerSource)
{
/* Check the parameters */
assert_param(IS_TIM_LIST2_PERIPH(TIMx));
assert_param(IS_TIM_INTERNAL_TRIGGER_SELECTION(TIM_InputTriggerSource));
/* Select the Internal Trigger */
TIM_SelectInputTrigger(TIMx, TIM_InputTriggerSource);
/* Select the External clock mode1 */
TIMx->SMCR |= TIM_SlaveMode_External1;
}
/**
* @brief Configures the TIMx Trigger as External Clock
* @param TIMx: where x can be 2, 3, 4 or 9 to select the TIM peripheral.
* @param TIM_TIxExternalCLKSource: Trigger source.
* This parameter can be one of the following values:
* @arg TIM_TIxExternalCLK1Source_TI1ED: TI1 Edge Detector
* @arg TIM_TIxExternalCLK1Source_TI1: Filtered Timer Input 1
* @arg TIM_TIxExternalCLK1Source_TI2: Filtered Timer Input 2
* @param TIM_ICPolarity: specifies the TIx Polarity.
* This parameter can be one of the following values:
* @arg TIM_ICPolarity_Rising
* @arg TIM_ICPolarity_Falling
* @param ICFilter : specifies the filter value.
* This parameter must be a value between 0x0 and 0xF.
* @retval None
*/
void TIM_TIxExternalClockConfig(TIM_TypeDef* TIMx, uint16_t TIM_TIxExternalCLKSource,
uint16_t TIM_ICPolarity, uint16_t ICFilter)
{
/* Check the parameters */
assert_param(IS_TIM_LIST2_PERIPH(TIMx));
assert_param(IS_TIM_IC_POLARITY(TIM_ICPolarity));
assert_param(IS_TIM_IC_FILTER(ICFilter));
/* Configure the Timer Input Clock Source */
if (TIM_TIxExternalCLKSource == TIM_TIxExternalCLK1Source_TI2)
{
TI2_Config(TIMx, TIM_ICPolarity, TIM_ICSelection_DirectTI, ICFilter);
}
else
{
TI1_Config(TIMx, TIM_ICPolarity, TIM_ICSelection_DirectTI, ICFilter);
}
/* Select the Trigger source */
TIM_SelectInputTrigger(TIMx, TIM_TIxExternalCLKSource);
/* Select the External clock mode1 */
TIMx->SMCR |= TIM_SlaveMode_External1;
}
/**
* @brief Configures the External clock Mode1
* @param TIMx: where x can be 2, 3, 4 or 9 to select the TIM peripheral.
* @param TIM_ExtTRGPrescaler: The external Trigger Prescaler.
* This parameter can be one of the following values:
* @arg TIM_ExtTRGPSC_OFF: ETRP Prescaler OFF.
* @arg TIM_ExtTRGPSC_DIV2: ETRP frequency divided by 2.
* @arg TIM_ExtTRGPSC_DIV4: ETRP frequency divided by 4.
* @arg TIM_ExtTRGPSC_DIV8: ETRP frequency divided by 8.
* @param TIM_ExtTRGPolarity: The external Trigger Polarity.
* This parameter can be one of the following values:
* @arg TIM_ExtTRGPolarity_Inverted: active low or falling edge active.
* @arg TIM_ExtTRGPolarity_NonInverted: active high or rising edge active.
* @param ExtTRGFilter: External Trigger Filter.
* This parameter must be a value between 0x00 and 0x0F
* @retval None
*/
void TIM_ETRClockMode1Config(TIM_TypeDef* TIMx, uint16_t TIM_ExtTRGPrescaler, uint16_t TIM_ExtTRGPolarity,
uint16_t ExtTRGFilter)
{
uint16_t tmpsmcr = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST2_PERIPH(TIMx));
assert_param(IS_TIM_EXT_PRESCALER(TIM_ExtTRGPrescaler));
assert_param(IS_TIM_EXT_POLARITY(TIM_ExtTRGPolarity));
assert_param(IS_TIM_EXT_FILTER(ExtTRGFilter));
/* Configure the ETR Clock source */
TIM_ETRConfig(TIMx, TIM_ExtTRGPrescaler, TIM_ExtTRGPolarity, ExtTRGFilter);
/* Get the TIMx SMCR register value */
tmpsmcr = TIMx->SMCR;
/* Reset the SMS Bits */
tmpsmcr &= (uint16_t)(~((uint16_t)TIM_SMCR_SMS));
/* Select the External clock mode1 */
tmpsmcr |= TIM_SlaveMode_External1;
/* Select the Trigger selection : ETRF */
tmpsmcr &= (uint16_t)(~((uint16_t)TIM_SMCR_TS));
tmpsmcr |= TIM_TS_ETRF;
/* Write to TIMx SMCR */
TIMx->SMCR = tmpsmcr;
}
/**
* @brief Configures the External clock Mode2
* @param TIMx: where x can be 2, 3, 4, 9, 10 or 11 to select the TIM peripheral.
* @param TIM_ExtTRGPrescaler: The external Trigger Prescaler.
* This parameter can be one of the following values:
* @arg TIM_ExtTRGPSC_OFF: ETRP Prescaler OFF.
* @arg TIM_ExtTRGPSC_DIV2: ETRP frequency divided by 2.
* @arg TIM_ExtTRGPSC_DIV4: ETRP frequency divided by 4.
* @arg TIM_ExtTRGPSC_DIV8: ETRP frequency divided by 8.
* @param TIM_ExtTRGPolarity: The external Trigger Polarity.
* This parameter can be one of the following values:
* @arg TIM_ExtTRGPolarity_Inverted: active low or falling edge active.
* @arg TIM_ExtTRGPolarity_NonInverted: active high or rising edge active.
* @param ExtTRGFilter: External Trigger Filter.
* This parameter must be a value between 0x00 and 0x0F
* @retval None
*/
void TIM_ETRClockMode2Config(TIM_TypeDef* TIMx, uint16_t TIM_ExtTRGPrescaler,
uint16_t TIM_ExtTRGPolarity, uint16_t ExtTRGFilter)
{
/* Check the parameters */
assert_param(IS_TIM_LIST1_PERIPH(TIMx));
assert_param(IS_TIM_EXT_PRESCALER(TIM_ExtTRGPrescaler));
assert_param(IS_TIM_EXT_POLARITY(TIM_ExtTRGPolarity));
assert_param(IS_TIM_EXT_FILTER(ExtTRGFilter));
/* Configure the ETR Clock source */
TIM_ETRConfig(TIMx, TIM_ExtTRGPrescaler, TIM_ExtTRGPolarity, ExtTRGFilter);
/* Enable the External clock mode2 */
TIMx->SMCR |= TIM_SMCR_ECE;
}
/**
* @}
*/
/** @defgroup TIM_Group6 Synchronization management functions
* @brief Synchronization management functions
*
@verbatim
===============================================================================
Synchronization management functions
===============================================================================
===================================================================
TIM Driver: how to use it in synchronization Mode
===================================================================
Case of two/several Timers
**************************
1. Configure the Master Timers using the following functions:
- void TIM_SelectOutputTrigger(TIM_TypeDef* TIMx, uint16_t TIM_TRGOSource);
- void TIM_SelectMasterSlaveMode(TIM_TypeDef* TIMx, uint16_t TIM_MasterSlaveMode);
2. Configure the Slave Timers using the following functions:
- void TIM_SelectInputTrigger(TIM_TypeDef* TIMx, uint16_t TIM_InputTriggerSource);
- void TIM_SelectSlaveMode(TIM_TypeDef* TIMx, uint16_t TIM_SlaveMode);
Case of Timers and external trigger(ETR pin)
********************************************
1. Configure the Etrenal trigger using this function:
- void TIM_ETRConfig(TIM_TypeDef* TIMx, uint16_t TIM_ExtTRGPrescaler, uint16_t TIM_ExtTRGPolarity,
uint16_t ExtTRGFilter);
2. Configure the Slave Timers using the following functions:
- void TIM_SelectInputTrigger(TIM_TypeDef* TIMx, uint16_t TIM_InputTriggerSource);
- void TIM_SelectSlaveMode(TIM_TypeDef* TIMx, uint16_t TIM_SlaveMode);
@endverbatim
* @{
*/
/**
* @brief Selects the Input Trigger source
* @param TIMx: where x can be 2, 3, 4 or 9 to select the TIM peripheral.
* @param TIM_InputTriggerSource: The Input Trigger source.
* This parameter can be one of the following values:
* @arg TIM_TS_ITR0: Internal Trigger 0
* @arg TIM_TS_ITR1: Internal Trigger 1
* @arg TIM_TS_ITR2: Internal Trigger 2
* @arg TIM_TS_ITR3: Internal Trigger 3
* @arg TIM_TS_TI1F_ED: TI1 Edge Detector
* @arg TIM_TS_TI1FP1: Filtered Timer Input 1
* @arg TIM_TS_TI2FP2: Filtered Timer Input 2
* @arg TIM_TS_ETRF: External Trigger input
* @retval None
*/
void TIM_SelectInputTrigger(TIM_TypeDef* TIMx, uint16_t TIM_InputTriggerSource)
{
uint16_t tmpsmcr = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST1_PERIPH(TIMx));
assert_param(IS_TIM_TRIGGER_SELECTION(TIM_InputTriggerSource));
/* Get the TIMx SMCR register value */
tmpsmcr = TIMx->SMCR;
/* Reset the TS Bits */
tmpsmcr &= (uint16_t)(~((uint16_t)TIM_SMCR_TS));
/* Set the Input Trigger source */
tmpsmcr |= TIM_InputTriggerSource;
/* Write to TIMx SMCR */
TIMx->SMCR = tmpsmcr;
}
/**
* @brief Selects the TIMx Trigger Output Mode.
* @param TIMx: where x can be 2, 3, 4, 6, 7 or 9 to select the TIM peripheral.
* @param TIM_TRGOSource: specifies the Trigger Output source.
* This paramter can be one of the following values:
*
* - For all TIMx
* @arg TIM_TRGOSource_Reset: The UG bit in the TIM_EGR register is used as the trigger output (TRGO).
* @arg TIM_TRGOSource_Enable: The Counter Enable CEN is used as the trigger output (TRGO).
* @arg TIM_TRGOSource_Update: The update event is selected as the trigger output (TRGO).
*
* - For all TIMx except TIM6 and TIM7
* @arg TIM_TRGOSource_OC1: The trigger output sends a positive pulse when the CC1IF flag
* is to be set, as soon as a capture or compare match occurs (TRGO).
* @arg TIM_TRGOSource_OC1Ref: OC1REF signal is used as the trigger output (TRGO).
* - For all TIMx except TIM6, TIM7, TIM10 and TIM11
* @arg TIM_TRGOSource_OC2Ref: OC2REF signal is used as the trigger output (TRGO).
* - For TIM2, TIM3 and TIM4
* @arg TIM_TRGOSource_OC3Ref: OC3REF signal is used as the trigger output (TRGO).
* @arg TIM_TRGOSource_OC4Ref: OC4REF signal is used as the trigger output (TRGO).
*
* @retval None
*/
void TIM_SelectOutputTrigger(TIM_TypeDef* TIMx, uint16_t TIM_TRGOSource)
{
/* Check the parameters */
assert_param(IS_TIM_LIST5_PERIPH(TIMx));
assert_param(IS_TIM_TRGO_SOURCE(TIM_TRGOSource));
/* Reset the MMS Bits */
TIMx->CR2 &= (uint16_t)~((uint16_t)TIM_CR2_MMS);
/* Select the TRGO source */
TIMx->CR2 |= TIM_TRGOSource;
}
/**
* @brief Selects the TIMx Slave Mode.
* @param TIMx: where x can be 2, 3, 4 or 9 to select the TIM peripheral.
* @param TIM_SlaveMode: specifies the Timer Slave Mode.
* This paramter can be one of the following values:
* @arg TIM_SlaveMode_Reset: Rising edge of the selected trigger signal (TRGI) re-initializes
* the counter and triggers an update of the registers.
* @arg TIM_SlaveMode_Gated: The counter clock is enabled when the trigger signal (TRGI) is high.
* @arg TIM_SlaveMode_Trigger: The counter starts at a rising edge of the trigger TRGI.
* @arg TIM_SlaveMode_External1: Rising edges of the selected trigger (TRGI) clock the counter.
* @retval None
*/
void TIM_SelectSlaveMode(TIM_TypeDef* TIMx, uint16_t TIM_SlaveMode)
{
/* Check the parameters */
assert_param(IS_TIM_LIST2_PERIPH(TIMx));
assert_param(IS_TIM_SLAVE_MODE(TIM_SlaveMode));
/* Reset the SMS Bits */
TIMx->SMCR &= (uint16_t)~((uint16_t)TIM_SMCR_SMS);
/* Select the Slave Mode */
TIMx->SMCR |= TIM_SlaveMode;
}
/**
* @brief Sets or Resets the TIMx Master/Slave Mode.
* @param TIMx: where x can be 2, 3, 4 or 9 to select the TIM peripheral.
* @param TIM_MasterSlaveMode: specifies the Timer Master Slave Mode.
* This paramter can be one of the following values:
* @arg TIM_MasterSlaveMode_Enable: synchronization between the current timer
* and its slaves (through TRGO).
* @arg TIM_MasterSlaveMode_Disable: No action
* @retval None
*/
void TIM_SelectMasterSlaveMode(TIM_TypeDef* TIMx, uint16_t TIM_MasterSlaveMode)
{
/* Check the parameters */
assert_param(IS_TIM_LIST2_PERIPH(TIMx));
assert_param(IS_TIM_MSM_STATE(TIM_MasterSlaveMode));
/* Reset the MSM Bit */
TIMx->SMCR &= (uint16_t)~((uint16_t)TIM_SMCR_MSM);
/* Set or Reset the MSM Bit */
TIMx->SMCR |= TIM_MasterSlaveMode;
}
/**
* @brief Configures the TIMx External Trigger (ETR).
* @param TIMx: where x can be 2, 3, 4, 9, 10 or 11 to select the TIM peripheral.
* @param TIM_ExtTRGPrescaler: The external Trigger Prescaler.
* This parameter can be one of the following values:
* @arg TIM_ExtTRGPSC_OFF: ETRP Prescaler OFF.
* @arg TIM_ExtTRGPSC_DIV2: ETRP frequency divided by 2.
* @arg TIM_ExtTRGPSC_DIV4: ETRP frequency divided by 4.
* @arg TIM_ExtTRGPSC_DIV8: ETRP frequency divided by 8.
* @param TIM_ExtTRGPolarity: The external Trigger Polarity.
* This parameter can be one of the following values:
* @arg TIM_ExtTRGPolarity_Inverted: active low or falling edge active.
* @arg TIM_ExtTRGPolarity_NonInverted: active high or rising edge active.
* @param ExtTRGFilter: External Trigger Filter.
* This parameter must be a value between 0x00 and 0x0F
* @retval None
*/
void TIM_ETRConfig(TIM_TypeDef* TIMx, uint16_t TIM_ExtTRGPrescaler, uint16_t TIM_ExtTRGPolarity,
uint16_t ExtTRGFilter)
{
uint16_t tmpsmcr = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST1_PERIPH(TIMx));
assert_param(IS_TIM_EXT_PRESCALER(TIM_ExtTRGPrescaler));
assert_param(IS_TIM_EXT_POLARITY(TIM_ExtTRGPolarity));
assert_param(IS_TIM_EXT_FILTER(ExtTRGFilter));
tmpsmcr = TIMx->SMCR;
/* Reset the ETR Bits */
tmpsmcr &= SMCR_ETR_MASK;
/* Set the Prescaler, the Filter value and the Polarity */
tmpsmcr |= (uint16_t)(TIM_ExtTRGPrescaler | (uint16_t)(TIM_ExtTRGPolarity | (uint16_t)(ExtTRGFilter << (uint16_t)8)));
/* Write to TIMx SMCR */
TIMx->SMCR = tmpsmcr;
}
/**
* @}
*/
/** @defgroup TIM_Group7 Specific interface management functions
* @brief Specific interface management functions
*
@verbatim
===============================================================================
Specific interface management functions
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Configures the TIMx Encoder Interface.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_EncoderMode: specifies the TIMx Encoder Mode.
* This parameter can be one of the following values:
* @arg TIM_EncoderMode_TI1: Counter counts on TI1FP1 edge depending on TI2FP2 level.
* @arg TIM_EncoderMode_TI2: Counter counts on TI2FP2 edge depending on TI1FP1 level.
* @arg TIM_EncoderMode_TI12: Counter counts on both TI1FP1 and TI2FP2 edges depending
* on the level of the other input.
* @param TIM_IC1Polarity: specifies the IC1 Polarity
* This parmeter can be one of the following values:
* @arg TIM_ICPolarity_Falling: IC Falling edge.
* @arg TIM_ICPolarity_Rising: IC Rising edge.
* @param TIM_IC2Polarity: specifies the IC2 Polarity
* This parmeter can be one of the following values:
* @arg TIM_ICPolarity_Falling: IC Falling edge.
* @arg TIM_ICPolarity_Rising: IC Rising edge.
* @retval None
*/
void TIM_EncoderInterfaceConfig(TIM_TypeDef* TIMx, uint16_t TIM_EncoderMode,
uint16_t TIM_IC1Polarity, uint16_t TIM_IC2Polarity)
{
uint16_t tmpsmcr = 0;
uint16_t tmpccmr1 = 0;
uint16_t tmpccer = 0;
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_TIM_ENCODER_MODE(TIM_EncoderMode));
assert_param(IS_TIM_IC_POLARITY(TIM_IC1Polarity));
assert_param(IS_TIM_IC_POLARITY(TIM_IC2Polarity));
/* Get the TIMx SMCR register value */
tmpsmcr = TIMx->SMCR;
/* Get the TIMx CCMR1 register value */
tmpccmr1 = TIMx->CCMR1;
/* Get the TIMx CCER register value */
tmpccer = TIMx->CCER;
/* Set the encoder Mode */
tmpsmcr &= (uint16_t)(~((uint16_t)TIM_SMCR_SMS));
tmpsmcr |= TIM_EncoderMode;
/* Select the Capture Compare 1 and the Capture Compare 2 as input */
tmpccmr1 &= (uint16_t)(((uint16_t)~((uint16_t)TIM_CCMR1_CC1S)) & (uint16_t)(~((uint16_t)TIM_CCMR1_CC2S)));
tmpccmr1 |= TIM_CCMR1_CC1S_0 | TIM_CCMR1_CC2S_0;
/* Set the TI1 and the TI2 Polarities */
tmpccer &= (uint16_t)(((uint16_t)~((uint16_t)TIM_CCER_CC1P)) & ((uint16_t)~((uint16_t)TIM_CCER_CC2P)));
tmpccer |= (uint16_t)(TIM_IC1Polarity | (uint16_t)(TIM_IC2Polarity << (uint16_t)4));
/* Write to TIMx SMCR */
TIMx->SMCR = tmpsmcr;
/* Write to TIMx CCMR1 */
TIMx->CCMR1 = tmpccmr1;
/* Write to TIMx CCER */
TIMx->CCER = tmpccer;
}
/**
* @brief Enables or disables the TIMx<4D>s Hall sensor interface.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param NewState: new state of the TIMx Hall sensor interface.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void TIM_SelectHallSensor(TIM_TypeDef* TIMx, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_TIM_LIST3_PERIPH(TIMx));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Set the TI1S Bit */
TIMx->CR2 |= TIM_CR2_TI1S;
}
else
{
/* Reset the TI1S Bit */
TIMx->CR2 &= (uint16_t)~((uint16_t)TIM_CR2_TI1S);
}
}
/**
* @}
*/
/** @defgroup TIM_Group8 Specific remapping management function
* @brief Specific remapping management function
*
@verbatim
===============================================================================
Specific remapping management function
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Configures the TIM9, TIM10 and TIM11 Remapping input Capabilities.
* @param TIMx: where x can be 9, 10 or 11 to select the TIM peripheral.
* @param TIM_Remap: specifies the TIM input remapping source.
* This parameter can be one of the following values:
* @arg TIM9_GPIO: TIM9 Channel 1 is connected to dedicated Timer pin(default)
* @arg TIM9_LSE: TIM9 Channel 1 is connected to LSE clock.
* @arg TIM10_GPIO: TIM10 Channel 1 is connected to dedicated Timer pin(default)
* @arg TIM10_LSI: TIM10 Channel 1 is connected to LSI clock.
* @arg TIM10_LSE: TIM10 Channel 1 is connected to LSE clock.
* @arg TIM10_RTC: TIM10 Channel 1 is connected to RTC Output event.
* @arg TIM11_GPIO: TIM11 Channel 1 is connected to dedicated Timer pin(default)
* @arg TIM11_MSI: TIM11 Channel 1 is connected to MSI clock.
* @arg TIM11_HSE_RTC: TIM11 Channel 1 is connected to HSE_RTC clock.
* @retval None
*/
void TIM_RemapConfig(TIM_TypeDef* TIMx, uint16_t TIM_Remap)
{
/* Check the parameters */
assert_param(IS_TIM_LIST6_PERIPH(TIMx));
assert_param(IS_TIM_REMAP(TIM_Remap));
/* Set the Timer remapping configuration */
TIMx->OR = TIM_Remap;
}
/**
* @}
*/
/**
* @brief Configure the TI1 as Input.
* @param TIMx: where x can be 2, 3, 4, 9, 10 or 11 to select the TIM peripheral.
* @param TIM_ICPolarity : The Input Polarity.
* This parameter can be one of the following values:
* @arg TIM_ICPolarity_Rising
* @arg TIM_ICPolarity_Falling
* @param TIM_ICSelection: specifies the input to be used.
* This parameter can be one of the following values:
* @arg TIM_ICSelection_DirectTI: TIM Input 1 is selected to be connected to IC1.
* @arg TIM_ICSelection_IndirectTI: TIM Input 1 is selected to be connected to IC2.
* @arg TIM_ICSelection_TRC: TIM Input 1 is selected to be connected to TRC.
* @param TIM_ICFilter: Specifies the Input Capture Filter.
* This parameter must be a value between 0x00 and 0x0F.
* @retval None
*/
static void TI1_Config(TIM_TypeDef* TIMx, uint16_t TIM_ICPolarity, uint16_t TIM_ICSelection,
uint16_t TIM_ICFilter)
{
uint16_t tmpccmr1 = 0, tmpccer = 0;
/* Disable the Channel 1: Reset the CC1E Bit */
TIMx->CCER &= (uint16_t)~((uint16_t)TIM_CCER_CC1E);
tmpccmr1 = TIMx->CCMR1;
tmpccer = TIMx->CCER;
/* Select the Input and set the filter */
tmpccmr1 &= (uint16_t)(((uint16_t)~((uint16_t)TIM_CCMR1_CC1S)) & ((uint16_t)~((uint16_t)TIM_CCMR1_IC1F)));
tmpccmr1 |= (uint16_t)(TIM_ICSelection | (uint16_t)(TIM_ICFilter << (uint16_t)4));
/* Select the Polarity and set the CC1E Bit */
tmpccer &= (uint16_t)~((uint16_t)(TIM_CCER_CC1P | TIM_CCER_CC1NP));
tmpccer |= (uint16_t)(TIM_ICPolarity | (uint16_t)TIM_CCER_CC1E);
/* Write to TIMx CCMR1 and CCER registers */
TIMx->CCMR1 = tmpccmr1;
TIMx->CCER = tmpccer;
}
/**
* @brief Configure the TI2 as Input.
* @param TIMx: where x can be 2, 3, 4 or 9 to select the TIM peripheral.
* @param TIM_ICPolarity : The Input Polarity.
* This parameter can be one of the following values:
* @arg TIM_ICPolarity_Rising
* @arg TIM_ICPolarity_Falling
* @param TIM_ICSelection: specifies the input to be used.
* This parameter can be one of the following values:
* @arg TIM_ICSelection_DirectTI: TIM Input 2 is selected to be connected to IC2.
* @arg TIM_ICSelection_IndirectTI: TIM Input 2 is selected to be connected to IC1.
* @arg TIM_ICSelection_TRC: TIM Input 2 is selected to be connected to TRC.
* @param TIM_ICFilter: Specifies the Input Capture Filter.
* This parameter must be a value between 0x00 and 0x0F.
* @retval None
*/
static void TI2_Config(TIM_TypeDef* TIMx, uint16_t TIM_ICPolarity, uint16_t TIM_ICSelection,
uint16_t TIM_ICFilter)
{
uint16_t tmpccmr1 = 0, tmpccer = 0, tmp = 0;
/* Disable the Channel 2: Reset the CC2E Bit */
TIMx->CCER &= (uint16_t)~((uint16_t)TIM_CCER_CC2E);
tmpccmr1 = TIMx->CCMR1;
tmpccer = TIMx->CCER;
tmp = (uint16_t)(TIM_ICPolarity << 4);
/* Select the Input and set the filter */
tmpccmr1 &= (uint16_t)(((uint16_t)~((uint16_t)TIM_CCMR1_CC2S)) & ((uint16_t)~((uint16_t)TIM_CCMR1_IC2F)));
tmpccmr1 |= (uint16_t)(TIM_ICFilter << 12);
tmpccmr1 |= (uint16_t)(TIM_ICSelection << 8);
/* Select the Polarity and set the CC2E Bit */
tmpccer &= (uint16_t)~((uint16_t)(TIM_CCER_CC2P | TIM_CCER_CC2NP));
tmpccer |= (uint16_t)(tmp | (uint16_t)TIM_CCER_CC2E);
/* Write to TIMx CCMR1 and CCER registers */
TIMx->CCMR1 = tmpccmr1 ;
TIMx->CCER = tmpccer;
}
/**
* @brief Configure the TI3 as Input.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_ICPolarity : The Input Polarity.
* This parameter can be one of the following values:
* @arg TIM_ICPolarity_Rising
* @arg TIM_ICPolarity_Falling
* @param TIM_ICSelection: specifies the input to be used.
* This parameter can be one of the following values:
* @arg TIM_ICSelection_DirectTI: TIM Input 3 is selected to be connected to IC3.
* @arg TIM_ICSelection_IndirectTI: TIM Input 3 is selected to be connected to IC4.
* @arg TIM_ICSelection_TRC: TIM Input 3 is selected to be connected to TRC.
* @param TIM_ICFilter: Specifies the Input Capture Filter.
* This parameter must be a value between 0x00 and 0x0F.
* @retval None
*/
static void TI3_Config(TIM_TypeDef* TIMx, uint16_t TIM_ICPolarity, uint16_t TIM_ICSelection,
uint16_t TIM_ICFilter)
{
uint16_t tmpccmr2 = 0, tmpccer = 0, tmp = 0;
/* Disable the Channel 3: Reset the CC3E Bit */
TIMx->CCER &= (uint16_t)~((uint16_t)TIM_CCER_CC3E);
tmpccmr2 = TIMx->CCMR2;
tmpccer = TIMx->CCER;
tmp = (uint16_t)(TIM_ICPolarity << 8);
/* Select the Input and set the filter */
tmpccmr2 &= (uint16_t)(((uint16_t)~((uint16_t)TIM_CCMR2_CC3S)) & ((uint16_t)~((uint16_t)TIM_CCMR2_IC3F)));
tmpccmr2 |= (uint16_t)(TIM_ICSelection | (uint16_t)(TIM_ICFilter << (uint16_t)4));
/* Select the Polarity and set the CC3E Bit */
tmpccer &= (uint16_t)~((uint16_t)(TIM_CCER_CC3P | TIM_CCER_CC3NP));
tmpccer |= (uint16_t)(tmp | (uint16_t)TIM_CCER_CC3E);
/* Write to TIMx CCMR2 and CCER registers */
TIMx->CCMR2 = tmpccmr2;
TIMx->CCER = tmpccer;
}
/**
* @brief Configure the TI4 as Input.
* @param TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
* @param TIM_ICPolarity : The Input Polarity.
* This parameter can be one of the following values:
* @arg TIM_ICPolarity_Rising
* @arg TIM_ICPolarity_Falling
* @param TIM_ICSelection: specifies the input to be used.
* This parameter can be one of the following values:
* @arg TIM_ICSelection_DirectTI: TIM Input 4 is selected to be connected to IC4.
* @arg TIM_ICSelection_IndirectTI: TIM Input 4 is selected to be connected to IC3.
* @arg TIM_ICSelection_TRC: TIM Input 4 is selected to be connected to TRC.
* @param TIM_ICFilter: Specifies the Input Capture Filter.
* This parameter must be a value between 0x00 and 0x0F.
* @retval None
*/
static void TI4_Config(TIM_TypeDef* TIMx, uint16_t TIM_ICPolarity, uint16_t TIM_ICSelection,
uint16_t TIM_ICFilter)
{
uint16_t tmpccmr2 = 0, tmpccer = 0, tmp = 0;
/* Disable the Channel 4: Reset the CC4E Bit */
TIMx->CCER &= (uint16_t)~((uint16_t)TIM_CCER_CC4E);
tmpccmr2 = TIMx->CCMR2;
tmpccer = TIMx->CCER;
tmp = (uint16_t)(TIM_ICPolarity << 12);
/* Select the Input and set the filter */
tmpccmr2 &= (uint16_t)((uint16_t)(~(uint16_t)TIM_CCMR2_CC4S) & ((uint16_t)~((uint16_t)TIM_CCMR2_IC4F)));
tmpccmr2 |= (uint16_t)(TIM_ICSelection << 8);
tmpccmr2 |= (uint16_t)(TIM_ICFilter << 12);
/* Select the Polarity and set the CC4E Bit */
tmpccer &= (uint16_t)~((uint16_t)(TIM_CCER_CC4P | TIM_CCER_CC4NP));
tmpccer |= (uint16_t)(tmp | (uint16_t)TIM_CCER_CC4E);
/* Write to TIMx CCMR2 and CCER registers */
TIMx->CCMR2 = tmpccmr2;
TIMx->CCER = tmpccer ;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/******************* (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/
Reference in New Issue View Git Blame Copy Permalink