/******************** (C) COPYRIGHT 2006 STMicroelectronics ******************** | |
* File Name : 75x_tim.c | |
* Author : MCD Application Team | |
* Date First Issued : 03/10/2006 | |
* Description : This file provides all the TIM software functions. | |
******************************************************************************** | |
* History: | |
* 07/17/2006 : V1.0 | |
* 03/10/2006 : V0.1 | |
******************************************************************************** | |
* THE PRESENT SOFTWARE 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 SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING | |
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. | |
*******************************************************************************/ | |
/* Includes ------------------------------------------------------------------*/ | |
#include "75x_tim.h" | |
#include "75x_mrcc.h" | |
/* Private typedef -----------------------------------------------------------*/ | |
/* Private define ------------------------------------------------------------*/ | |
/* Private macro -------------------------------------------------------------*/ | |
/* Private variables ---------------------------------------------------------*/ | |
/* TIM interrupt masks */ | |
#define TIM_IT_Clear_Mask 0x7FFF | |
#define TIM_IT_Enable_Mask 0x7FFF | |
/* TIM Input Capture Selection Set/Reset */ | |
#define TIM_IC1S_Set 0x0001 | |
#define TIM_IC1S_Reset 0x003E | |
/* TIM Input Capture Selection Set/Reset */ | |
#define TIM_IC2S_Set 0x0002 | |
#define TIM_IC2S_Reset 0x003D | |
/* TIM_SCR Masks bit */ | |
#define TIM_Encoder_Mask 0x731C | |
#define TIM_SlaveModeSelection_Mask 0x7307 | |
#define TIM_TriggerSelection_Mask 0x701F | |
#define TIM_InternalTriggerSelection_Mask 0x031F | |
/* TIM Encoder mode Set value */ | |
#define TIM_Encoder1_Set 0x0001 | |
#define TIM_Encoder2_Set 0x0002 | |
#define TIM_Encoder3_Set 0x0003 | |
/* TIM Slave Mode Enable Set/Reset value */ | |
#define TIM_SME_Reset 0x731B | |
#define TIM_SME_Set 0x0004 | |
/* TIM Internal Trigger Selection value */ | |
#define TIM_ITS_TIM0 0x1000 | |
#define TIM_ITS_TIM1 0x2000 | |
#define TIM_ITS_TIM2 0x3000 | |
#define TIM_ITS_PWM 0x4000 | |
/* TIM Trigger Selection value */ | |
#define TIM_TS_IC1_Set 0x0200 | |
#define TIM_TS_IC2_Set 0x0300 | |
/* TIM Slave Mode selction external clock Set value */ | |
#define TIM_SMS_EXTCLK_Set 0x0008 | |
#define TIM_SMS_RESETCLK_Set 0x0000 | |
/* TIM_CR Masks bit */ | |
#define TIM_DBASE_Mask 0x077F | |
#define TIM_MasterModeSelection_Mask 0xFC7F | |
#define TIM_CounterMode_Mask 0xFF8F | |
/* TIM Update flag selection Set/Reset value */ | |
#define TIM_UFS_Reset 0xFFFE | |
#define TIM_UFS_Set 0x0001 | |
/* TIM Counter value */ | |
#define TIM_COUNTER_Reset 0x0002 | |
#define TIM_COUNTER_Start 0x0004 | |
#define TIM_COUNTER_Stop 0xFFFB | |
/* TIM One pulse Mode set value */ | |
#define TIM_OPM_Set 0x0008 | |
#define TIM_OPM_Reset 0xFFF7 | |
/* TIM Debug Mode Set/Reset value */ | |
#define TIM_DBGC_Set 0x0400 | |
#define TIM_DBGC_Reset 0xFB7F | |
/* TIM Input Capture Enable/Disable value */ | |
#define TIM_IC1_Enable 0x0004 | |
#define TIM_IC2_Enable 0x0010 | |
/* TIM Input Capture Polarity Set/Reset value */ | |
#define TIM_IC1P_Set 0x0008 | |
#define TIM_IC2P_Set 0x0020 | |
#define TIM_IC1P_Reset 0x0037 | |
#define TIM_IC2P_Reset 0x001F | |
/* TIM Output Compare Polarity Set/Reset value */ | |
#define TIM_OC1P_Set 0x0020 | |
#define TIM_OC2P_Set 0x2000 | |
#define TIM_OC1P_Reset 0x3F1F | |
#define TIM_OC2P_Reset 0x1F3F | |
/* TIM Output Compare control mode constant */ | |
#define TIM_OCControl_PWM 0x000C | |
#define TIM_OCControl_OCToggle 0x0006 | |
#define TIM_OCControl_OCInactive 0x0004 | |
#define TIM_OCControl_OCActive 0x0002 | |
#define TIM_OCControl_OCTiming 0x0000 | |
/* TIM Output Compare mode Enable value */ | |
#define TIM_OC1_Enable 0x0010 | |
#define TIM_OC2_Enable 0x1000 | |
/* TIM Output Compare mode Mask value */ | |
#define TIM_OC1C_Mask 0x3F31 | |
#define TIM_OC2C_Mask 0x313F | |
/* TIM Preload bit Set/Reset value */ | |
#define TIM_PLD1_Set 0x0001 | |
#define TIM_PLD1_Reset 0xFFFE | |
#define TIM_PLD2_Set 0x0100 | |
#define TIM_PLD2_Reset 0xFEFF | |
/* TIM OCRM Set/Reset value */ | |
#define TIM_OCRM_Set 0x0080 | |
#define TIM_OCRM_Reset 0x030D | |
/* Reset Register Masks */ | |
#define TIM_Pulse2_Reset_Mask 0x0000 | |
#define TIM_Prescaler_Reset_Mask 0x0000 | |
#define TIM_Pulse1_Reset_Mask 0x0000 | |
#define TIM_Period_Reset_Mask 0xFFFF | |
#define TIM_Counter_Reset 0x0002 | |
/* Private function prototypes -----------------------------------------------*/ | |
static void ICAP_ModuleConfig(TIM_TypeDef* TIMx, TIM_InitTypeDef* TIM_InitStruct); | |
static void Encoder_ModeConfig(TIM_TypeDef* TIMx, TIM_InitTypeDef* TIM_InitStruct); | |
static void OCM_ModuleConfig(TIM_TypeDef* TIMx, TIM_InitTypeDef* TIM_InitStruct); | |
/* Private functions ---------------------------------------------------------*/ | |
/****************************************************************************** | |
* Function Name : TIM_DeInit | |
* Description : Deinitializes TIM peripheral registers to their default reset | |
* values. | |
* Input : TIMx: where x can be 0, 1 or 2 to select the TIM peripheral. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void TIM_DeInit(TIM_TypeDef *TIMx) | |
{ | |
if(TIMx == TIM0) | |
{ | |
MRCC_PeripheralSWResetConfig(MRCC_Peripheral_TIM0,ENABLE); | |
MRCC_PeripheralSWResetConfig(MRCC_Peripheral_TIM0,DISABLE); | |
} | |
else if(TIMx == TIM1) | |
{ | |
MRCC_PeripheralSWResetConfig(MRCC_Peripheral_TIM1,ENABLE); | |
MRCC_PeripheralSWResetConfig(MRCC_Peripheral_TIM1,DISABLE); | |
} | |
else if(TIMx == TIM2) | |
{ | |
MRCC_PeripheralSWResetConfig(MRCC_Peripheral_TIM2,ENABLE); | |
MRCC_PeripheralSWResetConfig(MRCC_Peripheral_TIM2,DISABLE); | |
} | |
} | |
/******************************************************************************* | |
* Function Name : TIM_Init | |
* Description : Initializes the TIMx peripheral according to the specified | |
* parameters in the TIM_InitStruct . | |
* Input : - TIMx: where x can be 0, 1 or 2 to select the TIM peripheral. | |
* - TIM_InitStruct: pointer to a TIM_InitTypeDef structure that | |
* contains the configuration information for the specified TIM | |
* peripheral. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void TIM_Init(TIM_TypeDef* TIMx, TIM_InitTypeDef* TIM_InitStruct) | |
{ | |
/* Set the prescaler value */ | |
TIMx->PSC = TIM_InitStruct->TIM_Prescaler; | |
/* Select the clock source */ | |
TIM_ClockSourceConfig(TIMx, TIM_InitStruct->TIM_ClockSource, | |
TIM_InitStruct->TIM_ExtCLKEdge); | |
/* Select the counter mode */ | |
TIMx->CR &= TIM_CounterMode_Mask; | |
TIMx->CR |= TIM_InitStruct->TIM_CounterMode; | |
/* Set the period value */ | |
TIMx->ARR = TIM_InitStruct->TIM_Period; | |
switch(TIM_InitStruct->TIM_Mode) | |
{ | |
case TIM_Mode_OCTiming: case TIM_Mode_OCActive: case TIM_Mode_OCInactive: | |
case TIM_Mode_OCToggle: case TIM_Mode_PWM: | |
OCM_ModuleConfig(TIMx, TIM_InitStruct); | |
break; | |
case TIM_Mode_PWMI: case TIM_Mode_IC: | |
ICAP_ModuleConfig(TIMx, TIM_InitStruct); | |
break; | |
case TIM_Mode_Encoder1: case TIM_Mode_Encoder2: case TIM_Mode_Encoder3: | |
Encoder_ModeConfig(TIMx, TIM_InitStruct); | |
break; | |
case TIM_Mode_OPM_PWM: case TIM_Mode_OPM_Toggle: case TIM_Mode_OPM_Active: | |
/* Output module configuration */ | |
OCM_ModuleConfig(TIMx, TIM_InitStruct); | |
/* Input module configuration */ | |
ICAP_ModuleConfig(TIMx, TIM_InitStruct); | |
/* Set the slave mode to trigger Mode */ | |
TIMx->SCR |= TIM_SynchroMode_Trigger; | |
/* Repetitive pulse state selection */ | |
if(TIM_InitStruct->TIM_RepetitivePulse == TIM_RepetitivePulse_Disable) | |
{ | |
TIMx->CR |= TIM_OPM_Set; | |
} | |
else | |
{ | |
TIMx->CR &= TIM_OPM_Reset; | |
} | |
break; | |
default: | |
break; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : TIM_StructInit | |
* Description : Fills each TIM_InitStruct member with its default value. | |
* Input : TIM_InitStruct : pointer to a TIM_InitTypeDef structure | |
* which will be initialized. | |
* Output : None | |
* Return : None. | |
*******************************************************************************/ | |
void TIM_StructInit(TIM_InitTypeDef *TIM_InitStruct) | |
{ | |
/* Set the default configuration */ | |
TIM_InitStruct->TIM_Mode = TIM_Mode_OCTiming; | |
TIM_InitStruct->TIM_Prescaler = TIM_Prescaler_Reset_Mask; | |
TIM_InitStruct->TIM_ClockSource = TIM_ClockSource_Internal; | |
TIM_InitStruct->TIM_ExtCLKEdge = TIM_ExtCLKEdge_Rising; | |
TIM_InitStruct->TIM_CounterMode = TIM_CounterMode_Up; | |
TIM_InitStruct->TIM_Period = TIM_Period_Reset_Mask; | |
TIM_InitStruct->TIM_Channel = TIM_Channel_ALL; | |
TIM_InitStruct->TIM_Pulse1 = TIM_Pulse1_Reset_Mask; | |
TIM_InitStruct->TIM_Pulse2 = TIM_Pulse2_Reset_Mask; | |
TIM_InitStruct->TIM_RepetitivePulse = TIM_RepetitivePulse_Disable; | |
TIM_InitStruct->TIM_Polarity1 = TIM_Polarity1_Low; | |
TIM_InitStruct->TIM_Polarity2 = TIM_Polarity2_Low; | |
TIM_InitStruct->TIM_IC1Selection = TIM_IC1Selection_TI1; | |
TIM_InitStruct->TIM_IC2Selection = TIM_IC2Selection_TI1; | |
TIM_InitStruct->TIM_IC1Polarity = TIM_IC1Polarity_Rising; | |
TIM_InitStruct->TIM_IC2Polarity = TIM_IC2Polarity_Rising; | |
TIM_InitStruct->TIM_PWMI_ICSelection = TIM_PWMI_ICSelection_TI1; | |
TIM_InitStruct->TIM_PWMI_ICPolarity = TIM_PWMI_ICPolarity_Rising; | |
} | |
/******************************************************************************* | |
* Function Name : TIM_Cmd | |
* Description : Enables or disables the specified TIM peripheral. | |
* Input : - TIMx: where x can be 0, 1 or 2 to select the TIM peripheral. | |
* - Newstate: new state of the TIMx peripheral. | |
* This parameter can be: ENABLE or DISABLE. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void TIM_Cmd(TIM_TypeDef *TIMx, FunctionalState Newstate) | |
{ | |
if(Newstate == ENABLE) | |
{ | |
TIMx->CR |= TIM_COUNTER_Start; | |
} | |
else | |
{ | |
TIMx->CR &= TIM_COUNTER_Stop; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : TIM_ITConfig | |
* Description : Enables or disables the TIM interrupts. | |
* Input : - TIMx: where x can be 0, 1 or 2 to select the TIM peripheral. | |
* - TIM_IT: specifies the TIM interrupts sources to be enabled | |
* or disabled. | |
* This parameter can be any combination of the following values: | |
* - TIM_IT_IC1: Input Capture 1 Interrupt | |
* - TIM_IT_OC1: Output Compare 1 Interrupt | |
* - TIM_IT_Update: Timer update Interrupt | |
* - TIM_IT_GlobalUpdate: Timer global update Interrupt | |
* - TIM_IT_IC2: Input Capture 2 Interrupt | |
* - TIM_IT_OC2: Output Compare 2 Interrupt | |
* - Newstate: new state of the specified TIMx interrupts. | |
* This parameter can be: ENABLE or DISABLE. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void TIM_ITConfig(TIM_TypeDef *TIMx, u16 TIM_IT, FunctionalState Newstate) | |
{ | |
u16 TIM_IT_Enable = 0; | |
TIM_IT_Enable = TIM_IT & TIM_IT_Enable_Mask; | |
if(Newstate == ENABLE) | |
{ | |
/* Update interrupt global source: overflow/undeflow, counter reset operation | |
or slave mode controller in reset mode */ | |
if((TIM_IT & TIM_IT_GlobalUpdate) == TIM_IT_GlobalUpdate) | |
{ | |
TIMx->CR &= TIM_UFS_Reset; | |
} | |
/* Update interrupt source: counter overflow/underflow */ | |
else if((TIM_IT & TIM_IT_Update) == TIM_IT_Update) | |
{ | |
TIMx->CR |= TIM_UFS_Set; | |
} | |
/* Select and enable the interrupts requests */ | |
TIMx->RSR |= TIM_IT_Enable; | |
TIMx->RER |= TIM_IT_Enable; | |
} | |
/* Disable the interrupts requests */ | |
else | |
{ | |
TIMx->RSR &= ~TIM_IT_Enable; | |
TIMx->RER &= ~TIM_IT_Enable; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : TIM_PreloadConfig | |
* Description : Enables or disables TIM peripheral Preload register on OCRx. | |
* Input : - TIMx: where x can be 0, 1 or 2 to select the TIM peripheral. | |
* - TIM_Channel: specifies the TIM channel to be used. | |
* This parameter can be one of the following values: | |
* - TIM_Channel_1: TIM Channel 1 is used | |
* - TIM_Channel_2: TIM Channel 2 is used | |
* - TIM_Channel_ALL: TIM Channel 1and 2 are used | |
* - Newstate: new state of the TIMx peripheral Preload register | |
* This parameter can be: ENABLE or DISABLE. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void TIM_PreloadConfig(TIM_TypeDef *TIMx, u16 TIM_Channel, FunctionalState Newstate) | |
{ | |
if(Newstate == ENABLE) | |
{ | |
switch (TIM_Channel) | |
{ | |
case TIM_Channel_1: | |
TIMx->OMR1 |= TIM_PLD1_Set; | |
break; | |
case TIM_Channel_2: | |
TIMx->OMR1 |= TIM_PLD2_Set; | |
break; | |
case TIM_Channel_ALL: | |
TIMx->OMR1 |= TIM_PLD1_Set | TIM_PLD2_Set; | |
break; | |
default: | |
break; | |
} | |
} | |
else | |
{ | |
switch (TIM_Channel) | |
{ | |
case TIM_Channel_1: | |
TIMx->OMR1 &= TIM_PLD1_Reset; | |
break; | |
case TIM_Channel_2: | |
TIMx->OMR1 &= TIM_PLD2_Reset; | |
break; | |
case TIM_Channel_ALL: | |
TIMx->OMR1 &= TIM_PLD1_Reset & TIM_PLD2_Reset; | |
break; | |
default: | |
break; | |
} | |
} | |
} | |
/******************************************************************************* | |
* Function Name : TIM_DMAConfig | |
* Description : Configures the TIM0Â’s DMA interface. | |
* Input : - TIM_DMASources: specifies the DMA Request sources. | |
* This parameter can be any combination of the following values: | |
* - TIM_DMASource_OC1: Output Compare 1 DMA source | |
* - TIM_DMASource_OC2: Output Compare 2 DMA source | |
* - TIM_DMASource_IC1: Input Capture 1 DMA source | |
* - TIM_DMASource_IC2: Input Capture 2 DMA source | |
* - TIM_DMASource_Update: Timer Update DMA source | |
* - TIM_OCRMState: the state of output compare request mode. | |
* This parameter can be one of the following values: | |
* - TIM_OCRMState_Enable | |
* - TIM_OCRMState_Disable | |
* - TIM_DMABase:DMA Base address. | |
* This parameter can be one of the following values: | |
* TIM_DMABase_CR, TIM_DMABase_SCR, TIM_DMABase_IMCR, | |
* TIM_DMABase_OMR1, TIM_DMABase_RSR, | |
* TIM_DMABase_RER, TIM_DMABase_ISR, TIM_DMABase_CNT, | |
* TIM_DMABase_PSC, TIM_DMABase_ARR, TIM_DMABase_OCR1, | |
* TIM_DMABase_OCR2, TIM_DMABase_ICR1, TIM_DMABase_ICR2 | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void TIM_DMAConfig(u16 TIM_DMASources, u16 TIM_OCRMState, u16 TIM_DMABase) | |
{ | |
/* Select the DMA requests */ | |
TIM0->RSR &= TIM_DMASources; | |
/* Set the OCRM state */ | |
if(TIM_OCRMState == TIM_OCRMState_Enable) | |
{ | |
TIM0->RSR |= TIM_OCRM_Set; | |
} | |
else | |
{ | |
TIM0->RSR &= TIM_OCRM_Reset; | |
} | |
/* Set the DMA Base address */ | |
TIM0->CR &= TIM_DBASE_Mask; | |
TIM0->CR |= TIM_DMABase; | |
} | |
/******************************************************************************* | |
* Function Name : TIM_DMACmd | |
* Description : Enables or disables the TIM0Â’s DMA interface. | |
* Input : - TIM_DMASources: specifies the DMA Request sources. | |
* This parameter can be any combination of the following values: | |
* - TIM_DMASource_OC1: Output Compare 1 DMA source | |
* - TIM_DMASource_OC2: Output Compare 2 DMA source | |
* - TIM_DMASource_IC1: Input Capture 1 DMA source | |
* - TIM_DMASource_IC2: Input Capture 2 DMA source | |
* - TIM_DMASource_Update: Timer Update DMA source | |
* - Newstate: new state of the DMA Request sources. | |
* This parameter can be: ENABLE or DISABLE. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void TIM_DMACmd(u16 TIM_DMASources, FunctionalState Newstate) | |
{ | |
if(Newstate == ENABLE) | |
{ | |
TIM0->RER |= TIM_DMASources; | |
} | |
else | |
{ | |
TIM0->RER &= ~TIM_DMASources; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : TIM_ClockSourceConfig | |
* Description : Configures the TIM clock source. | |
* Input : - TIMx: where x can be 0, 1 or 2 to select the TIM peripheral. | |
* - TIM_ClockSource: specifies the TIM clock source to be | |
* selected. | |
* This parameter can be one of the following values: | |
* - TIM_ClockSource_Internal: CK_TIM internal clock | |
* - TIM_ClockSource_TI11: External input pin TI1 | |
* connected to IC1 channel. | |
* - TIM_ClockSource_TI12: External input pin TI1 | |
* connected to IC2 channel. | |
* - TIM_ClockSource_TI22: External input pin TI2 | |
* connected to IC2 channel. | |
* - TIM_ClockSource_TI21: External input pin TI2 | |
* connected to IC1 channel. | |
* - TIM_ExtCLKEdge: specifies the External input signal edge. | |
* This parameter can be one of the following values: | |
* - TIM_ExtCLKEdge_Falling : Falling edge selected. | |
* - TIM_ExtCLKEdge_Rising : Rising edge selected. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void TIM_ClockSourceConfig(TIM_TypeDef *TIMx, u16 TIM_ClockSource, | |
u16 TIM_ExtCLKEdge) | |
{ | |
if(TIM_ClockSource == TIM_ClockSource_Internal) | |
{ | |
/* CK_TIM is used as clock source */ | |
TIMx->SCR &= TIM_SME_Reset & TIM_SlaveModeSelection_Mask & TIM_TriggerSelection_Mask; | |
} | |
else | |
/* Input Captures are used as TIM external clock */ | |
{ | |
TIMx->SCR &= TIM_SME_Reset & TIM_SlaveModeSelection_Mask & TIM_TriggerSelection_Mask; | |
TIMx->SCR |= TIM_SMS_EXTCLK_Set | TIM_SME_Set; | |
if((TIM_ClockSource == TIM_ClockSource_TI11) || | |
(TIM_ClockSource == TIM_ClockSource_TI21)) | |
/* Input Capture 1 is selected */ | |
{ | |
/* Input capture Enable */ | |
TIMx->IMCR |= TIM_IC1_Enable; | |
TIMx->SCR |= TIM_TS_IC1_Set; | |
if(TIM_ExtCLKEdge == TIM_ExtCLKEdge_Falling) | |
/* Set the corresponding polarity */ | |
{ | |
TIMx->IMCR |= TIM_IC1P_Set; | |
} | |
else | |
{ | |
TIMx->IMCR &= TIM_IC1P_Reset; | |
} | |
if(TIM_ClockSource == TIM_ClockSource_TI11) | |
{ | |
/* External signal TI1 connected to IC1 channel */ | |
TIMx->IMCR &= TIM_IC1S_Reset; | |
} | |
else | |
{ | |
/* External signal TI2 connected to IC1 channel */ | |
TIMx->IMCR |= TIM_IC1S_Set; | |
} | |
} | |
else | |
/* Input Capture 2 is selected */ | |
{ | |
/* Input capture Enable */ | |
TIMx->IMCR |= TIM_IC2_Enable; | |
TIMx->SCR |= TIM_TS_IC2_Set; | |
if(TIM_ExtCLKEdge == TIM_ExtCLKEdge_Falling) | |
/* Set the corresponding polarity */ | |
{ | |
TIMx->IMCR |= TIM_IC2P_Set; | |
} | |
else | |
{ | |
TIMx->IMCR &= TIM_IC2P_Reset; | |
} | |
if(TIM_ClockSource == TIM_ClockSource_TI22) | |
{ | |
/* External signal TI2 connected to IC2 channel */ | |
TIMx->IMCR &= TIM_IC2S_Reset; | |
} | |
else | |
{ | |
/* External signal TI1 connected to IC2 channel */ | |
TIMx->IMCR |= TIM_IC2S_Set; | |
} | |
} | |
} | |
} | |
/******************************************************************************* | |
* Function Name : TIM_SetPrescaler | |
* Description : Sets the TIM prescaler value. | |
* Input : - TIMx: where x can be 0, 1 or 2 to select the TIM peripheral | |
* - Prescaler: TIM prescaler new value. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void TIM_SetPrescaler(TIM_TypeDef* TIMx, u16 Prescaler) | |
{ | |
TIMx->PSC = Prescaler; | |
} | |
/******************************************************************************* | |
* Function Name : TIM_SetPeriod | |
* Description : Sets the TIM period value. | |
* Input : - TIMx: where x can be 0, 1 or 2 to select the TIM peripheral | |
* - Period: TIM period new value. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void TIM_SetPeriod(TIM_TypeDef* TIMx, u16 Period) | |
{ | |
TIMx->ARR = Period; | |
} | |
/******************************************************************************* | |
* Function Name : TIM_SetPulse | |
* Description : Sets the TIM pulse value. | |
* Input : - TIMx: where x can be 0, 1 or 2 to select the TIM peripheral | |
* - TIM_Channel: specifies the TIM channel to be used. | |
* This parameter can be one of the following values: | |
* - TIM_Channel_1: TIM Channel 1 is used | |
* - TIM_Channel_2: TIM Channel 2 is used | |
* - TIM_Channel_ALL: TIM Channel 1and 2 are used | |
* - Pulse: TIM pulse new value. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void TIM_SetPulse(TIM_TypeDef* TIMx, u16 TIM_Channel, u16 Pulse) | |
{ | |
/* Set Channel 1 pulse value */ | |
if(TIM_Channel == TIM_Channel_1) | |
{ | |
TIMx->OCR1 = Pulse; | |
} | |
/* Set Channel 2 pulse value */ | |
else if(TIM_Channel == TIM_Channel_2) | |
{ | |
TIMx->OCR2 = Pulse; | |
} | |
/* Set Channel 1 and Channel 2 pulse values */ | |
else if(TIM_Channel == TIM_Channel_ALL) | |
{ | |
TIMx->OCR1 = Pulse; | |
TIMx->OCR2 = Pulse; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : TIM_GetICAP1 | |
* Description : Gets the Input Capture 1 value. | |
* Input : TIMx: where x can be 0, 1 or 2 to select the TIM peripheral | |
* Output : None | |
* Return : Input Capture 1 Register value. | |
*******************************************************************************/ | |
u16 TIM_GetICAP1(TIM_TypeDef *TIMx) | |
{ | |
return TIMx->ICR1; | |
} | |
/******************************************************************************* | |
* Function Name : TIM_GetICAP2 | |
* Description : Gets the Input Capture 2 value. | |
* Input : TIMx: where x can be 0, 1 or 2 to select the TIM peripheral | |
* Output : None | |
* Return : Input Capture 2 Register value | |
*******************************************************************************/ | |
u16 TIM_GetICAP2(TIM_TypeDef *TIMx) | |
{ | |
return TIMx->ICR2; | |
} | |
/******************************************************************************* | |
* Function Name : TIM_GetPWMIPulse | |
* Description : Gets the PWM Input pulse value. | |
* Input : TIMx: where x can be 0, 1 or 2 to select the TIM peripheral | |
* Output : None | |
* Return : Input Capture 2 Register value | |
*******************************************************************************/ | |
u16 TIM_GetPWMIPulse(TIM_TypeDef *TIMx) | |
{ | |
return TIMx->ICR2; | |
} | |
/******************************************************************************* | |
* Function Name : TIM_GetPWMIPeriod | |
* Description : Gets the PWM Input period value. | |
* Input : TIMx: where x can be 0, 1 or 2 to select the TIM peripheral | |
* Output : None | |
* Return : Input Capture 1 Register value | |
*******************************************************************************/ | |
u16 TIM_GetPWMIPeriod(TIM_TypeDef *TIMx) | |
{ | |
return TIMx->ICR1; | |
} | |
/******************************************************************************* | |
* Function Name : TIM_DebugCmd | |
* Description : Enables or disables the specified TIM peripheral Debug control. | |
* Input : - TIMx: where x can be 0, 1 or 2 to select the TIM peripheral | |
* - Newstate: new state of the TIMx Debug control. | |
This parameter can be: ENABLE or DISABLE. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void TIM_DebugCmd(TIM_TypeDef *TIMx, FunctionalState Newstate) | |
{ | |
if(Newstate == ENABLE) | |
{ | |
TIMx->CR |= TIM_DBGC_Set; | |
} | |
else | |
{ | |
TIMx->CR &= TIM_DBGC_Reset; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : TIM_CounterModeConfig | |
* Description : Specifies the Counter Mode to be used. | |
* Input : - TIMx: where x can be 0, 1 or 2 to select the TIM peripheral. | |
* - TIM_CounterMode: specifies the Counter Mode to be used | |
* This parameter can be one of the following values: | |
* - TIM_CounterMode_Up: TIM Up Counting Mode | |
* - TIM_CounterMode_Down: TIM Down Counting Mode | |
* - TIM_CounterMode_CenterAligned1: TIM Center Aligned Mode1 | |
* - TIM_CounterMode_CenterAligned2: TIM Center Aligned Mode2 | |
* - TIM_CounterMode_CenterAligned3: TIM Center Aligned Mode3 | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void TIM_CounterModeConfig(TIM_TypeDef* TIMx, u16 TIM_CounterMode) | |
{ | |
/* Counter mode configuration */ | |
TIMx->CR &= TIM_CounterMode_Mask; | |
TIMx->CR |= TIM_CounterMode; | |
} | |
/******************************************************************************* | |
* Function Name : TIM_ForcedOCConfig | |
* Description : Forces the TIM output waveform to active or inactive level. | |
* Input : - TIMx: where x can be 0, 1 or 2 to select the TIM peripheral. | |
* - TIM_Channel: specifies the TIM channel to be used. | |
* This parameter can be one of the following values: | |
* - TIM_Channel_1: Timer Channel 1 is used | |
* - TIM_Channel_2: Timer Channel 2 is used | |
* - TIM_Channel_ALL: Timer Channel 1 and 2 are used | |
* - TIM_ForcedAction: specifies the forced Action to be set to | |
* the output waveform. | |
* This parameter can be one of the following values: | |
* - TIM_ForcedAction_Active: Force active level on OCxREF | |
* - TIM_ForcedAction_InActive: Force inactive level on | |
* OCxREF. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void TIM_ForcedOCConfig(TIM_TypeDef* TIMx, u16 TIM_Channel,u16 TIM_ForcedAction) | |
{ | |
/* Channel 1 Forced Output Compare mode configuration */ | |
if(TIM_Channel == TIM_Channel_1) | |
{ | |
TIMx->OMR1 &= TIM_OC1C_Mask; | |
TIMx->OMR1 |= TIM_ForcedAction; | |
} | |
/* Channel 2 Forced Output Compare mode configuration */ | |
else | |
{ | |
if(TIM_Channel == TIM_Channel_2) | |
{ | |
TIMx->OMR1 &= TIM_OC2C_Mask; | |
TIMx->OMR1 |= (TIM_ForcedAction<<8); | |
} | |
/* Channel 1 and Channel 2 Forced Output Compare mode configuration */ | |
else | |
{ | |
TIMx->OMR1 &= TIM_OC1C_Mask & TIM_OC2C_Mask; | |
TIMx->OMR1 |= TIM_ForcedAction |(TIM_ForcedAction<<8); | |
} | |
} | |
} | |
/******************************************************************************* | |
* Function Name : TIM_ResetCounter | |
* Description : Re-intializes the TIM counter and generates an update of the | |
* registers. | |
* Input : TIMx: where x can be 0, 1 or 2 to select the TIM peripheral | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void TIM_ResetCounter(TIM_TypeDef* TIMx) | |
{ | |
/* Re-intialize the TIM counter */ | |
TIMx->CR |= TIM_COUNTER_Reset; | |
} | |
/******************************************************************************* | |
* Function Name : TIM_SynchroConfig | |
* Description : Synchronizes two Timers in a specified mode. | |
* Input : - Master: specifies the peripheral master. | |
* This parameter can be one of the following values: | |
* PWM_Master, TIM0_Master, TIM1_Master or TIM2_Master. | |
* - Slave: specifies the peripheral slave. | |
* This parameter can be one of the following values: | |
* PWM_Slave, TIM0_Slave, TIM1_Slave or TIM2_Slave. | |
* - TIM_SynchroAction: specifies the synchronization Action to | |
* be used. | |
* This parameter can be one of the following values: | |
* - TIM_SynchroAction_Enable: The CNT_EN bit is used as TRGO | |
* - TIM_SynchroAction_Update: The Update event is used as TRGO | |
* - TIM_SynchroAction_Reset: The CNT_RST bit is used as TRGO | |
* - TIM_SynchroAction_OC: The OC1 signal is used as TRGO | |
* - TIM_SynchroMode: specifies the synchronization Mode to be used. | |
* This parameter can be one of the following values: | |
* - TIM_SynchroMode_Gated: Both start and stop of the | |
* counter is controlled. | |
* - TIM_SynchroMode_Trigger: Only the start of the | |
* counter is controlled. | |
* - TIM_SynchroMode_External: The rising edge of selected trigger | |
* clocks the counter. | |
* - TIM_SynchroMode_Reset: The rising edge of the selected trigger | |
* signal resets the counter and generates an update of the registers. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void TIM_SynchroConfig(Master_TypeDef Master, Slave_TypeDef Slave, | |
u16 TIM_SynchroAction, u16 TIM_SynchroMode) | |
{ | |
switch (Slave) | |
{ | |
case PWM_Slave: | |
{ | |
PWM->SCR &= TIM_SME_Reset & TIM_TriggerSelection_Mask & TIM_SlaveModeSelection_Mask & | |
TIM_InternalTriggerSelection_Mask; | |
PWM->SCR |= TIM_SynchroMode | TIM_SME_Set; | |
if(Master == TIM1_Master) | |
{ | |
/* Set the internal trigger */ | |
PWM->SCR |= TIM_ITS_TIM1; | |
/* Set the synchronization action */ | |
TIM1->CR &= TIM_MasterModeSelection_Mask; | |
TIM1->CR |= TIM_SynchroAction; | |
} | |
else if(Master == TIM0_Master) | |
{ | |
/* Set the internal trigger */ | |
PWM->SCR |= TIM_ITS_TIM0; | |
/* Set the synchronization action */ | |
TIM0->CR &= TIM_MasterModeSelection_Mask; | |
TIM0->CR |= TIM_SynchroAction; | |
} | |
else if(Master == TIM2_Master) | |
{ | |
/* Set the internal trigger */ | |
PWM->SCR |= TIM_ITS_TIM2; | |
/* Set the synchronization action */ | |
TIM2->CR &= TIM_MasterModeSelection_Mask; | |
TIM2->CR |= TIM_SynchroAction; | |
} | |
} | |
break; | |
case TIM0_Slave: | |
{ | |
TIM0->SCR &= TIM_SME_Reset & TIM_TriggerSelection_Mask & TIM_SlaveModeSelection_Mask & | |
TIM_InternalTriggerSelection_Mask; | |
TIM0->SCR |= TIM_SynchroMode | TIM_SME_Set; | |
if(Master == PWM_Master) | |
{ | |
/* Set the internal trigger */ | |
TIM0->SCR |= TIM_ITS_PWM; | |
/* Set the synchronization action */ | |
PWM->CR &= TIM_MasterModeSelection_Mask; | |
PWM->CR |= TIM_SynchroAction; | |
} | |
else if(Master == TIM1_Master) | |
{ | |
/* Set the internal trigger */ | |
TIM0->SCR |= TIM_ITS_TIM1; | |
/* Set the synchronization action */ | |
TIM1->CR &= TIM_MasterModeSelection_Mask; | |
TIM1->CR |= TIM_SynchroAction; | |
} | |
else if(Master == TIM2_Master) | |
{ | |
/* Set the internal trigger */ | |
TIM0->SCR |= TIM_ITS_TIM2; | |
/* Set the synchronization action */ | |
TIM2->CR &= TIM_MasterModeSelection_Mask; | |
TIM2->CR |= TIM_SynchroAction; | |
} | |
} | |
break; | |
case TIM1_Slave: | |
{ | |
TIM1->SCR &= TIM_SME_Reset & TIM_TriggerSelection_Mask & TIM_SlaveModeSelection_Mask & | |
TIM_InternalTriggerSelection_Mask; | |
TIM1->SCR |= TIM_SynchroMode | TIM_SME_Set; | |
if(Master == PWM_Master) | |
{ | |
/* Set the internal trigger */ | |
TIM1->SCR |= TIM_ITS_PWM; | |
/* Set the synchronization action */ | |
PWM->CR &= TIM_MasterModeSelection_Mask; | |
PWM->CR |= TIM_SynchroAction; | |
} | |
else if(Master == TIM0_Master) | |
{ | |
/* Set the internal trigger */ | |
TIM1->SCR |= TIM_ITS_TIM0; | |
/* Set the synchronization action */ | |
TIM0->CR &= TIM_MasterModeSelection_Mask; | |
TIM0->CR |= TIM_SynchroAction; | |
} | |
else if(Master == TIM2_Master) | |
{ | |
/* Set the internal trigger */ | |
TIM1->SCR |= TIM_ITS_TIM2; | |
/* Set the synchronization action */ | |
TIM2->CR &= TIM_MasterModeSelection_Mask; | |
TIM2->CR |= TIM_SynchroAction; | |
} | |
} | |
break; | |
case TIM2_Slave: | |
{ | |
TIM2->SCR &= TIM_SME_Reset & TIM_TriggerSelection_Mask & TIM_SlaveModeSelection_Mask & | |
TIM_InternalTriggerSelection_Mask; | |
TIM2->SCR |= TIM_SynchroMode | TIM_SME_Set; | |
if(Master == PWM_Master) | |
{ | |
/* Internal trigger selection */ | |
TIM2->SCR |= TIM_ITS_PWM; | |
/* Set the synchronization action */ | |
PWM->CR &= TIM_MasterModeSelection_Mask; | |
PWM->CR |= TIM_SynchroAction; | |
} | |
else if(Master == TIM1_Master) | |
{ | |
/* Internal trigger selection */ | |
TIM2->SCR |= TIM_ITS_TIM1; | |
/* Set the synchronization action */ | |
TIM1->CR &= TIM_MasterModeSelection_Mask; | |
TIM1->CR |= TIM_SynchroAction; | |
} | |
else if(Master == TIM0_Master) | |
{ | |
/* Internal trigger selection */ | |
TIM2->SCR |= TIM_ITS_TIM0; | |
/* Set the synchronization action */ | |
TIM0->CR &= TIM_MasterModeSelection_Mask; | |
TIM0->CR |= TIM_SynchroAction; | |
} | |
} | |
break; | |
default: | |
break; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : TIM_GetFlagStatus | |
* Description : Checks whether the specified TIM flag is set or not. | |
* Input : - TIMx: where x can be 0, 1 or 2 to select the TIM peripheral. | |
* - TIM_FLAG: specifies the flag to check. | |
* This parameter can be one of the following values: | |
* - TIM_FLAG_IC1: Input Capture 1 Flag | |
* - TIM_FLAG_OC1: Output Compare 1 Flag | |
* - TIM_FLAG_Update: Timer update Flag | |
* - TIM_FLAG_IC2: Input Capture 2 Flag | |
* - TIM_FLAG_OC2: Output Compare 2 Flag | |
* Output : None | |
* Return : The new state of TIM_FLAG (SET or RESET). | |
*******************************************************************************/ | |
FlagStatus TIM_GetFlagStatus(TIM_TypeDef* TIMx, u16 TIM_FLAG) | |
{ | |
if((TIMx->ISR & TIM_FLAG) != RESET ) | |
{ | |
return SET; | |
} | |
else | |
{ | |
return RESET; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : TIM_ClearFlag | |
* Description : Clears the TIMx's pending flags. | |
* Input : - TIMx: where x can be 0, 1 or 2 to select the TIM peripheral. | |
* - TIM_FLAG: specifies the flag bit to clear. | |
* This parameter can be any combination of the following values: | |
* - TIM_FLAG_IC1: Timer Input Capture 1 flag | |
* - TIM_FLAG_OC1: Timer Output Compare 1 flag | |
* - TIM_FLAG_Update: Timer update flag | |
* - TIM_FLAG_IC2: Timer Input Capture 2 flag | |
* - TIM_FLAG_OC2: Timer Output Compare 2 flag | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void TIM_ClearFlag(TIM_TypeDef* TIMx, u16 TIM_FLAG) | |
{ | |
/* Clear the flags */ | |
TIMx->ISR &= ~TIM_FLAG; | |
} | |
/******************************************************************************* | |
* Function Name : TIM_GetITStatus | |
* Description : Checks whether the specified TIM interrupt has occurred or not. | |
* Input : - TIMx: where x can be 0, 1 or 2 to select the TIM peripheral. | |
* - TIM_IT: specifies the TIM interrupt source to check. | |
* This parameter can be one of the following values: | |
* - TIM_IT_IC1: Input Capture 1 interrupt | |
* - TIM_IT_OC1: Output Compare 1 interrupt | |
* - TIM_IT_Update: Timer update interrupt | |
* - TIM_IT_GlobalUpdate: Timer global update interrupt | |
* - TIM_IT_IC2: Input Capture 2 interrupt | |
* - TIM_IT_OC2: Output Compare 2 interrupt | |
* Output : None | |
* Return : The new state of TIM_IT(SET or RESET). | |
*******************************************************************************/ | |
ITStatus TIM_GetITStatus(TIM_TypeDef* TIMx, u16 TIM_IT) | |
{ | |
u16 TIM_IT_Check = 0; | |
/* Calculates the pending bits to be checked */ | |
TIM_IT_Check = TIM_IT & TIM_IT_Clear_Mask; | |
if((TIMx->ISR & TIM_IT_Check) != RESET ) | |
{ | |
return SET; | |
} | |
else | |
{ | |
return RESET; | |
} | |
} | |
/******************************************************************************* | |
* Function Name : TIM_ClearITPendingBit | |
* Description : Clears the TIM's interrupt pending bits. | |
* Input : - TIMx: where x can be 0, 1 or 2 to select the TIM peripheral. | |
* - TIM_IT: specifies the interrupt pending bit to clear. | |
* This parameter can be one of the following values: | |
* - TIM_IT_IC1: Input Capture 1 Interrupt | |
* - TIM_IT_OC1: Output Compare 1 Interrupt | |
* - TIM_IT_Update: Timer update Interrupt | |
* - TIM_IT_GlobalUpdate: Timer global update Interrupt | |
* - TIM_IT_IC2: Input Capture 2 Interrupt | |
* - TIM_IT_OC2: Output Compare 2 Interrupt | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
void TIM_ClearITPendingBit(TIM_TypeDef* TIMx, u16 TIM_IT) | |
{ | |
u16 TIM_IT_Clear = 0; | |
/* Calculate the pending bits to be cleared */ | |
TIM_IT_Clear = TIM_IT & TIM_IT_Clear_Mask; | |
/* Clear the pending bits */ | |
TIMx->ISR &= ~TIM_IT_Clear; | |
} | |
/******************************************************************************* | |
* Function Name : OCM_ModuleConfig | |
* Description : Output Compare Module configuration | |
* Input : - TIMx: where x can be 0, 1 or 2 to select the TIM peripheral | |
* - TIM_InitStruct: pointer to a TIM_InitTypeDef structure that | |
* contains the configuration information for the specified TIM | |
* peripheral. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
static void OCM_ModuleConfig(TIM_TypeDef* TIMx, TIM_InitTypeDef* TIM_InitStruct) | |
{ | |
u16 TIM_OCControl = 0x0000; | |
if(TIM_InitStruct->TIM_Mode == TIM_Mode_OCTiming) | |
{ | |
TIM_OCControl = TIM_OCControl_OCTiming; | |
} | |
else | |
{ | |
if((TIM_InitStruct->TIM_Mode == TIM_Mode_OCActive) || | |
(TIM_InitStruct->TIM_Mode == TIM_Mode_OPM_Active)) | |
{ | |
TIM_OCControl = TIM_OCControl_OCActive; | |
} | |
else | |
{ | |
if(TIM_InitStruct->TIM_Mode == TIM_Mode_OCInactive) | |
{ | |
TIM_OCControl = TIM_OCControl_OCInactive; | |
} | |
else | |
{ | |
if((TIM_InitStruct->TIM_Mode == TIM_Mode_OCToggle) || | |
(TIM_InitStruct->TIM_Mode == TIM_Mode_OPM_Toggle)) | |
{ | |
TIM_OCControl = TIM_OCControl_OCToggle; | |
} | |
else | |
{ | |
TIM_OCControl = TIM_OCControl_PWM; | |
} | |
} | |
} | |
} | |
if(TIM_InitStruct->TIM_Channel == TIM_Channel_1) | |
{ | |
/* Configure Channel 1 on Output Compare mode */ | |
TIMx->OMR1 &= TIM_OC1C_Mask; | |
TIMx->OMR1 |= TIM_OCControl|TIM_OC1_Enable; | |
TIMx->OMR1 |= TIM_PLD1_Set; | |
TIMx->OCR1 = TIM_InitStruct->TIM_Pulse1; | |
/* Set the OC1 wave polarity */ | |
if(TIM_InitStruct->TIM_Polarity1 == TIM_Polarity1_Low) | |
{ | |
TIMx->OMR1 |= TIM_OC1P_Set; | |
} | |
else | |
{ | |
TIMx->OMR1 &= TIM_OC1P_Reset; | |
} | |
} | |
else | |
{ | |
if(TIM_InitStruct->TIM_Channel == TIM_Channel_2) | |
{ | |
/* Configure Channel 2 on Output Compare mode */ | |
TIMx->OMR1 &= TIM_OC2C_Mask; | |
TIMx->OMR1 |= TIM_OCControl<<8|TIM_OC2_Enable; | |
TIMx->OMR1 |= TIM_PLD2_Set; | |
TIMx->OCR2 = TIM_InitStruct->TIM_Pulse2; | |
/* Set the OCB wave polarity */ | |
if(TIM_InitStruct->TIM_Polarity2 == TIM_Polarity2_Low) | |
{ | |
TIMx->OMR1 |= TIM_OC2P_Set; | |
} | |
else | |
{ | |
TIMx->OMR1 &= TIM_OC2P_Reset; | |
} | |
} | |
/* Configure Channel 1 and Channel 2 on Output Compare mode */ | |
else | |
{ | |
TIMx->OMR1 &= TIM_OC1C_Mask & TIM_OC2C_Mask; | |
TIMx->OMR1 |= TIM_OCControl|(TIM_OCControl<<8)|TIM_OC1_Enable|TIM_OC2_Enable| | |
TIM_PLD1_Set|TIM_PLD2_Set; | |
TIMx->OCR1 = TIM_InitStruct->TIM_Pulse1; | |
TIMx->OCR2 = TIM_InitStruct->TIM_Pulse2; | |
/* Set the OC1 wave polarity */ | |
if(TIM_InitStruct->TIM_Polarity1 == TIM_Polarity1_Low) | |
{ | |
TIMx->OMR1 |= TIM_OC1P_Set; | |
} | |
else | |
{ | |
TIMx->OMR1 &= TIM_OC1P_Reset; | |
} | |
/* Set the OC2 wave polarity */ | |
if(TIM_InitStruct->TIM_Polarity2 == TIM_Polarity2_Low) | |
{ | |
TIMx->OMR1 |= TIM_OC2P_Set; | |
} | |
else | |
{ | |
TIMx->OMR1 &= TIM_OC2P_Reset; | |
} | |
} | |
} | |
} | |
/******************************************************************************* | |
* Function Name : ICAP_ModuleConfig | |
* Description : Input Capture Module configuration | |
* Input : - TIMx: where x can be 0, 1 or 2 to select the TIM peripheral | |
* - TIM_InitStruct: pointer to a TIM_InitTypeDef structure that | |
* contains the configuration information for the specified TIM | |
* peripheral. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
static void ICAP_ModuleConfig(TIM_TypeDef* TIMx, TIM_InitTypeDef* TIM_InitStruct) | |
{ | |
if(TIM_InitStruct->TIM_Mode == TIM_Mode_PWMI) | |
{ /* PWM input mode configuration */ | |
TIMx->SCR |= TIM_TS_IC1_Set|TIM_SMS_RESETCLK_Set|TIM_SME_Set; | |
/* Channel 1 and channel 2 input selection */ | |
if(TIM_InitStruct->TIM_PWMI_ICSelection == TIM_PWMI_ICSelection_TI1) | |
{ | |
TIMx->IMCR &= TIM_IC1S_Reset; | |
TIMx->IMCR |= TIM_IC2S_Set; | |
} | |
else | |
{ | |
TIMx->IMCR |= TIM_IC1S_Set; | |
TIMx->IMCR &= TIM_IC2S_Reset; | |
} | |
/* Channel polarity */ | |
if(TIM_InitStruct->TIM_PWMI_ICPolarity == TIM_PWMI_ICPolarity_Rising) | |
{ | |
TIMx->IMCR &= TIM_IC1P_Reset; | |
TIMx->IMCR |= TIM_IC2P_Set; | |
} | |
else | |
{ | |
TIMx->IMCR |= TIM_IC1P_Set; | |
TIMx->IMCR &= TIM_IC2P_Reset; | |
} | |
/* Input capture Enable */ | |
TIMx->IMCR |= TIM_IC1_Enable |TIM_IC2_Enable; | |
} | |
else | |
{ | |
if(TIM_InitStruct->TIM_Channel == TIM_Channel_1) | |
{ | |
/* Input Capture 1 mode configuration */ | |
TIMx->SCR &= TIM_TriggerSelection_Mask & TIM_SlaveModeSelection_Mask; | |
TIMx->SCR |= TIM_TS_IC1_Set|TIM_SMS_RESETCLK_Set|TIM_SME_Set; | |
/* Channel 1 input selection */ | |
if(TIM_InitStruct->TIM_IC1Selection == TIM_IC1Selection_TI1) | |
{ | |
TIMx->IMCR &= TIM_IC1S_Reset; | |
} | |
else | |
{ | |
TIMx->IMCR |= TIM_IC1S_Set; | |
} | |
/* Channel 1 polarity */ | |
if(TIM_InitStruct->TIM_IC1Polarity == TIM_IC1Polarity_Rising) | |
{ | |
TIMx->IMCR &= TIM_IC1P_Reset; | |
} | |
else | |
{ | |
TIMx->IMCR |= TIM_IC1P_Set; | |
} | |
/* Input capture Enable */ | |
TIMx->IMCR |= TIM_IC1_Enable; | |
} | |
else | |
{ | |
/* Input Capture 2 mode configuration */ | |
TIMx->SCR &= (TIM_TriggerSelection_Mask & TIM_SlaveModeSelection_Mask); | |
TIMx->SCR |= TIM_TS_IC2_Set|TIM_SMS_RESETCLK_Set|TIM_SME_Set; | |
/* Channel 2 input selection */ | |
if(TIM_InitStruct->TIM_IC2Selection == TIM_IC2Selection_TI2) | |
{ | |
TIMx->IMCR &= TIM_IC2S_Reset; | |
} | |
else | |
{ | |
TIMx->IMCR |= TIM_IC2S_Set; | |
} | |
/* Channel 2 polarity */ | |
if(TIM_InitStruct->TIM_IC2Polarity == TIM_IC2Polarity_Rising) | |
{ | |
TIMx->IMCR &= TIM_IC2P_Reset; | |
} | |
else | |
{ | |
TIMx->IMCR |= TIM_IC2P_Set; | |
} | |
/* Input capture Enable */ | |
TIMx->IMCR |= TIM_IC2_Enable; | |
} | |
} | |
} | |
/******************************************************************************* | |
* Function Name : Encoder_ModeConfig | |
* Description : Encoder Mode configuration | |
* Input : - TIMx: where x can be 0, 1 or 2 to select the TIM peripheral | |
* - TIM_InitStruct: pointer to a TIM_InitTypeDef structure that | |
* contains the configuration information for the specified TIM | |
* peripheral. | |
* Output : None | |
* Return : None | |
*******************************************************************************/ | |
static void Encoder_ModeConfig(TIM_TypeDef* TIMx, TIM_InitTypeDef* TIM_InitStruct) | |
{ | |
/* Set Encoder mode */ | |
TIMx->SCR &= TIM_Encoder_Mask; | |
if(TIM_InitStruct->TIM_Mode == TIM_Mode_Encoder1) | |
{ | |
TIMx->SCR |= TIM_Encoder1_Set; | |
} | |
else if (TIM_InitStruct->TIM_Mode == TIM_Mode_Encoder2) | |
{ | |
TIMx->SCR |= TIM_Encoder2_Set; | |
} | |
else | |
{ | |
TIMx->SCR |= TIM_Encoder3_Set; | |
} | |
/* Channel 1 input selection */ | |
if(TIM_InitStruct->TIM_IC1Selection == TIM_IC1Selection_TI2) | |
{ | |
TIMx->IMCR |= TIM_IC1S_Set; | |
} | |
else | |
{ | |
TIMx->IMCR &= TIM_IC1S_Reset; | |
} | |
/* Channel 2 input selection */ | |
if(TIM_InitStruct->TIM_IC2Selection == TIM_IC2Selection_TI1) | |
{ | |
TIMx->IMCR |= TIM_IC2S_Set; | |
} | |
else | |
{ | |
TIMx->IMCR &= TIM_IC2S_Reset; | |
} | |
/* Channel 1 polarity */ | |
if(TIM_InitStruct->TIM_IC1Polarity == TIM_IC1Polarity_Falling) | |
{ | |
TIMx->IMCR |= TIM_IC1P_Set; | |
} | |
else | |
{ | |
TIMx->IMCR &= TIM_IC1P_Reset; | |
} | |
/* Channel 2 polarity */ | |
if(TIM_InitStruct->TIM_IC2Polarity == TIM_IC2Polarity_Falling) | |
{ | |
TIMx->IMCR |= TIM_IC2P_Set; | |
} | |
else | |
{ | |
TIMx->IMCR &= TIM_IC2P_Reset; | |
} | |
} | |
/******************* (C) COPYRIGHT 2006 STMicroelectronics *****END OF FILE****/ |