stm32f10x_tim.c

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  /* Write to TIMx CR1 register */
  TIMx->CR1 = tmpcr1;
}

/*******************************************************************************
* Function Name  : TIM_SelectInputTrigger
* Description    : Selects the Input Trigger source
* Input          : - TIMx: where x can be  1, 2, 3, 4, 5 or 8 to select the TIM 
*                    peripheral.
*                  - TIM_InputTriggerSource: The Input Trigger source.
*                    This parameter can be one of the following values:
*                       - TIM_TS_ITR0: Internal Trigger 0
*                       - TIM_TS_ITR1: Internal Trigger 1
*                       - TIM_TS_ITR2: Internal Trigger 2
*                       - TIM_TS_ITR3: Internal Trigger 3
*                       - TIM_TS_TI1F_ED: TI1 Edge Detector
*                       - TIM_TS_TI1FP1: Filtered Timer Input 1
*                       - TIM_TS_TI2FP2: Filtered Timer Input 2
*                       - TIM_TS_ETRF: External Trigger input
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_SelectInputTrigger(TIM_TypeDef* TIMx, u16 TIM_InputTriggerSource)
{
  u16 tmpsmcr = 0;

  /* Check the parameters */
  assert_param(IS_TIM_123458_PERIPH(TIMx));
  assert_param(IS_TIM_TRIGGER_SELECTION(TIM_InputTriggerSource));

  /* Get the TIMx SMCR register value */
  tmpsmcr = TIMx->SMCR;

  /* Reset the TS Bits */
  tmpsmcr &= SMCR_TS_Mask;

  /* Set the Input Trigger source */
  tmpsmcr |= TIM_InputTriggerSource;

  /* Write to TIMx SMCR */
  TIMx->SMCR = tmpsmcr;
}

/*******************************************************************************
* Function Name  : TIM_EncoderInterfaceConfig
* Description    : Configures the TIMx Encoder Interface.
* Input          : - TIMx: where x can be  1, 2, 3, 4, 5 or 8 to select the TIM 
*                    peripheral.
*                  - TIM_EncoderMode: specifies the TIMx Encoder Mode.
*                    This parameter can be one of the following values:
*                       - TIM_EncoderMode_TI1: Counter counts on TI1FP1 edge
*                         depending on TI2FP2 level.
*                       - TIM_EncoderMode_TI2: Counter counts on TI2FP2 edge
*                         depending on TI1FP1 level.
*                       - TIM_EncoderMode_TI12: Counter counts on both TI1FP1 and
*                         TI2FP2 edges depending on the level of the other input.
*                  - TIM_IC1Polarity: specifies the IC1 Polarity
*                    This parmeter can be one of the following values:
*                        - TIM_ICPolarity_Falling: IC Falling edge.
*                        - TIM_ICPolarity_Rising: IC Rising edge.
*                  - TIM_IC2Polarity: specifies the IC2 Polarity
*                    This parmeter can be one of the following values:
*                        - TIM_ICPolarity_Falling: IC Falling edge.
*                        - TIM_ICPolarity_Rising: IC Rising edge.
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_EncoderInterfaceConfig(TIM_TypeDef* TIMx, u16 TIM_EncoderMode,
                                u16 TIM_IC1Polarity, u16 TIM_IC2Polarity)
{
  u16 tmpsmcr = 0;
  u16 tmpccmr1 = 0;
  u16 tmpccer = 0;
    
  /* Check the parameters */
  assert_param(IS_TIM_123458_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 &= SMCR_SMS_Mask;
  tmpsmcr |= TIM_EncoderMode;

  /* Select the Capture Compare 1 and the Capture Compare 2 as input */
  tmpccmr1 &= CCMR_CC13S_Mask & CCMR_CC24S_Mask;
  tmpccmr1 |= CCMR_TI13Direct_Set | CCMR_TI24Direct_Set;

  /* Set the TI1 and the TI2 Polarities */
  tmpccer &= CCER_CC1P_Reset & CCER_CC2P_Reset;
  tmpccer |= (TIM_IC1Polarity | (u16)(TIM_IC2Polarity << 4));

  /* Write to TIMx SMCR */
  TIMx->SMCR = tmpsmcr;

  /* Write to TIMx CCMR1 */
  TIMx->CCMR1 = tmpccmr1;

  /* Write to TIMx CCER */
  TIMx->CCER = tmpccer;
}

/*******************************************************************************
* Function Name  : TIM_ForcedOC1Config
* Description    : Forces the TIMx output 1 waveform to active or inactive level.
* Input          : - TIMx: where x can be  1, 2, 3, 4, 5 or 8 to select the TIM 
*                    peripheral.
*                  - 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 OC1REF
*                       - TIM_ForcedAction_InActive: Force inactive level on
*                         OC1REF.
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_ForcedOC1Config(TIM_TypeDef* TIMx, u16 TIM_ForcedAction)
{
  u16 tmpccmr1 = 0;

  /* Check the parameters */
  assert_param(IS_TIM_123458_PERIPH(TIMx));
  assert_param(IS_TIM_FORCED_ACTION(TIM_ForcedAction));

  tmpccmr1 = TIMx->CCMR1;

  /* Reset the OC1M Bits */
  tmpccmr1 &= CCMR_OC13M_Mask;

  /* Configure The Forced output Mode */
  tmpccmr1 |= TIM_ForcedAction;

  /* Write to TIMx CCMR1 register */
  TIMx->CCMR1 = tmpccmr1;
}

/*******************************************************************************
* Function Name  : TIM_ForcedOC2Config
* Description    : Forces the TIMx output 2 waveform to active or inactive level.
* Input          : - TIMx: where x can be  1, 2, 3, 4, 5 or 8 to select the TIM 
*                    peripheral.
*                  - 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 OC2REF
*                       - TIM_ForcedAction_InActive: Force inactive level on
*                         OC2REF.
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_ForcedOC2Config(TIM_TypeDef* TIMx, u16 TIM_ForcedAction)
{
  u16 tmpccmr1 = 0;

  /* Check the parameters */
  assert_param(IS_TIM_123458_PERIPH(TIMx));
  assert_param(IS_TIM_FORCED_ACTION(TIM_ForcedAction));

  tmpccmr1 = TIMx->CCMR1;

  /* Reset the OC2M Bits */
  tmpccmr1 &= CCMR_OC24M_Mask;

  /* Configure The Forced output Mode */
  tmpccmr1 |= (u16)(TIM_ForcedAction << 8);

  /* Write to TIMx CCMR1 register */
  TIMx->CCMR1 = tmpccmr1;
}

/*******************************************************************************
* Function Name  : TIM_ForcedOC3Config
* Description    : Forces the TIMx output 3 waveform to active or inactive level.
* Input          : - TIMx: where x can be  1, 2, 3, 4, 5 or 8 to select the TIM 
*                    peripheral.
*                  - 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 OC3REF
*                       - TIM_ForcedAction_InActive: Force inactive level on
*                         OC3REF.
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_ForcedOC3Config(TIM_TypeDef* TIMx, u16 TIM_ForcedAction)
{
  u16 tmpccmr2 = 0;

  /* Check the parameters */
  assert_param(IS_TIM_123458_PERIPH(TIMx));
  assert_param(IS_TIM_FORCED_ACTION(TIM_ForcedAction));

  tmpccmr2 = TIMx->CCMR2;

  /* Reset the OC1M Bits */
  tmpccmr2 &= CCMR_OC13M_Mask;

  /* Configure The Forced output Mode */
  tmpccmr2 |= TIM_ForcedAction;

  /* Write to TIMx CCMR2 register */
  TIMx->CCMR2 = tmpccmr2;
}

/*******************************************************************************
* Function Name  : TIM_ForcedOC4Config
* Description    : Forces the TIMx output 4 waveform to active or inactive level.
* Input          : - TIMx: where x can be  1, 2, 3, 4, 5 or 8 to select the TIM 
*                    peripheral.
*                  - 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 OC4REF
*                       - TIM_ForcedAction_InActive: Force inactive level on
*                         OC4REF.
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_ForcedOC4Config(TIM_TypeDef* TIMx, u16 TIM_ForcedAction)
{
  u16 tmpccmr2 = 0;

  /* Check the parameters */
  assert_param(IS_TIM_123458_PERIPH(TIMx));
  assert_param(IS_TIM_FORCED_ACTION(TIM_ForcedAction));
  tmpccmr2 = TIMx->CCMR2;

  /* Reset the OC2M Bits */
  tmpccmr2 &= CCMR_OC24M_Mask;

  /* Configure The Forced output Mode */
  tmpccmr2 |= (u16)(TIM_ForcedAction << 8);

  /* Write to TIMx CCMR2 register */
  TIMx->CCMR2 = tmpccmr2;
}

/*******************************************************************************
* Function Name  : TIM_ARRPreloadConfig
* Description    : Enables or disables TIMx peripheral Preload register on ARR.
* Input          : - TIMx: where x can be  1, 2, 3, 4, 5 or 8 to select the TIM 
*                    peripheral.
*                  - NewState: new state of the TIMx peripheral Preload register
*                    This parameter can be: ENABLE or DISABLE.
* Output         : None
* Return         : 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 |= CR1_ARPE_Set;
  }
  else
  {
    /* Reset the ARR Preload Bit */
    TIMx->CR1 &= CR1_ARPE_Reset;
  }
}

/*******************************************************************************
* Function Name  : TIM_SelectCOM
* Description    : Selects the TIM peripheral Commutation event.
* Input          :- TIMx: where x can be  1 or 8 to select the TIMx peripheral
*                 - NewState: new state of the Commutation event.
*                    This parameter can be: ENABLE or DISABLE.
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_SelectCOM(TIM_TypeDef* TIMx, FunctionalState NewState)
{
  /* Check the parameters */
  assert_param(IS_TIM_18_PERIPH(TIMx));
  assert_param(IS_FUNCTIONAL_STATE(NewState));

  if (NewState != DISABLE)
  {
    /* Set the COM Bit */
    TIMx->CR2 |= CR2_CCUS_Set;
  }
  else
  {
    /* Reset the COM Bit */
    TIMx->CR2 &= CR2_CCUS_Reset;
  }
}

/*******************************************************************************
* Function Name  : TIM_SelectCCDMA
* Description    : Selects the TIMx peripheral Capture Compare DMA source.
* Input          : - TIMx: where x can be  1, 2, 3, 4, 5 or 8 to select the TIM 
*                    peripheral.
*                  - NewState: new state of the Capture Compare DMA source
*                    This parameter can be: ENABLE or DISABLE.
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_SelectCCDMA(TIM_TypeDef* TIMx, FunctionalState NewState)
{
  /* Check the parameters */
  assert_pa