u32 tmpccer = 0;

  tmpccer = TIMx->CCER;

  /* Set or Reset the CC3P Bit */
  tmpccer &= CCER_CC3P_Mask;
  tmpccer |= TIM_OCPolarity << 8;

  TIMx->CCER = tmpccer;
}

/*******************************************************************************
* Function Name  : TIM_OC4PolarityConfig
* Description    : Configures the channel 4 polarity.
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - TIM_OCPolarity: specifies the OC4 Polarity
*                    This parmeter can be one of the following values:
*                       - TIM_OCPolarity_High: Output Compare active high
*                       - TIM_OCPolarity_Low: Output Compare active low
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_OC4PolarityConfig(TIM_TypeDef* TIMx, u16 TIM_OCPolarity)
{
  u32 tmpccer = 0;

  tmpccer = TIMx->CCER;

  /* Set or Reset the CC4P Bit */
  tmpccer &= CCER_CC4P_Mask;
  tmpccer |= TIM_OCPolarity << 12;

  TIMx->CCER = tmpccer;
}

/*******************************************************************************
* Function Name  : TIM_UpdateRequestConfig
* Description    : Configures the Update Request Interrupt source.
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - TIM_UpdateSource: specifies the Update source.
*                    This parameter can be one of the following values:
*                       - TIM_UpdateSource_Regular
*                       - TIM_UpdateSource_Global
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_UpdateRequestConfig(TIM_TypeDef* TIMx, u8 TIM_UpdateSource)
{
  u32 tmpcr1 = 0;

  tmpcr1 = TIMx->CR1;

  if (TIM_UpdateSource == TIM_UpdateSource_Regular)
  {
    /* Set the URS Bit */
    tmpcr1 |= CR1_URS_Set;
  }
  else
  {
    /* Reset the URS Bit */
    tmpcr1 &= CR1_URS_Reset;
  }
  TIMx->CR1 = tmpcr1;
}

/*******************************************************************************
* Function Name  : TIM_SelectHallSensor
* Description    : Enables or disables the TIMx抯 Hall sensor interface.
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - Newstate: new state of the TIMx Hall sensor interface.
*                    This parameter can be: ENABLE or DISABLE.
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_SelectHallSensor(TIM_TypeDef* TIMx, FunctionalState Newstate)
{
  if (Newstate != DISABLE)
  {
    /* Set the TI1S Bit */
    TIMx->CR2 |= CR2_TI1S_Set;
  }
  else
  {
    /* Reset the TI1S Bit */
    TIMx->CR2 &= CR2_TI1S_Reset;
  }
}

/*******************************************************************************
* Function Name  : TIM_SelectOnePulseMode
* Description    : Enables or disables the TIMx抯 One Pulse Mode.
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - TIM_OPMode: specifies the OPM Mode to be used.
*                    This parameter can be one of the following values:
*                       - TIM_OPMode_Single
*                       - TIM_OPMode_Repetitive
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_SelectOnePulseMode(TIM_TypeDef* TIMx, u16 TIM_OPMode)
{
  u32 tmpcr1 = 0;

  tmpcr1 = TIMx->CR1;

  /* Reset the OPM Bit */
  tmpcr1 &= CR1_OPM_Mask;

  /* Configure the OPM Mode */
  tmpcr1 |= TIM_OPMode;

  TIMx->CR1 = tmpcr1;
}

/*******************************************************************************
* Function Name  : TIM_SelectOutputTrigger
* Description    : Selects the TIM Trigger Output Mode.
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - TIM_TRGOSource: specifies the Trigger Output source.
*                    This paramter can be one of the following values:
*                       - TIM_TRGOSource_Reset
*                       - TIM_TRGOSource_Enable
*                       - TIM_TRGOSource_Update
*                       - TIM_TRGOSource_OC1
*                       - TIM_TRGOSource_OC1Ref
*                       - TIM_TRGOSource_OC2Ref
*                       - TIM_TRGOSource_OC3Ref
*                       - TIM_TRGOSource_OC4Ref
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_SelectOutputTrigger(TIM_TypeDef* TIMx, u16 TIM_TRGOSource)
{
  u32 tmpcr2 = 0;

  tmpcr2 = TIMx->CR2;
  /* Reset the MMS Bits */
  tmpcr2 &= CR2_MMS_Mask;

  /* Select the TRGO source */
  tmpcr2 |=  TIM_TRGOSource;

  TIMx->CR2 = tmpcr2;
}

/*******************************************************************************
* Function Name  : TIM_SelectSlaveMode
* Description    : Selects the TIM Slave Mode.
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - TIM_SlaveMode: specifies the Timer Slave Mode.
*                    This paramter can be one of the following values:
*                       - TIM_SlaveMode_Reset
*                       - TIM_SlaveMode_Gated
*                       - TIM_SlaveMode_Trigger
*                       - TIM_SlaveMode_External1
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_SelectSlaveMode(TIM_TypeDef* TIMx, u16 TIM_SlaveMode)
{
  u32 tmpsmcr = 0;

  tmpsmcr = TIMx->SMCR;

  /* Reset the SMS Bits */
  tmpsmcr &= SMCR_SMS_Mask;

  /* Select the Slave Mode */
  tmpsmcr |= TIM_SlaveMode;

  TIMx->SMCR = tmpsmcr;
}

/*******************************************************************************
* Function Name  : TIM_SelectMasterSlaveMode
* Description    : Sets or Resets the TIM Master/Slave Mode.
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - TIM_MasterSlaveMode: specifies the Timer Master Slave Mode.
*                    This paramter can be one of the following values:
*                       - TIM_MasterSlaveMode_Enable: synchronization between the
*                         current timer and its slaves (through TRGO).
*                       - TIM_MasterSlaveMode_Disable: No action
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_SelectMasterSlaveMode(TIM_TypeDef* TIMx, u16 TIM_MasterSlaveMode)
{
  u32 tmpsmcr = 0;

  tmpsmcr = TIMx->SMCR;

  /* Set or Reset the MSM Bit */
  tmpsmcr &= SMCR_MSM_Mask;
  tmpsmcr |= TIM_MasterSlaveMode;

  TIMx->SMCR = tmpsmcr;
}

/*******************************************************************************
* Function Name  : TIM_SetAutoreload
* Description    : Sets the TIM Autoreload Register value
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - Autoreload: specifies the Autoreload register new value.
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_SetAutoreload(TIM_TypeDef* TIMx, u16 Autoreload)
{
  /* Set the Autoreload Register value */
  TIMx->ARR = Autoreload;
}

/*******************************************************************************
* Function Name  : TIM_SetCompare1
* Description    : Sets the TIM Capture Compare1 Register value
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - Compare1: specifies the Capture Compare1 register new value.
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_SetCompare1(TIM_TypeDef* TIMx, u16 Compare1)
{
  /* Set the Capture Compare1 Register value */
  TIMx->CCR1 = Compare1;
}

/*******************************************************************************
* Function Name  : TIM_SetCompare2
* Description    : Sets the TIM Capture Compare2 Register value
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - Compare2: specifies the Capture Compare2 register new value.
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_SetCompare2(TIM_TypeDef* TIMx, u16 Compare2)
{
  /* Set the Capture Compare2 Register value */
  TIMx->CCR2 = Compare2;
}

/*******************************************************************************
* Function Name  : TIM_SetCompare3
* Description    : Sets the TIM Capture Compare3 Register value
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - Compare3: specifies the Capture Compare3 register new value.
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_SetCompare3(TIM_TypeDef* TIMx, u16 Compare3)
{
  /* Set the Capture Compare3 Register value */
  TIMx->CCR3 = Compare3;
}

/*******************************************************************************
* Function Name  : TIM_SetCompare4
* Description    : Sets the TIM Capture Compare4 Register value
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - Compare4: specifies the Capture Compare4 register new value.
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_SetCompare4(TIM_TypeDef* TIMx, u16 Compare4)
{
  /* Set the Capture Compare4 Register value */
  TIMx->CCR4 = Compare4;
}

/*******************************************************************************
* Function Name  : TIM_SetIC1Prescaler
* Description    : Sets the Input Capture 1 prescaler.
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - TIM_IC1Prescaler: specifies the Input Capture1 prescaler
*                    new value.
*                    This parameter can be one of the following values:
*                       - TIM_ICPSC_DIV1: no prescaler
*                       - TIM_ICPSC_DIV2: capture is done once every 2 events
*                       - TIM_ICPSC_DIV4: capture is done once every 4 events
*                       - TIM_ICPSC_DIV8: capture is done once every 8 events
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_SetIC1Prescaler(TIM_TypeDef* TIMx, u8 TIM_IC1Prescaler)
{
  u32 tmpccmr1 = 0;

  tmpccmr1 = TIMx->CCMR1;

  /* Reset the IC1PSC Bits */
  tmpccmr1 &= CCMR_IC13PSC_Mask;

  /* Set the IC1PSC value */
  tmpccmr1 |= TIM_IC1Prescaler;

  TIMx->CCMR1 = tmpccmr1;
}

/*******************************************************************************
* Function Name  : TIM_SetIC2Prescaler
* Description    : Sets the Input Capture 2 prescaler.
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - TIM_IC2Prescaler: specifies the Input Capture2 prescaler
*                    new value.
*                    This parameter can be one of the following values:
*                       - TIM_ICPSC_DIV1: no prescaler
*                       - TIM_ICPSC_DIV2: capture is done once every 2 events
*                       - TIM_ICPSC_DIV4: capture is done once every 4 events
*                       - TIM_ICPSC_DIV8: capture is done once every 8 events
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_SetIC2Prescaler(TIM_TypeDef* TIMx, u8 TIM_IC2Prescaler)
{
  u32 tmpccmr1 = 0;

  tmpccmr1 = TIMx->CCMR1;

  /* Reset the IC2PSC Bits */
  tmpccmr1 &= CCMR_IC24PSC_Mask;

  /* Set the IC2PSC value */
  tmpccmr1 |= T