stm32f10x_tim.c

STM32下做的usb转RS232程序

  TIMx->CCMR1 = (u16)tmpccmr1;
}

/*******************************************************************************
* Function Name  : TIM_ClearOC3Ref
* Description    : Clears or safeguards the OCREF3 signal on an external event
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - TIM_OCClear: new state of the Output Compare Clear Enable Bit.
*                    This parameter can be one of the following values:
*                       - TIM_OCClear_Enable
*                       - TIM_OCClear_Disable
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_ClearOC3Ref(TIM_TypeDef* TIMx, u16 TIM_OCClear)
{
  u32 tmpccmr2 = 0;

  /* Check the parameters */
  assert_param(IS_TIM_OCCLEAR_STATE(TIM_OCClear));

  tmpccmr2 = TIMx->CCMR2;

  /* Reset the OCFE Bit */
  tmpccmr2 &= CCMR_OC13CE_Mask;

  /* Enable or Disable the Output Compare Clear Bit */
  tmpccmr2 |= (u16)(TIM_OCClear);

  TIMx->CCMR2 = (u16)tmpccmr2;
}

/*******************************************************************************
* Function Name  : TIM_ClearOC4Ref
* Description    : Clears or safeguards the OCREF4 signal on an external event
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - TIM_OCClear: new state of the Output Compare Clear Enable Bit.
*                    This parameter can be one of the following values:
*                       - TIM_OCClear_Enable
*                       - TIM_OCClear_Disable
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_ClearOC4Ref(TIM_TypeDef* TIMx, u16 TIM_OCClear)
{
  u32 tmpccmr2 = 0;

  /* Check the parameters */
  assert_param(IS_TIM_OCCLEAR_STATE(TIM_OCClear));

  tmpccmr2 = TIMx->CCMR2;

  /* Reset the OCFE Bit */
  tmpccmr2 &= CCMR_OC24CE_Mask;

  /* Enable or Disable the Output Compare Clear Bit */
  tmpccmr2 |= (u16)(TIM_OCClear << 8);

  TIMx->CCMR2 = (u16)tmpccmr2;
}

/*******************************************************************************
* Function Name  : TIM_UpdateDisableConfig
* Description    : Enables or Disables the TIMx Update event.
* Input          : - TIMx: where x can be 2, 3 or 4 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_UpdateDisableConfig(TIM_TypeDef* TIMx, FunctionalState Newstate)
{
  u32 tmpcr1 = 0;

  /* Check the parameters */
  assert_param(IS_FUNCTIONAL_STATE(Newstate));

  tmpcr1 = TIMx->CR1;

  if (Newstate != DISABLE)
  {
    /* Set the Update Disable Bit */
    tmpcr1 |= CR1_UDIS_Set;
  }
  else
  {
    /* Reset the Update Disable Bit */
    tmpcr1 &= CR1_UDIS_Reset;
  }

  TIMx->CR1 = (u16)tmpcr1;
}

/*******************************************************************************
* Function Name  : TIM_EncoderInterfaceConfig
* Description    : Configures the TIMx Encoder Interface.
* Input          : - TIMx: where x can be 2, 3 or 4 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
*                        - TIM_ICPolarity_Rising
*                  - TIM_IC2Polarity: specifies the IC2 Polarity
*                    This parmeter can be one of the following values:
*                       - TIM_ICPolarity_Falling
*                       - TIM_ICPolarity_Rising
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_EncoderInterfaceConfig(TIM_TypeDef* TIMx, u16 TIM_EncoderMode,
                                u16 TIM_IC1Polarity, u16 TIM_IC2Polarity)
{
  u32 tmpsmcr = 0;
  u32 tmpccmr1 = 0;
  u32 tmpccer = 0;
    
  /* Check the parameters */
  assert_param(IS_TIM_ENCODER_MODE(TIM_EncoderMode));
  assert_param(IS_TIM_IC_POLARITY(TIM_IC1Polarity));
  assert_param(IS_TIM_IC_POLARITY(TIM_IC2Polarity));

  tmpsmcr = TIMx->SMCR;
  tmpccmr1 = TIMx->CCMR1;
  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_Mask & CCER_CC2P_Mask;
  tmpccer |= (TIM_IC1Polarity | (u16)((u16)TIM_IC2Polarity << 4));

  TIMx->SMCR = (u16)tmpsmcr;

  TIMx->CCMR1 = (u16)tmpccmr1;

  TIMx->CCER = (u16)tmpccer;
}

/*******************************************************************************
* Function Name  : TIM_GenerateEvent
* Description    : Configures the TIMx event to be generate by software.
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - TIM_EventSource: specifies the event source.
*                    This parameter can be one or more of the following values:
*                       - TIM_EventSource_Update: Timer update Event source
*                       - TIM_EventSource_CC1: Timer Capture Compare 1 Event source
*                       - TIM_EventSource_CC2: Timer Capture Compare 2 Event source
*                       - TIM_EventSource_CC3: Timer Capture Compare 3 Event source
*                       - TIM_EventSource_CC4: Timer Capture Compare 4 Event source
*                       - TIM_EventSource_Trigger: Timer Trigger Event source
* Output         : None
* Return         : None
*******************************************************************************/
void TIM_GenerateEvent(TIM_TypeDef* TIMx, u16 TIM_EventSource)
{
  /* Check the parameters */
  assert_param(IS_TIM_EVENT_SOURCE(TIM_EventSource));

  /* Set the event sources */
  TIMx->EGR |= TIM_EventSource;
}

/*******************************************************************************
* Function Name  : TIM_OC1PolarityConfig
* Description    : Configures the TIMx channel 1 polarity.
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - TIM_OCPolarity: specifies the OC1 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_OC1PolarityConfig(TIM_TypeDef* TIMx, u16 TIM_OCPolarity)
{
  u32 tmpccer = 0;

  /* Check the parameters */
  assert_param(IS_TIM_OC_POLARITY(TIM_OCPolarity));

  tmpccer = TIMx->CCER;

  /* Set or Reset the CC1P Bit */
  tmpccer &= CCER_CC1P_Mask;
  tmpccer |= TIM_OCPolarity;

  TIMx->CCER = (u16)tmpccer;
}

/*******************************************************************************
* Function Name  : TIM_OC2PolarityConfig
* Description    : Configures the TIMx channel 2 polarity.
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - TIM_OCPolarity: specifies the OC2 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_OC2PolarityConfig(TIM_TypeDef* TIMx, u16 TIM_OCPolarity)
{
  u32 tmpccer = 0;

  /* Check the parameters */
  assert_param(IS_TIM_OC_POLARITY(TIM_OCPolarity));

  tmpccer = TIMx->CCER;

  /* Set or Reset the CC2P Bit */
  tmpccer &= CCER_CC2P_Mask;
  tmpccer |= (u16)((u16)TIM_OCPolarity << 4);

  TIMx->CCER = (u16)tmpccer;
}

/*******************************************************************************
* Function Name  : TIM_OC3PolarityConfig
* Description    : Configures the TIMx channel 3 polarity.
* Input          : - TIMx: where x can be 2, 3 or 4 to select the TIM peripheral.
*                  - TIM_OCPolarity: specifies the OC3 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_OC3PolarityConfig(TIM_TypeDef* TIMx, u16 TIM_OCPolarity)
{
  u32 tmpccer = 0;

  /* Check the parameters */
  assert_param(IS_TIM_OC_POLARITY(TIM_OCPolarity));

  tmpccer = TIMx->CCER;

  /* Set or Reset the CC3P Bit */
  tmpccer &= CCER_CC3P_Mask;
  tmpccer |= (u16)((u16)TIM_OCPolarity << 8);

  TIMx->CCER = (u16)tmpccer;
}

/*******************************************************************************
* Function Name  : TIM_OC4PolarityConfig
* Description    : Configures the TIMx 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;

  /* Check the parameters */
  assert_param(IS_TIM_OC_POLARITY(TIM_OCPolarity));

  tmpccer = TIMx->CCER;

  /* Set or Reset the CC4P Bit */
  tmpccer &= CCER_CC4P_Mask;
  tmpccer |= (u16)((u16)TIM_OCPolarity << 12);

  TIMx->CCER = (u16)tmpccer;
}

/*******************************************************************************
* Function Name  : TIM_UpdateRequestConfig
* Description    : Configures the TIMx 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, u16 TIM_UpdateSource)
{
  u32 tmpcr1 = 0;

  /* Check the parameters */
  assert_param(IS_TIM_UPDATE_SOURCE(TIM_UpdateSource));

  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 = (u16)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
* Re