stm32f10x_adc.c

诺基亚5110 LCD资料

void ADC_ExternalTrigConvCmd(ADC_TypeDef* ADCx, FunctionalState NewState)
{
  /* Check the parameters */
  assert_param(IS_ADC_ALL_PERIPH(ADCx));
  assert_param(IS_FUNCTIONAL_STATE(NewState));

  if (NewState != DISABLE)
  {
    /* Enable the selected ADC conversion on external event */
    ADCx->CR2 |= CR2_EXTTRIG_Set;
  }
  else
  {
    /* Disable the selected ADC conversion on external event */
    ADCx->CR2 &= CR2_EXTTRIG_Reset;
  }
}

/*******************************************************************************
* Function Name  : ADC_GetConversionValue
* Description    : Returns the last ADCx conversion result data for regular channel.
* Input          : - ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
* Output         : None
* Return         : The Data conversion value.
*******************************************************************************/
u16 ADC_GetConversionValue(ADC_TypeDef* ADCx)
{
  /* Check the parameters */
  assert_param(IS_ADC_ALL_PERIPH(ADCx));

  /* Return the selected ADC conversion value */
  return (u16) ADCx->DR;
}

/*******************************************************************************
* Function Name  : ADC_GetDualModeConversionValue
* Description    : Returns the last ADC1 and ADC2 conversion result data in dual mode.
* Output         : None
* Return         : The Data conversion value.
*******************************************************************************/
u32 ADC_GetDualModeConversionValue(void)
{
  /* Return the dual mode conversion value */
  return (*(vu32 *) DR_ADDRESS);
}

/*******************************************************************************
* Function Name  : ADC_AutoInjectedConvCmd
* Description    : Enables or disables the selected ADC automatic injected group
*                  conversion after regular one.
* Input          : - ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
*                  - NewState: new state of the selected ADC auto injected
*                    conversion
*                    This parameter can be: ENABLE or DISABLE.
* Output         : None
* Return         : None
*******************************************************************************/
void ADC_AutoInjectedConvCmd(ADC_TypeDef* ADCx, FunctionalState NewState)
{
  /* Check the parameters */
  assert_param(IS_ADC_ALL_PERIPH(ADCx));
  assert_param(IS_FUNCTIONAL_STATE(NewState));

  if (NewState != DISABLE)
  {
    /* Enable the selected ADC automatic injected group conversion */
    ADCx->CR1 |= CR1_JAUTO_Set;
  }
  else
  {
    /* Disable the selected ADC automatic injected group conversion */
    ADCx->CR1 &= CR1_JAUTO_Reset;
  }
}

/*******************************************************************************
* Function Name  : ADC_InjectedDiscModeCmd
* Description    : Enables or disables the discontinuous mode for injected group
*                  channel for the specified ADC
* Input          : - ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
*                  - NewState: new state of the selected ADC discontinuous mode
*                    on injected group channel.
*                    This parameter can be: ENABLE or DISABLE.
* Output         : None
* Return         : None
*******************************************************************************/
void ADC_InjectedDiscModeCmd(ADC_TypeDef* ADCx, FunctionalState NewState)
{
  /* Check the parameters */
  assert_param(IS_ADC_ALL_PERIPH(ADCx));
  assert_param(IS_FUNCTIONAL_STATE(NewState));

  if (NewState != DISABLE)
  {
    /* Enable the selected ADC injected discontinuous mode */
    ADCx->CR1 |= CR1_JDISCEN_Set;
  }
  else
  {
    /* Disable the selected ADC injected discontinuous mode */
    ADCx->CR1 &= CR1_JDISCEN_Reset;
  }
}

/*******************************************************************************
* Function Name  : ADC_ExternalTrigInjectedConvConfig
* Description    : Configures the ADCx external trigger for injected channels conversion.
* Input          : - ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
*                  - ADC_ExternalTrigInjecConv: specifies the ADC trigger to
*                    start injected conversion. 
*                    This parameter can be one of the following values:
*                       - ADC_ExternalTrigInjecConv_T1_TRGO: Timer1 TRGO event 
*                         selected (for ADC1, ADC2 and ADC3)
*                       - ADC_ExternalTrigInjecConv_T1_CC4: Timer1 capture
*                         compare4 selected (for ADC1, ADC2 and ADC3)
*                       - ADC_ExternalTrigInjecConv_T2_TRGO: Timer2 TRGO event
*                         selected (for ADC1 and ADC2)
*                       - ADC_External TrigInjecConv_T2_CC1: Timer2 capture
*                         compare1 selected (for ADC1 and ADC2)
*                       - ADC_ExternalTrigInjecConv_T3_CC4: Timer3 capture
*                         compare4 selected (for ADC1 and ADC2)
*                       - ADC_ExternalTrigInjecConv_T4_TRGO: Timer4 TRGO event
*                         selected (for ADC1 and ADC2)
*                       - ADC_ExternalTrigInjecConv_Ext_IT15_TIM8_CC4: External
*                         interrupt line 15 or Timer8 capture compare4 event selected
*                         (for ADC1 and ADC2)                       
*                       - ADC_External TrigInjecConv_T4_CC3: Timer4 capture
*                         compare3 selected (for ADC3 only)
*                       - ADC_External TrigInjecConv_T8_CC2: Timer8 capture
*                         compare2 selected (for ADC3 only)                         
*                       - ADC_External TrigInjecConv_T8_CC4: Timer8 capture
*                         compare4 selected (for ADC3 only)
*                       - ADC_ExternalTrigInjecConv_T5_TRGO: Timer5 TRGO event
*                         selected (for ADC3 only)                         
*                       - ADC_External TrigInjecConv_T5_CC4: Timer5 capture
*                         compare4 selected (for ADC3 only)                        
*                       - ADC_ExternalTrigInjecConv_None: Injected conversion
*                         started by software and not by external trigger (for 
*                         ADC1, ADC2 and ADC3)
* Output         : None
* Return         : None
*******************************************************************************/
void ADC_ExternalTrigInjectedConvConfig(ADC_TypeDef* ADCx, u32 ADC_ExternalTrigInjecConv)
{
  u32 tmpreg = 0;

  /* Check the parameters */
  assert_param(IS_ADC_ALL_PERIPH(ADCx));
  assert_param(IS_ADC_EXT_INJEC_TRIG(ADC_ExternalTrigInjecConv));

  /* Get the old register value */
  tmpreg = ADCx->CR2;
  /* Clear the old external event selection for injected group */
  tmpreg &= CR2_JEXTSEL_Reset;
  /* Set the external event selection for injected group */
  tmpreg |= ADC_ExternalTrigInjecConv;
  /* Store the new register value */
  ADCx->CR2 = tmpreg;
}

/*******************************************************************************
* Function Name  : ADC_ExternalTrigInjectedConvCmd
* Description    : Enables or disables the ADCx injected channels conversion
*                  through external trigger
* Input          : - ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
*                  - NewState: new state of the selected ADC external trigger
*                    start of injected conversion.
*                    This parameter can be: ENABLE or DISABLE.
* Output         : None
* Return         : None
*******************************************************************************/
void ADC_ExternalTrigInjectedConvCmd(ADC_TypeDef* ADCx, FunctionalState NewState)
{
  /* Check the parameters */
  assert_param(IS_ADC_ALL_PERIPH(ADCx));
  assert_param(IS_FUNCTIONAL_STATE(NewState));

  if (NewState != DISABLE)
  {
    /* Enable the selected ADC external event selection for injected group */
    ADCx->CR2 |= CR2_JEXTTRIG_Set;
  }
  else
  {
    /* Disable the selected ADC external event selection for injected group */
    ADCx->CR2 &= CR2_JEXTTRIG_Reset;
  }
}

/*******************************************************************************
* Function Name  : ADC_SoftwareStartInjectedConvCmd
* Description    : Enables or disables the selected ADC start of the injected 
*                  channels conversion.
* Input          : - ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
*                  - NewState: new state of the selected ADC software start
*                    injected conversion.
*                    This parameter can be: ENABLE or DISABLE.
* Output         : None
* Return         : None
*******************************************************************************/
void ADC_SoftwareStartInjectedConvCmd(ADC_TypeDef* ADCx, FunctionalState NewState)
{
  /* Check the parameters */
  assert_param(IS_ADC_ALL_PERIPH(ADCx));
  assert_param(IS_FUNCTIONAL_STATE(NewState));

  if (NewState != DISABLE)
  {
    /* Enable the selected ADC conversion for injected group on external event and start the selected
       ADC injected conversion */
    ADCx->CR2 |= CR2_JEXTTRIG_JSWSTART_Set;
  }
  else
  {
    /* Disable the selected ADC conversion on external event for injected group and stop the selected
       ADC injected conversion */
    ADCx->CR2 &= CR2_JEXTTRIG_JSWSTART_Reset;
  }
}

/*******************************************************************************
* Function Name  : ADC_GetSoftwareStartInjectedConvCmdStatus
* Description    : Gets the selected ADC Software start injected conversion Status.
* Input          : - ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
* Output         : None
* Return         : The new state of ADC software start injected conversion (SET or RESET).
*******************************************************************************/
FlagStatus ADC_GetSoftwareStartInjectedConvCmdStatus(ADC_TypeDef* ADCx)
{
  FlagStatus bitstatus = RESET;

  /* Check the parameters */
  assert_param(IS_ADC_ALL_PERIPH(ADCx));

  /* Check the status of JSWSTART bit */
  if ((ADCx->CR2 & CR2_JSWSTART_Set) != (u32)RESET)
  {
    /* JSWSTART bit is set */
    bitstatus = SET;
  }
  else
  {
    /* JSWSTART bit is reset */
    bitstatus = RESET;
  }

  /* Return the JSWSTART bit status */
  return  bitstatus;
}

/*******************************************************************************
* Function Name  : ADC_InjectedChannelConfig
* Description    : Configures for the selected ADC injected channel its corresponding
*                  rank in the sequencer and its sample time.
* Input          : - ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
*                  - ADC_Channel: the ADC channel to configure. 
*                    This parameter can be one of the following values:
*                       - ADC_Channel_0: ADC Channel0 selected
*                       - ADC_Channel_1: ADC Channel1 selected
*                       - ADC_Channel_2: ADC Channel2 selected
*                       - ADC_Channel_3: ADC Channel3 selected
*                       - ADC_Channel_4: ADC Channel4 selected
*                       - ADC_Channel_5: ADC Channel5 selected
*                       - ADC_Channel_6: ADC Channel6 selected
*                       - ADC_Channel_7: ADC Channel7 selected
*                       - ADC_Channel_8: ADC Channel8 selected
*                       - ADC_Channel_9: ADC Channel9 selected
*                       - ADC_Channel_10: ADC Channel10 selected
*                       - ADC_Channel_11: ADC Channel11 selected
*                       - ADC_Channel_12: ADC Channel12 selected
*                       - ADC_Channel_13: ADC Channel13 selected
*                       - ADC_Channel_14: ADC Channel14 selected
*                       - ADC_Channel_15: ADC Channel15 selected
*                       - ADC_Channel_16: ADC Channel16 selected
*                       - ADC_Channel_17: ADC Channel17 selected
*                  - Rank: The rank in the injected group sequencer. This parameter
*                    must be between 1 to 4.
*                  - ADC_SampleTime: The sample time value to be set for the
*                    selected channel. 
*                    This parameter can be one of the following values:
*                       - ADC_SampleTime_1Cycles5: Sample time equal to 1.5 cycles
*                       - ADC_SampleTime_7Cycles5: Sample time equal to 7.5 cycles
*                       - ADC_SampleTime_13Cycles5: Sample time equal to 13.5 cycles
*                       - ADC_SampleTime_28Cycles5: Sample time equal to 28.5 cycles	
*                       - ADC_SampleTime_41Cycles5: Sample time equal to 41.5 cycles	
*                       - ADC_SampleTime_55Cycles5: Sample time equal to 55.5 cycles	
*                       - ADC_SampleTime_71Cycles5: Sample time equal to 71.5 cycles	
*                       - ADC_SampleTime_239Cycles5: Sample time equal to 239.5 cycles	
* Output         : None
* Return         : None
*******************************************************************************/
void ADC_InjectedChannelConfig(ADC_TypeDef* ADCx, u8 ADC_Channel, u8 Rank, u8 ADC_SampleTime)
{
  u32 tmpreg1 = 0, tmpreg2 = 0, tmpreg3 = 0;

  /* Check the parameters */
  assert_param(IS_ADC_ALL_PERIPH(ADCx));
  assert_param(IS_ADC_CHANNEL(ADC_Channel));
  assert_param(IS_ADC_INJECTED_RANK(Rank));
  assert_param(IS_ADC_SAMPLE_TIME(ADC_SampleTime));

  /* if ADC_Channel_10 ... ADC_Channel_17 is selected */
  if (ADC_Channel > ADC_Channel_9)
  {
    /* Get the old register value */
    tmpreg1 = ADCx->SMPR1;
    /* Calculate the mask to clear */
    tmpreg2 = SMPR1_SMP_Set << (3*(ADC_Channel - 10));
    /* Clear the old discontinuous mode channel count */
    tmpreg1 &= ~tmpreg2;
    /* Calculate the mask to set */
    tmpreg2 = (u32)ADC_SampleTime << (3*(ADC_Channel - 10));
    /* Set the discontinuous mode channel count */
    tmpreg1 |= tmpreg2;
    /* Store the new register value */
    ADCx->SMPR1 = tmpreg1;
  }
  else /* ADC_Channel include in ADC_Channel_[0..9] */
  {
    /* Get the old register value */
    tmpreg1 = ADCx->SMPR2;
    /* Calculate the mask to clear */
    tmpreg2 = SMPR2_SMP_Set << (3 * ADC_Channel);
    /* Clear the old discontinuous mode channel count */
    tmpreg1 &= ~tmpreg2;
    /* Calculate the mask to set */
    tmpreg2 = (u32)ADC_SampleTime << (3 * ADC_Channel);
    /* Set the discontinuous mode channel count */
    tmpreg1 |= tmpreg2;
    /* Store the new register value */
    ADCx->SMPR2 = tmpreg1;
  }

  /* Rank configuration */
  /* Get the old register value */
  tmpreg1 = ADCx->JSQR;
  /* Get JL value: Number = JL+1 */
  tmpreg3 =  (tmpreg1 & JSQR_JL_Set)>> 20;
  /* Calculate the mask to clear: ((Rank-1)+(4-JL-1)) */
  tmpreg2 = JSQR_JSQ_Set << (5 * (u8)((Rank + 3) - (tmpreg3 + 1)));
  /* Clear the old JSQx bits for the selected rank */
  tmpreg1 &= ~tmpreg2;
  /* Calculate the mask to set: ((Rank-1)+(4-JL-1)) */
  tmpreg2 = (u32)ADC_Channel << (5 * (u8)((Rank + 3) - (tmpreg3 + 1)));
  /* Set the JSQx bits for the selected rank */
  tmpreg1 |= tmpreg2;
  /* Store the new register value */
  ADCx->JSQR = tmpreg1;
}

/*******************************************************************************