stm32f10x_adc.c

LWIP在STM32裸机上的移植

    /* Set the SQx bits for the selected rank */
    tmpreg1 |= tmpreg2;
    /* Store the new register value */
    ADCx->SQR2 = tmpreg1;
  }
  /* For Rank 13 to 16 */
  else
  {
    /* Get the old register value */
    tmpreg1 = ADCx->SQR1;
    /* Calculate the mask to clear */
    tmpreg2 = SQR1_SQ_Set << (5 * (Rank - 13));
    /* Clear the old SQx bits for the selected rank */
    tmpreg1 &= ~tmpreg2;
    /* Calculate the mask to set */
    tmpreg2 = (uint32_t)ADC_Channel << (5 * (Rank - 13));
    /* Set the SQx bits for the selected rank */
    tmpreg1 |= tmpreg2;
    /* Store the new register value */
    ADCx->SQR1 = tmpreg1;
  }
}

/**
  * @brief  Enables or disables the ADCx conversion through external trigger.
  * @param  ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
  * @param  NewState: new state of the selected ADC external trigger start of conversion.
  *   This parameter can be: ENABLE or DISABLE.
  * @retval None
  */
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;
  }
}

/**
  * @brief  Returns the last ADCx conversion result data for regular channel.
  * @param  ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
  * @retval The Data conversion value.
  */
uint16_t ADC_GetConversionValue(ADC_TypeDef* ADCx)
{
  /* Check the parameters */
  assert_param(IS_ADC_ALL_PERIPH(ADCx));
  /* Return the selected ADC conversion value */
  return (uint16_t) ADCx->DR;
}

/**
  * @brief  Returns the last ADC1 and ADC2 conversion result data in dual mode.
  * @retval The Data conversion value.
  */
uint32_t ADC_GetDualModeConversionValue(void)
{
  /* Return the dual mode conversion value */
  return (*(__IO uint32_t *) DR_ADDRESS);
}

/**
  * @brief  Enables or disables the selected ADC automatic injected group
  *   conversion after regular one.
  * @param  ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
  * @param  NewState: new state of the selected ADC auto injected conversion
  *   This parameter can be: ENABLE or DISABLE.
  * @retval 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;
  }
}

/**
  * @brief  Enables or disables the discontinuous mode for injected group
  *   channel for the specified ADC
  * @param  ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
  * @param  NewState: new state of the selected ADC discontinuous mode
  *   on injected group channel.
  *   This parameter can be: ENABLE or DISABLE.
  * @retval 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;
  }
}

/**
  * @brief  Configures the ADCx external trigger for injected channels conversion.
  * @param  ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
  * @param  ADC_ExternalTrigInjecConv: specifies the ADC trigger to start injected conversion. 
  *   This parameter can be one of the following values:
  *     @arg ADC_ExternalTrigInjecConv_T1_TRGO: Timer1 TRGO event selected (for ADC1, ADC2 and ADC3)
  *     @arg ADC_ExternalTrigInjecConv_T1_CC4: Timer1 capture compare4 selected (for ADC1, ADC2 and ADC3)
  *     @arg ADC_ExternalTrigInjecConv_T2_TRGO: Timer2 TRGO event selected (for ADC1 and ADC2)
  *     @arg ADC_ExternalTrigInjecConv_T2_CC1: Timer2 capture compare1 selected (for ADC1 and ADC2)
  *     @arg ADC_ExternalTrigInjecConv_T3_CC4: Timer3 capture compare4 selected (for ADC1 and ADC2)
  *     @arg ADC_ExternalTrigInjecConv_T4_TRGO: Timer4 TRGO event selected (for ADC1 and ADC2)
  *     @arg ADC_ExternalTrigInjecConv_Ext_IT15_TIM8_CC4: External interrupt line 15 or Timer8
  *                                                       capture compare4 event selected (for ADC1 and ADC2)                       
  *     @arg ADC_ExternalTrigInjecConv_T4_CC3: Timer4 capture compare3 selected (for ADC3 only)
  *     @arg ADC_ExternalTrigInjecConv_T8_CC2: Timer8 capture compare2 selected (for ADC3 only)                         
  *     @arg ADC_ExternalTrigInjecConv_T8_CC4: Timer8 capture compare4 selected (for ADC3 only)
  *     @arg ADC_ExternalTrigInjecConv_T5_TRGO: Timer5 TRGO event selected (for ADC3 only)                         
  *     @arg ADC_ExternalTrigInjecConv_T5_CC4: Timer5 capture compare4 selected (for ADC3 only)                        
  *     @arg ADC_ExternalTrigInjecConv_None: Injected conversion started by software and not
  *                                          by external trigger (for ADC1, ADC2 and ADC3)
  * @retval None
  */
void ADC_ExternalTrigInjectedConvConfig(ADC_TypeDef* ADCx, uint32_t ADC_ExternalTrigInjecConv)
{
  uint32_t 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;
}

/**
  * @brief  Enables or disables the ADCx injected channels conversion through
  *   external trigger
  * @param  ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
  * @param  NewState: new state of the selected ADC external trigger start of
  *   injected conversion.
  *   This parameter can be: ENABLE or DISABLE.
  * @retval 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;
  }
}

/**
  * @brief  Enables or disables the selected ADC start of the injected 
  *   channels conversion.
  * @param  ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
  * @param  NewState: new state of the selected ADC software start injected conversion.
  *   This parameter can be: ENABLE or DISABLE.
  * @retval 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;
  }
}

/**
  * @brief  Gets the selected ADC Software start injected conversion Status.
  * @param  ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
  * @retval 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) != (uint32_t)RESET)
  {
    /* JSWSTART bit is set */
    bitstatus = SET;
  }
  else
  {
    /* JSWSTART bit is reset */
    bitstatus = RESET;
  }
  /* Return the JSWSTART bit status */
  return  bitstatus;
}

/**
  * @brief  Configures for the selected ADC injected channel its corresponding
  *   rank in the sequencer and its sample time.
  * @param  ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
  * @param  ADC_Channel: the ADC channel to configure. 
  *   This parameter can be one of the following values:
  *     @arg ADC_Channel_0: ADC Channel0 selected
  *     @arg ADC_Channel_1: ADC Channel1 selected
  *     @arg ADC_Channel_2: ADC Channel2 selected
  *     @arg ADC_Channel_3: ADC Channel3 selected
  *     @arg ADC_Channel_4: ADC Channel4 selected
  *     @arg ADC_Channel_5: ADC Channel5 selected
  *     @arg ADC_Channel_6: ADC Channel6 selected
  *     @arg ADC_Channel_7: ADC Channel7 selected
  *     @arg ADC_Channel_8: ADC Channel8 selected
  *     @arg ADC_Channel_9: ADC Channel9 selected
  *     @arg ADC_Channel_10: ADC Channel10 selected
  *     @arg ADC_Channel_11: ADC Channel11 selected
  *     @arg ADC_Channel_12: ADC Channel12 selected
  *     @arg ADC_Channel_13: ADC Channel13 selected
  *     @arg ADC_Channel_14: ADC Channel14 selected
  *     @arg ADC_Channel_15: ADC Channel15 selected
  *     @arg ADC_Channel_16: ADC Channel16 selected
  *     @arg ADC_Channel_17: ADC Channel17 selected
  * @param  Rank: The rank in the injected group sequencer. This parameter must be between 1 and 4.
  * @param  ADC_SampleTime: The sample time value to be set for the selected channel. 
  *   This parameter can be one of the following values:
  *     @arg ADC_SampleTime_1Cycles5: Sample time equal to 1.5 cycles
  *     @arg ADC_SampleTime_7Cycles5: Sample time equal to 7.5 cycles
  *     @arg ADC_SampleTime_13Cycles5: Sample time equal to 13.5 cycles
  *     @arg ADC_SampleTime_28Cycles5: Sample time equal to 28.5 cycles	
  *     @arg ADC_SampleTime_41Cycles5: Sample time equal to 41.5 cycles	
  *     @arg ADC_SampleTime_55Cycles5: Sample time equal to 55.5 cycles	
  *     @arg ADC_SampleTime_71Cycles5: Sample time equal to 71.5 cycles	
  *     @arg ADC_SampleTime_239Cycles5: Sample time equal to 239.5 cycles	
  * @retval None
  */
void ADC_InjectedChannelConfig(ADC_TypeDef* ADCx, uint8_t ADC_Channel, uint8_t Rank, uint8_t ADC_SampleTime)
{
  uint32_t 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 channel sample time */
    tmpreg1 &= ~tmpreg2;
    /* Calculate the mask to set */
    tmpreg2 = (uint32_t)ADC_SampleTime << (3*(ADC_Channel - 10));
    /* Set the new channel sample time */
    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 channel sample time */
    tmpreg1 &= ~tmpreg2;
    /* Calculate the mask to set */
    tmpreg2 = (uint32_t)ADC_SampleTime << (3 * ADC_Channel);
    /* Set the new channel sample time */
    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 * (uint8_t)((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 = (uint32_t)ADC_Channel << (5 * (uint8_t)((Rank + 3) - (tmpreg3 + 1)));
  /* Set the JSQx bits for the selected rank */
  tmpreg1 |= tmpreg2;
  /* Store the new register value */