ADC - Analog to Digital Converter#

ADC_AcqTime_TypeDef#

ADC_AcqTime_TypeDef

Acquisition time (in ADC clock cycles).

ADC_LPFilter_TypeDef#

ADC_LPFilter_TypeDef

Lowpass filter mode.

ADC_OvsRateSel_TypeDef#

ADC_OvsRateSel_TypeDef

Oversample rate select.

ADC_PRSSEL_TypeDef#

ADC_PRSSEL_TypeDef

Peripheral Reflex System signal used to trigger a single sample.

ADC_Ref_TypeDef#

ADC_Ref_TypeDef

Single and scan mode voltage references.

Using unshifted enumerations and or in ADC_CTRLX_VREFSEL_REG to select the extension register CTRLX_VREFSEL. ADC Reference

ADC_Res_TypeDef#

ADC_Res_TypeDef

Sample resolution.

ADC_SingleInput_TypeDef#

ADC_SingleInput_TypeDef

Single sample input selection.

ADC_Start_TypeDef#

ADC_Start_TypeDef

ADC start command.

ADC_Warmup_TypeDef#

ADC_Warmup_TypeDef

Warm-up mode.

ADC_Init#

void ADC_Init (ADC_TypeDef *adc, const ADC_Init_TypeDef *init)

Initialize ADC.

Initializes common parts for both single conversion and scan sequence. In addition, single and/or scan control configuration must be done. See ADC_InitSingle() and ADC_InitScan() respectively. For ADC architectures with the ADCn->SCANINPUTSEL register, use ADC_ScanSingleEndedInputAdd() to configure single-ended scan inputs or ADC_ScanDifferentialInputAdd() to configure differential scan inputs. ADC_ScanInputClear() is also provided for applications that need to update the input configuration.

Note

• This function will stop any ongoing conversion.

ADC_InitScan#

void ADC_InitScan (ADC_TypeDef *adc, const ADC_InitScan_TypeDef *init)

Initialize the ADC scan sequence.

See ADC_Start() for starting a scan sequence.

When selecting an external reference, the gain and offset calibration must be set explicitly (CAL register). For other references, the calibration is updated with values defined during manufacturing. For ADC architectures with the ADCn->SCANINPUTSEL register, use ADC_ScanSingleEndedInputAdd() to configure single-ended scan inputs or ADC_ScanDifferentialInputAdd() to configure differential scan inputs. ADC_ScanInputClear() is also provided for applications that need to update the input configuration.

Note

• This function will stop any ongoing scan sequence.

ADC_InitSingle#

void ADC_InitSingle (ADC_TypeDef *adc, const ADC_InitSingle_TypeDef *init)

Initialize the single ADC sample conversion.

See ADC_Start() for starting a single conversion.

When selecting an external reference, the gain and offset calibration must be set explicitly (CAL register). For other references, the calibration is updated with values defined during manufacturing.

Note

• This function will stop any ongoing single conversion.

ADC_PrescaleCalc#

uint8_t ADC_PrescaleCalc (uint32_t adcFreq, uint32_t hfperFreq)

Calculate the prescaler value used to determine the ADC clock.

The ADC clock is given by: (HFPERCLK or HFPERCCLK) / (prescale + 1).

Note

• The return value is clamped to the maximum prescaler value that the hardware supports.

Returns

• A prescaler value to use for ADC in order to achieve a clock value <= adcFreq.

ADC_Reset#

void ADC_Reset (ADC_TypeDef *adc)

Reset ADC to a state that it was in after a hardware reset.

Note

• The ROUTE register is NOT reset by this function to allow a centralized setup of this feature.

ADC_TimebaseCalc#

uint8_t ADC_TimebaseCalc (uint32_t hfperFreq)

Calculate a timebase value to get a timebase providing at least 1 us.

Returns

• A timebase value to use for ADC to achieve at least 1 us.

ADC_DataSingleGet#

uint32_t ADC_DataSingleGet (ADC_TypeDef *adc)

Get a single conversion result.

Note

• Check data valid flag before calling this function.

Returns

• Single conversion data.

ADC_DataSinglePeek#

uint32_t ADC_DataSinglePeek (ADC_TypeDef *adc)

Peek single conversion result.

Note

• Check data valid flag before calling this function.

Returns

• Single conversion data.

ADC_DataScanGet#

uint32_t ADC_DataScanGet (ADC_TypeDef *adc)

Get a scan result.

Note

• Check data valid flag before calling this function.

Returns

• Scan conversion data.

ADC_DataScanPeek#

uint32_t ADC_DataScanPeek (ADC_TypeDef *adc)

Peek scan result.

Note

• Check data valid flag before calling this function.

Returns

• Scan conversion data.

ADC_IntClear#

void ADC_IntClear (ADC_TypeDef *adc, uint32_t flags)

Clear one or more pending ADC interrupts.

ADC_IntDisable#

void ADC_IntDisable (ADC_TypeDef *adc, uint32_t flags)

Disable one or more ADC interrupts.

ADC_IntEnable#

void ADC_IntEnable (ADC_TypeDef *adc, uint32_t flags)

Enable one or more ADC interrupts.

Note

• Depending on use, a pending interrupt may already be set prior to enabling the interrupt. Consider using ADC_IntClear() prior to enabling if the pending interrupt should be ignored.

ADC_IntGet#

uint32_t ADC_IntGet (ADC_TypeDef *adc)

Get pending ADC interrupt flags.

Note

• This function does not clear event bits.

Returns

• ADC interrupt sources pending. A bitwise logic OR combination of valid interrupt flags for the ADC module (ADC_IF_nnn).

ADC_IntGetEnabled#

uint32_t ADC_IntGetEnabled (ADC_TypeDef *adc)

Get enabled and pending ADC interrupt flags.

Useful for handling more interrupt sources in the same interrupt handler.

Note

• This function does not clear interrupt flags.

Returns

• Pending and enabled ADC interrupt sources. The return value is the bitwise AND combination of

  • the OR combination of enabled interrupt sources in ADCx_IEN_nnn register (ADCx_IEN_nnn) and

  • the OR combination of valid interrupt flags of the ADC module (ADCx_IF_nnn).

ADC_IntSet#

void ADC_IntSet (ADC_TypeDef *adc, uint32_t flags)

Set one or more pending ADC interrupts from software.

ADC_Start#

void ADC_Start (ADC_TypeDef *adc, ADC_Start_TypeDef cmd)

Start scan sequence and/or single conversion.

ADC_INIT_DEFAULT#

#define ADC_INIT_DEFAULT

Default configuration for ADC initialization structure.

ADC_INITSCAN_DEFAULT#

#define ADC_INITSCAN_DEFAULT

Default configuration for ADC scan initialization structure.

ADC_INITSINGLE_DEFAULT#

#define ADC_INITSINGLE_DEFAULT

Default configuration for ADC single conversion initialization structure.