Description

Incremental Analog to Digital Converter (IADC) Peripheral API.

This module contains functions to control the IADC peripheral of Silicon Labs 32-bit MCUs and SoCs. The IADC is used to convert analog signals into a digital representation.

Data Structures
struct	IADC_Init_t
	IADC init structure, common for single conversion and scan sequence.

struct	IADC_Config_t
	IADC config structure.

struct	IADC_AllConfigs_t
	Structure for all IADC configs.

struct	IADC_InitScan_t
	IADC scan init structure.

struct	IADC_InitSingle_t
	IADC single init structure.

struct	IADC_SingleInput_t
	IADC single input selection structure.

struct	IADC_ScanTableEntry_t
	IADC scan table entry structure.

struct	IADC_ScanTable_t
	Structure for IADC scan table.

struct	IADC_Result_t
	Structure holding IADC result, including data and ID.

Functions
void	IADC_init (IADC_TypeDef iadc, const IADC_Init_t init, const IADC_AllConfigs_t *allConfigs)
	Initialize IADC.

void	IADC_reset (IADC_TypeDef *iadc)
	Reset IADC to same state as after a HW reset.

void	IADC_initScan (IADC_TypeDef iadc, const IADC_InitScan_t init, const IADC_ScanTable_t *scanTable)
	Initialize IADC scan sequence.

void	IADC_updateScanEntry (IADC_TypeDef iadc, uint8_t id, IADC_ScanTableEntry_t entry)
	Add/update entry in scan table.

void	IADC_setScanMask (IADC_TypeDef *iadc, uint32_t mask)
	Set mask of IADC scan table entries to include in scan.

void	IADC_initSingle (IADC_TypeDef iadc, const IADC_InitSingle_t init, const IADC_SingleInput_t *input)
	Initialize single IADC conversion.

void	IADC_updateSingleInput (IADC_TypeDef iadc, const IADC_SingleInput_t input)
	Update IADC single input selection.

uint8_t	IADC_calcSrcClkPrescale (IADC_TypeDef *iadc, uint32_t srcClkFreq, uint32_t cmuClkFreq)
	Calculate prescaler for CLK_SRC_ADC high speed clock.

uint32_t	IADC_calcAdcClkPrescale (IADC_TypeDef *iadc, uint32_t adcClkFreq, uint32_t cmuClkFreq, IADC_CfgAdcMode_t adcMode, uint8_t srcClkPrescaler)
	Calculate prescaler for ADC_CLK clock.

uint8_t	IADC_calcTimebase (IADC_TypeDef *iadc, uint32_t srcClkFreq)
	Calculate timebase value in order to get a timebase providing at least 1us.

IADC_Result_t	IADC_readSingleResult (IADC_TypeDef *iadc)
	Read most recent single conversion result.

IADC_Result_t	IADC_pullSingleFifoResult (IADC_TypeDef *iadc)
	Pull result from single data FIFO.

IADC_Result_t	IADC_readScanResult (IADC_TypeDef *iadc)
	Read most recent scan conversion result.

IADC_Result_t	IADC_pullScanFifoResult (IADC_TypeDef *iadc)
	Pull result from scan data FIFO.

uint32_t	IADC_getReferenceVoltage ( IADC_CfgReference_t reference)
	Get reference voltage selection.

uint32_t	IADC_pullSingleFifoData (IADC_TypeDef *iadc)
	Pull data from single data FIFO.

uint32_t	IADC_readSingleData (IADC_TypeDef *iadc)
	Read most recent single conversion data.

uint32_t	IADC_pullScanFifoData (IADC_TypeDef *iadc)
	Pull data from scan data FIFO.

uint32_t	IADC_readScanData (IADC_TypeDef *iadc)
	Read most recent scan conversion data.

void	IADC_clearInt (IADC_TypeDef *iadc, uint32_t flags)
	Clear one or more pending IADC interrupts.

void	IADC_disableInt (IADC_TypeDef *iadc, uint32_t flags)
	Disable one or more IADC interrupts.

void	IADC_enableInt (IADC_TypeDef *iadc, uint32_t flags)
	Enable one or more IADC interrupts.

uint32_t	IADC_getInt (IADC_TypeDef *iadc)
	Get pending IADC interrupt flags.

uint32_t	IADC_getEnabledInt (IADC_TypeDef *iadc)
	Get enabled and pending IADC interrupt flags.

void	IADC_setInt (IADC_TypeDef *iadc, uint32_t flags)
	Set one or more pending IADC interrupts from SW.

void	IADC_command (IADC_TypeDef *iadc, IADC_Cmd_t cmd)
	Start/stop scan sequence, single conversion and/or timer.

uint32_t	IADC_getScanMask (IADC_TypeDef *iadc)
	Get the scan mask currently used in the IADC.

uint32_t	IADC_getStatus (IADC_TypeDef *iadc)
	Get status bits of IADC.

uint8_t	IADC_getSingleFifoCnt (IADC_TypeDef *iadc)
	Get the number of elements in the IADC single FIFO.

uint8_t	IADC_getScanFifoCnt (IADC_TypeDef *iadc)
	Get the number of elements in the IADC scan FIFO.

IADC_NegInput_t	IADC_portPinToNegInput ( GPIO_Port_TypeDef port, uint8_t pin)
	Convert the GPIO port/pin to IADC negative input selection.

IADC_PosInput_t	IADC_portPinToPosInput ( GPIO_Port_TypeDef port, uint8_t pin)
	Convert the GPIO port/pin to IADC positive input selection.

Macros
#define	IADC_INIT_DEFAULT
	Default config for IADC init structure.

#define	IADC_CONFIG_DEFAULT
	Default IADC config structure.

#define	IADC_ALLCONFIGS_DEFAULT
	Default IADC sructure for all configs.

#define	IADC_INITSCAN_DEFAULT
	Default config for IADC scan init structure.

#define	IADC_INITSINGLE_DEFAULT
	Default config for IADC single init structure.

#define	IADC_SINGLEINPUT_DEFAULT
	Default config for IADC single input structure.

#define	IADC_SCANTABLEENTRY_DEFAULT
	Default config for IADC scan table entry structure.

#define	IADC_SCANTABLE_DEFAULT
	Default IADC structure for scan table.

Enumerations
enum	IADC_Warmup_t { iadcWarmupNormal = _IADC_CTRL_WARMUPMODE_NORMAL, iadcWarmupKeepInStandby = _IADC_CTRL_WARMUPMODE_KEEPINSTANDBY, iadcWarmupKeepWarm = _IADC_CTRL_WARMUPMODE_KEEPWARM }
	Warm-up mode.

enum	IADC_Alignment_t { iadcAlignRight12 = _IADC_SCANFIFOCFG_ALIGNMENT_RIGHT12, iadcAlignLeft12 = _IADC_SCANFIFOCFG_ALIGNMENT_LEFT12, iadcAlignRight16 = _IADC_SCANFIFOCFG_ALIGNMENT_RIGHT16, iadcAlignLeft16 = _IADC_SCANFIFOCFG_ALIGNMENT_LEFT16, iadcAlignRight20 = _IADC_SCANFIFOCFG_ALIGNMENT_RIGHT20, iadcAlignLeft20 = _IADC_SCANFIFOCFG_ALIGNMENT_LEFT20 }
	IADC result alignment.

enum	IADC_NegInput_t { iadcNegInputGnd , iadcNegInputGndaux = (_IADC_SCAN_PORTNEG_GND << (_IADC_SCAN_PORTNEG_SHIFT - _IADC_SCAN_PINNEG_SHIFT)), iadcNegInputDac1 = (_IADC_SCAN_PORTNEG_DAC1 << (_IADC_SCAN_PORTNEG_SHIFT - _IADC_SCAN_PINNEG_SHIFT)), iadcNegInputPadAna1 = (_IADC_SCAN_PORTNEG_PADANA1 << (_IADC_SCAN_PORTNEG_SHIFT - _IADC_SCAN_PINNEG_SHIFT)), iadcNegInputPortAPin0 = (_IADC_SCAN_PORTNEG_PORTA << (_IADC_SCAN_PORTNEG_SHIFT - _IADC_SCAN_PINNEG_SHIFT)), iadcNegInputPortAPin1 , iadcNegInputPortAPin2 , iadcNegInputPortAPin3 , iadcNegInputPortAPin4 , iadcNegInputPortAPin5 , iadcNegInputPortAPin6 , iadcNegInputPortAPin7 , iadcNegInputPortAPin8 , iadcNegInputPortAPin9 , iadcNegInputPortAPin10 , iadcNegInputPortAPin11 , iadcNegInputPortAPin12 , iadcNegInputPortAPin13 , iadcNegInputPortAPin14 , iadcNegInputPortAPin15 , iadcNegInputPortBPin0 , iadcNegInputPortBPin1 , iadcNegInputPortBPin2 , iadcNegInputPortBPin3 , iadcNegInputPortBPin4 , iadcNegInputPortBPin5 , iadcNegInputPortBPin6 , iadcNegInputPortBPin7 , iadcNegInputPortBPin8 , iadcNegInputPortBPin9 , iadcNegInputPortBPin10 , iadcNegInputPortBPin11 , iadcNegInputPortBPin12 , iadcNegInputPortBPin13 , iadcNegInputPortBPin14 , iadcNegInputPortBPin15 , iadcNegInputPortCPin0 , iadcNegInputPortCPin1 , iadcNegInputPortCPin2 , iadcNegInputPortCPin3 , iadcNegInputPortCPin4 , iadcNegInputPortCPin5 , iadcNegInputPortCPin6 , iadcNegInputPortCPin7 , iadcNegInputPortCPin8 , iadcNegInputPortCPin9 , iadcNegInputPortCPin10 , iadcNegInputPortCPin11 , iadcNegInputPortCPin12 , iadcNegInputPortCPin13 , iadcNegInputPortCPin14 , iadcNegInputPortCPin15 , iadcNegInputPortDPin0 , iadcNegInputPortDPin1 , iadcNegInputPortDPin2 , iadcNegInputPortDPin3 , iadcNegInputPortDPin4 , iadcNegInputPortDPin5 , iadcNegInputPortDPin6 , iadcNegInputPortDPin7 , iadcNegInputPortDPin8 , iadcNegInputPortDPin9 , iadcNegInputPortDPin10 , iadcNegInputPortDPin11 , iadcNegInputPortDPin12 , iadcNegInputPortDPin13 , iadcNegInputPortDPin14 , iadcNegInputPortDPin15 }
	IADC negative input selection.

enum	IADC_PosInput_t { iadcPosInputGnd = (_IADC_SCAN_PORTPOS_GND << (_IADC_SCAN_PORTPOS_SHIFT - _IADC_SCAN_PINPOS_SHIFT)), iadcPosInputAvdd , iadcPosInputVddio , iadcPosInputVss , iadcPosInputVssaux , iadcPosInputDvdd , iadcPosInputDecouple , iadcPosInputDac0 = (_IADC_SCAN_PORTPOS_DAC0 << (_IADC_SCAN_PORTPOS_SHIFT - _IADC_SCAN_PINPOS_SHIFT)), iadcPosInputPadAna0 = (_IADC_SCAN_PORTPOS_PADANA0 << (_IADC_SCAN_PORTPOS_SHIFT - _IADC_SCAN_PINPOS_SHIFT)), iadcPosInputPortAPin0 = (_IADC_SCAN_PORTPOS_PORTA << (_IADC_SCAN_PORTPOS_SHIFT - _IADC_SCAN_PINPOS_SHIFT)), iadcPosInputPortAPin1 , iadcPosInputPortAPin2 , iadcPosInputPortAPin3 , iadcPosInputPortAPin4 , iadcPosInputPortAPin5 , iadcPosInputPortAPin6 , iadcPosInputPortAPin7 , iadcPosInputPortAPin8 , iadcPosInputPortAPin9 , iadcPosInputPortAPin10 , iadcPosInputPortAPin11 , iadcPosInputPortAPin12 , iadcPosInputPortAPin13 , iadcPosInputPortAPin14 , iadcPosInputPortAPin15 , iadcPosInputPortBPin0 , iadcPosInputPortBPin1 , iadcPosInputPortBPin2 , iadcPosInputPortBPin3 , iadcPosInputPortBPin4 , iadcPosInputPortBPin5 , iadcPosInputPortBPin6 , iadcPosInputPortBPin7 , iadcPosInputPortBPin8 , iadcPosInputPortBPin9 , iadcPosInputPortBPin10 , iadcPosInputPortBPin11 , iadcPosInputPortBPin12 , iadcPosInputPortBPin13 , iadcPosInputPortBPin14 , iadcPosInputPortBPin15 , iadcPosInputPortCPin0 , iadcPosInputPortCPin1 , iadcPosInputPortCPin2 , iadcPosInputPortCPin3 , iadcPosInputPortCPin4 , iadcPosInputPortCPin5 , iadcPosInputPortCPin6 , iadcPosInputPortCPin7 , iadcPosInputPortCPin8 , iadcPosInputPortCPin9 , iadcPosInputPortCPin10 , iadcPosInputPortCPin11 , iadcPosInputPortCPin12 , iadcPosInputPortCPin13 , iadcPosInputPortCPin14 , iadcPosInputPortCPin15 , iadcPosInputPortDPin0 , iadcPosInputPortDPin1 , iadcPosInputPortDPin2 , iadcPosInputPortDPin3 , iadcPosInputPortDPin4 , iadcPosInputPortDPin5 , iadcPosInputPortDPin6 , iadcPosInputPortDPin7 , iadcPosInputPortDPin8 , iadcPosInputPortDPin9 , iadcPosInputPortDPin10 , iadcPosInputPortDPin11 , iadcPosInputPortDPin12 , iadcPosInputPortDPin13 , iadcPosInputPortDPin14 , iadcPosInputPortDPin15 }
	IADC positive port selection.

enum	IADC_Cmd_t { iadcCmdStartSingle = IADC_CMD_SINGLESTART, iadcCmdStopSingle = IADC_CMD_SINGLESTOP, iadcCmdStartScan = IADC_CMD_SCANSTART, iadcCmdStopScan = IADC_CMD_SCANSTOP, iadcCmdEnableTimer = IADC_CMD_TIMEREN, iadcCmdDisableTimer = IADC_CMD_TIMERDIS }
	IADC Commands.

enum	IADC_CfgAdcMode_t { iadcCfgModeNormal = _IADC_CFG_ADCMODE_NORMAL, iadcCfgModeHighSpeed = _IADC_CFG_ADCMODE_HIGHSPEED, iadcCfgModeHighAccuracy = _IADC_CFG_ADCMODE_HIGHACCURACY }
	IADC Configuration.

enum	IADC_CfgOsrHighSpeed_t { iadcCfgOsrHighSpeed2x = _IADC_CFG_OSRHS_HISPD2, iadcCfgOsrHighSpeed4x = _IADC_CFG_OSRHS_HISPD4, iadcCfgOsrHighSpeed8x = _IADC_CFG_OSRHS_HISPD8, iadcCfgOsrHighSpeed16x = _IADC_CFG_OSRHS_HISPD16, iadcCfgOsrHighSpeed32x = _IADC_CFG_OSRHS_HISPD32, iadcCfgOsrHighSpeed64x = _IADC_CFG_OSRHS_HISPD64 }
	IADC Over sampling rate for high speed.

enum	IADC_CfgOsrHighAccuracy_t { iadcCfgOsrHighAccuracy16x = _IADC_CFG_OSRHA_HIACC16, iadcCfgOsrHighAccuracy32x = _IADC_CFG_OSRHA_HIACC32, iadcCfgOsrHighAccuracy64x = _IADC_CFG_OSRHA_HIACC64, iadcCfgOsrHighAccuracy92x = _IADC_CFG_OSRHA_HIACC92, iadcCfgOsrHighAccuracy128x = _IADC_CFG_OSRHA_HIACC128, iadcCfgOsrHighAccuracy256x = _IADC_CFG_OSRHA_HIACC256 }
	IADC Over sampling rate for high accuracy.

enum	IADC_CfgAnalogGain_t { iadcCfgAnalogGain0P5x = _IADC_CFG_ANALOGGAIN_ANAGAIN0P5, iadcCfgAnalogGain1x = _IADC_CFG_ANALOGGAIN_ANAGAIN1, iadcCfgAnalogGain2x = _IADC_CFG_ANALOGGAIN_ANAGAIN2, iadcCfgAnalogGain3x = _IADC_CFG_ANALOGGAIN_ANAGAIN3, iadcCfgAnalogGain4x = _IADC_CFG_ANALOGGAIN_ANAGAIN4 }
	IADC Analog Gain.

enum	IADC_CfgReference_t { iadcCfgReferenceInt1V2 = _IADC_CFG_REFSEL_VBGR, iadcCfgReferenceExt1V25 = _IADC_CFG_REFSEL_VREF, iadcCfgReferenceExt2V5 = _IADC_CFG_REFSEL_VREF2P5, iadcCfgReferenceVddx = _IADC_CFG_REFSEL_VDDX, iadcCfgReferenceVddX0P8Buf = _IADC_CFG_REFSEL_VDDX0P8BUF }
	IADC Reference.

enum	IADC_CfgTwosComp_t { iadcCfgTwosCompAuto = _IADC_CFG_TWOSCOMPL_AUTO, iadcCfgTwosCompUnipolar = _IADC_CFG_TWOSCOMPL_FORCEUNIPOLAR, iadcCfgTwosCompBipolar = _IADC_CFG_TWOSCOMPL_FORCEBIPOLAR }
	IADC Two's complement results.

enum	IADC_TriggerSel_t { iadcTriggerSelImmediate = _IADC_TRIGGER_SCANTRIGSEL_IMMEDIATE, iadcTriggerSelTimer = _IADC_TRIGGER_SCANTRIGSEL_TIMER, iadcTriggerSelPrs0SameClk = _IADC_TRIGGER_SCANTRIGSEL_PRSCLKGRP, iadcTriggerSelPrs0PosEdge = _IADC_TRIGGER_SCANTRIGSEL_PRSPOS, iadcTriggerSelPrs0NegEdge = _IADC_TRIGGER_SCANTRIGSEL_PRSNEG, iadcTriggerSelLesense = _IADC_TRIGGER_SCANTRIGSEL_LESENSE }
	IADC trigger action.

enum	IADC_TriggerAction_t { iadcTriggerActionOnce = _IADC_TRIGGER_SCANTRIGACTION_ONCE, iadcTriggerActionContinuous = _IADC_TRIGGER_SCANTRIGACTION_CONTINUOUS }
	IADC trigger action.

enum	IADC_FifoCfgDvl_t { iadcFifoCfgDvl1 = _IADC_SCANFIFOCFG_DVL_VALID1, iadcFifoCfgDvl2 = _IADC_SCANFIFOCFG_DVL_VALID2, iadcFifoCfgDvl3 = _IADC_SCANFIFOCFG_DVL_VALID3, iadcFifoCfgDvl4 = _IADC_SCANFIFOCFG_DVL_VALID4, iadcFifoCfgDvl5 = _IADC_SCANFIFOCFG_DVL_VALID5, iadcFifoCfgDvl6 = _IADC_SCANFIFOCFG_DVL_VALID6, iadcFifoCfgDvl7 = _IADC_SCANFIFOCFG_DVL_VALID7 }
	IADC data valid level before requesting DMA transfer.

enum	IADC_DigitalAveraging_t { iadcDigitalAverage1 = _IADC_CFG_DIGAVG_AVG1, iadcDigitalAverage2 = _IADC_CFG_DIGAVG_AVG2, iadcDigitalAverage4 = _IADC_CFG_DIGAVG_AVG4, iadcDigitalAverage8 = _IADC_CFG_DIGAVG_AVG8, iadcDigitalAverage16 = _IADC_CFG_DIGAVG_AVG16 }
	IADC digital averaging function.

Function Documentation

◆ IADC_init()

void IADC_init	(	IADC_TypeDef *	`iadc,`
		const IADC_Init_t *	`init,`
		const IADC_AllConfigs_t *	`allConfigs`
	)

Initialize IADC.

Initializes common parts for both single conversion and scan sequence. In addition, single and/or scan control configuration must be done, please refer to IADC_initSingle() and IADC_initScan() respectively.

Note: This function will stop any ongoing conversions.

Parameters

[in]	`iadc`	Pointer to IADC peripheral register block.
[in]	`init`	Pointer to IADC initialization structure.
[in]	`allConfigs`	Pointer to structure holding all configs.

◆ IADC_reset()

void IADC_reset ( IADC_TypeDef * iadc )

Reset IADC to same state as after a HW reset.

Parameters

[in] iadc Pointer to IADC peripheral register block.

◆ IADC_initScan()

void IADC_initScan	(	IADC_TypeDef *	`iadc,`
		const IADC_InitScan_t *	`init,`
		const IADC_ScanTable_t *	`scanTable`
	)

Initialize IADC scan sequence.

This function will configure scan mode and set up entries in the scan table. The scan table mask can be updated by calling IADC_updateScanMask.

Note: This function will stop any ongoing conversions.; If an even numbered pin is selected for the positive input, the negative input must use an odd numbered pin and vice versa.

Parameters

[in]	`iadc`	Pointer to IADC peripheral register block.
[in]	`init`	Pointer to IADC initialization structure.
[in]	`scanTable`	Pointer to IADC scan table structure.

◆ IADC_updateScanEntry()

void IADC_updateScanEntry	(	IADC_TypeDef *	`iadc,`
		uint8_t	`id,`
		IADC_ScanTableEntry_t *	`entry`
	)

Add/update entry in scan table.

This function will update or add an entry in the scan table with a specific ID.

Note: This function will stop any ongoing conversions.

Parameters

[in]	`iadc`	Pointer to IADC peripheral register block.
[in]	`id`	ID of scan table entry to add.
[in]	`entry`	Pointer to scan table entry structure.

◆ IADC_setScanMask()

void IADC_setScanMask	(	IADC_TypeDef *	`iadc,`
		uint32_t	`mask`
	)

Set mask of IADC scan table entries to include in scan.

Set mask of scan table entries to include in next scan. This function can be called while scan conversions are ongoing, but the new scan mask will take effect once the ongoing scan is completed.

Parameters

[in]	`iadc`	Pointer to IADC peripheral register block.
[in]	`mask`	Mask of scan table entries to include in scan.

◆ IADC_initSingle()

void IADC_initSingle	(	IADC_TypeDef *	`iadc,`
		const IADC_InitSingle_t *	`init,`
		const IADC_SingleInput_t *	`input`
	)

Initialize single IADC conversion.

This function will initialize the single conversion and configure the single input selection.

Note: This function will stop any ongoing conversions.; If an even numbered pin is selected for the positive input, the negative input must use an odd numbered pin and vice versa.

Parameters

[in]	`iadc`	Pointer to IADC peripheral register block.
[in]	`init`	Pointer to IADC single initialization structure.
[in]	`input`	Pointer to IADC single input selection initialization structure.

◆ IADC_updateSingleInput()

void IADC_updateSingleInput	(	IADC_TypeDef *	`iadc,`
		const IADC_SingleInput_t *	`input`
	)

Update IADC single input selection.

This function updates the single input selection. The function can be called while single and/or scan conversions are ongoing and the new input configuration will take place on the next single conversion.

Note: If an even numbered pin is selected for the positive input, the negative input must use an odd numbered pin and vice versa.

Parameters

[in]	`iadc`	Pointer to IADC peripheral register block.
[in]	`input`	Pointer to single input selection structure.

◆ IADC_calcSrcClkPrescale()

uint8_t IADC_calcSrcClkPrescale	(	IADC_TypeDef *	`iadc,`
		uint32_t	`srcClkFreq,`
		uint32_t	`cmuClkFreq`
	)

Calculate prescaler for CLK_SRC_ADC high speed clock.

The IADC high speed clock is given by: CLK_SRC_ADC / (srcClkPrescaler + 1).

Parameters

[in]	`iadc`	Pointer to IADC peripheral register block.
[in]	`srcClkFreq`	CLK_SRC_ADC frequency wanted. The frequency will automatically be adjusted to be within valid range according to reference manual.
[in]	`cmuClkFreq`	Frequency in Hz of reference CLK_CMU_ADC. Set to 0 to use currently defined CMU clock setting for the IADC.

Returns: Divider value to use for IADC in order to achieve a high speed clock value <= srcClkFreq .

◆ IADC_calcAdcClkPrescale()

uint32_t IADC_calcAdcClkPrescale	(	IADC_TypeDef *	`iadc,`
		uint32_t	`adcClkFreq,`
		uint32_t	`cmuClkFreq,`
		IADC_CfgAdcMode_t	`adcMode,`
		uint8_t	`srcClkPrescaler`
	)

Calculate prescaler for ADC_CLK clock.

The ADC_CLK is given by: CLK_SRC_ADC / (adcClkprescale + 1).

Parameters

[in]	`iadc`	Pointer to IADC peripheral register block.
[in]	`adcClkFreq`	ADC_CLK frequency wanted. The frequency will automatically be adjusted to be within valid range according to reference manual.
[in]	`cmuClkFreq`	Frequency in Hz of CLK_CMU_ADC Set to 0 to use currently defined IADC clock setting (in CMU).
[in]	`adcMode`	Mode for IADC config.
[in]	`srcClkPrescaler`	Precaler setting for ADC_CLK

Returns: Divider value to use for IADC in order to achieve a ADC_CLK frequency <= adcClkFreq .

◆ IADC_calcTimebase()

uint8_t IADC_calcTimebase	(	IADC_TypeDef *	`iadc,`
		uint32_t	`srcClkFreq`
	)

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

Parameters

[in]	`iadc`	Pointer to IADC peripheral register block.
[in]	`srcClkFreq`	Frequency in Hz of reference CLK_SRC_ADC clock. Set to 0 to derive srcClkFreq from CLK_CMU_ADC and prescaler HSCLKRATE.

Returns: Timebase value to use for IADC in order to achieve at least 1 us.

◆ IADC_readSingleResult()

IADC_Result_t IADC_readSingleResult ( IADC_TypeDef * iadc )

Read most recent single conversion result.

The result struct includes both the data and the ID (0x20) if showId was set when initializing single mode. Calling this function will not affect the state of the single data FIFO.

Note: Check data valid flag before calling this function.

Parameters

[in] iadc Pointer to IADC peripheral register block.

Returns: Single conversion result struct holding data and id.

◆ IADC_pullSingleFifoResult()

IADC_Result_t IADC_pullSingleFifoResult ( IADC_TypeDef * iadc )

Pull result from single data FIFO.

The result struct includes both the data and the ID (0x20) if showId was set when initializing single mode.

Note: Check data valid flag before calling this function.

Parameters

[in] iadc Pointer to IADC peripheral register block.

Returns: Single conversion result struct holding data and id.

◆ IADC_readScanResult()

IADC_Result_t IADC_readScanResult ( IADC_TypeDef * iadc )

Read most recent scan conversion result.

The result struct includes both the data and the ID (0x20) if showId was set when initializing scan entry. Calling this function will not affect the state of the scan data FIFO.

Note: Check data valid flag before calling this function.

Parameters

[in] iadc Pointer to IADC peripheral register block.

Returns: Scan conversion result struct holding data and id.

◆ IADC_pullScanFifoResult()

IADC_Result_t IADC_pullScanFifoResult ( IADC_TypeDef * iadc )

Pull result from scan data FIFO.

The result struct includes both the data and the ID (0x20) if showId was set when initializing scan entry.

Note: Check data valid flag before calling this function.

Parameters

[in] iadc Pointer to IADC peripheral register block.

Returns: Scan conversion result struct holding data and id.

◆ IADC_getReferenceVoltage()

uint32_t IADC_getReferenceVoltage ( IADC_CfgReference_t reference )

Get reference voltage selection.

Parameters

[in] reference IADC Reference selection.

Returns: IADC reference voltage in millivolts.

◆ IADC_pullSingleFifoData()

uint32_t IADC_pullSingleFifoData ( IADC_TypeDef * iadc )

inline

Pull data from single data FIFO.

If showId was set when initializing single mode, the results will contain the ID (0x20).

Note: Check data valid flag before calling this function.

Parameters

[in] iadc Pointer to IADC peripheral register block.

Returns: Single conversion data.

◆ IADC_readSingleData()

uint32_t IADC_readSingleData ( IADC_TypeDef * iadc )

inline

Read most recent single conversion data.

If showId was set when initializing single mode, the data will contain the ID (0x20). Calling this function will not affect the state of the single data FIFO.

Note: Check data valid flag before calling this function.

Parameters

[in] iadc Pointer to IADC peripheral register block.

Returns: Single conversion data.

◆ IADC_pullScanFifoData()

uint32_t IADC_pullScanFifoData ( IADC_TypeDef * iadc )

inline

Pull data from scan data FIFO.

If showId was set for the scan entry initialization, the data will contain the ID of the scan entry.

Note: Check data valid flag before calling this function.

Parameters

[in] iadc Pointer to IADC peripheral register block.

Returns: Scan conversion data.

◆ IADC_readScanData()

uint32_t IADC_readScanData ( IADC_TypeDef * iadc )

inline

Read most recent scan conversion data.

If showId was set for the scan entry initialization, the data will contain the ID of the scan entry. Calling this function will not affect the state of the scan data FIFO.

Note: Check data valid flag before calling this function.

Parameters

[in] iadc Pointer to IADC peripheral register block.

Returns: Scan conversion data.

◆ IADC_clearInt()

void IADC_clearInt	(	IADC_TypeDef *	`iadc,`
		uint32_t	`flags`
	)

inline

Clear one or more pending IADC interrupts.

Parameters

[in]	`iadc`	Pointer to IADC peripheral register block.
[in]	`flags`	Pending IADC interrupt source to clear. Use a bitwise logic OR combination of valid interrupt flags for the IADC module (IADC_IF_nnn).

◆ IADC_disableInt()

void IADC_disableInt	(	IADC_TypeDef *	`iadc,`
		uint32_t	`flags`
	)

inline

Disable one or more IADC interrupts.

Parameters

[in]	`iadc`	Pointer to IADC peripheral register block.
[in]	`flags`	IADC interrupt sources to disable. Use a bitwise logic OR combination of valid interrupt flags for the IADC module (IADC_IF_nnn).

◆ IADC_enableInt()

void IADC_enableInt	(	IADC_TypeDef *	`iadc,`
		uint32_t	`flags`
	)

inline

Enable one or more IADC interrupts.

Note: Depending on the use, a pending interrupt may already be set prior to enabling the interrupt. Consider using IADC_intClear() prior to enabling if such a pending interrupt should be ignored.

Parameters

[in]	`iadc`	Pointer to IADC peripheral register block.
[in]	`flags`	IADC interrupt sources to enable. Use a bitwise logic OR combination of valid interrupt flags for the IADC module (IADC_IF_nnn).

◆ IADC_getInt()

uint32_t IADC_getInt ( IADC_TypeDef * iadc )

inline

Get pending IADC interrupt flags.

Note: The event bits are not cleared by the use of this function.

Parameters

[in] iadc Pointer to IADC peripheral register block.

Returns: IADC interrupt sources pending. A bitwise logic OR combination of valid interrupt flags for the IADC module (IADC_IF_nnn).

◆ IADC_getEnabledInt()

uint32_t IADC_getEnabledInt ( IADC_TypeDef * iadc )

inline

Get enabled and pending IADC interrupt flags.

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

Note: Interrupt flags are not cleared by the use of this function.

Parameters

[in] iadc Pointer to IADC peripheral register block.

Returns

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

the OR combination of enabled interrupt sources in IADCx_IEN_nnn register (IADCx_IEN_nnn) and
the OR combination of valid interrupt flags of the IADC module (IADCx_IF_nnn).

◆ IADC_setInt()

void IADC_setInt	(	IADC_TypeDef *	`iadc,`
		uint32_t	`flags`
	)

inline

Set one or more pending IADC interrupts from SW.

Parameters

[in]	`iadc`	Pointer to IADC peripheral register block.
[in]	`flags`	IADC interrupt sources to set to pending. Use a bitwise logic OR combination of valid interrupt flags for the IADC module (IADC_IF_nnn).

◆ IADC_command()

void IADC_command	(	IADC_TypeDef *	`iadc,`
		IADC_Cmd_t	`cmd`
	)

inline

Start/stop scan sequence, single conversion and/or timer.

Parameters

[in]	`iadc`	Pointer to IADC peripheral register block.
[in]	`cmd`	Command to be performed.

◆ IADC_getScanMask()

uint32_t IADC_getScanMask ( IADC_TypeDef * iadc )

inline

Get the scan mask currently used in the IADC.

Parameters

[in] iadc Pointer to IADC peripheral register block.

Returns: Mask of scan table entries currently included in scan.

◆ IADC_getStatus()

uint32_t IADC_getStatus ( IADC_TypeDef * iadc )

inline

Get status bits of IADC.

Parameters

[in] iadc Pointer to IADC peripheral register block.

Returns: IADC status bits

◆ IADC_getSingleFifoCnt()

uint8_t IADC_getSingleFifoCnt ( IADC_TypeDef * iadc )

inline

Get the number of elements in the IADC single FIFO.

Parameters

[in] iadc Pointer to IADC peripheral register block.

Returns: Number of elements in single FIFO

◆ IADC_getScanFifoCnt()

uint8_t IADC_getScanFifoCnt ( IADC_TypeDef * iadc )

inline

Get the number of elements in the IADC scan FIFO.

Parameters

[in] iadc Pointer to IADC peripheral register block.

Returns: Number of elements in scan FIFO

◆ IADC_portPinToNegInput()

IADC_NegInput_t IADC_portPinToNegInput	(	GPIO_Port_TypeDef	`port,`
		uint8_t	`pin`
	)

inline

Convert the GPIO port/pin to IADC negative input selection.

Parameters

[in]	`port`	GPIO port
[in]	`pin`	GPIO in

Returns: IADC negative input selection

◆ IADC_portPinToPosInput()

IADC_PosInput_t IADC_portPinToPosInput	(	GPIO_Port_TypeDef	`port,`
		uint8_t	`pin`
	)

inline

Convert the GPIO port/pin to IADC positive input selection.

Parameters

[in]	`port`	GPIO port
[in]	`pin`	GPIO in

Returns: IADC positive input selection

Macro Definition Documentation

◆ IADC_INIT_DEFAULT

#define IADC_INIT_DEFAULT

Value:

         {                                                                         \
        
         false,
         
          /* IADC clock not disabled on PRS0*/
         
         \
        
         false,
         
          /* IADC clock not disabled on PRS1 */
         
         \
        
         false,
         
          /* Do not halt during debug */
         
         \
        
         iadcWarmupNormal,
         
          /* IADC shutdown after each conversion. */
         
         \
        
         0,
         
          /* Calculate timebase. */
         
         \
        
         0,
         
          /* Max IADC clock rate. */
         
         \
        
         _IADC_TIMER_TIMER_DEFAULT,
         
          /* Use HW default value. */
         
         \
        
         _IADC_CMPTHR_ADGT_DEFAULT,
         
          /* Use HW default value. */
         
         \
        
         _IADC_CMPTHR_ADLT_DEFAULT,
         
          /* Use HW default value. */
         
         \
        
         }

Default config for IADC init structure.

◆ IADC_CONFIG_DEFAULT

#define IADC_CONFIG_DEFAULT

Value:

         {                                                                       \
        
         iadcCfgModeNormal,
         
          /* Normal mode for IADC. */
         
         \
        
         iadcCfgOsrHighSpeed2x,
         
          /* 2x high speed over sampling. */
         
         \
        
         iadcCfgOsrHighAccuracy92x,
         
          /* 92x high accuracy over sampling. */
         
         \
        
         iadcCfgAnalogGain1x,
         
          /* 1x analog gain. */
         
         \
        
         iadcCfgReferenceInt1V2,
         
          /* Internal 1.2V band gap reference. */
         
         \
        
         iadcCfgTwosCompAuto,
         
          /* Automatic Two's Complement. */
         
         \
        
         0,
         
          /* Max IADC analog clock rate. */
         
         \
        
         1210,
         
          /* Vref expressed in millivolts. */
         
         \
        
         iadcDigitalAverage1
         
          /* No averaging. */
         
         \
        
         }

Default IADC config structure.

◆ IADC_ALLCONFIGS_DEFAULT

#define IADC_ALLCONFIGS_DEFAULT

Value:

         {                             \
        
         {                           \
        
         IADC_CONFIG_DEFAULT,      \
        
         IADC_CONFIG_DEFAULT       \
        
         }                           \
        
         }

Default IADC sructure for all configs.

◆ IADC_INITSCAN_DEFAULT

#define IADC_INITSCAN_DEFAULT

Value:

         {                                                                          \
        
         iadcAlignRight12,
         
          /* Results 12-bit right aligned */
         
         \
        
         false,
         
          /* Do not show ID in result */
         
         \
        
         iadcFifoCfgDvl4,
         
          /* Use HW default value. */
         
         \
        
         false,
         
          /* Do not wake up DMA on scan FIFO DVL */
         
         \
        
         iadcTriggerSelImmediate,
         
          /* Start scan immediately on trigger */
         
         \
        
         iadcTriggerActionOnce,
         
          /* Convert once on scan trigger */
         
         \
        
         false
         
          /* Do not start scan queue */
         
         \
        
         }

Default config for IADC scan init structure.

◆ IADC_INITSINGLE_DEFAULT

#define IADC_INITSINGLE_DEFAULT

Value:

         {                                                                              \
        
         iadcAlignRight12,
         
          /* Results 12-bit right aligned */
         
         \
        
         false,
         
          /* Do not show ID in result */
         
         \
        
         iadcFifoCfgDvl4,
         
          /* Use HW default value. */
         
         \
        
         false,
         
          /* Do not wake up DMA on single FIFO DVL */
         
         \
        
         iadcTriggerSelImmediate,
         
          /* Start single immediately on trigger */
         
         \
        
         iadcTriggerActionOnce,
         
          /* Convert once on single trigger */
         
         \
        
         false,
         
          /* No tailgating */
         
         \
        
         false
         
          /* Do not start single queue */
         
         \
        
         }

Default config for IADC single init structure.

◆ IADC_SINGLEINPUT_DEFAULT

#define IADC_SINGLEINPUT_DEFAULT

Value:

         {                                                           \
        
         iadcNegInputGnd,
         
          /* Negative input GND */
         
         \
        
         iadcPosInputGnd,
         
          /* Positive input GND */
         
         \
        
         0,
         
          /* Config 0 */
         
         \
        
         false
         
          /* Do not compare results */
         
         \
        
         }

Default config for IADC single input structure.

◆ IADC_SCANTABLEENTRY_DEFAULT

#define IADC_SCANTABLEENTRY_DEFAULT

Value:

         {                                              \
        
         iadcNegInputGnd,
         
          /* Negative input GND */
         
         \
        
         iadcPosInputGnd,
         
          /* Positive input GND */
         
         \
        
         0,
         
          /* Config 0 */
         
         \
        
         false,
         
          /* Do not compare results */
         
         \
        
         false
         
          /* Do not include in scan */
         
         \
        
         }

Default config for IADC scan table entry structure.

◆ IADC_SCANTABLE_DEFAULT

#define IADC_SCANTABLE_DEFAULT

Value:

         {                                \
        
         {                              \
        
         IADC_SCANTABLEENTRY_DEFAULT, \
        
         IADC_SCANTABLEENTRY_DEFAULT, \
        
         IADC_SCANTABLEENTRY_DEFAULT, \
        
         IADC_SCANTABLEENTRY_DEFAULT, \
        
         IADC_SCANTABLEENTRY_DEFAULT, \
        
         IADC_SCANTABLEENTRY_DEFAULT, \
        
         IADC_SCANTABLEENTRY_DEFAULT, \
        
         IADC_SCANTABLEENTRY_DEFAULT, \
        
         IADC_SCANTABLEENTRY_DEFAULT, \
        
         IADC_SCANTABLEENTRY_DEFAULT, \
        
         IADC_SCANTABLEENTRY_DEFAULT, \
        
         IADC_SCANTABLEENTRY_DEFAULT, \
        
         IADC_SCANTABLEENTRY_DEFAULT, \
        
         IADC_SCANTABLEENTRY_DEFAULT, \
        
         IADC_SCANTABLEENTRY_DEFAULT, \
        
         IADC_SCANTABLEENTRY_DEFAULT  \
        
         }                              \
        
         }

Default IADC structure for scan table.

Enumeration Type Documentation

◆ IADC_Warmup_t

enum IADC_Warmup_t

Warm-up mode.

Enumerator

iadcWarmupNormal

IADC shutdown after each conversion.

iadcWarmupKeepInStandby

ADC is kept in standby mode between conversion.

iadcWarmupKeepWarm

ADC and reference selected for scan mode kept warmup, allowing continuous conversion.

◆ IADC_Alignment_t

enum IADC_Alignment_t

IADC result alignment.

Enumerator
iadcAlignRight12	IADC results 12-bit right aligned
iadcAlignLeft12	IADC results 12-bit left aligned
iadcAlignRight16	IADC results 16-bit right aligned
iadcAlignLeft16	IADC results 16-bit left aligned
iadcAlignRight20	IADC results 20-bit right aligned
iadcAlignLeft20	IADC results 20-bit left aligned

◆ IADC_NegInput_t

enum IADC_NegInput_t

IADC negative input selection.

Enumerator
iadcNegInputGnd	Ground
iadcNegInputGndaux	Ground using even mux.
iadcNegInputDac1	Direct connection to DAC_1 input pin.
iadcNegInputPadAna1	Direct connection to Pad_ana_1 input pin.
iadcNegInputPortAPin0	GPIO port A pin 0.
iadcNegInputPortAPin1	GPIO port A pin 1.
iadcNegInputPortAPin2	GPIO port A pin 2.
iadcNegInputPortAPin3	GPIO port A pin 3.
iadcNegInputPortAPin4	GPIO port A pin 4.
iadcNegInputPortAPin5	GPIO port A pin 5.
iadcNegInputPortAPin6	GPIO port A pin 6.
iadcNegInputPortAPin7	GPIO port A pin 7.
iadcNegInputPortAPin8	GPIO port A pin 8.
iadcNegInputPortAPin9	GPIO port A pin 9.
iadcNegInputPortAPin10	GPIO port A pin 10.
iadcNegInputPortAPin11	GPIO port A pin 11.
iadcNegInputPortAPin12	GPIO port A pin 12.
iadcNegInputPortAPin13	GPIO port A pin 13.
iadcNegInputPortAPin14	GPIO port A pin 14.
iadcNegInputPortAPin15	GPIO port A pin 15.
iadcNegInputPortBPin0	GPIO port B pin 0.
iadcNegInputPortBPin1	GPIO port B pin 1.
iadcNegInputPortBPin2	GPIO port B pin 2.
iadcNegInputPortBPin3	GPIO port B pin 3.
iadcNegInputPortBPin4	GPIO port B pin 4.
iadcNegInputPortBPin5	GPIO port B pin 5.
iadcNegInputPortBPin6	GPIO port B pin 6.
iadcNegInputPortBPin7	GPIO port B pin 7.
iadcNegInputPortBPin8	GPIO port B pin 8.
iadcNegInputPortBPin9	GPIO port B pin 9.
iadcNegInputPortBPin10	GPIO port B pin 10.
iadcNegInputPortBPin11	GPIO port B pin 11.
iadcNegInputPortBPin12	GPIO port B pin 12.
iadcNegInputPortBPin13	GPIO port B pin 13.
iadcNegInputPortBPin14	GPIO port B pin 14.
iadcNegInputPortBPin15	GPIO port B pin 15.
iadcNegInputPortCPin0	GPIO port C pin 0.
iadcNegInputPortCPin1	GPIO port C pin 1.
iadcNegInputPortCPin2	GPIO port C pin 2.
iadcNegInputPortCPin3	GPIO port C pin 3.
iadcNegInputPortCPin4	GPIO port C pin 4.
iadcNegInputPortCPin5	GPIO port C pin 5.
iadcNegInputPortCPin6	GPIO port C pin 6.
iadcNegInputPortCPin7	GPIO port C pin 7.
iadcNegInputPortCPin8	GPIO port C pin 8.
iadcNegInputPortCPin9	GPIO port C pin 9.
iadcNegInputPortCPin10	GPIO port C pin 10.
iadcNegInputPortCPin11	GPIO port C pin 11.
iadcNegInputPortCPin12	GPIO port C pin 12.
iadcNegInputPortCPin13	GPIO port C pin 13.
iadcNegInputPortCPin14	GPIO port C pin 14.
iadcNegInputPortCPin15	GPIO port C pin 15.
iadcNegInputPortDPin0	GPIO port D pin 0.
iadcNegInputPortDPin1	GPIO port D pin 1.
iadcNegInputPortDPin2	GPIO port D pin 2.
iadcNegInputPortDPin3	GPIO port D pin 3.
iadcNegInputPortDPin4	GPIO port D pin 4.
iadcNegInputPortDPin5	GPIO port D pin 5.
iadcNegInputPortDPin6	GPIO port D pin 6.
iadcNegInputPortDPin7	GPIO port D pin 7.
iadcNegInputPortDPin8	GPIO port D pin 8.
iadcNegInputPortDPin9	GPIO port D pin 9.
iadcNegInputPortDPin10	GPIO port D pin 10.
iadcNegInputPortDPin11	GPIO port D pin 11.
iadcNegInputPortDPin12	GPIO port D pin 12.
iadcNegInputPortDPin13	GPIO port D pin 13.
iadcNegInputPortDPin14	GPIO port D pin 14.
iadcNegInputPortDPin15	GPIO port D pin 15.

◆ IADC_PosInput_t

enum IADC_PosInput_t

IADC positive port selection.

Enumerator
iadcPosInputGnd	Ground
iadcPosInputAvdd	Avdd / 4
iadcPosInputVddio	Vddio / 4
iadcPosInputVss	Vss
iadcPosInputVssaux	Vss
iadcPosInputDvdd	Dvdd / 4
iadcPosInputDecouple	Decouple
iadcPosInputDac0	Direct connection to DAC_0 input pin.
iadcPosInputPadAna0	Direct connection to Pad_ana_0 input pin.
iadcPosInputPortAPin0	GPIO port A pin 0.
iadcPosInputPortAPin1	GPIO port A pin 1.
iadcPosInputPortAPin2	GPIO port A pin 2.
iadcPosInputPortAPin3	GPIO port A pin 3.
iadcPosInputPortAPin4	GPIO port A pin 4.
iadcPosInputPortAPin5	GPIO port A pin 5.
iadcPosInputPortAPin6	GPIO port A pin 6.
iadcPosInputPortAPin7	GPIO port A pin 7.
iadcPosInputPortAPin8	GPIO port A pin 8.
iadcPosInputPortAPin9	GPIO port A pin 9.
iadcPosInputPortAPin10	GPIO port A pin 10.
iadcPosInputPortAPin11	GPIO port A pin 11.
iadcPosInputPortAPin12	GPIO port A pin 12.
iadcPosInputPortAPin13	GPIO port A pin 13.
iadcPosInputPortAPin14	GPIO port A pin 14.
iadcPosInputPortAPin15	GPIO port A pin 15.
iadcPosInputPortBPin0	GPIO port B pin 0.
iadcPosInputPortBPin1	GPIO port B pin 1.
iadcPosInputPortBPin2	GPIO port B pin 2.
iadcPosInputPortBPin3	GPIO port B pin 3.
iadcPosInputPortBPin4	GPIO port B pin 4.
iadcPosInputPortBPin5	GPIO port B pin 5.
iadcPosInputPortBPin6	GPIO port B pin 6.
iadcPosInputPortBPin7	GPIO port B pin 7.
iadcPosInputPortBPin8	GPIO port B pin 8.
iadcPosInputPortBPin9	GPIO port B pin 9.
iadcPosInputPortBPin10	GPIO port B pin 10.
iadcPosInputPortBPin11	GPIO port B pin 11.
iadcPosInputPortBPin12	GPIO port B pin 12.
iadcPosInputPortBPin13	GPIO port B pin 13.
iadcPosInputPortBPin14	GPIO port B pin 14.
iadcPosInputPortBPin15	GPIO port B pin 15.
iadcPosInputPortCPin0	GPIO port C pin 0.
iadcPosInputPortCPin1	GPIO port C pin 1.
iadcPosInputPortCPin2	GPIO port C pin 2.
iadcPosInputPortCPin3	GPIO port C pin 3.
iadcPosInputPortCPin4	GPIO port C pin 4.
iadcPosInputPortCPin5	GPIO port C pin 5.
iadcPosInputPortCPin6	GPIO port C pin 6.
iadcPosInputPortCPin7	GPIO port C pin 7.
iadcPosInputPortCPin8	GPIO port C pin 8.
iadcPosInputPortCPin9	GPIO port C pin 9.
iadcPosInputPortCPin10	GPIO port C pin 10.
iadcPosInputPortCPin11	GPIO port C pin 11.
iadcPosInputPortCPin12	GPIO port C pin 12.
iadcPosInputPortCPin13	GPIO port C pin 13.
iadcPosInputPortCPin14	GPIO port C pin 14.
iadcPosInputPortCPin15	GPIO port C pin 15.
iadcPosInputPortDPin0	GPIO port D pin 0.
iadcPosInputPortDPin1	GPIO port D pin 1.
iadcPosInputPortDPin2	GPIO port D pin 2.
iadcPosInputPortDPin3	GPIO port D pin 3.
iadcPosInputPortDPin4	GPIO port D pin 4.
iadcPosInputPortDPin5	GPIO port D pin 5.
iadcPosInputPortDPin6	GPIO port D pin 6.
iadcPosInputPortDPin7	GPIO port D pin 7.
iadcPosInputPortDPin8	GPIO port D pin 8.
iadcPosInputPortDPin9	GPIO port D pin 9.
iadcPosInputPortDPin10	GPIO port D pin 10.
iadcPosInputPortDPin11	GPIO port D pin 11.
iadcPosInputPortDPin12	GPIO port D pin 12.
iadcPosInputPortDPin13	GPIO port D pin 13.
iadcPosInputPortDPin14	GPIO port D pin 14.
iadcPosInputPortDPin15	GPIO port D pin 15.

◆ IADC_Cmd_t

enum IADC_Cmd_t

IADC Commands.

Enumerator
iadcCmdStartSingle	Start single queue
iadcCmdStopSingle	Stop single queue
iadcCmdStartScan	Start scan queue
iadcCmdStopScan	Stop scan queue
iadcCmdEnableTimer	Enable Timer
iadcCmdDisableTimer	Disable Timer

◆ IADC_CfgAdcMode_t

enum IADC_CfgAdcMode_t

IADC Configuration.

Enumerator
iadcCfgModeNormal	Normal mode
iadcCfgModeHighSpeed	High Speed mode
iadcCfgModeHighAccuracy	High Accuracy mode

◆ IADC_CfgOsrHighSpeed_t

enum IADC_CfgOsrHighSpeed_t

IADC Over sampling rate for high speed.

Enumerator
iadcCfgOsrHighSpeed2x	High speed oversampling of 2x.
iadcCfgOsrHighSpeed4x	High speed oversampling of 4x.
iadcCfgOsrHighSpeed8x	High speed oversampling of 8x.
iadcCfgOsrHighSpeed16x	High speed oversampling of 16x.
iadcCfgOsrHighSpeed32x	High speed oversampling of 32x.
iadcCfgOsrHighSpeed64x	High speed oversampling of 64x.

◆ IADC_CfgOsrHighAccuracy_t

enum IADC_CfgOsrHighAccuracy_t

IADC Over sampling rate for high accuracy.

Enumerator
iadcCfgOsrHighAccuracy16x	High accuracy oversampling of 16x.
iadcCfgOsrHighAccuracy32x	High accuracy oversampling of 32x.
iadcCfgOsrHighAccuracy64x	High accuracy oversampling of 64x.
iadcCfgOsrHighAccuracy92x	High accuracy oversampling of 92x.
iadcCfgOsrHighAccuracy128x	High accuracy oversampling of 128x.
iadcCfgOsrHighAccuracy256x	High accuracy oversampling of 256x.

◆ IADC_CfgAnalogGain_t

enum IADC_CfgAnalogGain_t

IADC Analog Gain.

Enumerator
iadcCfgAnalogGain0P5x	Analog gain of 0.5x.
iadcCfgAnalogGain1x	Analog gain of 1x.
iadcCfgAnalogGain2x	Analog gain of 2x.
iadcCfgAnalogGain3x	Analog gain of 3x.
iadcCfgAnalogGain4x	Analog gain of 4x.

◆ IADC_CfgReference_t

enum IADC_CfgReference_t

IADC Reference.

Enumerator
iadcCfgReferenceInt1V2	Internal 1.2V Band Gap Reference (buffered) to ground.
iadcCfgReferenceExt1V25	External reference (unbuffered) VREFP to VREFN. VEVREF up to AVDD. When inputs are routed to external GPIO pins, the maximum pin voltage is limited to the lower of the IOVDD and AVDD supplies. The internal calibration values correspond to a 1.25V reference, use of other voltages may require recalibration. See AN1189: Incremental Analog to Digital Converter (IADC)
iadcCfgReferenceExt2V5	External reference (unbuffered) VREFP to VREFN. Supports 2.5V in high accuracy mode.
iadcCfgReferenceVddx	VDDX (unbuffered) to ground.
iadcCfgReferenceVddX0P8Buf	0.8 * VDDX (buffered) to ground.

◆ IADC_CfgTwosComp_t

enum IADC_CfgTwosComp_t

IADC Two's complement results.

Enumerator

iadcCfgTwosCompAuto

Automatic.

Single ended => Unipolar, Differential => Bipolar

iadcCfgTwosCompUnipolar

All results in unipolar format.

Negative diff input gives 0 as result.

iadcCfgTwosCompBipolar

All results in bipolar (2's complement) format.

Half range for SE.

◆ IADC_TriggerSel_t

enum IADC_TriggerSel_t

IADC trigger action.

Enumerator
iadcTriggerSelImmediate	Start single/scan queue immediately.
iadcTriggerSelTimer	Timer starts single/scan queue.
iadcTriggerSelPrs0SameClk	PRS0 from timer in same clock group starts single/scan queue
iadcTriggerSelPrs0PosEdge	PRS0 positive edge starts single/scan queue
iadcTriggerSelPrs0NegEdge	PRS0 negative edge starts single/scan queue
iadcTriggerSelLesense	LESENSE starts scan queue

◆ IADC_TriggerAction_t

enum IADC_TriggerAction_t

IADC trigger action.

Enumerator
iadcTriggerActionOnce	Convert single/scan queue once per trigger
iadcTriggerActionContinuous	Convert single/scan queue continuously

◆ IADC_FifoCfgDvl_t

enum IADC_FifoCfgDvl_t

IADC data valid level before requesting DMA transfer.

Enumerator
iadcFifoCfgDvl1	Data valid level is 1 before requesting DMA transfer.
iadcFifoCfgDvl2	Data valid level is 2 before requesting DMA transfer.
iadcFifoCfgDvl3	Data valid level is 3 before requesting DMA transfer.
iadcFifoCfgDvl4	Data valid level is 4 before requesting DMA transfer.
iadcFifoCfgDvl5	Data valid level is 5 before requesting DMA transfer.
iadcFifoCfgDvl6	Data valid level is 6 before requesting DMA transfer.
iadcFifoCfgDvl7	Data valid level is 7 before requesting DMA transfer.

◆ IADC_DigitalAveraging_t

enum IADC_DigitalAveraging_t

IADC digital averaging function.

Enumerator
iadcDigitalAverage1	Average over 1 sample (no averaging).
iadcDigitalAverage2	Average over 2 samples.
iadcDigitalAverage4	Average over 4 samples.
iadcDigitalAverage8	Average over 8 samples.
iadcDigitalAverage16	Average over 16 samples.

IADC - Incremental ADC

Description

Data Structures

Functions

Macros

Enumerations

Function Documentation

◆ IADC_init()

◆ IADC_reset()

◆ IADC_initScan()

◆ IADC_updateScanEntry()

◆ IADC_setScanMask()

◆ IADC_initSingle()

◆ IADC_updateSingleInput()

◆ IADC_calcSrcClkPrescale()

◆ IADC_calcAdcClkPrescale()

◆ IADC_calcTimebase()

◆ IADC_readSingleResult()

◆ IADC_pullSingleFifoResult()

◆ IADC_readScanResult()

◆ IADC_pullScanFifoResult()

◆ IADC_getReferenceVoltage()

◆ IADC_pullSingleFifoData()

◆ IADC_readSingleData()

◆ IADC_pullScanFifoData()

◆ IADC_readScanData()

◆ IADC_clearInt()

◆ IADC_disableInt()

◆ IADC_enableInt()

◆ IADC_getInt()

◆ IADC_getEnabledInt()

◆ IADC_setInt()

◆ IADC_command()

◆ IADC_getScanMask()

◆ IADC_getStatus()

◆ IADC_getSingleFifoCnt()

◆ IADC_getScanFifoCnt()

◆ IADC_portPinToNegInput()

◆ IADC_portPinToPosInput()

Macro Definition Documentation

◆ IADC_INIT_DEFAULT

◆ IADC_CONFIG_DEFAULT

◆ IADC_ALLCONFIGS_DEFAULT

◆ IADC_INITSCAN_DEFAULT

◆ IADC_INITSINGLE_DEFAULT

◆ IADC_SINGLEINPUT_DEFAULT

◆ IADC_SCANTABLEENTRY_DEFAULT

◆ IADC_SCANTABLE_DEFAULT

Enumeration Type Documentation

◆ IADC_Warmup_t

◆ IADC_Alignment_t

◆ IADC_NegInput_t

◆ IADC_PosInput_t

◆ IADC_Cmd_t

◆ IADC_CfgAdcMode_t

◆ IADC_CfgOsrHighSpeed_t

◆ IADC_CfgOsrHighAccuracy_t

◆ IADC_CfgAnalogGain_t

◆ IADC_CfgReference_t

◆ IADC_CfgTwosComp_t

◆ IADC_TriggerSel_t

◆ IADC_TriggerAction_t

◆ IADC_FifoCfgDvl_t

◆ IADC_DigitalAveraging_t