IADC - Incremental ADC#

IADC_Warmup_t#

IADC_Warmup_t

Warm-up mode.

IADC_Alignment_t#

IADC_Alignment_t

IADC result alignment.

IADC_NegInput_t#

IADC_NegInput_t

IADC negative input selection.

IADC_PosInput_t#

IADC_PosInput_t

IADC positive port selection.

IADC_Cmd_t#

IADC_Cmd_t

IADC Commands.

IADC_CfgAdcMode_t#

IADC_CfgAdcMode_t

IADC Configuration.

IADC_CfgOsrHighSpeed_t#

IADC_CfgOsrHighSpeed_t

IADC Over sampling rate for high speed.

IADC_CfgAnalogGain_t#

IADC_CfgAnalogGain_t

IADC Analog Gain.

IADC_CfgReference_t#

IADC_CfgReference_t

IADC Reference.

IADC_CfgTwosComp_t#

IADC_CfgTwosComp_t

IADC Two's complement results.

IADC_TriggerSel_t#

IADC_TriggerSel_t

IADC trigger action.

IADC_TriggerAction_t#

IADC_TriggerAction_t

IADC trigger action.

IADC_FifoCfgDvl_t#

IADC_FifoCfgDvl_t

IADC data valid level before requesting DMA transfer.

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.

IADC_reset#

void IADC_reset (IADC_TypeDef * iadc)

Reset IADC to same state as after a HW reset.

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.

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.

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.

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.

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.

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).

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).

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.

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.

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.

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.

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.

Returns

• Scan conversion result struct holding data and id.

IADC_getReferenceVoltage#

uint32_t IADC_getReferenceVoltage (IADC_CfgReference_t reference)

Get reference voltage selection.

Returns

• IADC reference voltage in millivolts.

IADC_pullSingleFifoData#

uint32_t IADC_pullSingleFifoData (IADC_TypeDef * iadc)

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.

Returns

• Single conversion data.

IADC_readSingleData#

uint32_t IADC_readSingleData (IADC_TypeDef * iadc)

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.

Returns

• Single conversion data.

IADC_pullScanFifoData#

uint32_t IADC_pullScanFifoData (IADC_TypeDef * iadc)

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.

Returns

• Scan conversion data.

IADC_readScanData#

uint32_t IADC_readScanData (IADC_TypeDef * iadc)

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.

Returns

• Scan conversion data.

IADC_clearInt#

void IADC_clearInt (IADC_TypeDef * iadc, uint32_t flags)

Clear one or more pending IADC interrupts.

IADC_disableInt#

void IADC_disableInt (IADC_TypeDef * iadc, uint32_t flags)

Disable one or more IADC interrupts.

IADC_enableInt#

void IADC_enableInt (IADC_TypeDef * iadc, uint32_t flags)

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.

IADC_getInt#

uint32_t IADC_getInt (IADC_TypeDef * iadc)

Get pending IADC interrupt flags.

Note

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

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)

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.

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)

Set one or more pending IADC interrupts from SW.

IADC_command#

void IADC_command (IADC_TypeDef * iadc, IADC_Cmd_t cmd)

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

IADC_getScanMask#

uint32_t IADC_getScanMask (IADC_TypeDef * iadc)

Get the scan mask currently used in the IADC.

Returns

• Mask of scan table entries currently included in scan.

IADC_getStatus#

uint32_t IADC_getStatus (IADC_TypeDef * iadc)

Get status bits of IADC.

Returns

• IADC status bits

IADC_getSingleFifoCnt#

uint8_t IADC_getSingleFifoCnt (IADC_TypeDef * iadc)

Get the number of elements in the IADC single FIFO.

Returns

• Number of elements in single FIFO

IADC_getScanFifoCnt#

uint8_t IADC_getScanFifoCnt (IADC_TypeDef * iadc)

Get the number of elements in the IADC scan FIFO.

Returns

• Number of elements in scan FIFO

IADC_portPinToNegInput#

IADC_NegInput_t IADC_portPinToNegInput (GPIO_Port_TypeDef port, uint8_t pin)

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

Returns

• IADC negative input selection

IADC_portPinToPosInput#

IADC_PosInput_t IADC_portPinToPosInput (GPIO_Port_TypeDef port, uint8_t pin)

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

Returns

• IADC positive input selection

IADC_INIT_DEFAULT#

#define IADC_INIT_DEFAULT

Default config for IADC init structure.

IADC_CONFIG_DEFAULT#

#define IADC_CONFIG_DEFAULT

Default IADC config structure.

IADC_ALLCONFIGS_DEFAULT#

#define IADC_ALLCONFIGS_DEFAULT

Default IADC sructure for all configs.

IADC_INITSCAN_DEFAULT#

#define IADC_INITSCAN_DEFAULT

Default config for IADC scan init structure.

IADC_INITSINGLE_DEFAULT#

#define IADC_INITSINGLE_DEFAULT

Default config for IADC single init structure.

IADC_SINGLEINPUT_DEFAULT#

#define IADC_SINGLEINPUT_DEFAULT

Default config for IADC single input structure.

IADC_SCANTABLEENTRY_DEFAULT#

#define IADC_SCANTABLEENTRY_DEFAULT

Default config for IADC scan table entry structure.

IADC_SCANTABLE_DEFAULT#

#define IADC_SCANTABLE_DEFAULT

Default IADC structure for scan table.