#include <modm/platform/adc/adc_interrupt_2.hpp>

Inheritance diagram for modm::platform::AdcInterrupt2:

Public Typedefs
typedef uint8_t	Channel
	this type may also be an enum or enum class

Public Types
enum	CalibrationMode : uint32_t { SingleEndedInputsMode = 0, DifferntialInputsMode = ADC_CR_ADCALDIF, DoNotCalibrate = 0xff }

enum	Channel : uint8_t { Channel1 = 1, Channel2 = 2, Channel3 = 3, Channel4 = 4, Channel5 = 5, Channel6 = 6, Channel7 = 7, Channel8 = 8, Channel9 = 9, Channel10 = 10, Channel11 = 11, Channel12 = 12, Channel13 = 13, Channel14 = 14, Channel15 = 15, Channel16 = 16, Dac1 = 17, Dac2 = 18 }
	Channels, which can be used with this ADC.

enum	ClockMode : uint32_t { DoNotChange = 0xff, Asynchronous = 0, SynchronousPrescaler1 = ADC_CCR_CKMODE_0, SynchronousPrescaler2 = ADC_CCR_CKMODE_1, SynchronousPrescaler4 = ADC_CCR_CKMODE_1 \| ADC_CCR_CKMODE_0 }

enum	ClockSource : uint32_t { NoClock = 0, PllSai1 = RCC_CCIPR_ADCSEL_0, PllSai2 = RCC_CCIPR_ADCSEL_1, SystemClock = RCC_CCIPR_ADCSEL_1 \| RCC_CCIPR_ADCSEL_0 }

enum	DmaMode : uint32_t { Disabled = 0, OneShot = ADC_CFGR_DMAEN, Circular = ADC_CFGR_DMACFG \| ADC_CFGR_DMAEN, Mask = Circular }

enum	Interrupt : uint32_t { Ready = ADC_IER_ADRDYIE, EndOfSampling = ADC_IER_EOSMPIE, EndOfRegularConversion = ADC_IER_EOCIE, EndOfRegularSequenceOfConversions = ADC_IER_EOSIE, Overrun = ADC_IER_OVRIE, EndOfInjectedConversion = ADC_IER_JEOCIE, EndOfInjectedSequenceOfConversions = ADC_IER_JEOSIE, AnalogWatchdog1 = ADC_IER_AWD1IE, AnalogWatchdog2 = ADC_IER_AWD2IE, AnalogWatchdog3 = ADC_IER_AWD3IE, InjectedContextQueueOverflow = ADC_IER_JQOVFIE }

enum	InterruptFlag : uint32_t { Ready = ADC_ISR_ADRDY, EndOfSampling = ADC_ISR_EOSMP, EndOfRegularConversion = ADC_ISR_EOC, EndOfRegularSequenceOfConversions = ADC_ISR_EOS, Overrun = ADC_ISR_OVR, EndOfInjectedConversion = ADC_ISR_JEOC, EndOfInjectedSequenceOfConversions = ADC_ISR_JEOS, AnalogWatchdog1 = ADC_ISR_AWD1, AnalogWatchdog2 = ADC_ISR_AWD2, AnalogWatchdog3 = ADC_ISR_AWD3, InjectedContextQueueOverflow = ADC_ISR_JQOVF, All = ADC_ISR_ADRDY \| ADC_ISR_EOSMP \| ADC_ISR_EOC \| ADC_ISR_EOS \| ADC_ISR_OVR \| ADC_ISR_JEOC \| ADC_ISR_JEOS \| ADC_ISR_AWD1 \| ADC_ISR_AWD2 \| ADC_ISR_AWD3 \| ADC_ISR_JQOVF }

enum	Prescaler : uint32_t { Disabled = 0, Div1 = 0, Div2 = ADC_CCR_PRESC_0, Div4 = ADC_CCR_PRESC_1, Div6 = ADC_CCR_PRESC_1 \| ADC_CCR_PRESC_0, Div8 = ADC_CCR_PRESC_2, Div10 = ADC_CCR_PRESC_2 \| ADC_CCR_PRESC_0, Div12 = ADC_CCR_PRESC_2 \| ADC_CCR_PRESC_1, Div16 = ADC_CCR_PRESC_2 \| ADC_CCR_PRESC_1 \| ADC_CCR_PRESC_0, Div32 = ADC_CCR_PRESC_3, Div64 = ADC_CCR_PRESC_3 \| ADC_CCR_PRESC_0, Div128 = ADC_CCR_PRESC_3 \| ADC_CCR_PRESC_1, Div256 = ADC_CCR_PRESC_3 \| ADC_CCR_PRESC_1 \| ADC_CCR_PRESC_0, Div256AllBits = ADC_CCR_PRESC_3 \| ADC_CCR_PRESC_2 \| ADC_CCR_PRESC_1 \| ADC_CCR_PRESC_0 }

enum	SampleTime : uint8_t { Cycles2 = 0b000, Cycles7 = 0b001, Cycles13 = 0b010, Cycles25 = 0b011, Cycles48 = 0b100, Cycles93 = 0b101, Cycles248 = 0b110, Cycles641 = 0b111 }

enum	VoltageRegulatorState : uint32_t { Enabled = ADC_CR_ADVREGEN }

Public Member Functions
	MODM_FLAGS32 (Interrupt)

	MODM_FLAGS32 (InterruptFlag)

Static Public Member Functions
static void	attachInterruptHandler (Handler handler)

static void	acknowledgeInterruptFlags (const InterruptFlag_t flags)

static void	calibrate (const CalibrationMode mode, const bool blocking=true)

template<class... Signals>
static void	connect ()

static volatile uint32_t *	dataRegister ()

static void	disable (const bool blocking=true)

static void	disableInterrupt (const Interrupt_t interrupt)

static void	enableInterrupt (const Interrupt_t interrupt)

static void	enableInterruptVector (const uint32_t priority, const bool enable=true)

static auto	getInjectedConversionValue (uint8_t index)

static InterruptFlag_t	getInterruptFlags ()

template<class Gpio >
static constexpr Channel	getPinChannel ()
	Get the channel for a Pin.

static auto	getValue ()

static void	initialize (const ClockMode clk=ClockMode::DoNotChange, const ClockSource clk_src=ClockSource::SystemClock, const Prescaler pre=Prescaler::Disabled, const CalibrationMode cal=CalibrationMode::DoNotCalibrate, const bool blocking=true)

static bool	isConversionFinished ()

static bool	isConversionSequenceFinished ()

static bool	isInjectedConversionFinished ()

static bool	isReady ()

static bool	setChannel (const Channel channel, const SampleTime sampleTime=static_cast< SampleTime >(0b000))

static bool	setChannelSequence (std::span< const SequenceChannel > sequence)

static void	setDmaMode (DmaMode mode)

static void	setFreeRunningMode (const bool enable)

static bool	setInjectedConversionChannel (uint8_t index, Channel channel, SampleTime sampleTime)

template<class Gpio >
static bool	setInjectedConversionChannel (uint8_t index, SampleTime sampleTime)

static bool	setInjectedConversionSequenceLength (uint8_t length)

static void	setLeftAdjustResult (const bool enable)

template<class Gpio >
static bool	setPinChannel (SampleTime sampleTime=static_cast< SampleTime >(0b000))
	Setting the channel for a Pin.

static void	setPrescaler (const Prescaler pre)

static void	startConversion ()

static void	startInjectedConversionSequence ()

static void	stopConversion ()

static void	acknowledgeInterruptFlag ()

template<uint64_t available, uint64_t requested, percent_t tolerance>
static void	assertBaudrateInTolerance ()

template<double available, double requested, percent_t tolerance>
static void	assertDurationInTolerance ()

static void	configurePurpose ()
	configures a peripheral for a specific purpose

template<class... Signals>
static void	connect ()

static void	disable ()

static void	disableFreeRunningMode ()

static void	enableFreeRunningMode ()

static uint8_t	getChannel ()

static bool	getInterruptFlag ()
	Read an interrupt flag.

static void	getParameter ()
	returns a parameter

static uint16_t	getValue ()

template<class SystemClock , frequency_t frequency = 200_kHz, percent_t tolerance = 10_pct>
static void	initialize ()

static bool	isConversionFinished ()

static uint16_t	readChannel (Channel channel)

static bool	setChannel (Channel channel)

static void	setLeftAdjustResult ()
	Change the presentation of the ADC conversion result to left adjusted.

static void	setParameter ()
	sets a parameter

static void	setRightAdjustResult ()
	Change the presentation of the ADC conversion result to right adjusted.

static void	startConversion ()

Static Public Attributes
static Handler	handler

static constexpr uint8_t	Resolution = 12

static constexpr uint8_t	Resolution
	describes the maximum resolution in bits

Protected Typedefs
typedef void (*	Handler) ()

Detailed Description

ADC Interrupt module

This class allows you to attach functions to the ADC Conversion Complete Interrupt via function pointers. Be aware however, that this implementation is slower and requires more resources than writing the function code directly into the interrupt service routines.

See also: AnalogSensors uses this implemenation.

Author: Niklas Hauser

Member Function Documentation

static void modm::PeripheralDriver::acknowledgeInterruptFlag ( )

inheritedstatic

Acknowledge an interrupt flag.

We use acknowledge here, since it describes the intention rather than the actual implementation.

template<uint64_t available, uint64_t requested, percent_t tolerance>

static void modm::PeripheralDriver::assertBaudrateInTolerance ( )

inheritedinlinestatic

Since baudrates are usually generated by prescaling a system clock, only several distinct values can be generated. This method checks if the user requested baudrate is within error tolerance of the system achievable baudrate.

template<class... Signals>

static void modm::Adc::connect ( )

inheritedstatic

Configures the input signals and connects them.

Template Parameters

Signals At least one input signal is required and can be passed out-of-order.

static volatile uint32_t* modm::platform::Adc2::dataRegister ( )

inheritedinlinestatic

Returns: ADC data register pointer, for DMA use only.

static void modm::Adc::disableFreeRunningMode ( )

inheritedstatic

Disables free running mode

The ADC will do only one sample and stop. The result will be in the ADC register.

static void modm::Adc::enableFreeRunningMode ( )

inheritedstatic

Enables free running mode

The ADC will continously start conversions and provide the most recent result in the ADC register.

static uint8_t modm::Adc::getChannel ( )

inheritedstatic

Returns: the currently selected analog channel

static auto modm::platform::Adc2::getInjectedConversionValue ( uint8_t index )

inheritedinlinestatic

Get result of injected conversion.

Precondition: The injected conversion sequence is completed.

static uint16_t modm::Adc::getValue ( )

inheritedstatic

Returns: the most recent result of any conversion

static auto modm::platform::Adc2::getValue ( )

inheritedinlinestatic

Returns: The most recent result of the ADC conversion.

Precondition: A conversion should have been started with startConversion()

To have a blocking GET you might do it this way:

while(!isConversionFinished())
{
   // Waiting for conversion
}

template<class SystemClock , frequency_t frequency = 200_kHz, percent_t tolerance = 10_pct>

static void modm::Adc::initialize ( )

inheritedstatic

Initializes the hardware and sets the datarate.

Template Parameters

SystemClock	the currently active system clock
frequency	the desired clock frequency in Hz
tolerance	the allowed relative tolerance for the resulting clock frequency

static void modm::platform::Adc2::initialize	(	const ClockMode	clk = `ClockMode::DoNotChange`,
		const ClockSource	clk_src = `ClockSource::SystemClock`,
		const Prescaler	pre = `Prescaler::Disabled`,
		const CalibrationMode	cal = `CalibrationMode::DoNotCalibrate`,
		const bool	blocking = `true`
	)

inheritedinlinestatic

Initialize and enable the A/D converter.

Enables the ADC clock and switches on the ADC. The ADC clock prescaler will be set as well.

The ADC can be clocked

Parameters

clk	Clock Mode for ADC1/ADC2 or ADC3/ADC4. Set to ClockMode::DoNotChange or leave blank if you want to leave this setting untouched.
pre	The prescaler for the asynchronous ADC clock. This parameter is only taken into account if clk == ClockMode::Asynchronous.

static bool modm::Adc::isConversionFinished ( )

inheritedstatic

Returns: true if all conversion have finished, false otherwise

static bool modm::platform::Adc2::isConversionFinished ( )

inheritedinlinestatic

Returns: If the conversion is finished.

Precondition: A conversion should have been started with startConversion()

static bool modm::platform::Adc2::isInjectedConversionFinished ( )

inheritedinlinestatic

Returns: If the injected conversion sequence is finished.

Precondition: An injected conversion should have been started with startInjectedConversionSequence()

static bool modm::platform::Adc2::isReady ( )

inheritedinlinestatic

Returns true if the ADRDY bit of the ISR is set

static uint16_t modm::Adc::readChannel ( Channel channel )

inheritedstatic

Convenience function:

set the channel
starts the conversion
waits until conversion is complete
Returns
result of the conversion

static bool modm::Adc::setChannel ( Channel channel )

inheritedstatic

Analog channel selection.

Returns: true if the channel exists and was available, false otherwise

static bool modm::platform::Adc2::setChannel	(	const Channel	channel,
		const SampleTime	sampleTime = `static_cast< SampleTime >(0b000)`
	)

inheritedinlinestatic

Analog channel selection.

This not for scan mode. The number of channels will be set to 1, the channel selected and the corresponding pin will be set to analog input. If the the channel is modified during a conversion, the current conversion is reset and a new start pulse is sent to the ADC to convert the new chosen channnel / group of channels.

Parameters

channel	The channel which shall be read.
sampleTime	The sample time to sample the input voltage.

Precondition: The ADC clock must be started and the ADC switched on with initialize()

static void modm::platform::Adc2::setFreeRunningMode ( const bool enable )

inheritedinlinestatic

Enables free running mode

The ADC will continously start conversions and provide the most recent result in the ADC register.

Precondition: The ADC clock must be started and the ADC switched on with initialize()

static bool modm::platform::Adc2::setInjectedConversionChannel	(	uint8_t	index,
		Channel	channel,
		SampleTime	sampleTime
	)

inheritedinlinestatic

index Index of injected conversion in sequence (0..3)
Returns
true if configuration is successful, false if arguments are invalid

template<class Gpio >

static bool modm::platform::Adc2::setInjectedConversionChannel	(	uint8_t	index,
		SampleTime	sampleTime
	)

inheritedinlinestatic

index Index of injected conversion in sequence (0..3)
Returns
true if configuration is successful, false if arguments are invalid

static bool modm::platform::Adc2::setInjectedConversionSequenceLength ( uint8_t length )

inheritedinlinestatic

length Length of injected conversion sequence (1..4)
Returns
true if configuration is successful, false if arguments are invalid

static void modm::platform::Adc2::setLeftAdjustResult ( const bool enable )

inheritedinlinestatic

Change the presentation of the ADC conversion result.

Parameters

enable Set to true to left adjust the result. Otherwise, the result is right adjusted.

Precondition: The ADC clock must be started and the ADC switched on with initialize()

static void modm::platform::Adc2::setPrescaler ( const Prescaler pre )

inheritedinlinestatic

Select the frequency of the clock to the ADC. The clock is common for ADC1/ADC2 and ADC3/ADC4.

Precondition: The PLL must be running.

Parameters

prescaler The prescaler specifies by which factor the system clock will be divided.

static void modm::Adc::startConversion ( )

inheritedstatic

starts a conversion on the selected analog channel

Precondition: A channel must be selected with setChannel().

static void modm::platform::Adc2::startConversion ( )

inheritedinlinestatic

Start a new conversion or continuous conversions.

Precondition: A ADC channel must be selected with setChannel().

Postcondition: The result can be fetched with getValue()

TODO: is there any limitation to when is can be called??

static void modm::platform::Adc2::startInjectedConversionSequence ( )

inheritedinlinestatic

Start a new injected conversion sequence.

Precondition: Channels must be selected with setInjectedConversionChannel().

The documentation for this class was generated from the following files:

adc_interrupt_2.hpp
adc_interrupt_2.cpp

Public Typedefs

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Typedefs

Detailed Description

Member Function Documentation