#include <modm/architecture/interface/adc.hpp>

Inheritance diagram for modm::Adc:

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

Static Public Member Functions
template<class... Signals>
static void	connect ()

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

static void	disable ()

static void	startConversion ()

static bool	isConversionFinished ()

static uint16_t	getValue ()

static uint16_t	readChannel (Channel channel)

static bool	setChannel (Channel channel)

static uint8_t	getChannel ()

static void	enableFreeRunningMode ()

static void	disableFreeRunningMode ()

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

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

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

static bool	getInterruptFlag ()
	Read an interrupt flag.

static void	getParameter ()
	returns a parameter

static void	setParameter ()
	sets a parameter

Static Public Attributes
static constexpr uint8_t	Resolution
	describes the maximum resolution in bits

Detailed Description

Basic interface of an ADC.

This interface only provides the very basic common functionality between modules. Therefore for any special operating mode, such as interlaced operation, external trigger options or DMA data management, you must refer to the platform specific documentation.

This interface only allows for synchronous operation:

// read channel 2

uint16_t value = Adc::readChannel(2);

The above code is equivalent to this:

// start a new conversion on channel 3
Adc::setChannel(3);
Adc::startConversion();
 
while(!Adc::isConversionFinished())
    ;
 
// read the converted value
uint16_t value = Adc::getValue();

See also: AdcInterrupt for the asynchronous method.

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 ( )

static

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 void modm::Adc::disableFreeRunningMode ( )

static

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 ( )

static

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 ( )

static

Returns: the currently selected analog channel

static uint16_t modm::Adc::getValue ( )

static

Returns: the most recent result of any conversion

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

static void modm::Adc::initialize ( )

static

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 bool modm::Adc::isConversionFinished ( )

static

Returns: true if all conversion have finished, false otherwise

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

static

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 )

static

Analog channel selection.

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

static void modm::Adc::startConversion ( )

static

starts a conversion on the selected analog channel

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

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

adc.hpp

Public Typedefs

Static Public Member Functions

Static Public Attributes

Detailed Description

Member Function Documentation