QtCanBus Namespace

The QtCanBus namespace provides some commons enums that are used in the CAN bus handling part of the QtSerialPort 模块。更多...

头：	#include <QtCanBus>
CMake:	find_package(Qt6 REQUIRED COMPONENTS SerialBus) target_link_libraries(mytarget PRIVATE Qt6::SerialBus)
qmake:	QT += serialbus
Since:	Qt 6.5

类型

enum class	DataFormat { SignedInteger, UnsignedInteger, Float, Double, AsciiString }
enum class	DataSource { Payload, FrameId }
enum class	MultiplexState { None, MultiplexorSwitch, MultiplexedSignal, SwitchAndSignal }
enum class	UniqueId { }

This enum represents the possible data formats. The format defines how the value will be extracted from its source.

常量	值	描述
`QtCanBus::DataFormat::SignedInteger`	`0`	The signal value is a signed integer.
`QtCanBus::DataFormat::UnsignedInteger`	`1`	The signal value is an unsigned integer.
`QtCanBus::DataFormat::Float`	`2`	The signal value is float.
`QtCanBus::DataFormat::Double`	`3`	The signal value is double.
`QtCanBus::DataFormat::AsciiString`	`4`	The signal value is an ASCII string.

This enum represents the placement of the data within the CAN frame.

常量	值	描述
`QtCanBus::DataSource::Payload`	`0`	The data will be extracted from the payload.
`QtCanBus::DataSource::FrameId`	`1`	The data will be extracted from the frame ID.

This enum represents the possible multiplex states of a signal.

常量	值	描述
`QtCanBus::MultiplexState::None`	`0x00`	The signal is not used in multiplexing.
`QtCanBus::MultiplexState::MultiplexorSwitch`	`0x01`	The signal is used as a multiplexor switch, which means that other signals depend on the values of this signal.
`QtCanBus::MultiplexState::MultiplexedSignal`	`0x02`	The signal is multiplexed by some switch, and therefore its value can only be extracted when the switch has a specific value.
`QtCanBus::MultiplexState::SwitchAndSignal`	`MultiplexorSwitch \| MultiplexedSignal`	The multiplexor switch of the signal must have the value that enables us to use this signal. When used, the signal also acts as a multiplexor switch for other multiplexed signals.

Represents a CAN unique identifier. The underlying type is quint32.

An enum is used to avoid implicit conversions to or from unsigned int.