DbcDecoder Class Reference

Runtime CAN decoder using prebuilt decode database. More...

#include <dbc_decoder.h>

Public Member Functions
const DecodeFrame *	FindFrame (const DecodeDatabase &database, std::uint32_t canId, bool isExtended) const
	Find frame definition by CAN ID. More...
DecodedFrameValue	Decode (const DecodeDatabase &database, const RawCanFrame &frame) const
	Decode one raw CAN frame. More...

Static Private Member Functions
static bool	ExtractUnsigned (const std::vector< std::uint8_t > &data, const DecodeSignal &signal, std::uint64_t &value)
static bool	ExtractIntel (const std::vector< std::uint8_t > &data, std::uint32_t startBit, std::uint32_t length, std::uint64_t &value)
static bool	ExtractMotorola (const std::vector< std::uint8_t > &data, std::uint32_t startBit, std::uint32_t length, std::uint64_t &value)
static std::int64_t	SignExtend (std::uint64_t value, std::uint32_t bitLength)

Detailed Description

Runtime CAN decoder using prebuilt decode database.

Definition at line 70 of file dbc_decoder.h.

Member Function Documentation

Decode()

DecodedFrameValue DbcDecoder::Decode	(	const DecodeDatabase &	database,
		const RawCanFrame &	frame
	)		const

Decode one raw CAN frame.

Parameters

database	Runtime decode database.
frame	Raw CAN frame.

Returns

Decoded frame value.

Definition at line 31 of file dbc_decoder.cpp.

References RawCanFrame::canId, RawCanFrame::data, DecodedSignalValue::definition, DecodedFrameValue::definition, ExtractUnsigned(), DecodeSignal::factor, FindFrame(), RawCanFrame::isExtended, DecodeSignal::length, DecodeSignal::offset, DecodedSignalValue::physicalValue, DecodedSignalValue::rawValue, DecodedFrameValue::signals, DecodeFrame::signals, Signed, SignExtend(), DecodedSignalValue::valid, DecodedFrameValue::valid, and DecodeSignal::valueType.

Referenced by main().

ExtractIntel()

bool DbcDecoder::ExtractIntel ( const std::vector< std::uint8_t > &  data, std::uint32_t  startBit, std::uint32_t  length, std::uint64_t &  value  )

staticprivate

Definition at line 82 of file dbc_decoder.cpp.

Referenced by ExtractUnsigned().

ExtractMotorola()

bool DbcDecoder::ExtractMotorola ( const std::vector< std::uint8_t > &  data, std::uint32_t  startBit, std::uint32_t  length, std::uint64_t &  value  )

staticprivate

Definition at line 105 of file dbc_decoder.cpp.

Referenced by ExtractUnsigned().

ExtractUnsigned()

bool DbcDecoder::ExtractUnsigned ( const std::vector< std::uint8_t > &  data, const DecodeSignal &  signal, std::uint64_t &  value  )

staticprivate

Definition at line 70 of file dbc_decoder.cpp.

References DecodeSignal::byteOrder, ExtractIntel(), ExtractMotorola(), Intel, DecodeSignal::length, and DecodeSignal::startBit.

Referenced by Decode().

FindFrame()

const DecodeFrame * DbcDecoder::FindFrame	(	const DecodeDatabase &	database,
		std::uint32_t	canId,
		bool	isExtended
	)		const

Find frame definition by CAN ID.

Parameters

database	Runtime decode database.
canId	Normalized CAN ID.
isExtended	true for extended frame.

Returns

Pointer to frame definition or nullptr.

Definition at line 14 of file dbc_decoder.cpp.

References DecodeDatabase::frameIndexByKey, and DecodeDatabase::frames.

Referenced by Decode().

SignExtend()

std::int64_t DbcDecoder::SignExtend ( std::uint64_t  value, std::uint32_t  bitLength  )

staticprivate

Definition at line 144 of file dbc_decoder.cpp.

Referenced by Decode().

---

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

• dbc_decoder.h
• dbc_decoder.cpp