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Starting basic parsing
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‎ArrowPoint-CANbus-Test/ArrowPointCANBusTest.csproj

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<Content Include="Test-Data\Configuration\CanConfig.xml">
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<SubType>Designer</SubType>
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</Content>
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<Content Include="Test-Data\Configuration\dbc standard.txt" />
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</ItemGroup>
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<ItemGroup>
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<None Include="packages.config" />
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<None Include="Test-Data\Configuration\WaveSculter.dbc" />
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</ItemGroup>
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<Import Project="$(VSToolsPath)\TeamTest\Microsoft.TestTools.targets" Condition="Exists('$(VSToolsPath)\TeamTest\Microsoft.TestTools.targets')" />
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<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />

‎ArrowPoint-CANbus-Test/Test-Data/Configuration/dbc standard.txt

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# Scope
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This document doesn't claim to specifiy the complete [Vector DBC standard](http://vector.com/vi_candb_en.html)
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# Format description
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`<...>`: Required field
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`[...]`: Optional field
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` | `: Or (eg. <A|B>)
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# Supported Keywords
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## VERSION
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Version identifier of the DBC file.
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Format: `VERSION "<VersionIdentifier>"`
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## BS_
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Bus configuration.
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Format:: `BS_: <Speed>`
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Speed in kBit/s
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## BU_
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List of all CAN-Nodes, seperated by whitespaces.
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## BO_
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Message definition.
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Format: `BO_ <CAN-ID> <MessageName>: <MessageLength> <SendingNode>`
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MessageLength in bytes.
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## SG_
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Signal definition.
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Format: `SG_ <SignalName> [M|m<MultiplexerIdentifier>] : <StartBit>|<Length>@<Endianness><Signed> (<Factor>,<Offset>) [<Min>|<Max>] "[Unit]" [ReceivingNodes]`
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Length in bits.
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Signed: + = unsigned; - = signed
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Endianness: 1 = little-endian, Intel; 0 = big-endian, Motorola
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M: If M than this signals contains a multiplexer identifier.
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MultiplexerIdentifier: Signal definition is only used if the value of the multiplexer signal equals to this value.
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## CM_
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Description field.
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Format: `CM_ [<BU_|BO_|SG_> [CAN-ID] [SignalName]] "<DescriptionText>";`
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## BA_DEF_
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Attribute definition.
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Format: `BA_DEF_ [BU_|BO_|SG_] "<AttributeName>" <DataType> [Config];`
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DataType | Description | Config format
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---------|---------------------|----------------
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INT | integer | `<min> <max>`
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FLOAT | floating point | `<min> <max>`
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STRING | string |
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ENUM | enumeration | `"<Value0>","<Value1>"...`
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## BA_DEF_DEF_
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Attribute default value
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Format: `BA_DEF_DEF_ "<AttributeName>" ["]<DefaultValue>["];`
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## BA_
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Attribute
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Format: `BA_ "<AttributeName>" [BU_|BO_|SG_] [Node|CAN-ID] [SignalName] <AttributeValue>;`
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## VAL_
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Value definitions for signals.
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Format: `VAL_ <CAN-ID> <SignalsName> <ValTableName|ValTableDefinition>;`
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## VAL_TABLE_
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Value table definition for signals.
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Format: `VAL_TABLE_ <ValueTableName> <ValueTableDefinition>;`
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ValueTableDefinition: List of `IntValue "StringValue"` Pairs, seperated by whitespaces
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# Attributes
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In this sections are standard attributes used by [CANpy](https://github.com/stefanhoelzl/CANpy) defined. The attributes can be overwritten within a DBC file.
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## Message Attributes
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### GenMsgSendType
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Defines the send type of a message.
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Supported types:
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* cyclic
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* triggered
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* cyclicIfActive
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* cyclicAndTriggered
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* cyclicIfActiveAndTriggered
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* none
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Definition: `BA_DEF BO_ "GenMsgSendType" ENUM "cyclic","triggered","cyclicIfActive","cyclicAndTriggered","cyclicIfActiveAndTriggered","none"`
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Default: none
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Definition: `BA_DEF_DEF "GenMsgSendType" "none"`
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### GenMsgCycleTime
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Defines the cycle time of a message in ms.
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Definition: `BA_DEF BO_ "GenMsgCycleTime" INT 0 0`
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Default: 0
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Definition: `BA_DEF_DEF "GenMsgCycleTime" 0`
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### GenMsgStartDelayTime
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Defines the allowed delay after startup this message must occure the first time in ms.
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Definition: `BA_DEF BO_ "GenMsgStartDelayTime" INT 0 0`
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Default: 0 (=GenMsgCycleTime)
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Definition: `BA_DEF_DEF "GenMsgStartDelayTime" 0`
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### GenMsgDelayTime
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Defines the allowed delay for a message in ms.
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Definition: `BA_DEF BO_ "GenMsgDelayTime" INT 0 0`
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Default: 0
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Definition: `BA_DEF_DEF "GenMsgDelayTime" 0`
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## Signal Attributes
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### GenSigStartValue
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Defines the value as long as no value is set/received for this signal.
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Definition: `BA_DEF SG_ "GenSigStartValue" INT 0 0`
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Default: 0
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Definition: `BA_DEF_DEF "GenSigStartValue" 0`
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# Sources
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http://pisnoop.s3.amazonaws.com/snoop_help_dbc.htm
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http://www.racelogic.co.uk/_downloads/vbox/Application_Notes/CAN%20Format%20for%20VBOXII%20and%20PRO%20v4.pdf
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https://hackage.haskell.org/package/ecu-0.0.8/src/src/j1939_utf8.dbc
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http://www.ingenieurbuerobecker.de/downloads/CANtool_Manual.pdf

‎ArrowPoint-CANbus-Tools/Services/ConfigService.cs

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}
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public void LoadDBCFile(string filename)
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{
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string[] lines = System.IO.File.ReadAllLines(filename);
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const int VERSION = 0;
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const int BS = 1;
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const int BU = 2;
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const int BO = 3;
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const int SG = 4;
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const int CM = 5;
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const int BA_DEF = 6;
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const int BA_DEF_DEF = 7;
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const int BA = 8;
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const int VAL = 9;
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const int VAL_TABLE = 10;
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int parseState = -1;
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Configuration = new NetworkDefinition();
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foreach (string line in lines)
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{
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int marker = line.IndexOf(' ');
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if (marker < 3) marker = 3;
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string checktag = line.Trim().Substring(0, marker);
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switch (checktag)
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{
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case "VERSION": parseState = VERSION; break;
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case "BS_": parseState = BS; break;
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case "BU_": parseState = BU; break;
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case "BO_": parseState = BO; break;
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case "SG_": parseState = SG; break;
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case "CM_": parseState = CM; break;
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case "BA_DEF_": parseState = BA_DEF; break;
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case "BA_DEF_DEF_": parseState = BA_DEF_DEF; break;
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case "BA_": parseState = BA; break;
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case "VAL_": parseState = VAL; break;
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case "VAL_TABLE_": parseState = VAL_TABLE; break;
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}
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switch (parseState)
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{
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case VERSION: Configuration.Document.version = line.Substring(9); break;
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case BS: Configuration.Bus[0].baudrate = line.Substring(4); break;
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case BU: break;
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case BO: break;
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case SG: break;
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case CM: break;
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case BA_DEF: break;
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case BA_DEF_DEF: break;
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case BA: break;
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case VAL: break;
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case VAL_TABLE: break;
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}
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}
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}
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public List<CanPacket> UnknownCanIds(Bus bus)
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{
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List<CanPacket> unknownPackets = null;

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