canMessage - Build CAN message based on user-specified structure

Syntax

Description

message = canMessage(id, extended, datalength) creates and returns a CAN message object, from the raw message information.

message = canMessage(database, messagename) constructs a message using the message definition of the specified message, in the specified database.

Input Arguments

id	The ID of the message that you specify.
extended	Indicates whether the message ID is of standard or extended type. The Boolean value is true if extended or false if standard.
datalength	The length of the data of the message, in bytes. Specify from 0 through 8.
database	Handle to the CAN database containing the message definition.
messagename	The name of the message definition in the database.

Output Arguments

message

The message object returned from the function.

Properties

Data	Set CAN message data
Database	Store CAN database information
Error	CAN message error frame
Extended	Identifier type for CAN message
ID	Identifier for CAN message
Name (Message)	CAN message name
Remote	Specify CAN message remote frame
Signals	Display physical signals defined in CAN message
Timestamp	Display message received timestamp
UserData	Enter custom data

Examples

To construct a CAN message, type:

 message = canMessage(2500, true, 4)

To construct a message using CAN database message definitions, create a database object using the canDatabase function, and then construct your message:

candb = ('c:\database.dbc')
message = canMessage (candb, 'messagename')

See Also

attachDatabase | canDatabase | extractAll | extractRecent | extractTime | pack | unpack

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