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AfdxResizeToken

Valid for: CANoe DE • CANoe:lite DE • CANoe4SW DE • CANoe4SW:lite DE

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Function Syntax

long AfdxResizeToken( long packet, char protocolDesignator[], char tokenDesignator[], long newBitLength );

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Description

This function sets the length of a token. It can only be used with resizable tokens (“header” and “data”). If a token is not resizable, the error code 46-0125 is returned. The main purpose is to create AFDX messages with or without a sequence number field. Calling the function with (n = number of bytes):
  • protocolDesignator = “afdx”
  • tokenDesignator = “data”
  • newBitLength = n*8
Results in a “data” field size of n bytes. Additionally, the sequence number field is located after the data field. Calling the function with (n = number of bytes):
  • protocolDesignator = “udp”
  • tokenDesignator = “data”
  • newBitLength = n*8
Again results in a “data” field size of n bytes. In this case, there is no sequence number field considered.

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Parameters

  • packet: Handle of the message that has been created with AfdxInitPacket.
  • protocolDesignator: Name of the protocol, e.g., “afdx” or “udp”.
  • tokenDesignator: Name of the token, e.g., “data”.
  • newBitLength: New length of the token in bits.

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Return Values

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Example

long packet;
long packetlen = 60;

packet = AfdxInitPacket(0x0a022600, 0xe0e01a0f, 11121, 0x1a0f, 640);
packetlen = sysGetVariableLong("%NODE_NAME%", "OutputPacketLength");

// adapt frame size with an additional seqNo byte
AfdxResizeToken(packet, "afdx", "data", packetlen*8);
AfdxCompletePacket(packet);
AfdxOutputPacket(packet);
AfdxReleasePacket(packet);