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Open topic with navigation CAPL Functions » ISO11783 » File Server Interaction Layer (FS IL) » FSIL_OnRequest

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FSIL_OnRequest (Callback)

Valid for: CANoe DE • CANoe4SW DE

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Function Syntax

long FSIL_OnRequest( long rqPGN, long sourceAddr );
long FSIL_OnRequest( long rqPGN, long sourceAddr, long destinationAddress );

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Description

Is called if a request (0xEA00) is received. The return value defines the node reaction to the request.

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Parameters

  • rqPGN: Requested PGN
  • sourceAddr: Source address from which the request was sent
  • destinationAddress: Destination address on which the request was sent

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Return Values

  • 0: Do not respond to the request
  • 1: Request with the message from the Tx list of the node
  • 2: Send a negative acknowledgment (NACK)
  • 3: Send a positive acknowledgment (ACK)

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Example

long FSIL_OnRequest( long rqPGN, long sourceAddr )
{
  switch( rqPGN ) {
  case 0xFF02:
    return 2; // send NACK
  }
  return 1;
}