Skip to main content
Open topic with navigation CAPL Functions » LIN » linSetExpectedRespLength

​
linSetExpectedRespLength

Valid for: CANoe DE

​
Function Syntax

long linSetExpectedRespLength(long frameID, long numberOfBytes);

​
Description

This function can be used to configure how many data bytes of the frame response will be expected on reception. Reception of a LIN frame with a number of data bytes deviant from the expected number of bytes will lead to either a CRC error (if more bytes were received than expected) or a RcvError (if less bytes were received than expected). The actual length of frames transmitted on the bus will remain unchanged. Note: A channel receiving a LIN response can be reconfigured, using linSetExpectedRespLength, to accept a LIN frame with a differing DLC from what was initially configured (e.g. by the LDF database). To change the maximum number of bytes transmitted, use linSetRespLength. linSetRespLength and linSetExpectedRespLength cannot be used together to correctly reconfigure a LIN frame to be sent with a different length. Use output(linFrame) for this purpose. Note: Use this function (as well as linSetRespLength) with care, because it is possible to get the LIN interface stuck in configurations which aren’t easy to resolve. It’s not recommended to use linSetRespLength and linSetExpectedRespLength in combination on the same channel.

​
Parameters

  • frameID: Identifier of the LIN frame to be configured.
    Value range: 0…63
  • numberOfBytes: Number of expected data bytes (excluding the CRC byte).
    Value range: 1..8

​
Return Values

On success, returns 1, otherwise 0.

​
Example

—