> ## Documentation Index
> Fetch the complete documentation index at: https://notevil.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# CAPLfunctionDiagGetCommParameterFR

# diagGetCommParameter (FlexRay)

[Open topic with navigation](../../../../../CANoeDEFamily.htm#Topics/CAPLFunctions/Diagnostics/Functions/CAPLfunctionDiagGetCommParameterFR.md)

**CAPL Functions** » **Diagnostics** » diagGetCommParameter (FlexRay)

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**Valid for**: CANoe DE

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**Note**: Only available with Option .FlexRay!

## Function Syntax

```plaintext theme={null}
long diagGetCommParameter (char qualifier[]);
```

## Description

Returns the value of a numeric/textual communication parameter of the given or currently active diagnostic description. The values are read from the diagnostic description if they cannot be set in the configuration dialog.

## Parameters

* **qualifier**: Parameters for diagnostics on FlexRay. See [diagGetCommParameter](CAPLfunctionDiagGetCommParameter.md) for parameters that are not FlexRay specific.

### Qualifiers

* **FlexRay.Protocol**: The protocol variant to use.
  * 0: AUTOSAR 2.x
  * rest: reserved for future extensions

* **FlexRay.AddressType**: Using one or two byte addresses?
  * 1: One byte addresses
  * 2: Two byte addresses

* **FlexRay.LocalAddress**: Address of *this* node, i.e. ECU address in ECU simulation, tester address in tester nodes.

* **FlexRay.RemoteAddress**: Address of the target node, i.e. ECU address in tester nodes, tester address in ECU simulation.

* **FlexRay.ConnectionMode**: Control the usage of flow control frames.

  * 1: Unicast
  * 2: Acknowledged Unicast
  * 3: Acknowledged Unicast with Retry
  * rest: reserved

  **Note**: Please refer to the AUTOSAR FlexRay TP specification for details on the parameter value semantics.

* **FlexRay.MessageLength**: Control the TP PDU types used.

  * 1: ISO
  * 2: ISO6
  * 3: L16M
  * 4: L4G
  * rest: reserved

  **Note**: Please refer to the AUTOSAR FlexRay TP specification for details on the parameter value semantics.

* **FlexRay.StMin**: Separation time \[ms]

  **Note**: Please refer to the AUTOSAR FlexRay TP specification for details on the parameter value semantics.

* **FlexRay.BlockSize**: Block size

  **Note**: Please refer to the AUTOSAR FlexRay TP specification for details on the parameter value semantics.

### Configuration of send and receive slots/PDUs

* **FlexRay.LocalStartSlot**: Id of first slot the node sends in

* **FlexRay.LocalCount**: Number of consecutive slots to send in

* **FlexRay.LocalStartCycle**: First cycle to send slots in

* **FlexRay.LocalCycleRepetition**: Cycle spacing to send slots in

* **FlexRay.LocalPayloadLen**: Length of slots to send in

* **FlexRay.RemoteStartSlot**: Id of first slot to receive

* **FlexRay.RemoteCount**: Number of consecutive slots to receive

* **FlexRay.RemoteStartCycle**: First cycle to receive slots in

* **FlexRay.RemoteCycleRepetition**: Cycle spacing of slots to receive

* **FlexRay.RemotePayloadLen**: Length of slots received

## Return Values

[Error code](../CAPLfunctionsDiagnosticsErrorCode.md)

## Example

**Example**: You can find examples for this function in the CAPL callback interface (CCI) reference implementations. See [Diagnostics: Connection of the Communication Layer](../CAPLfunctionsDiagnosticsConnectionCommunicationLayer.md) for details.

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