What is a DcmDspRoutine representing in ODX?

Question

In ODX there are many different parameters.

What does a DcmDsp Routine represent?

Answer 1

There is no direct mapping between Autosar DcmDspRoutine and ODX due to the high flexibility in ODX standard - it depends on the specific authoring guideline of the ODX data.

The DcmDspRoutine service (<DIAG-SERVICE>) will be defined in ODX, but the exact loacation, structure and how to find this service depends on the used ODX authoring guideline. ie.

• on which layer of the inheritance hierarchy the elements are located
• if any elements are overwritten/eliminated in the inheritance hierarchy
• there could be one <DIAG-SERVICE> for DcmDspRoutine or there could be one <DIAG-SERVICE> for each DcmDspRoutineIdentifier
• the service could by identified by a specific short-name or by a specific semantic

Below an high-level example how to find the service assuming there is only one <DIAG-SERVICE> for DcmDspRoutine with the semantic "ROUTINE-CONTROL":

+ <DIAG-LAYER-CONTAINER>
  + Collection name of the layers (BASE-VARIANTS/FUNCTIONAL-GROUPS/PROTOCOLS/ECU-VARIANTS)
    + Name of the layer (BASE-VARIANT/FUNCTIONAL-GROUP/PROTOCOL/ECU-VARIANT)
      + <DIAG-DATA-DICTIONARY-SPEC>
        + <TABLES>
          + <TABLE> referenced by a <PARAM>
      + <DIAG-COMMS>
        + <DIAG-SERVICE> with attribute "SEMANTIC" set to "ROUTINE-CONTROL"
          + <REQUEST-REF>
          + <POS-RESPONSE-REFS>
            + <POS-RESPONSE-REF>
      + <REQUESTS>
        + <REQUEST> referenced by a <DIAG-SERVICE>
          + <PARAMS>
            + <PARAM> referencing to a <TABLE>
      + <POS-RESPONSES>
        + <POS-RESPONSE> referenced by a <DIAG-SERVICE>
          + <PARAMS>
            + <PARAM> referencing to a <TABLE>

First the <DIAG-SERVICE> which maps to DcmDspRoutine service need to be found (where the "SEMANTIC" attribute matches to "ROUTINE-CONTROL"). Within the <DIAG-SERVICE> xml node there should be a <REQUEST-REF> child-node (which links to the request for DcmDspRoutine) and one-or-more <POS-RESPONSE-REF> child-nodes (which links to the response for DcmDspRoutine). In the <REQUEST> and the <POS-RESPONSE> xml node, there will be a list of <PARAM> xml nodes - each represents one parameter of the PDU and will link to a <DOP> or <TABLE>. As the DcmDspStartRoutineIn, DcmDspStartRoutineOut, DcmDspRoutineStopIn, DcmDspRoutineStopOut, DcmDspRoutineRequestResOut may differ for different DcmDspRoutineIdentifier, there will be usually a <TABLE> referenced that contains all DcmDspRoutineIdentifier and their corresponding structures.