Why is my "ethercat.xml" configuration file not downloaded ?

Usually all cards are configured by a .NXD file, which is a configuration database.
In addition, the EtherCat devices are also configurable via a .XML file. The actual version of the VxWorks driver was developed before the XML configuration was indruduced by EtherCAT and
therefore, XML files do not have a build in support in the VxWorls driver.

XML support can easily be added to the driver by adding the following source code line(s):

File: USER_VxWorks.c
Function: USER_GetConfigurationFileCount()

/*****************************************************************************/
/*! Returns the number of firmware files associated with the card/channel,
*   passed as argument.
*   \param ptDevInfo DeviceInfo including channel number, for which the
*                    firmware file count should be read
*   \return number of firmware files, to download. The returned value will
*           be used as a maximum value for ulIdx in calls to
*           USER_GetFirmwareFile                                             */
/*****************************************************************************/
uint32_t USER_GetFirmwareFileCount(PCIFX_DEVICE_INFORMATION ptDevInfo)
{  
  uint32_t ulRet = 0;

  if(NULL != g_szDriverBaseDir)  
  {
    char szDir[CIFX_MAX_FILE_NAME_LENGTH];

    GetChannelDir(szDir, sizeof(szDir), ptDevInfo);

    /* count all .NXF, .NXO files */
    ulRet = GetNumberOfFiles(szDir, ".NXO") +  
            GetNumberOfFiles(szDir, ".NXF") + 
            GetNumberOfFiles(szDir, ".XML");
  }
  return ulRet;
}