Using DP97 instrument support in an application

Several files need minor modifications to use DP97 instrument support in an application.

  1. Add the full path to the DP97 support directory to the application configure/RELEASE file:
    DP97=xxxx/modules/instrument/dp97/<release>
    Where <release> is the release number of of the DP97 support.
  2. Add instrument support to application database definition file
    The application database definition file must include the database definition files for the DP97 instrument and for any needed ASYN drivers. There are two ways that this can be done:
  3. Add the DP97 support libraries to the application
    You must link the DP97 support library and the ASYN support library with the application. Add the following lines:
    xxx_LIBS += devDP97
    xxx_LIBS += asyn
    before the
    xxx_LIBS += $(EPICS_BASE_IOC_LIBS)
    in the application Makefile.
  4. Load the DP97 support database records in the application startup script:
    cd $(DP97)      (cd DP97 if using the vxWorks shell)
    dbLoadRecords("db/devDP97.db,"P=<P>,R=<R>,L=<L>,A=-1")
    You'll have to provide appropriate values for the PV name prefixes (<P> and <R>) and the link number (<L>). The link number must match the value specified in the ASYN drvxxxxxConfigure command.

Installation and Building

After obtaining a copy of the distribution, it must be installed and built for use at your site.
  1. Create an installation directory for the module. The path name of this directory should end with modules/instrument/dp97.
  2. Place the distribution file into this directory.
  3. Execute the following commands:
    cd modules/instrument/dp97
    gunzip dp97<release>.tar.gz
    tar xvf dp97<release>.tar
    cd <release>
    Where <release> is the release number of of the DP97 support.
  4. Edit the configure/RELEASE file and set the paths to your installation of EPICS base and ASYN.
  5. Execute make in the top level directory.