Here is described the various steps on how to get a new simulink model running on the new PCIX frontend computers (in this work the C1OMC at the 40m).

This writing is an glorified version of R. Wards entry in the 40m ilog ([http://www.ldas-sw.ligo.caltech.edu/ilog/pub/ilog.cgi?group=40m&date_to_view=11/06/2006&anchor_to_scroll_to=2006:11:06:17:34:27-rward entry]).

Directory structure

• advLigo/
  • This is the top working/modeling directory at a location to your taste.
• /cvs/cds/caltech/target/c1omc/
  • This is the frontend executable directory with the .rtl files.
• /cvs/cds/caltech/chans/param/
  • This is the C1OMC .. directory on the PCIX frontend computer.
• /cvs/cds/caltech/chans/daq/
  • This is the C1

Simulink model

Get the latest CVS code from (...) and place it in a suitable directory to work in. There are a few special Simulink modules for the ADC and DAC, LIGO filter modules, etc. which are required.

You can modify the Simulink model 'omc.mdl' appropriately. Make sure you have the correct dcuid number, as it could be wrong in CVS. For more info on this see [http://www.ligo.caltech.edu/%7Eaivanov/daq_handbook.html LIGO Data Acquisition Handbook], not sure how relevant this is to the C1OMC system.

The Simulink model can only have a three (3) character file name, which usually correspond to the system name here 'omc'. Also, the model itself can only be 1 layer deep (due to current restrictions). This means that in your Simulink model you have a top-layer, and you are only allowed to place a sub-layer in your model. You can have multiple sub-layers in your top-layer.

Make the FE code

To make the real-time linux executable, go to the top directory (advLigo/) and type 'make omc'. Where

remove the old target directories (c1omc and c1omcepics)

copy the advLigo/target/omcepics to /cvs/cds/caltech/target/c1omcepics