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Entry  Thu Aug 1 12:12:35 2013, gautam, Update, CDS, New model for endtable PZTs C1ASX_GDS_TP.png
    Reply  Thu Aug 1 13:09:17 2013, gautam, Update, CDS, New model for endtable PZTs-procedure 
    Reply  Thu Aug 1 15:06:59 2013, jamie, Update, CDS, New model for endtable PZTs 
       Reply  Thu Aug 1 15:28:44 2013, gautam, Update, CDS, New model for endtable PZTs-problem solved 
    Reply  Thu Aug 1 20:58:56 2013, gautam, Update, CDS, New model for endtable PZTs-MEDM Screens setup MAIN_SCREEN.pdfMATRICES.pdfLOCKINS.pdfCONTROL_FILTERS.pdf
       Reply  Mon Aug 5 18:18:32 2013, gautam, Update, CDS, Choosing LO Amplitudes and Frequencies  GTR_Power_Spectrum.pdf
          Reply  Mon Aug 5 19:10:01 2013, Koji, Update, CDS, Choosing LO Amplitudes and Frequencies  
             Reply  Tue Aug 6 16:36:51 2013, gautam, Update, CDS, Choosing LO Amplitudes and Frequencies-revised powerSpec0806.pdf
                Reply  Wed Aug 7 23:40:49 2013, gautam, Update, CDS, X-End Green ASS - A first update time-series.pdf
                   Reply  Sat Aug 10 05:53:51 2013, gautam, Update, CDS, X-End Green ASS - Roundup New_ASX_MEDM_MAIN.pdf
                      Reply  Mon Aug 12 12:57:59 2013, Jenne, Update, CDS, X-End Green ASS - Roundup 
                         Reply  Mon Aug 12 13:30:33 2013, Jamie, Update, CDS, X-End Green ASS - Roundup 
Message ID: 8995     Entry time: Mon Aug 12 12:57:59 2013     In reply to: 8993     Reply to this: 8996
Author: Jenne 
Type: Update 
Category: CDS 
Subject: X-End Green ASS - Roundup 

Quote:
  1. The SIMULINK model has been modified to accommodate an option to dither the cavity mirrors and not the PZT mirrors. Details are as follows:
    • I have sent the LO signals (CLK,SIN and COS) from the ASS model to the ASX model via the RFM model. Appropriate changes were made to all these three models, and recompiling and restarting the models was done without issue. The SIN and COS signals are used to demodulate green transmission at the dither frequencies. ***The CLK signal is not required to be sent between models as it is not being used by ASX (I turn the dither ON using the channels already set up for ASS). I realised this a little late, and at present the ASS and RFM models are compiled such that the CLK signal is also sent from ASS to RFM. This can be removed, thus freeing up 4 unnecessary inter-process communication channels. Also, I am not too sure if this is relevant, but the maximum computation time of both the RFM and ASX models seem to have gone up after I added these inter-process communication links.***

    •  

 Getting rid of the LO transmission will certainly help / be good.  After adding these channels, the RFM model is regularly hitting 62usec (out of a max acceptable of 60).

I'm not really sure why the ASS was involved in this.  I feel like it might have been simpler to just do everything in the ASX model, to keep things cleaner.  Also, the IPC blocks for this stuff (in both ASS and ASX) are not on the top level of the model.  I had thought that this was expressly forbidden (although I'm not sure why).  I'm emailing Jamie, to see if he remembers what, if anything, is breakable if the IPC blocks are down a level.

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