ROC Configuration File to User Event

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Here we'll describe the user event 137 structure that contains the configuration files used by the ROCs to initialize various modules and settings. These are inserted at Prestart.

Example User Event 137 Structure

c source code in readout list

 size_t maxsize = 3 * 1024 * 1024;
 int nwords = 0, inum=0;

 UEOPEN(137,BT_BANK,0);

 nwords = rocFile2Event("/daqfs/daq_setups/vtp-mpdro/cfg/davtp3.config",
			 (uint8_t *)rol->dabufp,
			 ROCID, inum++, maxsize);
 rol->dabufp += nwords;
 nwords = rocFile2Event("/daqfs/daq_setups/vtp-mpdro/cfg/pedestals/daq_ped_bb_gem_run10975.dat",
			 (uint8_t *)rol->dabufp,
			 ROCID, inum++, maxsize);
 rol->dabufp += nwords;

 UECLOSE;

hex dump

0x0007A75F   # Length of User Event
0x00891000   # User Event Header ( Tag = 137, num = 0, type = Bank of Banks)
0x00000290   #   Length of Bank
0x00064300   #   Bank Header ( Tag = 6 = ROCID, Num = 0, type = string)
 ....        #     ... file0 dump ...
0x0007A4CC   #   Length of Bank
0x00060301   #   Bank Header ( Tag = 6 = ROCID, Num = 1, type = string)
 ....        #     ... file1 dump ...

xml format

 <!-- ===================== Buffer 3 contains 501600 words (2006400 bytes) ===================== -->

   <!-- header words: 501599, 0x891000 -->
   <event format="evio" count="3" content="bank" data_type="0x10" tag="137" padding="0" num="0" length="501599" ndata="501598">

      <!-- header words: 656, 0x64300 -->
      <bank content="string" data_type="0x3" tag="6" padding="1" num="0" length="656" ndata="1">
         <![CDATA[... file0 dump ...]]>
      </bank>

      <!-- header words: 500940, 0x60301 -->
      <bank content="string" data_type="0x3" tag="6" padding="0" num="1" length="500940" ndata="1">
         <![CDATA[... file1 dump ...]]>
      </bank>
   </event>

   <!-- end buffer 3 -->

 

jeviodmp capture

Jeviodmp.png