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Basic info: 

Setting up a VNC for SVT DAQ work

SVT DAQ system implies running a gui for configuration and data taking. Setting up a VNC can speed up significantly work time. 
It is suggested to setup a VNC server on rdsrv305 as that is directly accessible via internet. 
General informations on how to setup a VNC are given here:
VNC on Unix

This is how you can setup VNC on rdsrv305.

ssh username@rdsrv305.slac.stanford.edu

In the case you don't have access to your home area (try to touch something) try:

kinit
aklog

Then setup a vncserver

vncserver :1 -geometry 2880x1620 # Use whatever resolution your home monitor has

#Fix the permissionsfs setacl ~/.vnc system:slac none
fs setacl ~/.vnc system:authuser noneexit #logout
ssh username@rdsrv305.slac.stanford.edu -L9999:localhost:5901 #port is 590X where X is the monitor number :X
#If you see a black screen with checkmarks to select but you don't see a monitor, take this vncstartup file:
cp ~bareese/.vnc/xstartup ~/.vnc/

You should be able to connect to the vncserver via ssh tunnel through localhost:9999

Basic SVT DAQ instructions for the test bed


Before starting working make sure that the heatsink of the FEB is facing upward and the fan is pointing to it. If the FEB overheats it will reset itself (you will see all the leds halfway up).

Start working/developing:

  • Connect to the rdusr219 machine

  • Setup the general environment: 

    source /u1/hps/setup_env.sh

  • Start the conda environment:

    conda activate rogue-hps-dev-ben

  • Run the software from this folder.

    cd /u1/hps/server/heavy-photon-daq/software/scripts
python SvtDaqGui.py --env SLAC21

    The env command line is to tell which network configuration to load. The network configuration that gets loaded is stored in python/hps/constants.py
    Check the FebLinkStatus. In the RCE test, you should see FebFpga[0] and check the Link[0] state. If False, Read the variables again (click Read). If now True, means we are talking to the Feb. After the link is established one can load the configuration. 


  • Load the configuration for the system configuration (back end: ATCA (advanced telecommunication computing architecture) and front end (FEB+Hybrid+APVs)) . Click on the HpsSvtDaqRoot tab and load settings

    /u1/hps/daq/heavy-photon-daq/software/config/rce-test.yml

    There is a copy of this configuration file in /u1/hps/server/heavy-photon-daq/software/config/


It might be unclear which link channel goes from the RTM to the FEB(s). In the test area, where a single feb is attached to the RTM, one can put in the link map the fill list of RTM channels (12) giving the full list of tuples.
Each index of the list is the feb address of the feb array and in each tuple (X,Y) X is the cob number (0,1) and Y is the link number 0-11.
Example:
Provide

[(0,1),(0,2),...]

To activate all the links and then check which one reads back to True when reading the variables. The channel mapping between the flange boards and the RTM has been performed on 8th April 2021 and is summarised here:
Flange Board to RTM Slow Control Channel Mapping


Setting on the Hybrids

In Variables tab navigate to the FebArray→FebCore→FebConfig and HybridPwrEn the 0 and 1 (the power supply will not be able to sustain 3 hybrids, but should be OK for 2). 
After turning on the Hybrids, load the configuration again to be sure you are sending the right config to them. 

Sending reset commands to the Hybrids

Navigate to "Commands" tab and in PcieTiDtmArray click the sequence:

1) ApvClkAlign     (to set all the APVs to the same phase)
2) ApvReset101.  (reset and start to wait for a trigger signal)


Start local svt data taking

With the hybrids configured and synced. 

1) Go to HpsSvtDaqRoot tab→Browse and then set the name of the file ( it will set the output name with data and time automatically)
2) Cick on Open. You will see File Open → True when ready.
3) Set run Rate to something reasonable (10Hz should be OK)
4) Click on Run State and select "Running". When successfully running you'll see Run Count going up. 
5) When done with local data taking, first set Run State to "Stopped" and Close the file. 


Configuration files used to configure rogue.
The 2019 CODA (central DAQ software at jLab) configuration files for HPS DAQ are stored on jLab machines at

/usr/clas12/release/1.4.0/parms/trigger/HPS/Run2019/

The general configuration for the DAQ usually ends in .trg, the relevant block for SVT is under the #SVT Config block in one of those files.
This should point to something like ..../svt/svt_config.cnf, where the configuration should be pointed. 

To access this information, one needs to ssh to the clonfarm machines. In particular, clonfarm2 and clonfarm3 are the SVT DAQ machines.



Setup of RCE bootloader for diskless booting: (based on this page)

    ssh (or minicom via usb) to DTM (192.168.2.221)

    minicom bay<bay>.<RCE>              (bay is 0-3 <4 is the DTM> and RCE is 0 or 2 <NOT 1>)

    From rdusr219 (with SDK env): cob_rce_reset 192.168.1.254/2/<bay>/<RCE>

    Interrupt boot sequence by pressing any key in minicom

    Apply the default u-boot environment:

        zynq-uboot> env default -a

        zynq-uboot> setenv modeboot nfsboot

        zynq-uboot> setenv bootdelay 3

        zynq-uboot> saveenv

        zynq-uboot> reset



In order to down/upload to github, set up a tunnel between rhel6-64 and rdusr219.  See Proto-DUNE: How to setup a temporary tunnel for github for a recipe.  

The HPS RCEs boot in "diskless mode" via NFS.  For info about this, see RCE Diskless Node (NFS).

RCE network names:

data DPMs: eth1_test_dpm<1-6>

control DPM: eth1_test_dpm7

DTM: eth1_test_dtm1


TO DO:

Upgrade sw to rogue, requires minor tweaks to fw (Ben)

Update to new config format used by rogue (Cameron and Omar)

Switch to JLab supported TI interface to use event builder supported at JLab and respin RTM (Ryan)

Build sw to take event blocks from data DPM fw and build EVIO blocks for CODA (JJ)

Install CODA at SLAC (Cameron and Omar)

Write EPICS sw (Cameron and Omar)


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