[Dsg-hallc_nps] [EXTERNAL] NPS LED/VLD controller specs/information/summary

[Bryan Moffit]

Hi Aaron.

I think there was initially some misunderstanding with regard to the 
EPICS driver.

 From the meeting last Friday, I had agreed to work on it.

There's common procedures used in the EPICS and script applications that 
can be absorbed into the VLD library.

I will also try to work with your group to resolve issues with running a 
softIOC on the Linux VME Controllers (unless there is a more compatible 
solution).

On 22-Nov-22 5:36 PM, Aaron Brown wrote:
> Hi Brad,
> 
> Brian will be on vacation from 11/24/2022 until 01/03/2023.
> He will begin working on the control scripts that utilize the existing 
> Linux drivers and is confident that this can be completed by early 
> January 2023.
> With regards to the "Beta quality GUI", the EPICS drivers would need to 
> be completed before we could finish this.
> The layout of the GUI is done, we just need the PVs before we can move 
> to the testing/debugging phase.
> for the EPICS drivers, it would be a good idea to see if someone from 
> the FE/DAQ group could complete the task.
> 
> Happy Thanksgiving!
> 
> -- Aaron
> ------------------------------------------------------------------------
> *From:* Brad Sawatzky <brads at jlab.org>
> *Sent:* Monday, November 21, 2022 6:42 PM
> *To:* Bryan Moffit <moffit at jlab.org>; dsg-hallc_nps at jlab.org 
> <dsg-hallc_nps at jlab.org>
> *Cc:* Brian Eng <beng at jlab.org>; Aaron Brown <ambrown at jlab.org>; William 
> Gu <jgu at jlab.org>; Chris Cuevas <cuevas at jlab.org>; Robert Michaels 
> <rom at jlab.org>
> *Subject:* [EXTERNAL] NPS LED/VLD controller specs/information/summary
> After recent discussions with Bryan and William, I volunteered to send
> out a status/summary on the NPS LED/VLD needs for the near (Dec/Jan)
> and medium term (Feb/Mar).
> 
> 
> - Operational specs for the LED pulser are in William's directories.
>    - His software libraries and test code can be found here:
>         /group/da/distribution/coda/Hardwaremanual/VLD/
>      or from the CODA web page.  The test software can be accessed from
>         /daqfs/home/jgu/Triggersoftware/trigger.c, VLDtestN functions.
>    There are docx files in the /group directory with specs and technical
>    details.  Ideally we would be running the software under linux (intel
>    vme computer), so any vxworks specific code should be updated to
>    compile in that environment.
>    - I am attaching what I think is the most recent spec document for
>      easy access:  'VLD.docx'
> 
> - A Control/GUI requirements summary is attached as a text file.
>    - See: 'LED-GUI-summary-21Nov2022.txt'
> 
> - Here is a link to some (intel controller) development code from Bryan
>    Moffit: 
> https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_JeffersonLab_vld&d=DwIDAw&c=CJqEzB1piLOyyvZjb8YUQw&r=TkJUDpm1-rWCci4nhe47n5XMOLWvRg1TNSqSgPyxyhs&m=1N3fMPIfm78FoxmXp_mXreXU8E0U2i30VAPa6A-PqDvhIBy5Wm1U9gzMBHv6iWyH&s=B6Fs97LKHZhH97IC2bajCCDXfhExhHaLYIvGerKATkM&e= <https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_JeffersonLab_vld&d=DwIDAw&c=CJqEzB1piLOyyvZjb8YUQw&r=TkJUDpm1-rWCci4nhe47n5XMOLWvRg1TNSqSgPyxyhs&m=1N3fMPIfm78FoxmXp_mXreXU8E0U2i30VAPa6A-PqDvhIBy5Wm1U9gzMBHv6iWyH&s=B6Fs97LKHZhH97IC2bajCCDXfhExhHaLYIvGerKATkM&e=>
> 
> 
> ---------------------------------------------
> Near Term Requirements (ie. late-Dec/early-January)
> ---------------------------------------------
> - We don't need a full working GUI, but we do need a clear, student-
>    accessible way to run specific tests.
>    * I am imagining a set of pre-compiled, special-case binaries or
>      script(s) that are run from a command-line running on the VME
>      contoller(s)
> 
> - The scripts should be able to do the following:
>    A.  Turn all LED on in bleach mode
>      * This should also set the Trg_out NIM ouput logic HI *first*
>        and that needs to be tied into the HV interlock circuit.
> 
>    B.  Pulse one or more specified LEDs when a pulse is seen on the VLD
>        Trg/Clk input.
>        - The list of LEDs to be activated, pulse characteristics, etc can
>          either be hardcoded, or read-in via a config file.  Doesn't have
>          to be perfect, just needs to work.  We can fine-tune later.
> 
> 
> ---------------------------------------------
> 'Beta' quality GUI (Feb, early-March)
> ---------------------------------------------
> - NPS installation begins this spring -- that will come very soon!
> 
> * We will need at least a 'beta' quality (ie. feature complete, but may
>    be buggy) GUI by Feb/early-March so we can test and fix bugs before
>    the systems is disassembled and moved to the Hall.  It will be a while
>    before it is working again in the Hall and we definitely do not want
>    to leave testing this critical system to the summer.
> 
> -- Brad
> 
> -- 
> Brad Sawatzky (he/him), PhD <brads at jlab.org> -<>- Jefferson Lab/SciComp/F272
> Ph: 757-269-5947  -<>-  Fax: 757-269-5235  -<>- Pager: brads-page at jlab.org
> The most exciting phrase to hear in science, the one that heralds new
>    discoveries, is not "Eureka!" but "That's funny..."   -- Isaac Asimov