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<== Date ==> <== Thread ==>

Subject: RE: New EPICS User Questions: (1) Microcontrollers (2) Data-data pipeline?
From: "Feister, Scott via Tech-talk" <tech-talk at aps.anl.gov>
To: "joel at rtems.org" <joel at rtems.org>
Cc: "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>
Date: Thu, 25 Feb 2021 01:51:42 +0000

Joel, Han, Kay, and Mark,

 

Wow, thanks for those detailed responses! I’m excited to join the EPICS community. Our field of research is just starting to move towards high-repetition-rate experiments. From your responses, EPICS seems like it will be a good fit as we move in that direction.

 

Also, once I’ve tinkered with EPICS for a while and assessed the learning curve, I hope also to get several undergraduate student advisees in Computer Science, IT, and/or Mechatronics Engineering involved. Let me know if you have any student-level resources or student communities for EPICS!

 

Best,

 

Scott

 

From: Joel Sherrill <joel at rtems.org>
Sent: Wednesday, February 24, 2021 3:29 PM
To: Feister, Scott <scott.feister at csuci.edu>
Cc: tech-talk at aps.anl.gov
Subject: Re: New EPICS User Questions: (1) Microcontrollers (2) Data-data pipeline?

 

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On Wed, Feb 24, 2021 at 3:35 PM Feister, Scott via Tech-talk <tech-talk at aps.anl.gov> wrote:

Hi EPICS users,

 

I am beginning to explore the idea of using EPICS as the basis for automated-control data feedback loops in the context of high-intensity-laser plasma experiments. The experimental repetition rates vary between 1 Hz and 1 kHz, depending on the facility. Typical devices in the pipeline include cameras, fast digitizers, slow digitizers, motor controls, oscilloscopes, etc. Recently I have been also been working on developing custom embedded systems based on microcontrollers, that can do some early on-board distributed pre-analysis of data.

 

As I explore EPICS, I have a couple of introductory questions for which I think you could quickly help.

 

  1. Is there support for using microcontrollers as EPICS clients? E.g. ethernet-enabled Arduinos or STM32 Nucleo Boards.

An STM32 running RTEMS is going to give you a solid foundation for EPICS.

 

But I would point out that there are some really great boards out there which are not much more expensive and a lot more powerful. The Pynq-Z2 comes to mind since it is a Zynq (dual core ARM) with Arduino and Pi headers is under USD200 with a full kit and less for the bare board.

 

  1.  
  2. Am I correct in my understanding that EPICS is meant primarily for managing systems data and systems control, rather than the core scientific data from an experiment (e.g. bandwidth-heavy high-speed cameras with 300 Hz image updates, fast digitizers, etc)?
  3. If my understanding is correct, do you know of any similar projects relating to managing the data pipeline for acquisition and storage of high-bandwidth, non-feedback-control scientific data?

 

I'll leave the instruments and EPICS setup to the experts though. :)

 

--joel sherrill

RTEMS  

 

  1.  

 

Thank you!

 

Scott

 

Scott Feister

Assistant Professor, Computer Science

California State University Channel Islands

scott.feister at csuci.edu


Replies:
Re: New EPICS User Questions: (1) Microcontrollers (2) Data-data pipeline? Ralph Lange via Tech-talk
References:
New EPICS User Questions: (1) Microcontrollers (2) Data-data pipeline? Feister, Scott via Tech-talk
Re: New EPICS User Questions: (1) Microcontrollers (2) Data-data pipeline? Joel Sherrill via Tech-talk

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