Experimental Physics and
Industrial Control System

"Shen, Guobao via Tech-talk" <tech-talk at aps.anl.gov> · Thu, 2 Feb 2023 21:01:20 +0000

That I don't know, but I would guess so.
There is github project with VHDL code by the developer (Jukka), for example:
https://github.com/jpietari/mrf-openevr

On 2/2/23, 2:33 PM, "Evans, Richard K. (GRC-H000)" <richard.k.evans at nasa.gov <mailto:richard.k.evans at nasa.gov>> wrote:

Hi Guobao,

Thanks for the quick reply and the links. Does this mean that the MRF protocol is proprietary to MRI.fi? Can 3rd parties develop I/O devices that interact with the MRF timing system?

Thanks!
/Rich

-----Original Message-----
From: Shen, Guobao <gshen at anl.gov <mailto:gshen at anl.gov>> 
Sent: Thursday, February 2, 2023 3:23 PM
To: Evans, Richard K. (GRC-H000) <richard.k.evans at nasa.gov <mailto:richard.k.evans at nasa.gov>>; tech-talk at aps.anl.gov <mailto:tech-talk at aps.anl.gov>
Subject: [EXTERNAL] Re: looking for a spec for the MRF timing protocol

Rich,
Not sure whether I can remember I have seen a spec of MRF.

We do use its user manual, available from its home page:
https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.mrf.fi%2Findex.php%2Fdownloads%2F101-product-manuals&data=05%7C01%7Crichard.k.evans%40nasa.gov%7C5c8e93b224f34655afe008db055b760e%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C638109662598671759%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=wbLnWDRXFyUlgD0f8vqCSb6Xd6kQ6iHPltnvGLDqea8%3D&reserved=0 <https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.mrf.fi%2Findex.php%2Fdownloads%2F101-product-manuals&amp;data=05%7C01%7Crichard.k.evans%40nasa.gov%7C5c8e93b224f34655afe008db055b760e%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C638109662598671759%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;sdata=wbLnWDRXFyUlgD0f8vqCSb6Xd6kQ6iHPltnvGLDqea8%3D&amp;reserved=0>
More specifically, the one we are using a lot here at APS:
https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.mrf.fi%2Ffw%2FDCManual-191127.pdf&data=05%7C01%7Crichard.k.evans%40nasa.gov%7C5c8e93b224f34655afe008db055b760e%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C638109662598671759%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=6VOBI%2F0sr666hMbrPTOh0wjrCz2l9FG4RTUigGaTFnQ%3D&reserved=0 <https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.mrf.fi%2Ffw%2FDCManual-191127.pdf&amp;data=05%7C01%7Crichard.k.evans%40nasa.gov%7C5c8e93b224f34655afe008db055b760e%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C638109662598671759%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;sdata=6VOBI%2F0sr666hMbrPTOh0wjrCz2l9FG4RTUigGaTFnQ%3D&amp;reserved=0>

Thanks,
Guobao

On 2/2/23, 2:15 PM, "Tech-talk on behalf of Evans, Richard K. (GRC-H000) via Tech-talk" <tech-talk-bounces at aps.anl.gov <mailto:tech-talk-bounces at aps.anl.gov> <mailto:tech-talk-bounces at aps.anl.gov <mailto:tech-talk-bounces at aps.anl.gov>> on behalf of tech-talk at aps.anl.gov <mailto:tech-talk at aps.anl.gov> <mailto:tech-talk at aps.anl.gov <mailto:tech-talk at aps.anl.gov>>> wrote:

Hello,

I'm developing a requirements document for an EPICS-based system and I'd like to include the MRF timing protocol explicitly, however I'm having trouble finding any links to an actual spec for it. I can find lots of folks describing it and presentation their use of it, but I can't find an actual link to where the official MRF spec is hosted. Any thoughts? 

Thanks in advance,
Rich Evans (NASA GRC-ATF)

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System