sPHENIX MAPS tracker discussion

["Schambach, Jo" <schambachjj AT ornl.gov>]

Thanks so much for looking into that and resolving it
Jo

--
Joachim Schambach
Oak Ridge National Laboratory
PO Box 2008
Bldg. 6000, MS 6368, Rm 205-C
Oak Ridge, TN 37831-6368
Phone: (865) 341-0694
Email: schambachjj AT ornl.gov

-----Original Message-----
From: sPHENIX-MAPS-l <sphenix-maps-l-bounces AT lists.bnl.gov> On Behalf Of 
Martin Purschke via sPHENIX-MAPS-l
Sent: Tuesday, October 24, 2023 4:37 PM
To: sphenix-mvtx-l <sphenix-maps-l AT lists.bnl.gov>
Subject: [EXTERNAL] [Sphenix-maps-l] mvtxgtm changes

All (this merits a wider audience than just Jo and me)

Jo had upgraded the mvtxgtm firmware to v49 and found that the gtm doesn't 
start any longer.

I had first thought that this is due to a known effect that sometimes, once 
in 5 or so reboots, there's a clock glitch and the FFO board is dead in the 
water. That is NOT the cause (and come to think of it, it only happens with 
the external clock that we aren't using here).

The support software was a really old version that predates the new features 
with the local modes etc. Bottom line, v49 needs the latest software that I 
just put on. That in turn needs some support libraries, such as the postgres 
libs and other stuff. I upgraded all of that.

Also, on the main GL1/GTMs I had split the setup into a part where we start 
the rpc server, and the part where we initialize registers at boot. The 
former is done with systemd, and the latter is done in /etc/rc.local. So the 
two can now be done independently.

We need to init the regs only once after a boot (hence /etc/rc.local), while 
there may be reasons (new versions, etc) to restart the server. 
That in itself will not touch any regs; the server will map itself to the 
register space and sees what is already there.

So your gtm is now like the others, and it works reliably. I made it so that 
only vGTM4 is enabled, and here it is:

> root@mvtxgtm:~# gtm_status
> 0x10
> root@mvtxgtm:~# gtm_start
> root@mvtxgtm:~# gtm_status
> 0x100010

Enjoy!

Best,
        Martin

-- 
Martin L. Purschke, Ph.D.        ;   purschke AT bnl.gov
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