 11 Dec 2020, Frederik Wauters, Forum, history and variables confusion
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1. ok, so calling the same readout functions from different equipments is just a bad idea, my bad, no blame for Midas to write data from both bank to both
odb trees ...
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15 Mar 2021, Frederik Wauters, Forum, INT INT32 in experim.h
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works!
> Ok, I added
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 29 Oct 2021, Frederik Wauters, Bug Report, midas::odb::iterator + operator
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I have 16 array odb key
{"FIR Energy", {
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29 Oct 2021, Frederik Wauters, Bug Report, midas::odb::iterator + operator | work around
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ok, so retrieving as a std::array (as it was defined) does not work
std::array<uint32_t,16> avalues = settings["FIR Energy"]["Energy Gap Value"];
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26 Jan 2022, Frederik Wauters, Forum, .gz files
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I adapted our analyzer to compile against the manalyzer included in the midas repo.
All our data files are .mid.gz, which now fail to process :(
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31 Jan 2022, Frederik Wauters, Forum, .gz files
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> > I adapted our analyzer to compile against the manalyzer included in the midas repo.
> > TMReadEvent: error: short read 0 instead of -1193512213
>
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11 Nov 2022, Frederik Wauters, Bug Fix, O_CREAT in open in split.cxx
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midas currently does not compile on linux
/usr/include/x86_64-linux-gnu/bits/fcntl2.h:50:24: error: call to ‘__open_missing_mode’ declared with attribute error: open with O_CREAT or O_TMPFILE in |
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19 Sep 2023, Frederik Wauters, Bug Report, epics fe "Start Command"
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The epics frontend overwrites the "start command" odb after each start:
// set start command in ODB
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24 Sep 2023, Frederik Wauters, Suggestion, scroll when browsing for a link
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Another small user experience request:
When making a link in the odb (web interface) a nice browser window pop's up. There is however not scrolling possible in the window. As a result, you can |
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15 Jan 2024, Frederik Wauters, Forum, dump history FILE files
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We switched from the history files from MIDAS to FILE, so we have *.dat files now (per variable), instead of the old *.hst.
How shoul
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18 Feb 2024, Frederik Wauters, Forum, dump history FILE files
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> $ cat mhf_1697445335_20231016_run_transitions.dat
> event name: [Run transitions], time [1697445335]
> tag: tag: /DWORD 1 4 /timestamp
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19 Jun 2025, Frederik Wauters, Bug Report, add history variables
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I have encounter this a few times
* Make a new history panel
* Use the web GUI to add history variables
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01 Oct 2025, Frederik Wauters, Forum, struct size mismatch of alarms
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So I started our DAQ with an updated midas, after ca. 6 months+.
No issues except all FEs complaining about the Alarm ODB structure.
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02 Oct 2025, Frederik Wauters, Forum, struct size mismatch of alarms
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> Sorry to intervene there, but the FEs are usually compiled against libmidas.a . Therefore you have to compile midas, usually do a "make install" to update
the libmidas.a/so, then recompile the FEs. You probably forgot the "make install".
>
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26 Apr 2017, Francesco Renga, Forum, Problem with logger at run start
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Dear experts,
we have a problem when trying to run a MIDAS DAQ which worked in the past on the same PC (but on a different
network). We get the following error messages when starting a new run:
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26 Apr 2017, Francesco Renga, Forum, Problem with logger at run start
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Dear Stefan,
thank you very much for your reply. We could finally fix the problem by replacing "scarlett" with "scarlett.localdomain" in our
hostname configuration file /etc/hostname (under debian).
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04 May 2018, Francesco Renga, Forum, ODB full
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Dear expert,
I'm developing a frontend and I'm getting this kind of error at each event:
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11 Sep 2018, Francesco Renga, Forum, Launching an executable script from the sequencer
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Dear experts,
is there any way to launch an executable script on the host computer from the MIDAS
sequencer? If not, is there any interest to develop such a feature?
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11 Mar 2019, Francesco Renga, Forum, Run length
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Dear all,
I need to implement a DAQ sequence where a short run (100 events, which takes a couple of
minutes) is taken every hour, with a long run in between two short runs. In the sequencer, I can do:
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12 Mar 2019, Francesco Renga, Forum, Problem stopping every second run
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Dear all,
I'm running a DAQ frontend and it works well if one single run is
taken. If I try to take a second run right after, the run is performed but, when
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