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Master Timer Problem

2013-05-18
2015-03-31
  • Chris Moses

    Chris Moses - 2013-05-18

    My fixtures don't seem to like the Master Timer frequency set in the program. A queue seems to build up of DMX instructions causing the scanners to move very slowly from one step to the next. In the original QLC I was able to adjust the "MasterTimer" variable in the source code and re-build...

    /* The timer tick frequency in Hertz /
    const uint MasterTimer::s_frequency = 25;

    ...I found that 25Hz seemed to work OK with my fixtures. Obviously the new QLC+ is back to the default (which might be around 50Hz). Is there a way to change this without re-building the program?

    Massimo did give me instructions to change the output frequency of the USB DMX interface, by editing the "net.sf.Q Light Controller Plus.plist" file (I'm using a Mac) and adding...

    <key>enttecdmxusbopen/frequency</key>
    <string>25</string>

    ...to the bottom, but this doesn't seem to do anything though, the fixtures are still responding slowly. Here is a screen shot of my output configuration...

    http://www.chrismoses.co.uk/qlc2.png

    ...it looks as though I have an "FT232R" interface made by FTDI. Would the above setting be correct for this device, as it's not an Entec?

    Failing this I guess I'll have to re-build QLC+ too, with the new Master Timer setting.

    Many thanks,
    Chris

     
  • de DJ Fabriek

    de DJ Fabriek - 2015-03-26

    I was searching the topics because i also have some flickering at 1 RGB controller. I can't find the file net.sf.Q Light Controller Plus.plist in the library?

     
  • Dawid Skalski

    Dawid Skalski - 2015-03-31

    Hi,

    You can change QLC MasterTimer trough Windows Registry.
    Simply - make a file: "QLC-tune.reg" containing:

    Windows Registry Editor Version 5.00

    [HKEY_CURRENT_USER\Software\qlcplus\Q Light Controller Plus\enttecdmxusbopen]
    "frequency"=dword:00000023
    [HKEY_CURRENT_USER\Software\qlcplus\Q Light Controller Plus\mastertimer]
    "frequency"=dword:000000c8

    and put it into registry.

    Value "dword:000000c8" means 200Hz, and it helped for me.
    If you want 25Hz change it to "dword:00000019"

    Hope this help :)
    skalny7

     
  • Jano Svitok

    Jano Svitok - 2015-03-31

    Here is the documentation and where to find the settings on each platform: qlcplus.sourceforge.net/docs/parameterstuning.html#MasterTimer

    The very same text is in the online help.