Products > Test Equipment
Upgrading Mainboard in Lecroy DDA-3000 (aka WavePro 7300a?)
analogRF:
--- Quote from: ollopa on November 13, 2019, 12:45:00 am ---Whether or not the software loads up the CPU depends on what features are enabled. Basic scope functionality is low load but filtering, protocol decode, and other math transforms and software triggers wind up having to use the CPU to process the capture buffer. Your CPU load then becomes a function of your sample rate and memory depth.
--- End quote ---
yes, I have ALL options enabled, I was measuring temps with one cascaded math AVG (FFT) on ch1 and a digital filtering on ch2
both at 10Gs/s. both threads on the CPU remain below %60-70 or so...in fact one of them is way below...
DaJMasta:
Ran into a strange issue working on a WP7300 running the latest XStream compatible with XP - everything seems to work fine and feel responsive, until you move a waveform... then you get a couple seconds worth of lag before it updates anything and starts acquiring. Makes it especially difficult to use the knobs to pick an offset, since it seems to only get the first bit of the input.
Tried uninstalling and reinstalling the XStream package, also tried reinstalling the chipset drivers. Is this some confused XP thing that just needs a full OS install, or have you run into something that causes this? When acquiring, all the software menus are responsive, and I haven't been able to mimick the behavior in any of the other software I try on the scope.
Anyone run into it and have a fix?
analogRF:
can you state at what time/div and sample rate and memory length you face this problem? or is it happening all the time?
DaJMasta:
Basically all the time, happens well into the 10s of ns time divisions, also on the full autoset mode - the update rate is great when you're not messing with it (and moving from balanced performance to display performance makes a surprising difference), but you try to move a trace and the whole program (not the OS) locks up for a couple seconds.
analogRF:
--- Quote from: DaJMasta on November 13, 2019, 05:52:23 pm ---Basically all the time, happens well into the 10s of ns time divisions, also on the full autoset mode - the update rate is great when you're not messing with it (and moving from balanced performance to display performance makes a surprising difference), but you try to move a trace and the whole program (not the OS) locks up for a couple seconds.
--- End quote ---
I couldnt reproduce anything close to this on my 7300A. does it happen when you move the trace by position knob or by touch screen?
also how about moving the waveform horizontally?
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