The Frontpanel is actually connected via the Lecroy PCI controller card, so there's no USB involved. I think i figured out the registers, but haven't had a chance to write a new driver so far.
My WavePro actually seems to have a HW issue - as soon as Sample Memory goes above 1MS, the trace misses half of the Data. This happens on all Channels. It also happened with the original Mainboard/CPU/Software, so it can't be caused by the upgrade. Attached a few pictures, if anyone has an idea where to look for that Problem let me know.
The Frontpanel is actually connected via the Lecroy PCI controller card, so there's no USB involved. I think i figured out the registers, but haven't had a chance to write a new driver so far.Thank you for the correction. I just realized that in the WaveRunner 6K series the frontpanel is connected using USB and I must have thought they would be done in a similar way.
QuoteMy WavePro actually seems to have a HW issue - as soon as Sample Memory goes above 1MS, the trace misses half of the Data. This happens on all Channels. It also happened with the original Mainboard/CPU/Software, so it can't be caused by the upgrade. Attached a few pictures, if anyone has an idea where to look for that Problem let me know.When you did the motherboard swap have you had a look and taken pictures of the acquisition board? Just wondering in general how the sample memory etc. is arranged.
Ok, don't know about other LeCroy scopes - it's actually the first LeCroy Scope i have.
I had a look at the Acquisition Board, but the Sample Memory and the ADC are covered by one big Heatsink which i didn't want to take off. So i have no idea how the board actually looks like.
I added some pictures how i connected the TFT display to a normal DVI port (insted of the i865 DVO port). It was basically removing the Sil164 and soldering the DVI wires directly to the signal lanes.
You mentioned that the problem happens after 1MS. This is with all 4 channels on? What if you only enable 2 channels? Channels 2 and 3 I think so that they work at 20GS/s and there is only 2 channels available. Does it still happen after 1MS?
It was my understanding that channels 1 and 2 are their own group and channels 3 and 4 another group. And that they would be quite independent. So it's interesting that the issue seems to affect all channels. That might give some clues about what could be causing the issue or at least what shouldn't be causing it.
I added some pictures how i connected the TFT display to a normal DVI port (insted of the i865 DVO port). It was basically removing the Sil164 and soldering the DVI wires directly to the signal lanes.
QuoteThat's interesting use of the DVI interface on the LeCroy board if I interpreted it correctly based on that picture.
Parallel data in -> DVI transmitter -> a few centimeters of traces on the PCB -> DVI receiver -> Parallel data output again
It's a bit different as the Bus from the Motherboard is 12 bits wide while the TFT has 6 Bits per color channel. So electrically they are not the same.
My WavePro actually seems to have a HW issue - as soon as Sample Memory goes above 1MS, the trace misses half of the Data. This happens on all Channels. It also happened with the original Mainboard/CPU/Software, so it can't be caused by the upgrade. Attached a few pictures, if anyone has an idea where to look for that Problem let me know.
When you did the motherboard swap have you had a look and taken pictures of the acquisition board? Just wondering in general how the sample memory etc. is arranged.
My WavePro actually seems to have a HW issue - as soon as Sample Memory goes above 1MS, the trace misses half of the Data. This happens on all Channels. It also happened with the original Mainboard/CPU/Software, so it can't be caused by the upgrade. Attached a few pictures, if anyone has an idea where to look for that Problem let me know.
That's very likely a defective PCI controller board, although it could also be a problem with the Autonomous Acquisition Controller on the acq mainboard.
All assuming you didn't change any settings in the locked service/development sections of the interface, which can cause errors like these.
That's very likely a defective PCI controller board, although it could also be a problem with the Autonomous Acquisition Controller on the acq mainboard.
feels a bit more like summer
it's been a few years since i wrote the last Windows driver (which was actually a device driver for the lecroy USB chief, which crashed my Windows XP system)
I got a first driver hack that both sets the LEDs correctly (also on Systems with Hyperthreading or multiple CPUS) and reads the Frontpanel Keys correctly. However, have to clean up the driver source to make a final driver. Right now almost no code is present for unloading the driver. But the Frontpanel already works much better with this driver compared to the original version.
BTW, in your upgrade endeavors, have you considered or even looked into replacing the pretty loud fans in the WavePro 7k? I'm contemplating looking into this on mine, as the noise level could really be a little bit lower.
No, i did not look into that yet because i don't have any knowledge how much cooling is required. I'm a bit afraid that something is overheating than if i reduce it too much.
But i have to agree that the noise level is insane. It's even louder than the Tektronix scopes i have, and i thought that's impossible
Another topic:
Do you (or someone else) know whether the I2C/UART/SPI decode options are available for WP7K scopes?
Thanks. Just asking because i can't select the WavePro 7k for those options on the Lecroy site. Maybe that's because they're end of sale.
How does that decode stuff usually work? You only get an option key from LeCroy, or do you also have to install some additional Software?
Nice Screenshot What is the menu path to show that screen? Means which menu do i have to open if i have some of these options installed?
This is quite interesting. So what you are saying that when buying a piece of equipment I am signing a legal agreement? What about second hand market then? Isn't all that just US/DMCA thing?
I'll be looking for a more performant (than DS1054Z), preferably windows, used scope in a couple of months and this thread got me intrigued on WP7300A. Some time ago I had ScopeStation LS140, huge old MS-DOS beast, not very impressive specs by today's standards but I really liked the UI and the math. If LeCroy is putting a gag order then WP7300A won't be so valuable and I'll have to look elsewhere (e.g. TDS7104 or similar).
I'm only saying what is going on, if you think you are in the right go right ahead. I'm still waiting for the zero poster user who signed up to provide some credentials as to who they are. However it goes without saying that was is put on here stays forever.
You can expect pretty much any big brand to make a fuss when details about their software key system for their current scopes get out (i.e. being able to generate codes, not just enabling options by permanently enabling trials). Keysight would probably send a lawyer attack squad if the code generation for current Infiniiums became public knowledge. How much of a legal standing they have is doubtful (especially outside the US), but you can be sure they would at least put their weight in the ring to dissuade attempts to make details about their software protection scheme public. Of course the point still stands that is someone can easily figure out how the key system works then others will, too, so becoming overly threatening is probably counter-productive for a manufacturer. Which I guess they know.
But a TDS7104, really? Even without the ability to hack the WP7300A it is a much better scope. The TDS7k is slow, it only has a subset of the WavePro's functionality, and the options can't hold a candle against the ones for the WavePro. The TDS7k(B) is a typical ASIC architecture based on a weak processing platform (P3 Celeron 850MHz), and it's stuck with Windows 2000 where the WavePro 7kA runs XP which works with a lot more newer software (and the older WavePro 7k non-A which came out with W2k can easily be upgraded to XP, fully supported by LeCroy).
Oh, and the last firmware upgrade for the WavePro 7k(A) is dated 10 May 2016. The last firmware update for the TDS7kB is from 2005. Go figure.
You are right, but I always had the impression that manufacturers turn the blind eye if such hacking is for personal/hobbyist use (or for Rigol this is even marketing strategy ). Hence plenty of threads on this forum on Tek's internal GPIB commands, options EEPROMs, Agilent's binary exe patches or USB booting etc.
I wouldn't encourage such tricks in commercial environment and I doubt many people would. As a company you buy new scope, options and then expect good warranty and support.
I know, that is why I got interested in LeCroy, they seemed to know the benefits of good PC platform integration in the scope early on (even the old MS-DOS ScopeStation). With dxl's fixed driver it might be even possible to upgrade the motherboard (to some i3/i5), as long as it has PCI slot (or maybe PCIe to PCI adapter) for the interfacing card, right?
TDS7k is obviously not that good, has the custom motherboard (nasty) but often can be had really cheap on the second hand market.
I was also looking at Agilent, things like 54845A, but in tradition with other Agilent scopes it has laughable amounts of memory.