Lecroy WR6K(A) question... - Page 1
Forum section: electronics / testgear

author: darkstar49
author_rank: Frequent Contributor
timestamp: January 12, 2018, 11:13:33 am
content: Does someone know whether the acq boards of the WR6KA and WR6K had any differences ??I've got a 6050A that shows a 'MAM phase error' (fatal error...) at startup, and I've also got a fully functional 6050... hence the idea of putting the acq board of the 6050 into the 6050A...(btw, if someone has any idea what 'MAM phase error' could mean, hints are more than welcome !!! MAM is the acq memory, but what is a 'phase error' in that context ??)And also, does anyone know whether the PCI interface card (with its 1-wire chip, containing the serial, options & Co), is somehow related (i.e. 'paired') to the acq board or if the acq board can be switched without hassle (at that level at least...)Many thanks in advance.Kr,P.

author: lukier
author_rank: Unknown
timestamp: January 12, 2018, 02:17:19 pm
content: Quote from: darkstar49 on January 12, 2018, 11:13:33 amI only have WR 6100A, so I have no clue about the HW differences between -A and non-A (according to the specs these are rather minor).While there might be some pairing between the ACQ board and the PCI card, the ACQ board is the oscilloscope, so putting 6050 board in 6050A pretty much just means attaching it to a different PC, because apart from the ACQ board (and PCI card) what's left is slightly modified ATX power supply, Windows PC and some USB devices (touchscreen, front panel).If there is a pairing between the PCI card and ACQ board then it probably can be modified, as I know that people tried shorting the 1-Wire EEPROM data line to GND and X-Stream runs, but reports serial number 000000 and no options.

author: DaJMasta
author_rank: Super Contributor
timestamp: January 12, 2018, 02:57:14 pm
content: I know in the WavePro 7000 series, there's differences in the CPU/RAM configurations used, the OS installed (the A variants were later and never came with windows 2000), but also in the main system clock, as some timing aspects are improved. If the 6k internals are similar, the main acquisition board has daughter boards for many functions (ADCs, front end modules, time base distribution), so it could be that there just was a different module installed rather than a totally different acquisition board or something.Again, I've only got the 7k as a reference, but the PCI card doesn't seem to be paired, but only communicates with the acquisition board somewhat - it also has a matching gigabit ethernet channel to each of the ADC boards that also interconnect between each other. So the PCI card has a single up/down link to the main board for basic functions and housekeeping, whereas the ADCs each have an uplink to the PCI card for sample data transfer.

author: darkstar49
author_rank: Frequent Contributor
timestamp: January 12, 2018, 03:13:36 pm
content: Nope... the 6K acq board is an 'all-in-one' board... for the PC part, I don't care, my 6K already has a quad-core CPU board, different LCD, SSD, etc...I think some of the components (a.o. the MAM439) are identical, but the overall design is completely different, much 'simpler'.I'll give it a try over the WE if I have some time...Regarding the 'pairing', I'm relatively confident there is none, but who knows... And I don't really see the point with setting all data lines of the DS2433 to GND... I've only briefly checked the data sheet, I don't see any protection mechanism, so where's the risk ?? As far as I know, the unique ID isn't even used for the serial or the scope-ID, and definitely not for the options, so maybe Lecroy keeps track of it, but I believe the unique ID is not used by the software (nor the microcode)...I'm still wondering what the heck 'MAM phase error' could mean... too bad we have none of the (retired ?) WR6K design engineers in this board/forum... :-(