Products > Test Equipment
Sniffing the Rigol's internal I2C bus
pascal_sweden:
The distributor in Sweden offers both the DS2072 and DS2072A model at this point in time.
In fact they throw in a discount for the old DS2072 version.
But there is no confirmation if it is HW version 2 or not. I could ask them though.
For my understanding, is DS2072A much improved or only improvement on internal impedance switch?
Or is the overall design improved?
I would like to see summary table with difference between DS2072 HW1, DS2072 HW2 and DS2072A to get overall picture all at once.
Can DS2072 HW version 1 be upgraded to 200 MHz only or up to 300MHz? Verified with actual measurements on scope to double check if it really works and not only in GUI?
Which decoding/memory options can be added?
Can DS2072 HW version 2 be upgraded to 200 MHz only or up to 300MHz? Verified with actual measurements on scope to double check if it really works and not only in GUI?
Which decoding/memory options can be added?
Can DS2072A be upgraded to 200 MHz only or up to 300MHz? Verified with actual measurements on scope to double check if it really works and not only in GUI?
Which decoding/memory options can be added?
I understand that DS2072A might require individual memory dump to do actual upgrade for time being, but still I like to know if HW is capable of the upgrade. Then I can wait until the generic hack is in place, as I dont want to open my scope. But I need to know if DS2072A can be made 100% same as DS2302A.
Did anyone do visual inspection of actual PCB boards between DS2072 and DS2302?
Did anyone do visual inspection of actual PCB boards between DS2072A and DS2302A?
Given that people open up their scope for making memory dumps, visual inspection might be done at same time as well :) Of course I realize maybe nobody with a real DS2302 or DS2302A wants to open their big investment :)
battlefield:
So after making two memory dumps I'd like to add that if you have 64bit linux stuff has a chance of not wroking. I fixed all of my problems just by putting in live usb with Ubuntu 12.04 32bit and downloaded bfin toolchain, and did the memory dump from ther (with Olimex ARM-USB-OCD it took me about 30 to 45 minutes per dump).
Mark_O:
--- Quote from: pascal_sweden on January 14, 2014, 10:03:50 pm ---Q1) For my understanding, is DS2072A much improved or only improvement on internal impedance switch?
Q2) Or is the overall design improved?
Q3) I would like to see summary table with difference between DS2072 HW1, DS2072 HW2 and DS2072A to get overall picture all at once.
Q4) Can DS2072 HW version 1 be upgraded to 200 MHz only or up to 300MHz?
Q5) Verified with actual measurements on scope to double check if it really works and not only in GUI?
Q6) Which decoding/memory options can be added?
Q7) Can DS2072 HW version 2 be upgraded to 200 MHz only or up to 300MHz?
Q8) Verified with actual measurements on scope to double check if it really works and not only in GUI?
Q9) Which decoding/memory options can be added?
Q10) Can DS2072A be upgraded to 200 MHz only or up to 300MHz?
Q11) Verified with actual measurements on scope to double check if it really works and not only in GUI?
Q12) Which decoding/memory options can be added?
Q13) I need to know if DS2072A can be made 100% same as DS2302A.
Q14) Did anyone do visual inspection of actual PCB boards between DS2072 and DS2302?
Q15) Did anyone do visual inspection of actual PCB boards between DS2072A and DS2302A?
--- End quote ---
:palm:
marmad:
--- Quote from: pascal_sweden on January 14, 2014, 10:03:50 pm ---Given that people open up their scope for making memory dumps, visual inspection might be done at same time as well :) Of course I realize maybe nobody with a real DS2302 or DS2302A wants to open their big investment :)
--- End quote ---
There are NO DS2302s - of any kind. Neither Rigol - nor any of their distributors - are, at this point in time, selling DS2302As - nor are they selling upgrades to that BW. So we have no way of knowing whether the current hardware revision that ANYONE owns correctly supports (or will EVER correctly support) that BW. You can currently "turn it on" on any non-A model (but it's buggy) and that's about the state of it. Perhaps Rigol is working on a new revision of the hardware right now for future DS2302s - or perhaps they will NEVER sell them.
IMO it's not a good reason to hold off - or make purchasing decisions - since the current DS2000s (v.1 or v.2) have a ~250MHz BW - and the sampling hardware doesn't really support 300MHz well anyway.
pascal_sweden:
The Swedish distributor sells the DS2302A:
http://www.instrumentcenter.se/sv/200-500-mhz-bandbredd/rigol-ds2302a-bandbredd-300mhz-2-kanaler-2gsas-minnesdjup-14mpts%28standard%29-56mpts%28option%29-50000-wfmss..php
Or did I misunderstood your remark about not selling 300MHz version? =)
Note that my questions were just trying to get an overall summary in place on current status of hacks/verifications, as this information is spreaded throughout the forum :)
No need for a hotline :)
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