Rigol DS2000 Hardware version 2.0

[Carrington]

Hi Carrington, moving the trigger between 500 to 600 and I get very much the same results of my pic2.

Ok, thank.
Anyone else have a similar result? 

[PA0PBZ]

Hi,

My result for (1) is the same, just a little bit less amplitude.

For (2) I can't set the trigger higher than 400uV otherwise it does not trigger. When measuring the top cursor is at 600uV, the bottom one at -700uV so total 1.3mV

[Carrington]

Hi PA0PBZ, thank. 
Curious! Then yours (H.W. ver. 2.0) has a little less noise.

[Mr Simpleton]

Took delivery of a DS2072 today...
Must have been NOS (new old stock) as it has H/W rev1 produced in week 20.
Pity I did not see this thread when ordering...

As for noisefloor, loooks pretty much what all the other have

[Carrington]

Thanks Mr Simpleton, this results seem to be very similar to mine.
Anyone with HW version 2.0 please make this "test".

[PA0PBZ]

My Pictures 

(1) Is now the same as the others, (2) shows a bit less noise and the trigger is set to 500uV, it triggers about once every second. Above 500uV it does not trigger at all.

[PA0PBZ]

Still fooling around with the 50 Ohm option, found this SCPI in the firmware:

Code: [Select]

.RES.DATA....CHANnel.CHAN....BWLimi
t.BWL.BWLimit?....BWL?....COUPling.
...COUP....COUPling?...COUP?...IMPe
dance...IMP.IMPedance?..IMP?....SCA
:CHAN1:IMP? returns 0MEG, and I have not found a way to change it via SCPI, tried several variations of CHAN1:IMP 50... but nothing.

[tinhead]

try CHAN1:IMP FIFTY

[PA0PBZ]

try CHAN1:IMP FIFTY

I will as soon as I hook it up again, but the return value of 0MEG doesn't give much hope anyway.

[tinhead]

try CHAN1:IMP FIFTY

I will as soon as I hook it up again, but the return value of 0MEG doesn't give much hope anyway.

it is "OMEG", not "0MEG" and it is exactly what the firmware have to return. The "FIFTY" is another one possible value in the firmware.

[PA0PBZ]

it is "OMEG", not "0MEG" and it is exactly what the firmware have to return. The "FIFTY" is another one possible value in the firmware.

Yes, it is 0MEG, but if it was a working command it should have returned 1MEG isn't it?

[tinhead]

it will return what has been coded into the firmware, and when you look inside you will find "OMEG" and "FIFTY".
The "O" in "OMEG" menas nothing else than "one", so everything fine. Sure, 1MEG could be good as well, but the number "1" in string is probably what they tried to avoid.

[PA0PBZ]

Yeah, I found it too. Thanks for the suggestion and I will try it and let you know.

[Carrington]

My Pictures 

(1) Is now the same as the others, (2) shows a bit less noise and the trigger is set to 500uV, it triggers about once every second. Above 500uV it does not trigger at all.

Thanks, as we see all the results are very similar, but you have forced the trigger a little true?
Well, no matter.

[Carrington]

it will return what has been coded into the firmware, and when you look inside you will find "OMEG" and "FIFTY".
The "O" in "OMEG" menas nothing else than "one", so everything fine. Sure, 1MEG could be good as well, but the number "1" in string is probably what they tried to avoid.

Do you use a Hex viewer to see directly inside the gel file? Snoopers, LOL...
Do you have a idea of where is keep the serial number? And how change it?

[true]

Do you use a Hex viewer to see directly inside the gel file? Snoopers, LOL...

can use strings, or an editor yes

Do you have a idea of where is keep the serial number? And how change it?

I would like to work on this, but nobody seems interested in doing a JTAG dump of fw nor helping me get some working binaries of the blackfin IDA parts (cybernet likely has them, I can't compile them by instruction, the closest I got was with VS2008 but the resulting binaries didn't work). There may be a menu or config file to set this but without being able to work with the fw, I can't do shit.

[Carrington]

I would like to work on this, but nobody seems interested in doing a JTAG dump of fw nor helping me get some working binaries of the blackfin IDA parts (cybernet likely has them, I can't compile them by instruction, the closest I got was with VS2008 but the resulting binaries didn't work). There may be a menu or config file to set this but without being able to work with the fw, I can't do shit.

Not stored in the FRAM?
I can't do the dump via JTAG, becasue I don't have the equipment for do it. 

[true]

I would like to work on this, but nobody seems interested in doing a JTAG dump of fw nor helping me get some working binaries of the blackfin IDA parts (cybernet likely has them, I can't compile them by instruction, the closest I got was with VS2008 but the resulting binaries didn't work). There may be a menu or config file to set this but without being able to work with the fw, I can't do shit.

Not stored in the FRAM?
I can't do the dump via JTAG, becasue I don't have the equipment for do it. 

No; probably in the NAND.

Figuring out anything else hidden needs a good dump

[bluesmoke]

Then serial must be in nand. Studio25 wrote 0's and ff to the fram and it didn't change the serial.
Unfortunately I don't have the tools to do a jtag dump either. I would love to get my serial back too!

[Carrington]

This is very interesting, it reminds me to the "jumpers" of the DS4000, but it is less obvious.

[Carrington]

DS2000 Memory.

[PA0PBZ]

This is very interesting, it reminds me to the "jumpers" of the DS4000, but it is less obvious.

I browsed my pictures and found a little bit better one, you can see clearly that it is 2 rows and the jumpers are smd (resistors?)

[Carrington]

Ha ha, they are not in the same position. What the hell change this? 

[PA0PBZ]

Ha ha, they are not in the same position.

That's the whole idea behind jumpers isn't it? 

[Carrington]

"Elementary My Dear Watson" 
No one has noticed this before?
Have more pictures from other DS2000s would be nice.