Products > Test Equipment

Sniffing the Rigol's internal I2C bus

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anson80:

--- Quote from: hammy on January 13, 2014, 10:03:12 pm ---
--- Quote from: marmad on January 13, 2014, 09:58:51 pm ---Also now linked to in the first post of this thread - in case you forget the number ;)

--- End quote ---

Good idea! Just answering the obvious questions. ;)
They all want to hack their scope, but don't take the time to read the thread. No pain, no gain!
Sometime the answer its just five messages away.  :scared:

--- End quote ---
If I say I almost from the beginning to see in the end, you will believe that?
Please forgive me, I like serious to read all the articles, but my English is not good,I think have A JTAG method different
I have seen posting #2446 , but like Linux operation

hammy:

--- Quote from: anson80 on January 13, 2014, 10:47:49 pm ---If I say I almost from the beginning to see in the end, you will believe that?

--- End quote ---

I believe it.


--- Quote from: anson80 on January 13, 2014, 10:47:49 pm ---Please forgive me, I like serious to read all the articles, but my English is not good, I think A and A through the JTAG method is different
I have seenposting #2447A , but like Linux operation

--- End quote ---

Ok. You only have windows and you want to know how to do the jtag dump with windows?
If someone provided already a dump from a scope from the same week like yours, it is not necessary to do this dump. In this case be nice to tirulerbach or zombie28 and ask for a key. Make more dumps and send the files to them!

This hacking here is an ongoing process. They all do great work. It needs time and a lot of effort!

anson80:

--- Quote from: hammy on January 13, 2014, 10:57:25 pm ---
--- Quote from: anson80 on January 13, 2014, 10:47:49 pm ---If I say I almost from the beginning to see in the end, you will believe that?

--- End quote ---

I believe it.


--- Quote from: anson80 on January 13, 2014, 10:47:49 pm ---Please forgive me, I like serious to read all the articles, but my English is not good, I think A and A through the JTAG method is different
I have seenposting #2447A , but like Linux operation

--- End quote ---

Ok. You only have windows and you want to know how to do the jtag dump with windows?
If someone provided already a dump from a scope from the same week like yours, it is not necessary to do this dump. In this case be nice to tirulerbach or zombie28 and ask for a key.

If not -> just wait patiently. Maybe someday there will be a ready-to-use keygen for your scope.
This hacking here is an ongoing process. They all do great work. It needs time and a lot of effort!

--- End quote ---
Thank you for your help
I just want to give some help, I don't care whether can get keygen. I don't want to No pain

granz:
Quick bandwidth measurement animation of my DS2072A after the keygen (now shows as DS2202A in system info).   It's a bit course because of the file size limitation.

I'll create a graph in the next few days which is more complete, but I thought I'd post this to help motivate people to provide more memory dumps.

Setup: Signal generator used was a Tektronix SG 503 Leveled Sine Wave Generator which goes up to 250 MHz.  Output was set at 2.00 Vpp (about +/- 5%) and verified with a 500 MHz scope over the frequency range shown.  All images are at the 5ns time base setting.  I'll include data from other time base settings in the graph.  (Obviously, 50 Ohms -to- 50 Ohms w/ 50 Ohm cable--same cable used to verify signal generator output with other scope).

You might notice that I couldn't actually get to the 3 dB point (~1.41 Vpp) with my signal generator due to it's limited output.  I guess I should build myself a fast pulse generator.

AndersAnd:

--- Quote from: granz on January 14, 2014, 01:24:02 am ---Quick bandwidth measurement animation of my DS2072A after the keygen (now shows as DS2202A in system info).
--- End quote ---
Any reason why you didn't upgrade to DS2302A instead of DS2202A?

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