Products > Test Equipment

Sniffing the Rigol's internal I2C bus

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AndersAnd:

--- Quote from: Avotronics on December 28, 2013, 04:44:12 pm ---
--- Quote from: dtran11 on December 28, 2013, 04:23:30 pm ---
--- Quote from: eltar on December 12, 2013, 06:18:57 pm ---
--- Quote from: eV1Te on December 12, 2013, 06:06:30 pm ---I will try it later tonight as well, just need to hack something together that generates a fast rising edges first, to test the 100 MHz with  :)

--- End quote ---
I can try it too. Is latest DS1000Z firmware 00.02.01.SP1 requested for unlocking 100MHz?
Do we have some info or change list for this firmware? Thanks :)

--- End quote ---

I just got a DS1074Z. Do the keys still work if I upgrade to 00.02.01.SP1? Also is there anyway to revert the options if I need to send in for repair?

Thanks

--- End quote ---
Ifaik the DS1000Z isn't hackable yet.
--- End quote ---
Yes DS1000Z is hackable: http://riglol.3owl.com

--- Quote ---DS1000z device options:
DSAB - Advanced Triggers
DSAC - Decoders
DSAE - 24M Memory
DSAJ - Recorder
DSBA - 500uV Vertical
DSEA - 100MHz
DSFR - all options
--- End quote ---

The hacks are even mirrored at your own website Avotronics ;) :-DD http://rigol.avotronics.co.uk/mirrors/riglol/



--- Quote from: dtran11 on December 28, 2013, 04:23:30 pm ---Also is there anyway to revert the options if I need to send in for repair?
--- End quote ---
Use the SCPI command ":SYSTem:OPTion:UNINSTall" to remove installed option keys again. Search this topic for :SYSTem:OPTion:UNINSTall

Carrington:
@clifford:


--- Quote from: clifford on December 28, 2013, 06:35:04 pm ---Wow! The Agilent AppNote is a good read. Thanks!
(Nothing really new but everything in one place.) :-+

...


--- End quote ---
The first pages [1-5] have reminded me those days studying signals and systems.
Figure 4 is a point of view very graphic about the aliasing.
Pages 6, 8 and 9 are interesting, too.
I wonder if the DS2000 have the FIR filter implemented in the DSP, or in the FPGA.

Thanks.  ;)


@Teneyes:

Teneyes and its magic.
Lovely sinc...


A few days ago someone mention something about a Tek oscilloscope that in dots mode showed more samples than should be.
It's not magic, are interpolated (maths).

Avotronics:


--- Quote from: AndersAnd on December 28, 2013, 07:03:11 pm ---
--- Quote from: Avotronics on December 28, 2013, 04:44:12 pm ---
--- Quote from: dtran11 on December 28, 2013, 04:23:30 pm ---
--- Quote from: eltar on December 12, 2013, 06:18:57 pm ---
--- Quote from: eV1Te on December 12, 2013, 06:06:30 pm ---I will try it later tonight as well, just need to hack something together that generates a fast rising edges first, to test the 100 MHz with  :)

--- End quote ---
I can try it too. Is latest DS1000Z firmware 00.02.01.SP1 requested for unlocking 100MHz?
Do we have some info or change list for this firmware? Thanks :)

--- End quote ---

I just got a DS1074Z. Do the keys still work if I upgrade to 00.02.01.SP1? Also is there anyway to revert the options if I need to send in for repair?

Thanks

--- End quote ---
Ifaik the DS1000Z isn't hackable yet.
--- End quote ---
Yes DS1000Z is hackable: http://riglol.3owl.com

--- Quote ---DS1000z device options:
DSAB - Advanced Triggers
DSAC - Decoders
DSAE - 24M Memory
DSAJ - Recorder
DSBA - 500uV Vertical
DSEA - 100MHz
DSFR - all options
--- End quote ---

The hacks are even mirrored at your own website Avotronics ;) :-DD http://rigol.avotronics.co.uk/mirrors/riglol/



--- Quote from: dtran11 on December 28, 2013, 04:23:30 pm ---Also is there anyway to revert the options if I need to send in for repair?
--- End quote ---
Use the SCPI command ":SYSTem:OPTion:UNINSTall" to remove installed option keys again. Search this topic for :SYSTem:OPTion:UNINSTall

--- End quote ---

Bugger! Lol.

That'll teach me. I was certain there were no hacks.
Wonder if I was thinking of another model....

Wait. Wasn't it that, originally, the DS1074Z hacks didn't add 100MHz option? Is that a new addition?

alank2:
neamyalo thank you for your work - would you be willing to upgrade to the latest firmware and repeat the full dump?

Your dump says it is 00.02.00.00.04 and the latest fw I know of is 00.02.01.00.03.

Thanks!

AndersAnd:

--- Quote from: Avotronics on December 28, 2013, 08:10:25 pm ---Bugger! Lol.

That'll teach me. I was certain there were no hacks.
Wonder if I was thinking of another model....

Wait. Wasn't it that, originally, the DS1074Z hacks didn't add 100MHz option? Is that a new addition?
--- End quote ---
Yes that's probably what you were thinking of. The 100 MHz option is a relatively new addition posted by seronday on 12 December 2013: https://www.eevblog.com/forum/testgear/sniffing-the-rigol's-internal-i2c-bus/msg346786/?topicseen#msg346786

--- Quote from: seronday on December 13, 2013, 12:11:50 am ---
--- Quote from: seronday on December 12, 2013, 01:36:11 pm ---Anyone who wants to change their new DS1074Z into a DS1104Z use the following Codes:-

DSHA  makes a  DS1104Z with no options enabled .
DSHR  makes a  DS1104Z with all options enabled .

The 3dB bandwidth for the DS1104Z is approx 160Mhz.
The 3dB bandwidth for the DS1074Z is approx 90Mhz.



--- End quote ---

Minor correction to my previous post after some further investigation.

DSHA also enables the 500uV setting and another unknown, (at present), option.

DSEA is the correct code to change to a DS1104Z only. ( no options ). See table below.

 Code      DS1104z    Unknown     500uV setting
DSBA                                               X
DSCA                            X
DSDA                            X                 X
DSEA           X
DSFA           X                                  X
DSGA           X               X
DSHA           X               X                 X

So to change a DS1074Z into a DS1104Z with all options enabled except the 500uV/div (which does not work correctly at present),
the code  will be DSER.

It is possible to revert back to original, by using the SCPI command " :SYSTem:OPTion:UNINSTall " .

As mentioned in my previous post, the measured 3dB down bandwidth after changing to a DS1104Z, is approx 160Mhz.
All the tests were done on a DS1074Z with Ver:00.02.00.SP1.
--- End quote ---

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