Products > Test Equipment
Sniffing the Rigol's internal I2C bus
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Git:

--- Quote from: alank2 on December 26, 2013, 06:51:35 pm ---What trick is this?

--- End quote ---

There's mention of it here :
http://hackaday.com/2013/07/02/unlocking-a-rigol-scope-once-again/
also there was a Service Mode hack.

Git
alank2:

--- Quote from: Git on December 26, 2013, 07:04:58 pm ---There's mention of it here :
http://hackaday.com/2013/07/02/unlocking-a-rigol-scope-once-again/
also there was a Service Mode hack.

--- End quote ---

Unlocking as in installing a test key?

Is there a service mode hack for the ds2000 besides the menu7-menu6-menu7 one?
bigmarkslp:

--- Quote from: Git on December 26, 2013, 07:04:58 pm ---also there was a Service Mode hack.

--- End quote ---

There is studio25's Atiny85 trick too, right?
jkw13:

--- Quote from: studio25 on December 14, 2013, 03:50:25 pm ---
--- Quote ---I think I've "bricked" my new DP832 by downgrading it to v1.06 and back to v1.08.
ADC cal doesn't work anymore, and the display meters are wrong.
Is there any way to recover from this do you think? Perhaps I did something wrong?
Does anyone know the ManualCal procedure?   :-BROKE
Thanks!

--- End quote ---

The problem is not the firmware up / downgrade.
There is a bug in the manual calibration.
Only volts and current ADC are affected.
The DAC's are ok.
Rigol knows the problem.
I'm waiting for a new firmware.
Write a mail to the Rigol support.

--- End quote ---

Is there more to  it than this I wonder?
Rigol say v1.08 is the latest version.
I find it strange that in addition to the ADC problem
that the options are lost after downgrade/upgrade,
including the trial minutes that I had.
I would like to remove the options and try again,
but ":SYSTem:OPTion:UNINSTall" doesn't work in
Ultra Sigma, nor ":Cal:Start 2012,CH1" either |O
clifford:

--- Quote from: Carrington on December 26, 2013, 06:20:57 pm ---And, what about the rise time?

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I would rather worry about overshoot:



This is for 0 cm, 1 cm, 5 cm and 10 cm stubs, using vacuum (air) as dielectric. So this should correspond to about 0 cm, 0.5 cm, 2.5 cm and 5 cm stubs for real world dielectrics.

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