Products > Test Equipment
Sniffing the Rigol's internal I2C bus
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whotopia:
Just got a new DS2072A.  I converted to DS2202A with all options (via old FW and old private key).
Will the scope function correctly with the old firmware? Has anyone noted any problems? 

Also, I 'lost' the serial number in the process, and the scope is now using default value.  On the DG4000 via cengen (see elsewhere on this forum) you can generate a license.GEL file through which one can also apparently mod the serial number.  Is such a thing possible for the DS2000?  Is there anyway to restore the serial number ?  Is there any real harm in having the default?
The scope doesn't ever try call Rigol if ethernet connected right?

Thanks
Steven
AndersAnd:

--- Quote from: Fagear on December 30, 2013, 11:59:18 am ---
--- Quote from: EV on December 30, 2013, 11:39:18 am ---
--- Quote from: marmad on December 30, 2013, 03:46:26 am ---
--- Quote from: poida_pie on December 30, 2013, 03:34:25 am ---BUG in latest f/w, 02.01

Delayed sweep malfunctions.
To reproduce:
Ch2 must be enabled, Ch1 optional
acquire:  7M samples, normal
trigger: ch1 or not important, Auto or Normal seems to have no effect
main timebase 500us/div, delayed t.b. 100 us/div or something
Then when you move the delayed t.b. towards 1 ns/div all seems well until you select 1 ns/div..
It locks up for about 10 seconds, no waveform update, no response to keys.
Then it comes good and lets you go back to 2ns/div
--- End quote ---
I see what you're talking about, but as mentioned earlier in the thread in regards to problems with the 1ns time base:

It's another error (and there's a few of them) in an, as yet, officially unimplemented - and perhaps unfinished? - portion of firmware. As far as I know, Rigol has not started selling BW updates - but if/when someone on the forum has a DS2302A (or DS2302A-S), we can find out if the error(s) exist in the 'official' working version - and if so, report it to Rigol.

I suggest disabling 300MHz on non-A HW v.1 models. Not only is it buggy (I've had a couple of crashes from it), but it's not really perfectly implemented in the input stage.
--- End quote ---
How is it possible to uninstall only BW option?
--- End quote ---
Do ":SYSTem:OPTion:UNINSTall" and then generate new keys without 300 MHz option (with 200 MHz for example) and install them.
It can be two keys: DSAZ (200 MHz, MEM, DC, AT) then DSEA (CAN).
--- End quote ---
Or simply use DSEZ instead as the only key, to combine CAN with all the options included in DSAZ (200 Mhz, Mem, Dec and Trig) into a single key.
Combining the two tables below DSEZ should install CAN, 200 Mhz, Mem, Dec and Trig.
So DSEZ should be the one key solution to use for non A DS2000 with HW 1 and the latest FW if you want 200 MHz with all available options including CAN but without 50 ohm which is not implemented on HW 1 anyway.

EZ derived from the two tables for y (3rd letter) and x (4th letter) below (DSyx):

--- Code: ---y  CAN, 300, 50ohm   |   x  200, 100, Mem, Dec, Trig
E   on   ==   ==     |   Z   on   ==   on   on   on   <-  All 2202
--- End code ---

Table for 3rd letter (y):

--- Quote from: Carrington on December 11, 2013, 01:59:54 am ---Is this correct?
IMHO would be interesting know the entire table, and thus activate the desired options with a single key.


--- Code: ---Code table: Use DSYX for a official key, and use VSYX for a trial key.

Y  CAN, 300, 50ohm

A   none
B   ==   ==   on
C   ==   on   ==
D   ??   ??   ??
E   on   ==   ==
F   ??   ??   ??
G   ??   ??   ??
H   on   on   on
J   ??   ??   ??
K   ??   ??   ??
L   ??   ??   ??
M   ??   ??   ??
N   ??   ??   ??
P   ??   ??   ??
Q   ??   ??   ??
R   ??   ??   ??
S   ??   ??   ??
T   ??   ??   ??
U   ??   ??   ??
V   ??   ??   ??
W   ??   ??   ??
X   ??   ??   ??
Y   ??   ??   ??
Z   ??   ??   ??
--- End code ---

--- End quote ---
E instead of A as 3rd letter enables CAN but still leaves out the 300 MHz BW and 50 ohm which is not implemented on HW 1 anyway.

Table for 4th letter (x):

--- Quote from: Carrington on December 10, 2013, 03:16:35 pm ---Cybernet has done it, again! *ole*  :-+

Now I'm very busy and I can't test anything (check the BW for example).

Anyway. How is the new table?


--- Quote ---Code table: Use DSAx for a official key, and use VSAx for a trial key.

x  200, 100, Mem, Dec, Trig

A   none
B   ==   ==   ==   ==   on
C   ==   ==   ==   on   ==
D   ==   ==   ==   on   on
E   ==   ==   on   ==   ==
F   ==   ==   on   ==   on
G   ==   ==   on   on   ==
H   ==   ==   on   on   on

Note: keys A..H wont change the model, only ADD an option.

2102:

J   ==   on   ==   ==   ==   
K   ==   on   ==   ==   on
L   ==   on   ==   on   ==
M   ==   on   ==   on   on
N   ==   on   on   ==   ==
P   ==   on   on   ==   on
Q   ==   on   on   on   ==
R   ==   on   on   on   on   <-  All 2102

2202:

S   on   ==   ==   ==   ==   
T   on   ==   ==   ==   on
U   on   ==   ==   on   ==
V   on   ==   ==   on   on
W   on   ==   on   ==   ==
X   on   ==   on   ==   on
Y   on   ==   on   on   ==
Z   on   ==   on   on   on   <-  All 2202

DONT USE BELOW Not recommended, as activates 2102 and also 2202:

2   on   on   ==   ==   ==
3   on   on   ==   ==   on
4   on   on   ==   on   ==
5   on   on   ==   on   on
6   on   on   on   ==   ==
7   on   on   on   ==   on
8   on   on   on   on   ==
9   on   on   on   on   on
--- End quote ---

--- End quote ---
Z as 4th letter for 200 Mhz, Mem, Dec and Trig.


And here's the table to convert between binary values and letters: https://www.eevblog.com/forum/testgear/sniffing-the-rigol's-internal-i2c-bus/msg322495/?topicseen#msg322495
zombie28:

--- Quote from: NikWing on December 30, 2013, 12:39:10 am ---ok, I found out about the 0x before I read your reply lol

it says licence is unavailable

--- End quote ---

It appears that Rigol changed not only ECC keys, but also license code format.
PA0PBZ:
I tried option DSBA on my non-A model with the latest firmware, it said "option installed" but I can't find any changes, certainly not the 50 Ohm option. Would there be a key for that since it is build into all A models as a standard?
marmad:

--- Quote from: PA0PBZ on December 30, 2013, 04:08:03 pm ---I tried option DSBA on my non-A model with the laters firmware, it said "option installed" but I can't find any changes, certainly not the 50 Ohm option. Would there be a key for that since it is build into all A models as a standard?

--- End quote ---

I think it's unlikely. It's a standard feature on new A-models (and so one of their new selling points vs. non-A models), so it I doubt it would ever be sold as an 'option' specifically for HW v.2 non-A owners - thus no key. But perhaps the FW can be patched to enable it.
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