Products > Test Equipment

Sniffing the Rigol's internal I2C bus

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hari:

--- Quote from: madcrow on February 08, 2014, 11:38:14 pm ---Is there any chance you could compile a rigup v0.2 which uses the recently discovered NS8H option instead of NSFH? I think a lot of people would be very grateful :)

--- End quote ---
just change the value in src/luxury.c and recompile. You can also scroll back a few pages to see how you can specify any license code on the command line.

lovro:
Hi,
I have managed to do it also. 200MHz with all options.

Thank you all who were all involved in this project.
EEVblog forum has a lot added value  :)

madcrow:

--- Quote from: hari on February 08, 2014, 11:50:34 pm ---
--- Quote from: madcrow on February 08, 2014, 11:38:14 pm ---Is there any chance you could compile a rigup v0.2 which uses the recently discovered NS8H option instead of NSFH? I think a lot of people would be very grateful :)

--- End quote ---
just change the value in src/luxury.c and recompile. You can also scroll back a few pages to see how you can specify any license code on the command line.

--- End quote ---

Do you mean:

--- Code: ---rigup scan keyfile.txt dump.bin
--- End code ---

and

--- Code: ---rigup license keyfile.txt 0x1C0C7
--- End code ---
?

In the first command line, is dump.bin the file I create using the Hex editor based on the information spat out by Zombie's patched FW?
Would this work even without modifying luxury.c?

corax:

--- Quote from: madcrow on February 08, 2014, 11:38:14 pm ---I just don't get it... Some of you (e.g. at2 and crmaris) were able to install the 300MHz (NS8H) option without difficulty. However corax and swperk only managed it by modifying the rigup source files.
How is this possible? Are there multiple paths you can take with the rigup tool to obtain the serial?

--- End quote ---

As has been pointed out, there's apparently a way to specify the code (as 0x1C0C7) on the command-line.

I edited / recompiled because I had to recompile anyhow- the distributed rigup linux executable is 64-bit, and I needed a 32-bit version.

pa3bca:
Proud owner of a 2072A with “enhanced features”. (all of them, including 300 MHz). Thanks guys!
To test the scope, I made a quick&dirty Jim Williams pulse generator, directly on a male BNC connector, see attached picture.
Transistor is a BSX20 I had laying around. This puppy avalanches nicely at around 80 Volts.
1 meg to +120 Volts, 22pF on the collector, and 2x100 Ohms parallel from emitter to ground. Also about a meter of RG58 to the collector to lengthen the pulse. This lengthening works quite nice, see the attached screenshots. Yellow is the pulse on the emitter (input 1 meg as there is no cable between the pulse generator and the scope so termination is not an issue?).
Channel 2 is the voltage on the collector, measured with the 1:10 probe.
It _looks_ like the pulse is long enough to give a somewhat reliable indication of the rise time.
Rise time is abt 700 ps which would yield a bandwidth of 0.4/700x10^-12 = 570 MHz (which sounds a bit optimistic), but certainly way better than the original 70 MHz…

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