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| Sniffing the Rigol's internal I2C bus |
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| davorin:
Stupid me (o; J-Link IO buffers are powered from the Vtarget pin ;-) Okay..memory dumped...modified src/utils.c for MSO key search and remove the LD option in Makefile as on Debian 10.9 it would always core dump (o; Installing license via SCPI didn't work...but on the scope it did ;-) Had to use the serial number returned from *IDN? SCPI command....now I got before and afte without power-cycler: --- Code: ---IDN? RIGOL TECHNOLOGIES,DS1074Z Plus,DS1ZC223303310,00.04.04.SP4 *IDN? RIGOL TECHNOLOGIES,DS1104Z Plus,DS1ZC223303310,00.04.04.SP4 --- End code --- |
| ve7xen:
--- Quote from: KK1L on March 06, 2021, 02:45:13 am ---Ok folks with help and some hints from a friendly PM from tv84 the issue is sorted. The bottom line is the rigup versions from gotroot.ca do not work. I tried all of them (windows exe). The one below does. Funky output for the "search" option when including the dump file, but shows the "ok." for the known good license in my memory dump. It creates the correct unlock code! http://i-hobby.org/blog/Electronics/60.html Be sure of the option code used. 0x1C0DF is what I used to open all up except 500uV. (CSAR = 0x1C001) Triggers (CSAB = 0x1C002) Decoders (CSA3 = 0x1C004) Mem-depth (CSAJ = 0x1C008) Recorder (CSAS = 0x1C010) DG (CSRA = 0x1C020) 500uV (CSBA = 0x1C040) Power Ana. (CS3A = 0x1C080) Bandwidth (100MHz) (CSHY = 0x1C0FF) All (CSGY = 0x1C0DF) All except 500uV I should have noticed it before, but there is a bit set for each option. You should be able to mix and match. I did an :uninst, then :inst 0x1C0DF and got all but 500uV. Sweet. --- End quote --- Edit: I have reviewed the source code in the i-Hobby zipfile and concluded there isn't any substantive difference (just some standard-C-to-Windows-isms and the like), so either the provided binary doesn't match the source, or there is something wrong/different between the two builds. Would you be willing to PM me your dumpfile/serial and the working output? I would like to investigate. In the meantime, I have added the i-Hobby zipfile to the gotroot.ca archive. |
| tv84:
I've said this in the past: due to its evolution history, rigup has some coding problems (possibility of buffer overflows, vars not properly freed up, some vars assignments, etc, etc) that require a complete revision of the code. Due to its age and potential targets, it seems that is not an appealing task. Due to these deficiencies one needs to have "some luck" with the compiling setup (OS, architecture, compiler, etc.) and the running environment. |
| rteodor:
--- Quote from: colabri ---Took me a while to figure out the bank switching method but it was an interesting exercise. --- End quote --- I want to do a backup before updating a buggy firmware on a bit different oscilloscope. Only the dump from the first bank came out properly (https://www.eevblog.com/forum/testgear/old-firmware-for-siglent-based-axiomet-oscilloscope/msg4020166/#msg4020166). I tried to switch to the second bank with your steps. Fortunately nothing bad happened but unfortunately there was no switch. It may be that the registers are different and right now I have no idea on how to figure them out. Can you detail a bit on how you figured out the bank switching ? |
| s1ic3r:
hello- I'm getting setup to enable options on my mso1104z, i'm using a seggar j-link programmer with which i'm not all that farmiliar with yet but thanks to this awesome thread I believe i've got most of my ducks in a row. As I was making my connections j-link-->scope I noticed that the j-link target supply pin is 5V, however the jtag interface on the scope is 3v3/ref, I notice numerous others have used the j-link as well, do I need to use a level shifter? Ive poked around a fair amount of this thread and don't recall any mention of using a level shifter. Not knowing any different i'd have to assume the 3v3/ref pin is not 5v tolerant. I understand this aspect of the scope hack isn't rocket science but im' curious how others worked around this? thanks |
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