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Sniffing the Rigol's internal I2C bus

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bistopepmol:
Hey there,

Got my new scope a couple of days ago,  DS2072A ( to replace my Poorly Tektronix 2430a (trig fault) ) Hardware ver 1.0.2.0.2 and firmware 00.03.00.01.03, I followed the great posts on here and now I have a DS2302 and all is well, thank you so much guys for the brilliant posts,  :-+  :-+ 

alank2:

--- Quote from: Gandalf_Sr on September 26, 2014, 01:15:11 pm ---I 'upgraded' my MSO2072A to a MSO2302A; so far I have had no issues.  The I2C decode seems slow, you can't look at the decode real time, you have to capture a single shot and then you can see it go past doing the decode.  In this respect, having such a large memory is clearly an advantage, I have a Tektronix MDO2024 at work and it's annoying that you can capture a section of I2C with decode but when you start scrolling through the message chain, it quickly craps out because it's run out of memory.  I'll check on the software versions on my MSO2302A and update this post.

--- End quote ---

Thanks for the info, anyone else, especially those running earlier DS2072 hardware versions having good or bad luck with the 2302 mode with FW 00.03.00.01.03?

Also, I thought I saw discussion about upgrading the bootloader and being unable to downgrade below certain firmware or something.  Was that for the DS2000 series or something else?

Jog:
Hi together,

good news & bad news.... |O

Scope DS2072a FW 03. SP1, HW2.0

Memory dump with: echo :SYST:UTIL:READ? 15441920,13262848 | ncat -i 1 SCOPE_ADDRESS_HERE 5555 > DS2072A_sdram.bin
works fine. 12,9MB. :-+

rigup DS2072A DS2072A_sdram.bin > opt.txt
works also fine and generates 4 different keys (only all options, 100MHz full option, 200 & 300) and I try all but they sems not to fit.
PS: also rigup scan DS2072A_sdram.bin > ec_decoded.txt works also fine an generates valid entries :-+

BUT entering the key over:
a) Scope directly = 0 reaction
b) over Ultra Sigma SCPI command ":SYSTem:OPTion:INSTall key" = 0 reaction
c) over Ncat via LAN "echo :SYST:OPT:INSTALL A_KEY_FROM_OPTIONS_WITHOUT_DASHES | ncat -i 1 SCOPE_ADDRESS_HERE 5555" = also 0 reaction

 :(

Any ideas/hints why it fails?

Update: Scope was blocked by to many false tries to enter unknown Options. After factory reset (multipress left gray button #6 multiple during booting) and retry to enter generated keys

 :D :D :D :D IT works!  ;D ;D ;D ;D

many thanks to all!

Gandalf_Sr:
@Jog

Glad to hear you got your DS2072A 'upgraded', I was unaware of the factory reset procedure until you posted it.

farzadb82:

--- Quote from: Jog on September 28, 2014, 09:49:05 am ---Hi together,

good news & bad news.... |O

Scope DS2072a FW 03. SP1, HW2.0

Memory dump with: echo :SYST:UTIL:READ? 15441920,13262848 | ncat -i 1 SCOPE_ADDRESS_HERE 5555 > DS2072A_sdram.bin
works fine. 12,9MB. :-+

rigup DS2072A DS2072A_sdram.bin > opt.txt
works also fine and generates 4 different keys (only all options, 100MHz full option, 200 & 300) and I try all but they sems not to fit.
PS: also rigup scan DS2072A_sdram.bin > ec_decoded.txt works also fine an generates valid entries :-+

BUT entering the key over:
a) Scope directly = 0 reaction
b) over Ultra Sigma SCPI command ":SYSTem:OPTion:INSTall key" = 0 reaction
c) over Ncat via LAN "echo :SYST:OPT:INSTALL A_KEY_FROM_OPTIONS_WITHOUT_DASHES | ncat -i 1 SCOPE_ADDRESS_HERE 5555" = also 0 reaction

 :(

Any ideas/hints why it fails?

Update: Scope was blocked by to many false tries to enter unknown Options. After factory reset (multipress left gray button #6 multiple during booting) and retry to enter generated keys

 :D :D :D :D IT works!  ;D ;D ;D ;D

many thanks to all!

--- End quote ---

Hi Jog. Do you know if the factory reset procedure is the same for all Rigol scopes ?  I have a MSO1074Z-S scope and I keep getting a message that states I'm unable to enter any more keys for 12 hours.


-- Farzad

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