Products > Test Equipment

Sniffing the Rigol's internal I2C bus

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Avotronics:
Cybernet surely does love them big fresh dumps :-)

neamyalo:

--- Quote from: tirulerbach on December 28, 2013, 10:45:19 pm ---a.) How large is the RAM? 64 Meg?

--- End quote ---

I think the SDRAM is only 32 MB. I could only see one 32 MB IC connected on the PCBA and in a post a while back Alan2k (I think) also mentioned that the register values corresponded with only 32MB of SDRAM, starting at address 0.

Dave Turner:
My DS1074Z-S reports a software version - 00.02.00.SP1.

Has anyone seen a later version?

dtran11:

--- Quote from: AndersAnd on December 28, 2013, 08:43:13 pm ---
--- Quote from: dtran11 on December 28, 2013, 08:34:11 pm ---Also how do I revert back to DS1074Z?
--- End quote ---
I already mention that in a previous answer to your question: https://www.eevblog.com/forum/testgear/sniffing-the-rigol's-internal-i2c-bus/msg355312/#msg355312

--- Quote from: AndersAnd on December 28, 2013, 07:03:11 pm ---
--- Quote from: dtran11 on December 28, 2013, 04:23:30 pm ---Also is there anyway to revert the options if I need to send in for repair?
--- End quote ---
Use the SCPI command ":SYSTem:OPTion:UNINSTall" to remove installed option keys again. Search this topic for :SYSTem:OPTion:UNINSTall
--- End quote ---

--- End quote ---

Sorry, I thought the 100mhz was a different animal. So that command will remove all options (keys) at once? thanks

neamyalo:

--- Quote from: alank2 on December 28, 2013, 08:12:23 pm ---neamyalo thank you for your work - would you be willing to upgrade to the latest firmware and repeat the full dump?

Your dump says it is 00.02.00.00.04 and the latest fw I know of is 00.02.01.00.03.

Thanks!

--- End quote ---

Hi Alan, no problem with the dumps so far - my pleasure - but I'd rather not do another if I can help it - my JTAG link's so slow (its 14 hours of continuous dumping just for one snapshot).

I think S/W 00.02.00.00.04 will be good enough for our purposes  ;) Also, let's see how tirulerbach gets on - it sounds like his link is blazing @ 50 kB/s  8)

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