Products > Test Equipment
Sniffing the Rigol's internal I2C bus
<< < (384/899) > >>
eltar:

--- Quote from: eV1Te on December 12, 2013, 06:06:30 pm ---I will try it later tonight as well, just need to hack something together that generates a fast rising edges first, to test the 100 MHz with  :)

--- End quote ---

I can try it too. Is latest DS1000Z firmware 00.02.01.SP1 requested for unlocking 100MHz?
Do we have some info or change list for this firmware? Thanks :)
cybernet:

--- Quote from: NikWing on December 12, 2013, 06:14:11 pm ---btw, just out of curiosity: several pages ago I read something like "soon we'll have our own ..." ... was that about an own/altered/open source firmware?

--- End quote ---

the altered part we have (for DS2k/DS4k) - the own ... yeah maybe if somebody shoves the FPGA through an xray machine ;)
or somebody donates a broken one so i can rip it off. without FPGA traced out, its a bit hard to do.
NikWing:
hehe ok ok
like someone stated, it's really hard for a noob to read through this thread and sort all the infos :D
seronday:

--- Quote from: seronday on December 12, 2013, 01:36:11 pm ---Anyone who wants to change their new DS1074Z into a DS1104Z use the following Codes:-

DSHA  makes a  DS1104Z with no options enabled .
DSHR  makes a  DS1104Z with all options enabled .

The 3dB bandwidth for the DS1104Z is approx 160Mhz.
The 3dB bandwidth for the DS1074Z is approx 90Mhz.



--- End quote ---

Minor correction to my previous post after some further investigation.

DSHA also enables the 500uV setting and another unknown, (at present), option.

DSEA is the correct code to change to a DS1104Z only. ( no options ). See table below.

 Code      DS1104z    Unknown     500uV setting
DSBA                                               X
DSCA                            X
DSDA                            X                 X
DSEA           X
DSFA           X                                  X
DSGA           X               X
DSHA           X               X                 X

So to change a DS1074Z into a DS1104Z with all options enabled except the 500uV/div (which does not work correctly at present),
the code  will be DSER.

It is possible to revert back to original, by using the SCPI command " :SYSTem:OPTion:UNINSTall " .

As mentioned in my previous post, the measured 3dB down bandwidth after changing to a DS1104Z, is approx 160Mhz.
All the tests were done on a DS1074Z with Ver:00.02.00.SP1.
eV1Te:
Nice work with the reverse engineering of the options on the DS1000Z.  :-+

I enabled DSHR today and also noticed that the 500 uV mode is offset outside the screen (but fully functional i I move the trace back into view again). Byt my CH2 happens to have less than 1 div of offset. My guess is that the built in self.cal. does not adjust the 500 uV mode at all. So whatever settings are set by default in the firmware gets loaded, and it's just a matter of luck if that happens to be good or not.

Maybe it would be possible to access the self.cal. variables in memory somewhere and change the 500 uV offset values manually.

Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod