Products > Test Equipment
Sniffing the Rigol's internal I2C bus
A Hellene:
--- Quote ---xray anyone?
--- End quote ---
An X-ray device or a hot-air rework station:
-George
Dave Turner:
A little while ago it was reported that the 500uV range, whilst possible to enable, doesn't in fact work on the DS1000Z series. Has anything further been discovered about this, or has it been decided that it is a hardware limit?
alank2:
--- Quote from: Dave Turner on December 10, 2013, 05:03:05 pm ---A little while ago it was reported that the 500uV range, whilst possible to enable, doesn't in fact work on the DS1000Z series. Has anything further been discovered about this, or has it been decided that it is a hardware limit?
--- End quote ---
I reported it; when enabled even after doing a cal, it was not usable. A disconnected channel would jump high or low off the screen.
NikWing:
--- Quote from: neslekkim on December 10, 2013, 01:14:03 pm ---but according to recent finds, one should think that is matter of minutes if just someone do an jtag dump of an A serie..
I'm definately going for the A(with s), but 100 or 200... that's the question..
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yeah, that's what I hope and the reason I ask :)
there shouldn't be a difference between 100 and 200, right? since it's software-lock
but I also read about unlocking it to 300, but the bw filter menu won't show that setting, it seems
I can help out with jtag data, if someone tells me exactly what to do (so that I won't fry anything or lose warranty, I don't want to lose 3 years, you know ^^)
I never worked with jtag interface before, but AFAIK we have an atmel one flying around at work and I can use that if needed
but at first I have to get the DSO, one of 2 shops says available next year, the other shop writes something about the 16th this month, but I got no reply yet ...
edit: by the way, if (quoting marmad:) "There is no distinction between 'non-A' and 'A' firmware", what about the S-models? Is the key/button, that enables the waveform generator on the S-model, hidden on the non-S-devices? if it is, what happens, if you trigger it by shorting the contact area on the PCB?
AndersAnd:
--- Quote from: NikWing on December 10, 2013, 05:10:34 pm ---but I also read about unlocking it to 300, but the bw filter menu won't show that setting, it seems
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It's not supposed to. BW limit filters in scopes are low pass filters you can activate to reduce the full BW of the scope. Without BW limit activated, you get the full specified BW of the scope so there should be no 300 MHz option on a 300 MHz model, just like there's no 200 MHz option on a 200 MHz model or a 100 MHz option on a 100 MHz model. You'll only see selected BW options below the scopes full BW.
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