Products > Test Equipment
Sniffing the Rigol's internal I2C bus
granz:
Actually, I tried that first. It took the key but nothing happened except that the decode options were unlocked. The model # stayed the same in system info and I didn't get the 2ns time base option, so I assumed it didn't take.
marmad:
--- Quote from: granz on January 14, 2014, 01:33:01 am ---Actually, I tried that first. It took the key but nothing happened except that the decode options were unlocked. The model # stayed the same in system info and I didn't get the 2ns time base option, so I assumed it didn't take.
--- End quote ---
2ns time base is already available on DS2202 models (as well as 100M BW limit). 1ns time base becomes available when 300MHz is unlocked.
granz:
Yes, I understand that 2ns is normally available on DS2202 models, but mine started as a DS2072A with 5ns as the fastest timebase. What I meant was that I first tried the 300MHz key, but still had only 5ns TB (no 2ns or 1ns) and no model number change (still claimed DS2072A). When I then tried the 200MHz key it converted to a DS2202A with 2ns TB. I didn't try the 300MHz key again after already converting it to a DS2202A, but maybe I should?
Tirulerbach can probably comment more, but he did say the 300MHz option was absolutely untested...
AndersAnd:
--- Quote from: granz on January 14, 2014, 01:33:01 am ---Actually, I tried that first. It took the key but nothing happened except that the decode options were unlocked. The model # stayed the same in system info and I didn't get the 2ns time base option, so I assumed it didn't take.
--- End quote ---
So the 4 letter options you have tried are NSEQ and NSFH?
--- Quote from: tirulerbach on January 11, 2014, 04:33:34 pm ---For a appetizer look at the screenshot. Total running time is about 300ms... O0
--- End quote ---
granz:
Exactly. I went with NSFH first and although it didn't reject the key, nothing happened (no model# change, still stuck at 5ns, no 100 MHz BW limit). I guess this confirms that it doesn't work at this point?
I then went with NSEQ and that worked as expected (100 MHz BW, 2ns, model# change+plus shows 200MHZ installed option).
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