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Sniffing the Rigol's internal I2C bus

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AndersAnd:

--- Quote from: granz on January 14, 2014, 02:06:54 am ---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?
--- End quote ---
What about all the other options like CAN decoder bigger memory etc.? Were they not enabled with NSFH either?

granz:
All trigger/decoder options including CAN were enabled with NSFH, I can't remember about the sample mem (but I think no), but there was definitely no BANDWIDTH option installed like there is now with NSEQ.  Essentially all NSFH did was remove the trial periods which hadn't yet expired.  Looking back I wish I had taken a screenshot.  I was mostly interested in seeing the 2ns and 1ns TBs and the 100 BW limit, which didn't become available until I used NSEQ (but no 1ns TB).

Hope that helps.

Is there anything known about the SMD jumpers and what they effect?  (Sorry if it's listed elsewhere)

battlefield:
So I'm having one problem with my jtag connection. I connect all the wires as shown in the schematic, using Olimex ARM-USB-OCD and then run the command buergi ran (sudo ./bfin-gdbproxy...) and I get the following in my console:

--- Code: ---debug:     bfin: bfin_open ()
Found USB cable: ARM-USB-OCD
Connected to libftdi driver.
warning: TDO seems to be stuck at 0
error:     bfin: detecting parts failed
debug:     bfin: bfin_open ()
Found USB cable: ARM-USB-OCD
error: Couldn't connect to suitable USB device.
error:     bfin: cable initialization failed
--- End code ---

Also when I plug my JTAG cable in my computer the led turns green and as soon as I run the command it turns red. I'm using linux 12.04 LTS x64

Flipp:

--- Quote from: battlefield on January 14, 2014, 04:57:16 pm ---So I'm having one problem with my jtag connection. I connect all the wires as shown in the schematic, using Olimex ARM-USB-OCD and then run the command buergi ran (sudo ./bfin-gdbproxy...) and I get the following in my console:

--- Code: ---debug:     bfin: bfin_open ()
Found USB cable: ARM-USB-OCD
Connected to libftdi driver.
warning: TDO seems to be stuck at 0
error:     bfin: detecting parts failed
debug:     bfin: bfin_open ()
Found USB cable: ARM-USB-OCD
error: Couldn't connect to suitable USB device.
error:     bfin: cable initialization failed
--- End code ---

Also when I plug my JTAG cable in my computer the led turns green and as soon as I run the command it turns red. I'm using linux 12.04 LTS x64

--- End quote ---

Is there any difference, if you do not connect the jtag side of the Olimex to anything? Is it possible to create a "working" jtag chain without any devices by shorting tdi and tdo pins together? Sounds like you have a break in the jtag chain or a fried input chip on your adapter.

Flip

battlefield:
Nope, all the same no matter what I do -.-

Edit after shorting TDI and TDO and apllying 3.3V to VREF pin I got this

--- Code: ---debug:     bfin: bfin_open ()
Found USB cable: ARM-USB-OCD
Connected to libftdi driver.
error:     bfin: detecting parts failed
debug:     bfin: bfin_open ()
Found USB cable: ARM-USB-OCD
error: Couldn't connect to suitable USB device.
error:     bfin: cable initialization failed
--- End code ---

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