I guess there is nothing that can be done with the DS1102E it seems like it's already a Hacked DS1052E.
jtag> cable arm-usb-ocd
Connected to libftdi driver.
jtag> frequency 5000000
Setting TCK frequency to 5000000 Hz
jtag> detect
IR length: 5
Chain length: 1
Device Id: 00100010011111100100000011001011 (0x227E40CB)
Manufacturer: Analog Devices, Inc. (0x0CB)
Part(0): BF526 (0x27E4)
Stepping: 2
Filename: /usr/share/urjtag/analog/bf527/bf527
warning: ARM-USB-OCD: untested cable, set wait_clocks to 30
It turns out that my JLink/urjtag connection is not hanging, instead its just going really really slow
I've set the frequency to 6 MHz, but its so slow its more like a few kHz (I would check with my scope but the CPU is halted....)
The main problem is the SDRAM - I'm currently trying to dump the full SDRAM address space (128 MB) and its only 1% through after 30 minutes - its going to take too long.... (50hrs?)
On the board it looks as though there's only a single 32 MB SDRAM chip connected to the bf526. I'm gonna assume that its address range is 0x0000 0000 to 0x01FF FFFF and limit the SDRAM dump to that instead.
Sorry for the bad news, but I'm goin to persevere and will let you know how it goes.
If anyone has a J-Link running with urjtag at a decent speed let me know!
If someone provided already a dump from a scope from the same week like yours, it is not necessary to do this dump.
In this case be nice to tirulerbach or zombie28 and ask for a key.
When I then tried the 200MHz key it converted to a DS2202A with 2ns TB.
Tirulerbach can probably comment more, but he did say the 300MHz option was absolutely untested...
BTW. I just found out that my DS2072A is another 42nd weeks product just like tirolerbachs DS2202A is one. It would be nice to know if the private keys they used are consistent over the DS2kA series within every production week, wouldn`t it?
but IF there's a way for me to read out a memdump and real good fool-proof instruction for complete jtag noobs who are scared to break the device, I'll try my best to get one >_>
What is the behavior of non-A-models on bandwidth upgrades?
and maybe I need linux, but that can be done in an VM using virtualbox or something I guess, no need for an separate computer.
A live CD, live DVD, or live disc is a complete bootable computer installation including operating system which runs in a computer's memory, rather than loading from a hard disk drive; the CD itself is read-only. It allows users to run an operating system for any purpose without installing it or making any changes to the computer's configuration. Live CDs can run on a computer without secondary storage, such as a hard disk drive, or with a corrupted hard disk drive or file system, allowing data recovery.
Only thing I need, is to find out which pins on my ftdi2232h breakout (dangerousprototypes) I need to connect to jtag..
and maybe I need linux, but that can be done in an VM using virtualbox or something I guess, no need for an separate computer.
Q1) For my understanding, is DS2072A much improved or only improvement on internal impedance switch?
Q2) Or is the overall design improved?
Q3) I would like to see summary table with difference between DS2072 HW1, DS2072 HW2 and DS2072A to get overall picture all at once.
Q4) Can DS2072 HW version 1 be upgraded to 200 MHz only or up to 300MHz?
Q5) Verified with actual measurements on scope to double check if it really works and not only in GUI?
Q6) Which decoding/memory options can be added?
Q7) Can DS2072 HW version 2 be upgraded to 200 MHz only or up to 300MHz?
Q8) Verified with actual measurements on scope to double check if it really works and not only in GUI?
Q9) Which decoding/memory options can be added?
Q10) Can DS2072A be upgraded to 200 MHz only or up to 300MHz?
Q11) Verified with actual measurements on scope to double check if it really works and not only in GUI?
Q12) Which decoding/memory options can be added?
Q13) I need to know if DS2072A can be made 100% same as DS2302A.
Q14) Did anyone do visual inspection of actual PCB boards between DS2072 and DS2302?
Q15) Did anyone do visual inspection of actual PCB boards between DS2072A and DS2302A?
Given that people open up their scope for making memory dumps, visual inspection might be done at same time as well Of course I realize maybe nobody with a real DS2302 or DS2302A wants to open their big investment
The Swedish distributor sells the DS2302A:
http://www.instrumentcenter.se/sv/200-500-mhz-bandbredd/rigol-ds2302a-bandbredd-300mhz-2-kanaler-2gsas-minnesdjup-14mpts%28standard%29-56mpts%28option%29-50000-wfmss..php
No - you mean he "advertises" the DS2302A. He'll take your money for one, to be sure! But when will he deliver it? Since none of Rigol's BIG distributors (Tequipment in the US or Batronix here in the EU) - or even Rigol's OWN North American website - are offering them for sale yet, I somehow doubt your Swedish distributor has them in stock. I could be wrong - but if not, you're unlikely to find anyone who has bought one on this board.
A dump will help.
I have written an email to the distributor to confirm availability =) Will keep you updated!