| Products > Test Equipment |
| Sniffing the Rigol's internal I2C bus |
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| salvix:
--- Quote from: houly on August 17, 2014, 09:44:57 am ---Hello all, I'm plainning to buy a MSO4000 series wand i would want to know if the hack could work on it (in order to choose the 100 MHz and hope hack it to have more bandwidth) is it possible ? and how ? regards --- End quote --- Yes. Install MrKrabs firmware from http://gotroot.ca/rigol/. |
| Gandalf_Sr:
@0xPIT I'm having exactly the same issues you described in your reply #3478. I'm trying to dump the memory from my MSO2072A using Ubuntu on a Dell Netbook, it always finishes with 'Reply contains invalid hex digit 116' For us non-Linux literate folks, would you mind expanding on where to find the log file and the exact lines for using the AWK instructions? Thanks [Edit] My latest attempt finished as 0xPIT said, again with the 116 error and then I closed the terminal but I can't find the tmp/log file on the drive anywhere. Any idea where it's supposed to be or how I can find it? [Edit2] I am thinking of getting a different USB-JTAG debugger. The Olimex vn seems expensive at $70 given the chip is <$3, any suggestions for a good FT2232-based programmer that is supported by urJTAG? |
| 0xPIT:
@Gandalr_Sr I described the procedure in my post. You need to specify the location of the log file in gdb using e.g. set remotelogfile /tmp/log it will save the log to the file named "log" in the folder /tmp. Then you need to clean the log file. First, you want only lines received, which start with "+r $" awk '/+r\ $/' /tmp/log > /tmp/filtered.log Second, we strip all the "+r $" cat /tmp/filtered.log | sed 's/^+r\ $//' > /tmp/cleaned.log then use convert to binary using xxd -p -r /tmp/cleaned.log /tmp/dump.bin If in doubt, consult the man pages (man <command>) or google for it. Be aware that I'm on the road, you need to double-check escaping of the commands I suggested. |
| Gandalf_Sr:
@0xPIT Thanks for the clarifications, I'm now pretty sure that the reason I've failed so far to dump successfully from my MSO2072A is that the cheap $7 'Altera' USB Blaster from eBay only supports a frequency of 12 MHz, (gdb) tell me that after I execute the command that's supposed to set the frequency. Now I'm waiting for the Sparkfun FT2232-based device to arrive. |
| xd1217:
--- Quote from: PepeK on August 12, 2014, 09:40:47 am ---As the latest DS / MSO 2072 having SW 3.0 SP1 and HW 2.2 refuses patched firmware gel file ver 2, what about modifying the gel file to pretend it is ver 3 ? Is there something like header / data structure in the first block of the gel file which defines version ? I am asking because if I open any (2.0 or 3.0) gel file in hex editor, there is a version string at the beginning. --- End quote --- Did you sort it out?? |
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