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| Sniffing the Rigol's internal I2C bus |
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| neslekkim:
Did you read the guide at all? "Ignore the confusing pin UTST I guess cybernet used it just to probe the voltage." |
| NikWing:
don't laugh, I stopped reading after "have an ARM 20 pin connector" ... :-DD ok, so my cable is done ^^ |
| sled:
--- Quote from: Rigby on January 02, 2014, 01:56:52 pm ---Rigol can't afford to ignore the hacks, but they would be wise to view them as an opportunity rather than an attack. It would be very wise for us if we did not bite the hand that feeds us by making the hacks too easy to use. There needs to be a minimum amount of skill required to accomplish the hacks. I don't know what this skill level should be, but making web apps capable of providing valid keys by providing a serial number and a four character option code is definitely something that I would consider "biting the hand that feeds us." --- End quote --- Exactly what happened, the skill level required is to dump the memory via JTAG ;) |
| granz:
I'm somewhat amazed at the confusion involving JTAG. The original DS2k pinout image is confusing. It makes it look like you need to APPLY 3.3V to what he labeled as UTST (wrong label) from another point on the board. Do NOT do this, because you may be tying two separate regulated outputs together on the RIGOL board. I've reworked the JTAG image to show how you should be connecting your JTAG adapter. If the tutorial author is reading, the tutorial should be corrected. Be sure to check the signal levels on your JTAG adapter before attaching anything, some don't use a VREF voltage and have a jumper or something instead to set the levels. Much older JTAG adapters especially might use 5V. Everyone obviously has a scope, so it only takes a few minutes to be safe if you are just using something you had lying around. |
| NikWing:
I still don't understand the connection XD what's high-Z output and what to attach there? so I HAVE to connect to Vref from the jtag lik eI thought before? linux is a PITA atm, it's not that simple to run the bfin program as written in the how-to it's missing additional software -_-; glibc, I have 2.13 here ... it needs 2.14 and/or 2.15 -_- |
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