| Products > Test Equipment |
| Agilent E7495 linux root account |
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| jujun:
Well, it's still a very useful tool :) If somebody in Europe owns an optional signal generator assembly and wants to sell it, PM me. thank you |
| jordi:
I'm very impressed with the worldwide collaboration here, thanks for the hard work. I got my hands on an "E7495B", but on arrival, I noticed the front label said "L4600A". I turned it on and it has a lot of the basic functions of the "E7495B", after some digging I find out that this unit is the military version (and has some tools to test their FM COM radios). The only item missing is the Power Meter, and I would like to know if I can activate it (and maybe apply the GPS patch). I'm happy to dump the entire flash here, as soon as my CF arrives. I'm attaching the technical overview of the L4600A and my version of my binary file of "elgato", which is different, my version seems to be newer? A07.24 Dev 6. All the offsets to apply the patches that are described here have different data. =( I wonder what they used to figure out the patching locations, IDA Pro? |
| PA0PBZ:
Hi jordi, It looks like the offset you are looking for in your elgato file is 0x0033E57C, replace 01 00 00 EA with 00 00 A0 E1. No warranties whatsoever but let us know if it worked. And yes, IDA :) |
| kirill_ka:
--- Quote from: jordi on July 05, 2020, 10:47:38 am --- The only item missing is the Power Meter, and I would like to know if I can activate it --- End quote --- The power meter feature requires at least 2 physical boards and 2 connectors (power reference and sensor). Do you have them? --- Quote from: jordi on July 05, 2020, 10:47:38 am --- I'm happy to dump the entire flash here, as soon as my CF arrives. --- End quote --- Please, do so. L4600A seems to have some useful signal generator features. It's likely that they can be used on the E7495. --- Quote from: jordi on July 05, 2020, 10:47:38 am ---I wonder what they used to figure out the patching locations, IDA Pro? --- End quote --- In my case (GPS patch) I don't remember actually :) Maybe just objdump -d or gdb running on the device or IDA... |
| kirill_ka:
--- Quote from: jordi on July 05, 2020, 10:47:38 am --- All the offsets to apply the patches that are described here have different data. =( --- End quote --- --- Code: ---$ bgrep "4b 25 85 e2 15 28 82 e2 f6 2d 82 e2" elgato elgato: 00123c4c ^^^^^^^^ --- End code --- So this should be the offset for the GPS patch. |
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