| Products > Test Equipment |
| FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator |
| << < (430/450) > >> |
| rhb:
--- Quote from: Prehistoricman on December 09, 2019, 05:33:00 am ---Did you guys ever extract the built-in firmware? I found this paper that extracted firmware from an STM32F1 series MCU 'easily': https://tches.iacr.org/index.php/TCHES/article/download/7390/6562/ Page 9/10 (207/208) Sounds like a fun project. Edit: And by an interesting coincidence, this paper specifies a FeelTech unit for generating their attack glitches. --- End quote --- That attack was tried and did not work on this device. You can find the details back around pp 15-20 of this thread. I'm a bit surprised that predistortion of the waveform never came up in this thread that I recall. Though I have *not* read all of it. I recently bought a text on the use of predistorted waveforms for generating RF which is very important to cellular operations. Have Fun! Reg |
| Prehistoricman:
--- Quote from: rhb on December 26, 2019, 01:16:26 am ---That attack was tried and did not work on this device. You can find the details back around pp 15-20 of this thread. --- End quote --- Really? I took a look at those pages and didn't see anything about it. I saw references to the Fraunhofer attack (which doesn't work on this STM32F1) but not the one I found. |
| JohnCompter:
The 60 Mhz is valid for a sine wave, but the other wave forms tend to have a sine wave form also at 60 Mhz. The output is very sensitive for grounding currents. I lost a number of steps is the output attenuator by grounding currents. The interface to a PC works well, but one has to climb a steep hill before the communication between PC and waveform generator operates well. I did not found a way to transfer a waveform, made in e.g. Mathematica, in a intelligent way to the FY6800. Copy-past was the only way. Cheap is true, but that is what you notice when you buy it. The quality belonging to cheap you will notice for ever. |
| CDaniel:
If you read the specs , the other waveforms are not specified up to 60MHz ... this is normal for every such generator , even expensive . |
| rhb:
--- Quote from: Prehistoricman on December 28, 2019, 10:18:49 pm --- --- Quote from: rhb on December 26, 2019, 01:16:26 am ---That attack was tried and did not work on this device. You can find the details back around pp 15-20 of this thread. --- End quote --- Really? I took a look at those pages and didn't see anything about it. I saw references to the Fraunhofer attack (which doesn't work on this STM32F1) but not the one I found. --- End quote --- Sorry. I thought it was the same paper. IIRC CyberMaus did all the work on that. |
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