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Posts posted by Lain__D
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Nevermind I answered my own question by learning how the mm command works and why it has so much overhead and why you were requesting the loadb feature for U-Boot...as that would be able to send the binary out at the actual baud rate
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Hi! I'm Danielle from NYC.
I've been into Hacking since I was is middle-school when me and my friends used to mess with payphones in the 90s and write stupid little programs in q-basic. I used to mess around with config and registry files back in the day to make demo software work in full-mode, I didn't even realize that was hacking lol.
Unfortunately my parents weren't super keen on computers, so I feel like I was a bit behind when it came to learning about what actually is happening on the metal.
I do interactive broadcasting for a major cable network, mostly working in Python and NodeJS, with my best friend ffmpeg. I've been considering a switch into info sec for a long time. A few years ago I applied to work for a cybersecurity company via a hidden job posting in a crypto. They hired the top 2 people, and I came in 3rd place, which I was really proud of myself considering I have no formal training (and learned GoLang in a week for the test)
I've been spending COVID refining my skills and I plan on reaching out to that company again...would love to talk to people about using infosec and cybersecurity to make the world a more inclusive, fair, and open place.
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@Doridian Interesting!! Shows how little I know about rs-232....if you have a second would you mind teaching me something?
With the baud rate of the owl being 115200bits per second, and the signal owl having a total flash size of 16MB, and then multiplied by 8 because of the TTL information, so 1024000000 bits total, my math says that should take about 2 and a half hours? I'm assuming I'm missing some sort of other information that's included in each transaction that's taking up a lot of the bits, but what is that overhead? do you know?
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Thank you @Doridian for posting the node script to manually flash the ROM. I corrupted my file system trying to get my GPS dongle to work and mounting it to the "wrong" folder. I'm currenting using the script to "restore" my owl now...I'm glad I had an extra FT232 laying around from another project.
Question for you @Doridian I know Node pretty well, but not the serial library, so excuse me if this is a dumb question, but wouldn't the script run significantly faster if you didn't push each data write to the stdout...AFAIK node.js does not have a write buffer for output to the console, and even though its non-blocking constantly writing each piece of data received to the stdout could still significantly slow down the process. I wasn't brave enough to try this myself though, yet, I just want my owl to work again.
Recovery / Reset
in Signal Owl
Posted
it WORKED!! Thank you @Doridian