bunnie

9 ms·

61.
by bunnie 2y ago
I'm glad I'm not the only one who was weirded out by the glossing over of the "it's better in the 20-40MHz range, I guess?" punch line. That's kind of exactly the frequency band where you need the reinforcement
62.
by bunnie 2y ago
Hmm the usual solution in this case is to put a FET to ground that is turned on when the standby signal goes active. The reason you need such a low impedance is that a linear resistance pulls less current as the voltage goes down so the sol
63.
by bunnie 2y ago
Reading the thread it looks like the issue is leakage power on the internal 3.3v line. When the system is off 1.9v is still present. This is not uncommon, although 1.9v is a bit high. A lot of laptops have explicit active pull downs on powe
64.
by bunnie 2y ago
I found it useful, so I'm glad I found it here.
65.
by bunnie 2y ago
...but a generation of engineers trained to answer questions like ChatGPT...
66.
by bunnie 2y ago
I have a funny anecdote from a colleague of mine who is a university professor. She showed me some hand-written answers of students on a closed-book, no-device test. The question was something to the effect of, "if I had voltage source
67.
by bunnie 2y ago
Amazing work, thanks for sharing it! It warms my heart to see someone still hacking on the device after...13 years. It was a crazy idea to open source it back then, but seeing it pop up in the wild long after the company went away is some v
68.
by bunnie 2y ago
Yah, that's it.
69.
by bunnie 2y ago
I get it from all walks of life -- industry peeps, colleagues, academics, concerned friends and family. I didn't always have a rep -- the first step is the hardest in any journey, and the criticism was just as strong (if not stronger)
70.
by bunnie 2y ago
I think maybe it's the case that the VC's biggest competition for top talent and good ideas are from the innovators that they hope to invest in. If they encourage a thousand lifestyle business bloom, one might turn into a boot-str
71.
by bunnie 2y ago
The bit about "lifestyle business" always being uttered in contempt resonated with me. I always assumed it was just me being overly sensitive to folks expressing concern over my life choices, urging me to snap out of my "mid-
72.
by bunnie 2y ago
Not exactly a fair comparison - the design is limited to run models that can fit entirely in on chip RAM for the FPGA. This greatly reduces power consumption because the FPGA does not have to pay the overhead of DRAM PHY's, termination
73.
by bunnie 2y ago
Actually there is some image stacking and averaging happening because there's a lot of overlap between the images, and some trials were done with 4x oversampling and averaging. Probably the next thing to do is to put a diffuser on the
74.
by bunnie 2y ago
I'm not sure of the physics reason why, but X-ray images don't have the resolution. You would think they would because X-rays have a much shorter wavelength, but I think it has to do with the fact that you're dealing with a p
75.
by bunnie 2y ago
The technique looks from the "bottom" side of the chip -- so the imaged elements are mostly "metal 1", e.g. the layer of metal that is directly connected to the transistors. Inserting a dummy layer in between the transis
76.
by bunnie 3y ago
You guessed right -- mirrors are expensive, and also heavy; plus it's yet another piece to align (in infrared, so you can't use unaided vision to align the optics; yes, you can use a coaxial visible beam to help with this but that
77.
by bunnie 3y ago
The technique only works on CSP and flip-chip packaged devices. These are chips that are basically bare silicon die that are bonded onto PCBs or substrates. This package type is fairly popular in mobile phones and many types of CPUs. The te
78.
by bunnie 3y ago
Looks like I had a power outage, but the site should be back.
79.
by bunnie 3y ago
BTW, if anyone has questions about the project I will be giving an NLnet webinar Q&A on May 2, 11.00 - 12.00 CEST. Details at: https://nlnet.nl/webinars/ (you should also check out Charles Papon's webinar tomo
80.
by bunnie 3y ago
Oh no! Ross Anderson was a legend and his work heavily influenced my professional career. He will be missed. May he rest in peace.
81.
by bunnie 3y ago
I feel like the analogy does not quite hold because when the junk debt was vendored in, the maintainer actually has more knobs than before to fix the problems - and if it's as easy as bumping some dependencies and fixing a few method s
82.
by bunnie 3y ago
Correct, with the implication that by creating incentives to bundle junk tech debt into 'AAA' packages (packages with good reputation), the Rust ecosystem is heading for a bubble (and eventually a collapse) because the rating agen
83.
by bunnie 3y ago
Maybe I'm old fashioned but one of the biggest barriers for me adopting VR/AR is there isn't a socially acceptable way to "duck out" of a VR experience you're just not into. I've been given a couple of dem
84.
by bunnie 3y ago
+1 on concerns about verilator not supporting X prop. Definitely a big difference between FPGA and ASICs. The lack of X-prop in verilator is one of the reasons why a lot of OSS hardware designs are risky or unsuitable for ASIC integration..
85.
by bunnie 3y ago
Generally the limiting factor for approaching the asymptote you observe is power. There is a figure of merit with units of Joules per bit per second that gets worse - much worse - as you start to get fancier with your modulation. Most of th
86.
by bunnie 3y ago
I like to state this in the inverse, as the engineer's paradox: "A good engineer believes their purpose is to solve their problem so effectively that their position is no longer relevant to the organization". Which leads to t
87.
by bunnie 3y ago
I think the title buries the lede... FTA, the cranes have sensors that can track the origin and destination of a container. The US military, which reasonably would want to unload cargo at any port in the USA, does not want their logistics t
88.
by bunnie 3y ago
I think the term has evolved on an arc similar to how the term 'hacker' evolved from the 1960's until now - from curiosity, to derogatory, to underdog, to cultural phenomenon, to a category label that is used and misused as a
89.
by bunnie 3y ago
Really minor nit, but the comments in this thread refer to the PI as a 'he' or 'him'. The PI is Rosalind A. Coleman. I did not thoroughly investigate the preferred pronouns of this individual but canonically Rosalind wou
90.
by bunnie 3y ago
Ah yes. The Precursor is real now, you can read more at https://precursor.dev . As a baseline it can function as a password/authentication token manager, but as another user mentioned we're adding messaging features now

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