kosma

11 ms·

91.
by kosma 9y ago
Coming from professional environment, my only question is: where's FreeRTOS integration?
92.
by kosma 9y ago
Talk is cheap; show me the code. There's a lot of talk about rewriting some crucial pieces in Rust but no actual work to follow it.
93.
by kosma 9y ago
OT: This has been parodied at least once; see Stackenblochen[1]. [1] https://www.youtube.com/watch?v=QEN5-_93gQg
94.
by kosma 9y ago
Until there is some kind of law in place that makes companies financially responsible for this kind of blunder, it will proliferate. In the current state of affairs it's simply not economically justified to implement proper security.
95.
by kosma 9y ago
RTL-SDR is the Arduino of EMC work. :)
96.
by kosma 9y ago
A bare, free-floating STM32F103 with literally nothing but a LiPo battery connected with two wires, running the blinky.c demo, will completely jam many GPS receivers when placed next to the antenna.
97.
by kosma 9y ago
There's one thing about EFM8 that you simply cannot beat: price. We're using them in several product lines and aside from some minor errata, our experience has been very good. When it comes to doing simple real-time control (PWM a
98.
by kosma 9y ago
I once had to debug a poorly-designed board where the CPU would lock up if you did a DRAM burst write with at least 3 of the 5 highest bits of the word set (yes, I narrowed the test case down that far). A quick look at the layout confirmed
99.
by kosma 9y ago
> 10. "Where is my chip lab grade oscilloscope?" 11. "Shit, where do I borrow a spectrum analyzer and a set of near field probes? These things cost an arm and a leg!" Yes, STM32F1 MCUs generate inference that jams GPS
100.
by kosma 9y ago
I once worked on a rather convoluted bunch of microservices where 40% of CPU time was spend inside cJSON library. Cap'n Proto does exactly what you propose - sends bytes over, except in a documented, organized, forward- and backward-co
101.
by kosma 10y ago
I used this exact approach just yesterday when I needed to calculate some sine values on an 8-bit MCU. Turns out including a precalculated table takes way less program memory than linking softfloat and trig libraries. 8051 is not dead, folk
102.
by kosma 10y ago
I just realized I'm running on 3.x.x too, there was no update notification. If that's how this company treats security, then this is game over for me. I've been planning to switch to 1Password for a long time; seems like the
103.
by kosma 10y ago
In my experience, using a substance as a form of relief, in any amount, prevents developing healthy coping mechanisms. More often than not quitting is not enough - it takes lots of reading, therapy, experience and time to find and learn a n
104.
by kosma 10y ago
Surprisingly, Adderall doesn't have a significant physical addiction potential. I suppose you could get psychologically addicted if you used it recreationally but I've never met anyone who had. The XR (extended release) version is
105.
by kosma 10y ago
> Do you know if those on the autistic spectrum ever date within themselves and how it works out? I know for others diseases, it can turn into a nightmare (only if both haven't developed coping techniques), though not always. Yes, t
106.
by kosma 10y ago
I'm not exactly comfortable talking about my sex life on a public forum (even though the answer is "completely ordinary"). What I'm going to say instead is that, from my observation, many men on the spectrum have problem
107.
by kosma 10y ago
This is not the full story. Alcohol provides some other "benefits" (quotes intentional) for those on the autism spectrum: * Alleviates sensory problems. I used to get hammered before heading out for the city; it was the only way t
108.
by kosma 10y ago
Alcohol, drugs and sex on autism spectrum are still largely a taboo among mental health professionals, hence the lack of results. For many on the autism spectrum, it works out just as the article says: > Many people with autism have a p
109.
by kosma 10y ago
I'm an embedded engineer, and we have those "do not clean" stickers we put on our desks. I'd rather wipe my own desk on my own schedule than have a cleaner accidentally disturb some RF equipment or spill SMD components.
110.
by kosma 10y ago
If Facebook indeed does this, it should be fairly easy to trigger by repeatedly mentioning some kind of product in front of a running Facebook app. If not, it's a "can't reproduce" for me.
111.
by kosma 10y ago
Right. Still, the fact that local variables aren't stack- but overlay- based is enough to blow my mind.
112.
by kosma 10y ago
> Smart people end up having to run SmartPerson + NormalPersonVM(pre-alpha) in parallel. This sounds a lot like autism spectrum disorder. Only some smart people work this way; for others, the social mechanisms are intact and operate no
113.
by kosma 10y ago
It's still a decent machine for C especially when compared with, say, 8051. I'm currently developing an entire product line based on a '51 derivative and just seeing what kind of assembly Keil C51 compiler produces is enough
114.
by kosma 10y ago
> Not saying it's good practice to be using malloc() in this environment but you'll get away with it. Actually, for the sake of keeping code modular and portable, it's fine to malloc() once on boot and never free(). It&#x2
115.
by kosma 10y ago
Consider it yourself: what kind of math can you do in 16 bytes of RAM? What kind of control? I suppose you can fit some running average, statistics, logic equations, maybe even PID would fit. A single for loop takes just one byte. These 1
116.
by kosma 10y ago
> For most users, however, you’ll probably find it costs you around $10 per month to maintain the Usenet service in this manner. Which is more than a dedicated cloud backup service like Backblaze or Crashplan. Genius.
117.
by kosma 10y ago
Did you mean "your hot dead hands", heated by all that dissipated power? ;)
118.
by kosma 10y ago
I'm going to keep it short and sweet - not because I don't care; conversely: I do and I want to get the message through. This is an "I'm an old hacker and I'm here to set your straight" message and it's no
119.
by kosma 10y ago
Have you actually asked them about the specific reasons for rejection? FWIW, there's a multitude of reasons why one could get rejected, ranging from automated systems to the position just getting filled to being too good for the job to
120.
by kosma 10y ago
It was a badly run organization - and, as an extension, bad management, bad developers, bad process, bad requirements and bad practices. It wasn't trunk-only that made the project grind to a screeching halt - it was people.

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