cnvogel

37 ms·

301.
by cnvogel 11y ago
Ok, if you want something off the shelf, then there are things like this: https://www.meinbergglobal.com/english/products/pci-express-... But I don't know what functionality they actually provide available ov
302.
by cnvogel 11y ago
The most straightforward thing is to just run the CPU with an accurate clock frequency. You'll have to replace the Quartz next to the clock-generation chip next to your CPU/Chipset by something which is very accurate. http:/
303.
by cnvogel 11y ago
> To put it a bit more bluntly: when you're writing in Asm on a > machine running DOS, and any bug is probably going to make you > reboot, you quickly tire of hitting the reset button and learn > to think more carefully abo
304.
by cnvogel 11y ago
> What sort of programmer writes code to The sort of programmer who's not passionate about how the code looks, or works, as long as it passes the (very rudimentary) tests which don't cover protocol violations or borderline case
305.
by cnvogel 11y ago
Also don't expect this "hypervisor" to be a complete software package like Xen or VMware. I'm speculating here, but all that's needed is a rather fixed allocation of peripherals, interrupts and RAM for each guest (r
306.
by cnvogel 11y ago
My guess is, the leap second will be inserted, just as scheduled. And you'll get the famous message in your kernel log (dmesg): http://lxr.free-electrons.com/source/kernel/time/ntp.c?v=2.6... Clock
307.
by cnvogel 11y ago
Oh, the memories. Haven't used CINT (or rather, root) for quite some time, though. But if I remember correctly, then CINT wasn't actually developed by the root-team, but rather already existed when work on root started.
308.
by cnvogel 11y ago
$ gpg --export -a $$KEYID$$ >keyfile.asc $ gpg --list-packets --debug=0x02 keyfile.asc ...but I don't know if the pkey[] values are directly usable, or have some substructure.
309.
by cnvogel 11y ago
> like, hey lets meet up here at time x. in two days > that means nothing significant. It might still be significant in the far future that you have met a particular person on May, 19th 2015!
310.
by cnvogel 11y ago
I'm completely aware of the fact that SCTP isn't in the native Windows networking stack, and I'll take your word that it's not in OSX. But as long as we put up all these Frankenstein solutions of handling things up-in-th
311.
by cnvogel 11y ago
> I'm curious why it ended up in HTTP instead of TCP. ...or just run HTTP over SCTP. http://en.wikipedia.org/wiki/Stream_Control_Transmission_Pro...
312.
by cnvogel 11y ago
I see what you're getting at. But I also am convinced that, would you present this on public television or anything with a similar broad distribution, you'd persuade many people to support civil forfeiture (or the NSA dragnet), b
313.
by cnvogel 11y ago
> some bargain bin cables from RadioShack Those cables tend to be really shitty. Especially cheap RCA cables are prone to intermittent contacts, after having been plugged/unplugged a few times. Get decent cables from a reputable sou
314.
by cnvogel 11y ago
> You make it sound like $10 of electronics would give great sound No, that's not what I wanted to convey. But if you get yourself $100/€100 90s HiFi Amps on eBay, you are pretty much there, in my opinion for domestic HiFi use.
315.
by cnvogel 11y ago
> From my poor knowledge of music production, in that > world "high end" equipment means "as close to truth > as possible", Yes, and no... Because it seems to mean "as close to truth as po
316.
by cnvogel 11y ago
If you ask that way, I'd guess the answer is: For any network storage array there are at least a few on-premise buyer that trust this particular product. I guess that there are an awful lot of companies that, out of desire to save a fe
317.
by cnvogel 11y ago
According to wikipedia, the diameter of natural spider silk is 4µm, which is a cross section area of 1.26e-11 m². Multiplied by the tensile strength of natural spider silk (5.4 GPa) gives the capacity to lift 68 milinewtoms, or 7 Grams! ht
318.
by cnvogel 11y ago
Interestingly the spider silk of 5.4 GPa has higher tensile strength than the specimens of "pure" carbon nanotubes of 2cm measured in labs at 3.6 GPa. The theoretical limit of cabon nanotubes is said to be at 300 GPa, and it'
319.
by cnvogel 11y ago
Indeed, yes, it's astonishing. 5cm, for an object 20'000 km above ground. http://ccar.colorado.edu/asen5050/projects/projects_2008/xia... The satellite position and clock correction are similar in s
320.
by cnvogel 11y ago
...they could at least have used a proper example. Their "squiggly sine lines" don't make sense at all: """But add them together, and that pleasant sounding chord actually looks altogether more messy, like this
321.
by cnvogel 11y ago
That's satire, right? Right? ❝the likelihood of the element 'Sky' being recognised within the word element 'Skype', for clouds are to be found 'in the sky' and thus may readily be associated with the word
322.
by cnvogel 11y ago
...well, then my irony-detector is broken ;-).
323.
by cnvogel 11y ago
On the assumption that there's a complicated control algorithm which, unfortunately, does arithmetic on (now-then) tick-values everywhere... but this algorithm has been extensively validated to be correct on the non-overflowing case, a
324.
by cnvogel 11y ago
The concept of timer "ticks" is well established as a unit of time in embeded programming, it's almost universally included in your embedded (realtime-)OS and might increase at any conceivable rate, both limited by the hardwa
325.
by cnvogel 11y ago
As you have written, a formal test/analysis will always detect that a monotonously increased tick counter will not be bound by an upper limit. And the obvious solution is that you don't rely on such a thing, but define your API su
326.
by cnvogel 11y ago
http://www.gnss-sdr.org/ claims to be able to work with RTLSDR dongles (cost ~$10 and provides 3,2 MHz Bandwidth. Original article's "homemade GPS" has 2,5 MHz BW). Also: http://www.rtl-sdr.com&#x2
327.
by cnvogel 11y ago
If 1000 lines of Verilog code (or a little bit of patching in a commercial receiver's firmware, for that matter) is the only thing missing from the terrorists having a working cruise missile, then we're screwed anyway... Personall
328.
by cnvogel 11y ago
...so what's the checklist to mitigate the situation "the monitor which normally displays the checklist on this airplane failed"... :-)
329.
by cnvogel 11y ago
Normally you reach a decision on the kind of redundancy and technological diversity by looking at certain risks and then decide if you only need one, two of the same, or two or more of differently implemented/built devices using differ
330.
by cnvogel 12y ago
I like that the early prototype consists of a Car-HiFi-Amplifier and something made of Perfboard... [but of course, makes sense, in the end the HiFi Amp is just a pair of H-Bridges anyway, probably quite useful to pump rather low-frequency

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