cnvogel

33 ms·

151.
by cnvogel 11y ago
Allwinner A20 has directly connected SATA.
152.
by cnvogel 11y ago
Oh, it's not only that you have "i5" CPUs spanning many years of iterations and different cores. You sometimes even have i5-<4digit> CPUs with a suffix: There's at least 3 versions of a i5-3470 (no suffix, S or T s
153.
by cnvogel 11y ago
... also their naming schemes are really annoying. There are almost identical chips sold as a "Pentium", "Celeron", "Xeon", "Core"... with random features turned on (or disabled). Now we get " At
154.
by cnvogel 11y ago
...so at one point, when it no longer is economically viable to produce two different housings, you'll paint over the carbon and glue in lead weights for the cheaper version...
155.
by cnvogel 11y ago
https://wiki.archlinux.org/index.php/cgroups This post has an example on how to limit a process (in this instance it's Matlab) regarding it's memory use an the CPUs it will allow to be scheduled. To limit the
156.
by cnvogel 11y ago
I think the EVO 850 are all SATA, not PCIe. But in general, yes, they should at least appear on the bus... Interestingly, when this happenned to me, with some "ADATA" SSDs they would still negotiate a link speed, so their PHYs did
157.
by cnvogel 11y ago
Yes, this experiment has been performed many times. It's called a “rave” and people will die from the exhaustion of dancing without eating or drinking anything for days...
158.
by cnvogel 11y ago
First, a 80MHz square wave does not have side bands that are significant below 80MHz, only above! And if it's configured for alternating 0/1 bits, a serial port at 80MBaud creates a square wave of exactly 40 MHz. Furthermore cnl
159.
by cnvogel 11y ago
Here's an example indicating how we can use overflow from INT_MAX to INT_MIN to terminate a loop... ...if signed overflow would be properly defined. /* Write \"hi\" n times, counter will wrap to negative * to
160.
by cnvogel 11y ago
What you say is correct, but I think people are not helping the discussion by adding correct but misleading statements such as "the compiler is allowed to print 'screw you'". To me it sounds as if the compiler would be t
161.
by cnvogel 11y ago
You could implement them as static/inline functions for compilers that lack the builtins (using a bunch of comparisons with SHORT_/INT_MAX, ...) , which would be slower but for things explicitly meant as security check, probably w
162.
by cnvogel 11y ago
You are right. Four LUTs/slice, with 6inputs/2outputs per LUT.
163.
by cnvogel 11y ago
One example that comes to mind is data analysis for radioastronomy. With arrays of radiotelescopes, as far as I understand it, you will downconvert an incoming frequency band spanning a few GHz, which gives you a few GByte/sec of data
164.
by cnvogel 11y ago
To put the mind-boggling amount of logic in a contemporary FPGA into perspective, the smallest device in the Kintex-7 family seems to be the XC7K70T... http://www.xilinx.com/products/silicon-devices/fpga/kinte
165.
by cnvogel 11y ago
This kind of security is used in SIM-cards, access-cards for pay-TV, TPMs. Kind of standard with various variations. Some criss/cross metal mesh as the topmost layer you would have to penetrate, or photodiodes that sense the light if y
166.
by cnvogel 11y ago
As far as I see the bug primarily lies within this function here... resolv/res_send.c https://github.com/bminor/glibc/blob/master/resolv/res_send.... Lines 952 ... 1389 [=~450 lines of code], w
167.
by cnvogel 11y ago
No. Power generally is proportional to the voltage squared (P∝U²). P=U²/R → U=√(PR) The numbers you quote (1W [not dBm!] is 7.1V) make me believe that you assume an impedance of 50Ω. In [1]: math.sqrt(1*50) # P[in W] * R[in O
168.
by cnvogel 11y ago
...and also the method to get laplink to the other PC was quite similar: http://imgur.com/J5lCnbz MODE COM1,2400,n,8,1,p -> configure serial port CTTY COM1 -> let the other computer control the
169.
by cnvogel 11y ago
> atomic clocks in general is that they have very good > short term stability, but not-so-great long-term > stability Well... The normal number to look at is the "Allan Variance". Over a timescale of day
170.
by cnvogel 11y ago
Specifically, one or few of the sattelites sent a wrong value "A0" in its "Page 18 of subframe 4" message. Page 37, §2.4.5.5 in http://www.gps.gov/technical/ps/1995-SPS-signal-specificatio...
171.
by cnvogel 11y ago
There is no audio card with 32bit ADCs available for a couple hundred $, and even if there would be such a thing, you would need a signal source with a low enough impedance to not completely drown in thermal noise. Any application requiring
172.
by cnvogel 11y ago
This has been discussed to death already 3 days ago, please have a look at this discussion thread: https://news.ycombinator.com/item?id=10999335
173.
by cnvogel 11y ago
Exactly what they should have done. Return an error in the driver framework's evtDeviceStart (or similar...), let DeviceManager show the "device could not start" icon and write a "You are using a non-genuine USB to UART
174.
by cnvogel 11y ago
People need a FTDI driver because the UARTs by FTDI aren't "class compliant". Just as most other interface chips aren't "class compliant". Here are all the drivers for "proprietary" USB UARTs that are
175.
by cnvogel 11y ago
Are you arguing about malicious attempts to mess up, or brick, your computer, facilitated by efivars presenting an interface accessible by simple shell scripts? Well... If there would be an api requiring, for example, a special syscall (or
176.
by cnvogel 11y ago
Then just require the efivars to have different semantics, just have a look like unbind works for drivers. If you really want to be super cautious, add a safeguard to enable this. echo 1 >/sys/...efi.../enable_
177.
by cnvogel 11y ago
...on the other hand, the cockpit voice recorders a) only record a loop of a few hours, so after an intercontinental flight they will have overwritten everything on the first half of the flight and b) there's a button to erase them. h
178.
by cnvogel 11y ago
The parameter in GSM is called "Timing Advance". [ http://www.qtc.jp/3GPP/Specs/GSM_GERAN/0510-8c0.pdf ] and it's the length of time by which the mobile advances its transmission to the base stat
179.
by cnvogel 11y ago
microUSB, so that he can use a standard OTG adapter for host mode... (which the SoC supports)
180.
by cnvogel 11y ago
How did you learn that 1/2" or 1/4" head phones would be wired "opposite ways"? I would doubt that this is the case.

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