2007-09-26 Fiske steps testing
We did some testing of the new Fiske step software yesterday. To see how the device (the SIR chip) behaves, . . . on the FFO control line (FFO CL). (For an explanation of the SIR including FFO control line, . . .
5K - last updated 2007-09-26 14:16 UTC by 6530
2007-11-19 Finding an optimum
As mentioned [[2007-09-26_Fiske_steps_testing|before]], we need an algorithm to find the correct setting . . . in a cloud of points. I've gotten an explanation on how Andrey (the software developer of . . .
5K - last updated 2007-11-22 17:00 UTC by 6530
2008-06-23 Shamroc DAC board
The [http://en.wikipedia.org/wiki/Digital-to-analog_converter DAC] testboard for the Shamroc (part of . . . should the performance requirements be read? * Explanation of the subsystems in the ASIC * Why are . . .
2K - last updated 2008-06-24 09:11 UTC by 6530
2010-07-20 Coverity demo
We got a demo from the [http://www.coverity.com/ Coverity] people. We ran their tool on our code base . . . in advance. Via a WebEx session we got an explanation of the results, but first we got an overview . . . Along with the classification, there is a short explanation of this type of issue. Clicking further . . .
3K - last updated 2010-07-20 09:40 UTC by 6530
2010-10-05 Ubuntu on an old machine
If you want to use Ubuntu on an older PC, then memory might be tight. I recently got a HP/Compaq 7100dc . . . cups system-config-printer-gnome evolution Explanation: this removes support for braille input . . . Effects and select None, then click Close. Explanation: this switches your window manager from . . .
2K - last updated 2010-10-05 08:23 UTC by 6530
2011-04-20 Telfort ADSL and VoIP Planet
(English readers: this is an explanation on how to configure the modem of a Dutch ISP for VOIP usage). . . .
2K - last updated 2011-04-21 14:23 UTC by 6530
2011-12-12 Protocol stuff
We have an interesting situation here at work, concerning our internally developed binary protocol. There . . . much explained now, except that the data_bits explanation is rather terse. The thing is, we software . . .
5K - last updated 2011-12-15 15:40 UTC by 6530
2012-05-19 Telfort ADSL modem Zyxel P-2812HNU-F1 and VoIP Planet
(English readers: this is an explanation on how to configure the modem of a Dutch ISP for VOIP usage). . . .
2K - last updated 2012-05-19 09:50 UTC by 6530
2015-05-09 discovering bitrot with MD5
Except for modern filesystems such as ZFS and btrfs, your files aren't protected against so-called "bitrot". . . . -r -l testdirectory > testdirectory.md5deep Explanation: -r means recursive, -l will use relative . . .
3K - last updated 2016-09-11 10:13 UTC by 6530
2023-12-01 Unable to use public key authentication for ssh login on Raspberry Pi
TL;DR: Raspberry Pi OS will reject rsa keys, use another type of key, and copy it to the Pi: % ssh-keygen . . . % ssh-copy-id .ssh/id_ecdsa.pub <pi-hostname> Explanation is as follows. Recently I installed a Raspberry . . .
2K - last updated 2023-12-01 08:55 UTC by bartvk
A Small Oracle 9i
== HOWTO: A Small 9i Database == This thing is HUUUUUGE... Yeah, it's a big beast. But if you need an . . . shows the values I used and also shows a short explanation. ||Shared Pool||12 Mb||SQl and PL/SQL needs . . . level. Before we continue, I'll give a short explanation of each: ; Controlfiles: The database needs . . .
13K - last updated 2005-03-18 22:41 UTC by 6530
Debian guest on CentOS host
The explanation below details the installation of a Debian guest on a Xen host running the CentOS/Red . . .
4K - last updated 2007-09-21 07:29 UTC by 6530
Explanation
I'm glad you enjoy the picture. 1. The woman is my friend and coworker, India Branker. See attached for . . .
1K - last updated 2006-09-14 09:36 UTC by 6530
File Area
[[temp.jpg]] [[digitale_transmissietechniek.doc.zip]] [[boarding.pdf.enc]] [[6x8-IMG_3436c1.jpg]] [[Explanation]] . . .
1K - last updated 2008-06-23 20:45 UTC by 6530
Multithreaded programming
= What is a thread? = A process in Unix is actually a running program with an address space. This space . . . in the following example. For the theoretical explanation, see [http://en.wikipedia.org/wiki/Producers-consumers_problem#Using_semaphores . . . On the subject of joinable/detached, see the explanation of pthread_join(). If scheduling is important . . .
9K - last updated 2007-07-11 12:20 UTC by bvankuik
Parsing and transforming RDF files in PLSQL
When you say 'XML', you'd probably also say 'Java' -- until now, because a stock Oracle database installation . . . 'XML evangelist'. And of course, a bare bones explanation can be found on http://otn.oracle.com . . .
15K - last updated 2005-03-19 06:57 UTC by 6530
Signals
= What good is it using signals? = With signals we mean the "software interrupts" that you also send . . . sigaction *act, struct sigaction *oldact); Explanation of the parameters: int signum Of course . . .
7K - last updated 2007-04-02 12:46 UTC by 6530
Sockets
= Introduction in sockets = For communication over a network, almost every OS provides an API called . . . which is very famous for its clear and precise explanation. . . .
11K - last updated 2007-08-13 14:58 UTC by bvankuik
System V Semaphores
= Controlling resources with semaphores = == Problem: how can I control access to resources? == Imagine . . . semget ( key_t key, int nsems, int semflg ); An explanation of the parameters: key_t key The key, a . . . semid, struct sembuf *sops, unsigned nsops ); An explanation of the parameters: int semid The unique . . . short integer sem_op; short integer sem_flg; } Explanation of the parameters: unsighed short integer . . .
18K - last updated 2007-08-07 09:20 UTC by bvankuik
Tracking Issues
Have you ever logged a bug against an (open source) piece of software? Were you happy with the results? . . . a bug, log it in the wrong way. No examples, no explanation, just a basic "it doesn't work". Others . . .
5K - last updated 2005-10-11 10:18 UTC by 6530
UMTS links
* [http://slashdot.org/comments.pl?sid=50773&cid=5086905 Slashdot Insightful comment about WiFi not squashing . . . Slashdot Layman's explanation of TDM, FDM and CDMA] * [http://denbeste.nu/cdmafaq/index.shtml . . . a Qualcomm engineer with lots of FAQs and longer explanations] * [http://www.radio-electronics.com/info/cellulartelecomms/umts/umts_wcdma_tutorial.php . . .
1K - last updated 2005-10-16 16:13 UTC by 6530
UNIX Toolkit
What follows is an explanation of several operating system mechanisms for programmers in the UNIX environment. . . .
1K - last updated 2007-10-11 13:21 UTC by 6530
vankuik.nl
= Latest weblog entries = <journal 5> = Weblog Archive = [[Weblog_entries_2024]] [[Weblog_entries_2023]] . . . (HTML)] * [[UNIX_Toolkit]] -- an explanation of several operating system mechanisms . . . tricks * [[git]] * [[Bash]] * [[UNIX_Toolkit]] Explanation of several operating system mechanisms . . .
4K - last updated 2024-04-16 10:29 UTC by bartvk
23 pages found.