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by brox
Fri Feb 07, 2014 3:57 pm
Forum: Java
Topic: Database selection
Replies: 13
Views: 15956

Re: Database selection

I read already different postings about using databases on the Pi. Mainly sqlite3 is advised in most situations. What I want to achieve is that different sensors send data (of course this can happen simultaneously) to the Pi. I suppose since sqlite3 is a single user db probably its not suited for t...
by brox
Tue Feb 04, 2014 2:03 pm
Forum: C/C++
Topic: random blocks of pixels on LCD
Replies: 2
Views: 697

Re: random blocks of pixels on LCD

Most likely your program just losing control - like stack overflow, buffer overflow, array index out of bounds etc
by brox
Tue Jan 28, 2014 10:46 am
Forum: C/C++
Topic: Raspicam C Code
Replies: 4
Views: 1781

Re: Raspicam C Code

Can you show the example of non-working loop code?
by brox
Fri Jan 17, 2014 4:09 pm
Forum: C/C++
Topic: is there a real advantage to use C++ over Python?
Replies: 42
Views: 12884

Re: is there a real advantage to use C++ over Python?

Very good Python or Java programmer can create code that will be both smaller and faster, than C++ code written by average C++ developer. Proven many times.
by brox
Tue Dec 31, 2013 12:35 pm
Forum: Bare metal, Assembly language
Topic: Simple assembler question
Replies: 13
Views: 4738

Re: Simple assembler question

Actually, assembler is one of the few languages that do not require any IDE to code effectively. And you can code, compile and run on the Pi itself.
Personally, I did assembly programming for 30+ years and never used any IDE.
So notepad or whatever you feel comfortable with - is your right choice.
by brox
Mon Oct 07, 2013 12:49 pm
Forum: C/C++
Topic: Playing a tone between 750 and 1000 Hz
Replies: 8
Views: 3164

Re: Playing a tone between 750 and 1000 Hz

Mentioning your target OS and frontend might help. Qt/SDL/Allegro/bare metal etc
by brox
Thu Aug 22, 2013 1:27 pm
Forum: C/C++
Topic: simplifiing program
Replies: 2
Views: 1004

Re: simplifiing program

Hi all, Is possible simplify this match? (nt.nti.nai.abtUid[0] == 0x0000000e && nt.nti.nai.abtUid[1] == 0x00000021 && nt.nti.nai.abtUid[2] == 0x000000d4 && nt.nti.nai.abtUid[3] == 0x000000c6) nt.nti.nai.abtUid have more than 4 numbers and I want simply comparator where another side of the equation ...
by brox
Mon Jul 29, 2013 11:24 am
Forum: Graphics programming
Topic: Fractals
Replies: 10
Views: 5583

Re: Fractals

Is there a way to do fractal graphics using the pi and some linux version? Depends on what do you mean by "fractal graphics". I generated seamless tiled fractal background for my apps really fast with plain J2ME on low end mobile phone. IFS fractals or simple ones like Mandelbrot/Julia can be calcu...
by brox
Tue Jul 16, 2013 2:22 pm
Forum: Java
Topic: Oracle JDK 7u40 EA hardfloat available
Replies: 3
Views: 6988

Re: Oracle JDK 7u40 EA hardfloat available

bullen wrote:So is this better in any way than the JDK8 release for serverside stuff, specifically http://rupy.googlecode.com?
swing vs FX, you decide
by brox
Tue Jun 25, 2013 2:49 pm
Forum: Java
Topic: JRE 8 Slow Java Drawing Functions
Replies: 6
Views: 3388

Re: JRE 8 Slow Java Drawing Functions

To draw fast you need to use the OpenGL ES , OpenVG or DispmanX 2D API to get the most performance out of the Raspberry Pi by taking advantage of its VideoCore IV GPU, rendering will then be fast using any JRE. These three API work without using X11. There exist many Java bindings and frameworks th...
by brox
Tue May 14, 2013 8:45 pm
Forum: Other projects
Topic: $61 HDMI LCD 800x480
Replies: 6
Views: 13678

$61 HDMI LCD 800x480

Hi, I've found following display solution for Pi: http://www.ebay.com/itm/180974436891 7 inch 800x480 LCD comes with driver board, which allows to directly connect to HDMI output of your Pi. No additional software drivers required. Just edit /boot/config.txt as mentioned here: http://www.raspberrypi...
by brox
Mon Apr 15, 2013 8:54 am
Forum: General programming discussion
Topic: Which Language to Learn?
Replies: 53
Views: 15412

Re: Which Language to Learn?

Don't listen to anyone. Start learning pure C (not C++). It will take about 4 hours to learn. All you need is in wikipedia. And next, you decide what to do with your future programming skills. If you want to be able to write 300K code per day and get a decent job with high salary - Java is for you. ...
by brox
Sat Apr 06, 2013 12:30 pm
Forum: Graphics programming
Topic: Cross compiling SDL (succesful)
Replies: 2
Views: 8381

Cross compiling SDL (succesful)

Here is short tutorial for someone inexperienced like me. I'm not sure whether it is optimal, but it worked. This tutorial is for Linux host PC. 1. Prepare your Linux host. I created directory raspidev in my HOME mkdir raspidev cd raspidev mkdir SDL_cross 2. Get official cross tools for Raspberry Pi...
by brox
Thu Apr 04, 2013 2:24 pm
Forum: Gaming
Topic: Another Elite thread
Replies: 36
Views: 9149

Re: Another Elite thread

I,m very surprised that no one has mentioned the X-Universe series of games. http://www.egosoft.com/games/x3/screenshots/x3_screen_227_th2.jpg http://www.egosoft.com/games/x3/screenshots/x3_screen_227_th1.jpg Texy X- series are all beautiful games (much, much better than original Elite and any orig...
by brox
Mon Apr 01, 2013 2:13 pm
Forum: Java
Topic: Educational Java Program
Replies: 10
Views: 3628

Re: Educational Java Program

Any console output?
by brox
Sat Mar 30, 2013 9:07 pm
Forum: Raspbian
Topic: Kernel sources avaliability
Replies: 25
Views: 12240

Re: Kernel sources avaliability

Now click on browse code and find the file extra/git_hash in this you will find a (complete) git commit ID for the raspberrypi/linux repository which you can use to check out the corresponding source code for your kernel from the raspberrypi/linux repository. I have no trouble with the steps previo...
by brox
Sat Mar 30, 2013 7:15 pm
Forum: Other projects
Topic: HDMI 7" LCD Display with touch for Raspberry Pi
Replies: 13
Views: 9557

Re: HDMI 7" LCD Display with touch for Raspberry Pi

I have designed a 7" HDMI LCD Display for the Raspberry Pi. After a lots of fixes I could make the display work for latest version of Raspbian and updated firmware ... more details of the display 7" 800 x 480 x3(RGB) TFT screen with TI's HDMI decoder and Microchip's USB Touch screen controller for ...
by brox
Sun Mar 24, 2013 11:00 pm
Forum: Java
Topic: Lightwight IDE
Replies: 10
Views: 6686

Re: Lightwight IDE

No lightweight java IDEs. Forget it. Raspberry Pi is beautiful platform to run java compiled classes, and believe me, performance is enough for very serious applications. But developing in java on Raspberry Pi is waste of time. No one does this. So get a PC with Windows/Mac/Linux, buy Intellij IDEA ...
by brox
Fri Mar 15, 2013 12:50 pm
Forum: General discussion
Topic: Lets port Elite to the Raspberry PI
Replies: 45
Views: 8522

Re: Lets port Elite to the Raspberry PI

Well, it is actually D. Braben who bans any elite sources (derived from original BBC sources) found on the net... Good thing he can't ban Ian Bell)))

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