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by dextrus
Thu Jan 31, 2013 12:30 am
Forum: Bare metal, Assembly language
Topic: Learning ARM assembly
Replies: 16
Views: 6591

Re: Learning ARM assembly

That's a really good source! It's very approachable and well written for the newcomer. I might nick this for teaching duties! /Dextrus What Dextrus mentioned: I used a GBA tutorial to learn arm assembly...although I can't seem to find which one anymore in particular. Edit: just found the tutorial ba...
by dextrus
Wed Jan 30, 2013 11:59 pm
Forum: Beginners
Topic: Nice media centre
Replies: 5
Views: 1416

Re: Nice media centre

Don't forget a lot of the on-demand plug-ins are country specific, remote control operation is limited to TV's that support it (not that many) and guaranteeing that sound works "out of the box" would be nigh-on impossible. I sell pre-configured OpenELEC cards, but I do it for newbies and schools. It...
by dextrus
Wed Jan 30, 2013 10:33 pm
Forum: Graphics, sound and multimedia
Topic: JACK unable to connect to server
Replies: 5
Views: 5331

Re: JACK unable to connect to server

Assuming Raspbian: There are ways to avoid the memory fault (reduce the number of periods to 512 is one, i.e. -p 512), but I've yet to encounter a solution to running Jackd 2.0 successfully for general use as it requires the alsa driver to have memory mapping support, which it doesn't seem to have. ...
by dextrus
Wed Jan 30, 2013 10:18 pm
Forum: General discussion
Topic: Request for better sound card support
Replies: 32
Views: 8726

Re: Request for better sound card support

I think we just need to be patient, and help where we can. The sound issue is a very complex one and the negativity isn't going to help the engineers or volunteers fix the problem. I'm sure it will be fixed, but obviously for some of the posters, you can't increase the quality of the original hardwa...
by dextrus
Wed Jan 30, 2013 4:09 pm
Forum: Beginners
Topic: Definitive answer to Remote Control Please?
Replies: 6
Views: 1365

Re: Definitive answer to Remote Control Please?

Yes there is I believe. You can use a CEC adaptor.

Here's a nice concise page that helps and provides a link to said adaptor. Unfortunately the adaptor is about as much as a Pi, but I do plan to get one soon and test it. My 9 year-old daughter needs her remote functionality!

/Dextrus
by dextrus
Wed Jan 30, 2013 3:15 pm
Forum: Beginners
Topic: Definitive answer to Remote Control Please?
Replies: 6
Views: 1365

Re: Definitive answer to Remote Control Please?

Isn't it likely that your TV doesn't support CEC after all that testing?

/Dextrus
by dextrus
Wed Jan 30, 2013 2:24 pm
Forum: Graphics, sound and multimedia
Topic: sonic-visualiser working
Replies: 1
Views: 700

sonic-visualiser working

I know it's niche, but I managed to get sonic-visualiser working on the Pi. This surprised me a lot as this is one complex package! http://www.sonicvisualiser.org/ Obviously with no working Jackd support you can't playback or record yet, but you can analyse the heck out of your audio files! Not a tr...
by dextrus
Tue Jan 29, 2013 10:19 pm
Forum: General discussion
Topic: can videos be played from a usb stick?
Replies: 6
Views: 14633

Re: can videos be played from a usb stick?

Yes you can.

What OS are you using? Is it Raspbian? You might want to consider trying XBMC on the PI which is designed to playback audio and video files and is really easy to use.

There are three variants that I know of: Raspbmc, Xbian and OpenELEC.
by dextrus
Tue Jan 29, 2013 12:07 am
Forum: Troubleshooting
Topic: Rpi crashes after 5-10 mins
Replies: 17
Views: 2034

Re: Rpi crashes after 5-10 mins

Powering by USB seems to be a poor option, and your other option is rated at the minimum required I believe. It also matters what you are running at the time, and OpenELEC (a bit like Quake 3) does tend to highlight power deficiencies (in other words it draws more power because it makes your Pi do m...
by dextrus
Mon Jan 28, 2013 9:13 pm
Forum: General discussion
Topic: Help with getting started
Replies: 4
Views: 671

Re: Help with getting started

BugBytes wrote:I need to reimage, because my Mac will not read the SD card ("The disk you inserted is not readable by this computer."). I'll reimage with dd and try again. Does the Pi need Ethernet to be connected to boot?
No, it doesn't, at least with any of the Operating System's I have tried.

/Dextrus
by dextrus
Sun Jan 27, 2013 10:36 pm
Forum: Beginners
Topic: Fastest, "best" SD card for Raspian Wheezy?
Replies: 10
Views: 9992

Re: Fastest, "best" SD card for Raspian Wheezy?

I'm afraid there is no "right" answer. It depends on what you want to use it for. The one thing I have seen, after testing over a dozen cards now, is the difference in random Write speed. Most cards are slow at this, but some (an example being a Sandisk Ultra class 10) is 3,000 times faster than mos...
by dextrus
Sun Jan 27, 2013 10:22 pm
Forum: Media centres
Topic: OpenElec XBMC Wifi Help
Replies: 4
Views: 2076

Re: OpenElec XBMC Wifi Help

What version of OpenELEC are you running? The latest version has easy configuration of Wifi from the "Programs" tab. You don't even need a keyboard (handy if you don't have a hub). It is mentioned that you can perhaps ssh in and change things. With openELEC that's less likely because it really is a ...
by dextrus
Sun Jan 27, 2013 10:16 pm
Forum: Staffroom, classroom and projects
Topic: Outline for Teaching Programming to kids
Replies: 10
Views: 3491

Re: Outline for Teaching Programming to kids

I've tried all this, and it doesn't work unless the student (or kid) is already inclined, IMHO. It's a very, very complex subject, but in a nutshell my approach is: make your students design and build a game they want to make. Twice. They will almost certainly fail in both cases, but will then have ...
by dextrus
Sun Jan 27, 2013 7:01 pm
Forum: Gaming
Topic: Gameboy Emulators Question
Replies: 20
Views: 6214

Re: Gameboy Emulators Question

Bramude I think in newer versions of Raspbian Open GL graphics drivers cause this problem. In the Hidden Folder, .mednafen, mednafen.cfg (Configuration File) change - video.driver opengl (This is the Default Setting) to video.driver sdl Just a minor correction, it's not newer versions of Raspbian c...
by dextrus
Sun Jan 27, 2013 6:48 pm
Forum: General discussion
Topic: Install Failed? (Open Arena)
Replies: 27
Views: 12368

Re: Install Failed? (Open Arena)

Which is odd, as Quake III arena on the Pi can play with the "big-boys" on the internet just fine. Admittedly, I get totally powned.

/Dextrus
by dextrus
Sun Jan 27, 2013 6:44 pm
Forum: Troubleshooting
Topic: Quake 3 Compiling
Replies: 3
Views: 1026

Re: Quake 3 Compiling

Quite detailed instructions here (I don't think I could make them any more detailed?!):

http://www.pi-fun.com/index.php/projects/quake3-3dtv/

Assumption is of course, that you are using Raspbian. Later in this project we'll be exploring the code (when I get time).

/Dextrus
by dextrus
Sun Jan 27, 2013 6:38 pm
Forum: Gaming
Topic: Good Games to download to pi?
Replies: 5
Views: 3070

Re: Good Games to download to pi?

There are around 1,000 games available, free of charge in the Debian games collection ( http://packages.debian.org/stable/games/ ) if you are running Raspbian. I have a page where we a painstakingly going through every one to see if they work on the Pi and if they are any good with a dedicated page ...
by dextrus
Sat Jan 26, 2013 6:30 pm
Forum: Raspbian
Topic: ALSA on Raspbian
Replies: 167
Views: 173875

Re: ALSA on Raspbian

I can record and playback using python or C++ just fine with the latest Raspbian. Ask if you want code. However, I do want to playback multiple sounds. I noticed that Raspbian creates 8 ALSA playback subdevices on boot, yet I am unable to access these (presumably I access these with hw:0,x where x i...
by dextrus
Fri Jan 25, 2013 1:38 am
Forum: Other projects
Topic: Portable karaoke machine
Replies: 15
Views: 16476

Re: Portable karaoke machine

XBMC says it "could" support pass-through audio input, but I can't see anything anywhere. The subject seems to be being actively avoided. Still, if we can get the above working without crashing, job's almost done (pass-through audio running as a daemon), especially with the plug-in I mentioned, Mike...
by dextrus
Thu Jan 24, 2013 9:06 pm
Forum: Other projects
Topic: Portable karaoke machine
Replies: 15
Views: 16476

Re: Portable karaoke machine

I have got a bit further with the microphone pass-through. Firstly I tried writing a program using python and pyaudio. While I can record and play back sound simultaneously, the playback of the recorded sound is very choppy (there is minimal lag however!). This isn't really surprising as all the pro...
by dextrus
Tue Jan 22, 2013 12:04 am
Forum: Raspbian
Topic: Updated version of pyheighborhood
Replies: 2
Views: 936

Re: Updated version of pyheighborhood

Well done! You are now officially a linux-er. Raspianer? Raspberry? Get used to it, because this doesn't go away, but the feeling of accomplishment says the same. 8-)
by dextrus
Mon Jan 21, 2013 11:55 pm
Forum: Gaming
Topic: New version of ioquake3.
Replies: 1
Views: 776

Re: New version of ioquake3.

The error you give tells you what the problem is. The library is looking for a function called "Hunk_FreeTempMemory" and you have removed it somehow. What's happening to you is a typical porting/build process. You don't know the full ins and outs of the code, and are cutting away parts (and maybe ad...
by dextrus
Mon Jan 21, 2013 6:33 pm
Forum: General discussion
Topic: is the Raspberry Pi a waste of time?
Replies: 14
Views: 3610

Re: is the Raspberry Pi a waste of time?

While I agree with the response above, it's a bit rich to open the thread for this. Moderators: Please live with a modicum of dissent and stop being so grumpy. The OP had a point, from his point-of-view, and you ended the discussion with a good post that was entirely one-sided.

/Dextrus
by dextrus
Sun Jan 20, 2013 12:25 am
Forum: Gaming
Topic: How to install/ build/ play Quake 3....
Replies: 201
Views: 196417

Re: How to install/ build/ play Quake 3....

It's good that you worry about this. I did at first. But then the original file was from 1999 the engine we're reading it from is much later that... Maybe the IoQuake version just defaults to "false"? I haven't checked. As long as it works and we have legitimate data, be happy. Are there any Pi only...
by dextrus
Sun Jan 20, 2013 12:17 am
Forum: General discussion
Topic: Your favorite console based applications...
Replies: 25
Views: 11256

Re: Your favorite console based applications...

Any of the nethack/rogue games. Hours if not days lost on those. aajm (that's the Debian package name). It's a juggling simulator. I can't stop using it and I've learned all about juggling patterns. So the author has won. I've been assimilated. Warning, you will need to think and research to use thi...

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