Go to advanced search

by higwoth1
Mon Jul 30, 2012 4:28 pm
Forum: Advanced users
Topic: GL over X
Replies: 3
Views: 1755

Re: GL over X

I'm afraid I'm going to be a bt vague here, but GL over X seemed to be working on the original raspbian pisces_r3 image (the one before the official release). At least I was able to run 'critterdings' on the pi, with the ouput on my mac at 24-30fps (2fps when running only on pi). Is that what you we...
by higwoth1
Mon Jul 09, 2012 2:37 pm
Forum: Automation, sensing and robotics
Topic: how to turning back on after recharge
Replies: 9
Views: 3486

Re: how to turning back on after recharge

Thanks.

Just to confirm, having found R15/D15 on the schematics, do you mean pin 1 on the GPIO port?
by higwoth1
Sat Jul 07, 2012 3:11 pm
Forum: Automation, sensing and robotics
Topic: how to turning back on after recharge
Replies: 9
Views: 3486

Re: how to turning back on after recharge

Yeah, I noticed that yesterday. The chips go cold on shutdown, so must be in sleep state, maybe deep sleep?

I wonder if the Pi can be woken up with a GPIO interrupt?
by higwoth1
Fri Jul 06, 2012 8:34 pm
Forum: Graphics, sound and multimedia
Topic: Simultaneous audio output on single twisted pair, Possible?
Replies: 22
Views: 5349

Re: Simultaneous audio output on single twisted pair, Possib

Yeah, that's what I meant by using the Olimexino with it's built in sd card, one per seat, using a 2 wire interface to sync. Ooops, didn't make that clear. A Pi would be easier still, if you could find 24. Isn't it still one per customer? Also what's the licence on these Pies - for non-commercial us...
by higwoth1
Fri Jul 06, 2012 7:05 pm
Forum: Graphics, sound and multimedia
Topic: Simultaneous audio output on single twisted pair, Possible?
Replies: 22
Views: 5349

Re: Simultaneous audio output on single twisted pair, Possib

I see, I forgot about languages. So the LED is used to communicate the language selected. A Pi or something similar seems like the option to use in that case. I think a hardware solution that uses various ICs to control network/audio would end up being expensive by the time you factor in the PCB cos...
by higwoth1
Fri Jul 06, 2012 4:31 pm
Forum: Graphics, sound and multimedia
Topic: Simultaneous audio output on single twisted pair, Possible?
Replies: 22
Views: 5349

Re: Simultaneous audio output on single twisted pair, Possib

Hmmm, it's not clear what you want to do. Is it just a single audio commentary that everyone hears at the same time? Then why not 24 headphone sockets connected to one amp via an mp3 player? Split it into 2 x 12 (left and right seats) and use 2 x 12 core wire, 1 wire (plus gnd) splitting off at each...
by higwoth1
Wed Jul 04, 2012 11:35 am
Forum: General discussion
Topic: Forum Timeout
Replies: 1
Views: 545

Forum Timeout

Why is the timeout so small? 3 mins? By the time I've written a post (which normally involves cross referencing my notes, starting up my pi etc) and check it for accuracy and then preview I get logged out. Logging back in just takes me to a blank 'new topic' page. I don't want to have write every po...
by higwoth1
Wed Jul 04, 2012 11:27 am
Forum: C/C++
Topic: How to add a graphical interface to C program
Replies: 5
Views: 3635

Re: How to add a graphical interface to C program

The squeeze distribution had wxGlade installed and I managed to get a window popping up with a button to do something reasonably easily in C. You just create a new application then add a frame and then buttons and press 'generate code'. Some quick pointers (just notes I've made myself):- Your build ...
by higwoth1
Tue Jun 26, 2012 10:15 am
Forum: Advanced users
Topic: GPU X windows
Replies: 2
Views: 2077

GPU X windows

So... is anyone working on an accelerated version of X? A mesa type driver for 3d to use the GPU? An accelerated version of SDL (is that possible?)
by higwoth1
Tue Jun 19, 2012 5:26 pm
Forum: RISCOS
Topic: RISC OS on Raspberry Pi
Replies: 356
Views: 125785

Re: RISC OS on Raspberry Pi

re : keyboard error hang.

I also get this appearing a few times. Just power off, wait a little while, then reapply power. If at first you don't succeed...

Also I'm using a 2gb card with no problems, no errors in writing, so it does fit. I use the 'dd' command from a Mac.
by higwoth1
Mon Jun 18, 2012 8:24 pm
Forum: Automation, sensing and robotics
Topic: Panalyzer - a RaspberryPi based Logic Analyzer
Replies: 69
Views: 63321

Re: Panalyzer - a RaspberryPi based Logic Analyzer

Compile kernel. Ah, in that case I might wait for the binary release. ;)
by higwoth1
Mon Jun 18, 2012 3:44 pm
Forum: Automation, sensing and robotics
Topic: Panalyzer - a RaspberryPi based Logic Analyzer
Replies: 69
Views: 63321

Re: Panalyzer - a RaspberryPi based Logic Analyzer

Looks very good, would be nice if it had some docs on compiling it, so I could try it out.
by higwoth1
Sat Jun 16, 2012 4:11 pm
Forum: Troubleshooting
Topic: rpi-update now causes sys-req problems
Replies: 3
Views: 916

Re: rpi-update now causes sys-req problems

I did think it might be a keyboard problem, though I'm using a wireless keyboard/mouse (sys-req is a keyboard command isn't it?) I have nothing but an old IDE cable connected to the GPIO port to allow me to use it Arduino style, and to protect the pins. Well, it seems that that is it! I guess it's p...
by higwoth1
Sat Jun 16, 2012 3:49 pm
Forum: Troubleshooting
Topic: rpi-update now causes sys-req problems
Replies: 3
Views: 916

rpi-update now causes sys-req problems

Hi, Since doing an rpi-update I am getting a huge number of 'sysreq : HELP' messages appearing in console and being logged out. Luckily I have a backup so I can go back to the previous version, but it's been like this for a week now. It updates 725 new files. What is the difference between this new ...
by higwoth1
Fri Jun 15, 2012 10:31 am
Forum: C/C++
Topic: An OpenGL Graphics Library for pi
Replies: 4
Views: 2123

Re: An OpenGL Graphics Library for pi

Ah, thanks. I have somewhere to start from now. I'll have a play around and see what happens.
by higwoth1
Fri Jun 15, 2012 12:47 am
Forum: C/C++
Topic: An OpenGL Graphics Library for pi
Replies: 4
Views: 2123

Re: An OpenGL Graphics Library for pi

Hi, Download, compiled etc this library. Ok working. Playing around with the ObjDemo I'm not getting very far. I've got as far as loading two meshes (obj) and rendering them, but that's it. How do I rotate each mesh separately? m_mesh2->scale() doesn't appear to do anything, or if it does it never g...
by higwoth1
Wed Jun 06, 2012 4:44 pm
Forum: OpenGLES
Topic: Getting Started with EGL / OpenGL ES
Replies: 13
Views: 17133

Re: Getting Started with EGL / OpenGL ES

This is good, cannot wait until you post some examples of moving textures around (I'd be happy with 2d at the moment).

Does EGL support 2d? Or is that VG? It's all very confusing.

Or does EGL just open up a 'display' (GLES or VG) and then GLES or VG code is used to do stuff?
by higwoth1
Wed Jun 06, 2012 10:15 am
Forum: C/C++
Topic: wiringPi undefined Reference
Replies: 29
Views: 45508

Re: wiringPi undefined Reference

If you use gcc instead of g++ it will compile, yes?

I know that doesn't fix your problem as you want to use c++, but it might be a clue as to what is going wrong, for you or somebody else to figure out.
by higwoth1
Sun Jun 03, 2012 12:26 am
Forum: C/C++
Topic: SFML ?
Replies: 7
Views: 8124

Re: SFML ?

Hi Andy, Thanks for your help... it still didn't compile but it pointed me in the right direction to start from. I simplified the initial example so it just tried to open a window and that did compile without errors (well one, but I'll ignore that for now). It didn't create a window though, complain...
by higwoth1
Sat Jun 02, 2012 12:28 am
Forum: C/C++
Topic: C library for GPIO
Replies: 10
Views: 10474

Re: C library for GPIO

I'm with you there on the pin numbering, what's easier to update, a thousand programs or one library. Keep it simple. Personally, I liked the Python library way of using pin1 as pin1, pin2 as pin2. They can change the hardware all they want, but pin1 will always be pin1, just like the Arduino/Maple....
by higwoth1
Fri Jun 01, 2012 2:56 pm
Forum: C/C++
Topic: SFML ?
Replies: 7
Views: 8124

Re: SFML ?

Hi Andy, Thanks for the reply, the 'THISDOESNOTWORK' bit was just to test if the linker was linking with the sfml libraries that I was telling it to. Eliminating possibilities. I thought maybe 'ld' couldn't find the libraries which was causing the unreferenced errors - by adding a false library it p...
by higwoth1
Fri Jun 01, 2012 12:10 am
Forum: C/C++
Topic: C library for GPIO
Replies: 10
Views: 10474

Re: C library for GPIO

Hi, There is quite a nice one, if you've used Arduino syntax before, at https://projects.drogon.net/raspberry-pi/wiringpi/ Haven't tried it yet (too busy), but checking the code over it looks good. I don't think it's safe, yet, to use in a multi-tasking environment, by which I mean if you have two p...
by higwoth1
Thu May 31, 2012 10:32 pm
Forum: C/C++
Topic: SFML ?
Replies: 7
Views: 8124

SFML ?

Hi, Having (probably very basic) problems getting SFML code to compile. I've installed the packages libsfml-dev* using the synaptics installer (or aptitude). Libraries are put into /usr/lib/libsfml*.so and the include files are installed in /usr/include/SFML/*, as they should be. If I link with "-ls...
by higwoth1
Mon May 28, 2012 1:05 pm
Forum: Advanced users
Topic: X windows session over ssh on Mac/Linux
Replies: 29
Views: 99262

Re: X windows session over ssh on Mac/Linux

Ok, that's good. I wish I could edit that post because I made an error which limits a few things, such as remembering settings and the 'Other' menu. Instead of lxsession Type /etc/X11/Xsession Probably not the ideal way of doing this, hopefully someone with more knowledge of X will be along shortly.
by higwoth1
Mon May 28, 2012 3:47 am
Forum: Advanced users
Topic: X windows session over ssh on Mac/Linux
Replies: 29
Views: 99262

X windows session over ssh on Mac/Linux

Hi, I'm sure everyone knows how to do this, but I see a lot of people running tightvncserver to run an X session remotely whereas running X over ssh is much more efficient as the poor old Pi doesn't have to do as much compression and/or drawing the screen. On a mac (and linux) it's just a matter of ...

Go to advanced search