Comments for electrons on radio http://www.electronsonradio.com a blog about math, science and engineering Sun, 01 Apr 2012 09:08:27 +0000 hourly 1 http://wordpress.org/?v=3.3.2 Comment on BeagleBoard character faults on serial after boot (UART wakeup issue) by Quick start to Angstrom on the BeagleBoard | electrons on radio http://www.electronsonradio.com/2011/06/beagleboard-character-faults-on-serial-after-boot-uart-wakeup-issue/#comment-249 Quick start to Angstrom on the BeagleBoard | electrons on radio Sun, 01 Apr 2012 09:08:27 +0000 http://www.electronsonradio.com/?p=64#comment-249 [...] If having problem with serial, check post on serial issues. [...] [...] If having problem with serial, check post on serial issues. [...]

]]> Comment on Building Ångström for the BeagleBoard using OpenEmbedded by Alex Bresee http://www.electronsonradio.com/2011/04/building-angstrom-for-the-beagleboard-using-openembedded/#comment-248 Alex Bresee Tue, 27 Mar 2012 15:50:35 +0000 http://www.electronsonradio.com/?p=43#comment-248 I'm trying to follow these instructions -- it looks like it works, but... where does it actually put the files it generates? I’m trying to follow these instructions — it looks like it works, but… where does it actually put the files it generates?

]]> Comment on Intro to basic cross-compiling for the BeagleBoard by Mayank Prabhakar http://www.electronsonradio.com/2011/04/intro-to-basic-cross-compiling-for-the-beagleboard/#comment-235 Mayank Prabhakar Tue, 20 Mar 2012 09:14:57 +0000 http://www.electronsonradio.com/?p=36#comment-235 Hi, I have compiled my application on Linux (Intel) machine using this command gcc –g myapp.c –O3 –o myapp mylib.a ‘pkg-config –cflags gtk+-2.0’ ‘pkg-config –libs gtk+-2.0 gthread-2.0’ myapp is running successfully on Linux machine. Now I want to compile myapp for Angstrom (A Linux version running on Beagleboard). So I am using angstrom-2011.03-i686-linux-armv7a-linux-gnueabi-toolchain (is a cross-compiler for angstrom) cross-compiler to compile myapp.I have set path successfully using this command ./usr/local/angstrom/arm/environment-setup And I have used this command to compile myapp.c for angstrom ----- [root@acmemsys internetTV_partialDecoding]# ./arm-angstrom-linux-gnueabi-gcc -g myapp.c -O3 -o myapp mylib.a 'pkg-config --cflags gtk+-2.0' 'pkg-config --libs gtk+-2.0 gthread-2.0' Errors: arm-angstrom-linux-gnueabi-gcc: mylib.a: No such file or directory arm-angstrom-linux-gnueabi-gcc: pkg-config --cflags gtk+-2.0: No such file or directory arm-angstrom-linux-gnueabi-gcc: pkg-config --libs gtk+-2.0 gthread-2.0: No such file or directory arm-angstrom-linux-gnueabi-gcc: error trying to exec 'cc1': execvp: No such file or directory So want to ask that: 1. How this error will be removed arm-angstrom-linux-gnueabi-gcc: mylib.a: No such file or directory Note:- mylib.a is a library used for myapp. 2. which packages or command will be used on the place of pkg-config --cflags gtk+-2.0 and pkg-config --libs gtk+-2.0 for angstrom. 3. And why this Error arm-angstrom-linux-gnueabi-gcc: error trying to exec 'cc1': execvp: No such file or directory is coming. Please help me to short out this problem. Thanks in advance Hi,
I have compiled my application on Linux (Intel) machine using this command
gcc –g myapp.c –O3 –o myapp mylib.a ‘pkg-config –cflags gtk+-2.0’ ‘pkg-config –libs gtk+-2.0 gthread-2.0’
myapp is running successfully on Linux machine.

Now I want to compile myapp for Angstrom (A Linux version running on Beagleboard).

So I am using angstrom-2011.03-i686-linux-armv7a-linux-gnueabi-toolchain (is a cross-compiler for angstrom) cross-compiler to compile myapp.I have set path successfully using this command
./usr/local/angstrom/arm/environment-setup

And I have used this command to compile myapp.c for angstrom
—–
[root@acmemsys internetTV_partialDecoding]# ./arm-angstrom-linux-gnueabi-gcc -g myapp.c -O3 -o myapp mylib.a ‘pkg-config –cflags gtk+-2.0′ ‘pkg-config –libs gtk+-2.0 gthread-2.0′
Errors:
arm-angstrom-linux-gnueabi-gcc: mylib.a: No such file or directory
arm-angstrom-linux-gnueabi-gcc: pkg-config –cflags gtk+-2.0: No such file or directory
arm-angstrom-linux-gnueabi-gcc: pkg-config –libs gtk+-2.0 gthread-2.0: No such file or directory
arm-angstrom-linux-gnueabi-gcc: error trying to exec ‘cc1′: execvp: No such file or directory

So want to ask that:
1. How this error will be removed
arm-angstrom-linux-gnueabi-gcc: mylib.a: No such file or directory
Note:- mylib.a is a library used for myapp.
2. which packages or command will be used on the place of pkg-config –cflags gtk+-2.0 and pkg-config –libs gtk+-2.0 for angstrom.
3. And why this Error
arm-angstrom-linux-gnueabi-gcc: error trying to exec ‘cc1′: execvp: No such file or directory
is coming.

Please help me to short out this problem.

Thanks in advance

]]> Comment on Intro to basic cross-compiling for the BeagleBoard by Ivan L http://www.electronsonradio.com/2011/04/intro-to-basic-cross-compiling-for-the-beagleboard/#comment-232 Ivan L Mon, 12 Mar 2012 11:30:25 +0000 http://www.electronsonradio.com/?p=36#comment-232 Hello Dave Thanks for an easy guide. Just want to say that modifying prefix to /home/whatever is bad practice use DESTDIR instead make DESTIDR=/home/user install Many programs rely on the prefix path to work properly, Best regards Ivan Hello Dave

Thanks for an easy guide.

Just want to say that modifying prefix to /home/whatever is bad practice

use DESTDIR instead

make DESTIDR=/home/user install

Many programs rely on the prefix path to work properly,

Best regards
Ivan

]]> Comment on RT2573 Wireless Dongle with the BeagleBoard by Jeremy http://www.electronsonradio.com/2011/03/rt2573-wireless-dongle-with-the-beagleboard/#comment-226 Jeremy Fri, 02 Mar 2012 16:20:00 +0000 http://www.electronsonradio.com/?p=32#comment-226 This worked for me. Thanks for posting! This worked for me. Thanks for posting!

]]> Comment on Building Ångström for the BeagleBoard using OpenEmbedded by Lab 2/7 | Autonomous Quadrocopter http://www.electronsonradio.com/2011/04/building-angstrom-for-the-beagleboard-using-openembedded/#comment-221 Lab 2/7 | Autonomous Quadrocopter Tue, 07 Feb 2012 22:12:05 +0000 http://www.electronsonradio.com/?p=43#comment-221 [...] a while I found a guide to using OpenEmbedded to install Angstrom on the BeagleBoard which had a lot of good information on it. I plan to utilize the information in this guide on [...] [...] a while I found a guide to using OpenEmbedded to install Angstrom on the BeagleBoard which had a lot of good information on it. I plan to utilize the information in this guide on [...]

]]> Comment on Intro to basic cross-compiling for the BeagleBoard by Dave http://www.electronsonradio.com/2011/04/intro-to-basic-cross-compiling-for-the-beagleboard/#comment-212 Dave Wed, 18 Jan 2012 06:08:13 +0000 http://www.electronsonradio.com/?p=36#comment-212 This question seems to be asked a lot, is this for a class? I personally haven't built opencv, but to build your own applications for the BeagleBoard you'll need a development environment like the Narciss SDK or OpenEmbedded which contains opencv libraries which you can link. I would search the Angstrom / BeagleBoard mailing lists as you'll find this is a very popular topic. This question seems to be asked a lot, is this for a class?
I personally haven’t built opencv, but to build your own applications for the BeagleBoard you’ll need a development environment like the Narciss SDK or OpenEmbedded which contains opencv libraries which you can link. I would search the Angstrom / BeagleBoard mailing lists as you’ll find this is a very popular topic.

]]> Comment on Intro to basic cross-compiling for the BeagleBoard by nikhila http://www.electronsonradio.com/2011/04/intro-to-basic-cross-compiling-for-the-beagleboard/#comment-211 nikhila Wed, 18 Jan 2012 05:52:55 +0000 http://www.electronsonradio.com/?p=36#comment-211 hi I'm a newbee on the beagleboard and the software toolchain flow. I need to port Angstrom/Ubuntu on the Beagle board and run opencv on it. Should I use the Narciss SDK or is there any alternative to it? I need step by step instructions on installing opencv. Till now, I've got angstrom running using a prebuilt image from the beagleboard website. I'm stuck. Can u please help me? hi

I’m a newbee on the beagleboard and the software toolchain flow. I need to port Angstrom/Ubuntu on the Beagle board and run opencv on it.

Should I use the Narciss SDK or is there any alternative to it? I need step by step instructions on installing opencv.

Till now, I’ve got angstrom running using a prebuilt image from the beagleboard website.

I’m stuck. Can u please help me?

]]> Comment on BeagleBoard: DVI Video modes by Josh Palmer http://www.electronsonradio.com/2011/02/beagleboard-dvi-video-modes/#comment-205 Josh Palmer Sun, 01 Jan 2012 23:09:18 +0000 http://www.electronsonradio.com/?p=16#comment-205 Words cannot describe how excellent this post it. Thank you sir. Words cannot describe how excellent this post it. Thank you sir.

]]> Comment on Intro to basic cross-compiling for the BeagleBoard by Dave http://www.electronsonradio.com/2011/04/intro-to-basic-cross-compiling-for-the-beagleboard/#comment-204 Dave Wed, 28 Dec 2011 12:02:10 +0000 http://www.electronsonradio.com/?p=36#comment-204 I've never tried to compile anything <strong>on</strong> the BeagleBoard before. I know this doesn't answer your question, but if you want to make changes on the fly maybe a scripting language for your programs would be more appropriate- maybe even python? You could try to cross-compile GCC (ie using your desktop to compile to the ARM tagket), which is how the binaries in the OPKG repo would have been built. Openembedded has the package in its repo which would be easy to build. See <a href="http://www.angstrom-distribution.org/repo/?pkgname=gcc" rel="nofollow">here</a>. I’ve never tried to compile anything on the BeagleBoard before. I know this doesn’t answer your question, but if you want to make changes on the fly maybe a scripting language for your programs would be more appropriate- maybe even python? You could try to cross-compile GCC (ie using your desktop to compile to the ARM tagket), which is how the binaries in the OPKG repo would have been built. Openembedded has the package in its repo which would be easy to build. See here.

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