Comments for electrons on radio http://www.electronsonradio.com a blog about math, science and engineering Tue, 07 Feb 2012 22:12:05 +0000 hourly 1 http://wordpress.org/?v=3.3.1 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.

]]> Comment on cp210x usb to serial converter linux driver by Dave http://www.electronsonradio.com/2011/07/cp210x-usb-to-serial-converter-linux-driver/#comment-203 Dave Wed, 28 Dec 2011 11:47:28 +0000 http://www.electronsonradio.com/?p=90#comment-203 I'm afraid I haven't experienced this problem before. Have you tried updating the drivers in the kernel? I’m afraid I haven’t experienced this problem before. Have you tried updating the drivers in the kernel?

]]> Comment on cp210x usb to serial converter linux driver by Mike http://www.electronsonradio.com/2011/07/cp210x-usb-to-serial-converter-linux-driver/#comment-200 Mike Wed, 07 Dec 2011 04:18:48 +0000 http://www.electronsonradio.com/?p=90#comment-200 Have used these driver with a Device ID 10c4:ea70, it can connect initially, but when we disconnect and reconect again, it can not connect anymore. Do you encounter these problem before? Please advise. Have used these driver with a Device ID 10c4:ea70, it can connect initially, but when we disconnect and reconect again, it can not connect anymore. Do you encounter these problem before?
Please advise.

]]> Comment on Intro to basic cross-compiling for the BeagleBoard by Victor Aldecôa http://www.electronsonradio.com/2011/04/intro-to-basic-cross-compiling-for-the-beagleboard/#comment-199 Victor Aldecôa Tue, 06 Dec 2011 20:07:33 +0000 http://www.electronsonradio.com/?p=36#comment-199 Hi, thank you very much for this post. It was very helpful. I have a question... my BeagleBoard has no internet access, and I want to install gcc on it (not for full development, but in case I want to do little modifications on the code using vi). How do I do that? For example, I needed to install lrzsz to easily transfer files to it, and what I did was install with opkg-target and copy the installed binaries from my PC to BeagleBoard's /usr/bin. But "opkg-target install gcc" downloaded a bunch of files and no binary. Should I copy the whole ".../arm/arm-angstrom-linux-gnueabi" folder? The strange thing is that arm-angstrom-linux-gnueabi/bin/gcc is just a link to ../../bin/arm-angstrom-linux-gnueabi-gcc, which was compiled for AMD64, not for ARM. Thank you in advance. Sorry for the long question, and I hope it isn't too much confusing. Hi,
thank you very much for this post. It was very helpful.
I have a question… my BeagleBoard has no internet access, and I want to install gcc on it (not for full development, but in case I want to do little modifications on the code using vi). How do I do that?
For example, I needed to install lrzsz to easily transfer files to it, and what I did was install with opkg-target and copy the installed binaries from my PC to BeagleBoard’s /usr/bin. But “opkg-target install gcc” downloaded a bunch of files and no binary. Should I copy the whole “…/arm/arm-angstrom-linux-gnueabi” folder?
The strange thing is that arm-angstrom-linux-gnueabi/bin/gcc is just a link to ../../bin/arm-angstrom-linux-gnueabi-gcc, which was compiled for AMD64, not for ARM.

Thank you in advance. Sorry for the long question, and I hope it isn’t too much confusing.

]]> 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-166 Dave Sat, 05 Nov 2011 02:41:20 +0000 http://www.electronsonradio.com/?p=36#comment-166 Hi Gabrijel, You can do it with the toolchain, but I haven't actually done that myself. I assume you also need to link the kernel headers. If you do end up getting it to work this way, I'd be interested to know how you did it. I have updated drivers in OpenEmbedded before, what you need to do is create a kernel patch to update the driver to the latest version. I have briefly gone through the process here: http://www.electronsonradio.com/2011/05/openembbeded-linux-kernel-adding-pseye-patched-modules/ Basically what you need to do is get the source for the latest driver (the link you provided) and the source for the kernel (you'll find this in your OE temp directory) then do a diff to create a patch file (similar to what I've done here: http://www.electronsonradio.com/2011/06/building-the-bleeding-edge-pseye-driver-for-your-specific-kernel-version/ (although this is more complicated than your case)) Then you add the patch to your OE kernel build and can recompile the kernel with the new driver. Dave Hi Gabrijel,
You can do it with the toolchain, but I haven’t actually done that myself. I assume you also need to link the kernel headers. If you do end up getting it to work this way, I’d be interested to know how you did it.
I have updated drivers in OpenEmbedded before, what you need to do is create a kernel patch to update the driver to the latest version. I have briefly gone through the process here: http://www.electronsonradio.com/2011/05/openembbeded-linux-kernel-adding-pseye-patched-modules/
Basically what you need to do is get the source for the latest driver (the link you provided) and the source for the kernel (you’ll find this in your OE temp directory) then do a diff to create a patch file (similar to what I’ve done here: http://www.electronsonradio.com/2011/06/building-the-bleeding-edge-pseye-driver-for-your-specific-kernel-version/ (although this is more complicated than your case))
Then you add the patch to your OE kernel build and can recompile the kernel with the new driver.

Dave

]]> Comment on Intro to basic cross-compiling for the BeagleBoard by Gabrijel http://www.electronsonradio.com/2011/04/intro-to-basic-cross-compiling-for-the-beagleboard/#comment-163 Gabrijel Fri, 04 Nov 2011 12:56:12 +0000 http://www.electronsonradio.com/?p=36#comment-163 Hi, I don't know if I am on the right way and site, but I will post this question here. I am doing something with beagleboard using Angstrom distribution. I have Wireless dongle based on Atheros chip that needs ath9k_htc driver. I managed to compile kernel with that driver using OpenEmbedded and bitbake. The dongle is working but the connection gets dropped randomly. I find out that the driver is older and now I would like to give a try recompiling new driver. I don't know how to do that using OpenEmbedded (while there I only activated ATH9K_HTC in config, and run bitbake). Is there any way I can use toolchain to compile this: http://linuxwireless.org/en/users/Drivers/ath9k ? While, in the text for that driver, there is no information fro ./configure but only make... Thanks, Gabrijel, Croatia Hi,

I don’t know if I am on the right way and site, but I will post this question here. I am doing something with beagleboard using Angstrom distribution. I have Wireless dongle based on Atheros chip that needs ath9k_htc driver. I managed to compile kernel with that driver using OpenEmbedded and bitbake. The dongle is working but the connection gets dropped randomly. I find out that the driver is older and now I would like to give a try recompiling new driver. I don’t know how to do that using OpenEmbedded (while there I only activated ATH9K_HTC in config, and run bitbake). Is there any way I can use toolchain to compile this: http://linuxwireless.org/en/users/Drivers/ath9k ?
While, in the text for that driver, there is no information fro ./configure but only make…

Thanks,
Gabrijel, Croatia

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