beagleboard

问题 I'm attempting to set up x11 forwarding to monitor video on an embedded robotics platform yet I cannot seem to get the board to generate graphical output. I'm running Arch Linux on a Beagleboard xM wired directly over ethernet (though, I plan to use WiFi in the future). When I try to set the DISPLAY variable it will accept it but when I attempt to run an x11 application is says: (Object:287): Gtk-WARNING **: cannot open display: [displaynamehere] obviously [displaynamehere] was whatever I

问题 I have a wider range question here, so if someone could point me to a doc or article that could explain this, that would suffice. Needless to say, a days worth of googling has gotten me nowhere, and I could use a helping hand. I am connecting to a BeagleBoard with BlueZ 5.9, and my intent is to: Create a Gatt server, Load it up with some writeable attributes, and Advertise that server to connect to an android device. I've created the Android app that will connect and operate as the central,

问题 I just got my BeagleBoard-Xm and I'm wondering if there is any detailed step by step tutorials on how to get a very simple bare metal software running on the hardware? The reason I ask is I want to deeply understand how the hardware architecture works, everything from the bootloader, linkers, interrupts, exceptions, MMU etc. I figured the best way is to get a simple hello world program to execute on the beagleboard xm without an OS. Nothing advanced, just start up the board and get a "hello

问题 Is it possible to compile native GCC for ARM (host == target == ARM) using Code Sourcery G++? If it is not possible, could I use crosstool-NG to build the cross-compile and then using this one for compiling the native ARM GCC? Thank you, Edit: as to why: I'm creating my own distro for beagleboard... 回答1: CodeSourcery provides prebuilt toolchains only for Linux/x86 and Windows (see "Host System Requirements" here). If you want a native ARM-hosted toolchain, you should be able to build one

问题 In the beagleboard or beaglebone are different modes to work the pin. With the previous kernel they are located in /sys/kernel/debug/omap_mux. Do u know with the last Kernel where are those files? 回答1: I found many of the examples provided at hipstercircuits to be a bit overwhelming; especially if you're just looking to adjust the pins to mode 7. If anyone reading this is having the same issue, the following link may help: http://bbbadventures.blogspot.ca/2013/06/pinmuxing.html It provides

问题 I am starting kernel or operating system programming for beaglebone with TI - AM3359 SoC. I have written an assembly program to write some characters to the serial interface (just to start off with) and i want to run this as kernel on beaglebone, just like linux kernel. what is the linking address for my program? and How to boot it from u-boot by default? I don't want to get into u boot programming and want to use the available u-boot which came with angstrom distribution along with the BBone