The ARM architecture is a 32 and 64-bit instruction set architecture (ISA), based on the reduced instruction-set computing (RISC) design. The 32-bit ARM architecture is the most widely used 32-bit ISA. The ARM architecture is often licensed to other third-party companies, to allow the development ...

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Is it possible to catch the instruction that wrote an invalid value into the pc register?

After an instruction, for example, pop {pc} writes an invalid value, say 0, into the pc register, CPU will try to fetch the instruction located at 0, which will usually trigger a segment fault. ...
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12 views

Nginx on armv7l installation

I am trying to cross-compile Nginx for Armv7l. See the followings steps already done (following this tutorial mainly Nginx for arm) Step 1 ./configure --without-pcre --without-http_rewrite_module ...
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22 views

OOM kills and swappiness for IoT devices with eMMC and SD storage?

I experience an occasional Out-of-Memory (OOM) kill from the compiler on BeagleBoards, CubieTrucks, etc. They are IoT devices, powered by ARM, generally have 512 MB to 2 GB of RAM, and use 4 or 8 GB ...
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45 views

What is the minimum amount of RAM required to run Linux Kernel in ARM cortex-a5?

I want to know what is the minimum amount of RAM required to run Linux Kernel (4.6) in ARM cortex-a5. Now I am using 32MB PSRAM but whenever I am loading vmlinux (elf format) through debugger to ...
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1answer
70 views

Issues building Node.js v4 for ARM with software floating-point emulation

My team is developing a product on an embedded Linux OS running Node.js for the web back-end for device configuration. We're porting our code to a system with an arm processor that does not have a ...
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1answer
19 views

Single board computers standby mode

Is there any way to get smartphone like standby on a single board computer (like the RaspberryPi, Odroid or something)? Most of those boards seem to consume about 0.5 - 2 watts on idle, which is ...
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1answer
57 views

How do I download a Debian ARM package from another computer

I am trying to use apt-get to install some packages on an offline system. I have a small ARM embedded system running Debian. It is not connected to the internet. I would like to download some Debian ...
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2answers
30 views

Things That Affect NIC Cards' Performance?

Folks, I have a laptop and a tower. And I use EtherCAT (through Ethernet port) on both. But I notice that if I unplug my cables on the tower, I loose a lot of frames, where as in the laptop I may not ...
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1answer
61 views

Which address space is used in system calls? physical? or virtual?

Explanation There’s two kind of address space virtual and physical. On the physical model (typically used by the kernel) the memory is bounded and each address correspond to physical ones. The ...
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21 views

How to identify GPU memory on ARM Linux

I am developing an appication reserving lots of GPU memory on ARM devices. For some devices (eg. Nvidia Tegra based) some of the memory is reserved in the 'cached' area as it seems. Particulary, the ...
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19 views

How to access EL1 resources from EL3 on armv8?

The working secerio is that I'm testing OP-TEE on a Hikey board, and they use arm-trusted-firmware to be the monitor running in EL3. I'm trying to access some resources in EL1 by specifying an ...
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21 views

NanoPi2 external wifi dongle doesn't go UP

I've got a NanoPi2 (it has an internal wireless card embedded) and I'm trying to configure another wireless device (usb) because I need two wlans working both at the same time. I know that the ...
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1answer
22 views

GPU capabilities

The specs for the KB3288 state that it can decode 2160@24fps H.264 video. What I'm taking away from this is that this computer can play any 2160 H.264 video at 24fps, which doesn't really make sense ...
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17 views

Does HiKey board have PL310 cache controller or cache lockdown functionality?

I know that HiKey board has Cortex A53 core. Based on ARM v8 specification, it may comes with a PL310 cache controller or some co-processor that supports the similar cache lockdown functionality on ...
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1answer
133 views

Installing Eclipse 4.5 on ARM Ubuntu

I recently got an excellent deal on a Chromebook (Hisense C11), and have used crouton to install Trusty Tahr (14.04): (trusty)craig@localhost:~$ uname -a Linux localhost 3.14.0 #1 SMP PREEMPT Wed Apr ...
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0answers
1k views

kali sana on android gives the following error: the selected extractor cannot be found: ar

hey i have a problem with installing kali sana using linux deploy on my mi4i, when i start the download&installation it says: "E: The selected extractor cannot be found: ar" trying it with debian ...
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0answers
35 views

Can KVM run on Freescale IMX6 SABRE board?

I'm wondering if KVM can run on Freescale IMX6 SABRE board, which has ARM Cortex A9 processor? I searched around but couldn't find any information about this. Thank you very much in advance!
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1answer
344 views

Not able to boot Debian arm64 on Windows using Qemu

I am running a Windows machine and I want to emulate a Debian OS with arm64 architecture. I downloaded an ISO file to setup a fresh VM. I used the following command: qemu-system-arm.exe -cdrom debian-...
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0answers
54 views

jlink This device cannot start. (Code 10) in win7 after update driver

I have one J-link ARM programmer, SO for first time i start it via KEIL software, and KEIL updated it's Driver, So after driver Updated , it's made crazy!!! and the led of its got down , so when i ...
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0answers
18 views

dpkg can't configure python-pkg-resources

Cubieboard2, Debian Wheezy $ uname -a Linux cubieboard2 3.4.79 #2 SMP PREEMPT Sat Feb 15 10:02:52 CST 2014 armv7l GNU/Linux I'm trying to update the packages, but the process fails at python-pkg-...
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0answers
62 views

How to Download C code to De1-SoC and get it running

I have a DE1-SoC board and would like to play with it. My wish is to write a simple program in C, compile, then upload the binary to the board. However, I am not sure where to start from. Do I ...
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1answer
43 views

Are popular benchmarks valid comparisons of architectures?

Recently, people have been very excited over Apple's ARM processor capabilities, citing benchmarks results that rival x86 processors. However, I am kind of skeptical of these benchmarks: though the ...
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105 views

Wanting to run x86 binaries in Crouton Linux on dev-enabled Asus Chromebook Flip (ARM)

Yes, I know this may be very esoteric. :) I have a few simple x86 programs which run fine using Wine in any stock x86 desktop Linux. None of them have any 3D graphics or unusual hardware needs. I'...
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1answer
2k views

Difference between ARM64, ARMel, and ARMhf

I am trying to download a Debian image for an ARM Cortex-A7 processor but I can't figure out which image to download. I have looked on the Debian website, and see three different downloads for ARM ...
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1answer
1k views

Trying to install Openmediavault on bananian linux 15.08r1 but facing problems

For banana pie, bananian users, how have you managed to install openmediavault? Here's what I tried: apt-get update && apt-get upgrade -y echo "deb http://packages.openmediavault.org/public ...
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175 views

Apache httpd-2.2.10 crosscompile to ARM

I'm trying to crosscompile Apache 2.2.10 to ARM architecture. I've exported CC, ARM variables. Also I've sucessfully crosscompiled openssl, apr, apr-util and pcre packets for target ARM architecture. ...
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0answers
89 views

streaming camera video to server using motion

I have a DLINK DCS 930L IP camera. I am using motion software right now to stream the video and also record video from the camera. But, now it just streams video to the local network. in the ...
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1answer
76 views

raspberry pi (armhf) printing

i migrated my installation of point of sales (basically generic keyboard mouse i/o) from old e2200 pc to raspberry pi. everything going smooth until the driver of the printer cannot be installed as ...
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0answers
85 views

Is ARM PL310 only in Cortex A9 processor?

I know that ARM Cortex A9 processor can be equipped with PL310 cache controller. However, I'm not sure if other ARM processors may support PL310 cache controller? I searched Cortex A7, A53, and A57, ...
2
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0answers
159 views

Debian ARM and Brother MFCJ5320DW with CUPS

I am trying to use a Brother MFCJ5320DW printer with Debian ARM, which is similar to: Debian ARM and Brother DCP195C with CUPS http://unix.stackexchange.com/questions/191813/installing-brother-dcp-...
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1answer
402 views

How to install Arm 7 distribution of Nodejs

Nodejs provides pre-built binaries for ARM7: https://nodejs.org/dist/latest/ There's nothing in the readme about installation on ARM7. How can I ensure node and npm are installed globally. Is it ...
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0answers
21 views

Do the ARM CPUs have legacy support/compatibility?

Traditionally the x86 CPUs included legacy support for older CPUs. This is: modern CPUs always could (can) execute programs designed for older CPUs. I have seen there are multiple ARM CPUs: ARMhf, ...
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0answers
112 views

Can't use sudo when autologin in Arch Linux

I have a Pandaboard running Arch Linux, the default non root user is alarm. I'm trying to automatically login at startup with the alarm user. I followed the instructions here and created the file /etc/...
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0answers
97 views

Getting “No Such File or Directory” but the program exists in Debian armel

I’m running Debian armel in Qemu and trying to run an ARM program but am running into issues: user@debian-armel:~$ ls -lbat total 32 drwxr-xr-x 2 user user 4096 Sep 14 23:54 . -rw------- 1 user user ...
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0answers
82 views

How to test ARM Ubuntu under Qemu the easiest way?

I would like to play with ARM version of Ubuntu (with graphical support) under Qemu, but I have problems finding any tutorial on how to get it done most easily (I would prefer to just download some ...
2
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1answer
1k views

Instal 3rd party applications on surface 2 rt 8.1

Does anyone know if there is a valid script yet to unlock windows 8.1 RT? To install applications recompiled for ARM, Or will there be one for the possible update to windows 10 RT (even though ...
0
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0answers
454 views

HDMI to VGA converter, no image from Banana Pi

I'm trying to use a Banana Pi with Bananian OS (Debian 7 based) on a monitor that does not have a HDMI input but a VGA. So I bought a HDMI to VGA adapter. I followed the instructions written here to ...
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0answers
66 views

Proper GCC setting for my CPU

I'm trying to compile a simple C program for my Colibri T20 running Angstrom Linux. The output of uname -a is here: Linux colibri-t20 3.1.10 #1 SMP PREEMPT Fri Mar 20 02:38:59 CET 2015 armv7l GNU/...
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1answer
36 views

Output of dstat is getting buffered (30 seconds)

We are running dstat on a one second update frequency using this option: --output <filename> The data is correctly written but only every thirty seconds. Here is the full dstat command ...
0
votes
1answer
305 views

Install an alternative browser on Surface with 32bit Tegra 3 Processor

I found no solution to replace Internet Explorer on my surface 32 Bit ARM-Processor. I tried to install the RT Jailbreak Tool for Windows RT 8.0 But that one doesn't seem to work on my Surface with ...
0
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1answer
372 views

Wired connection being dropped

I have an ARMv7 microcomputer (based on Freescale IMX6) that works as media server, running on Archlinux. The last couple of weeks i've been having issues with the wired connection (eth0), it drops ...
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0answers
127 views

Arch Linux mpd error-

MPD installed on Arch Linux ARM resulting in this error: mpd: /usr/lib/liblzma.so.5: no version information available (required by /usr/lib/libavcodec.so.56 I already cleared some of the errors ...
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0answers
73 views

Use of single board computers in real world [closed]

I have few questions about single board computers. Are there any commercial products/projects which uses single board computers? Eg: Raspberry Pi , Cubieboard Are they capable of running for long ...
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3answers
359 views

I'm not able to connect with SSH because of SUID warning

When I try to connect with another machine, after this command below: user1@host1:~$ ssh user2@host2 user2@host2's password: I receive: WARNING: Your password has expired. You must change your ...
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0answers
22 views

Is it possible to bring up the OS without any displays on an armStone A9? [duplicate]

How to bring up the operating system on an armStone A9 without any additional displays, but just via LAN cable? My network setup looks like this: Details: PC (machine 1): Ubuntu 14.04 LTS / ...
1
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1answer
139 views

Does wpa_gui need wpa_supplicant to initialize first to work properly?

I am using Linux on a custom board based on the Freescale MCIMX6Q-SDB (armv71). I installed wpa_gui, a GUI for wpa_supplicant, on the custom board. I'd like to know if I have to initialize ...
0
votes
0answers
445 views

Compile brscan3 on Raspberry Pi (brother scanner)

I am trying to compile brscan3 (Brother software for scanner) from source file on my Raspberry Pi (arm architecture). I tried ./configure but I obtain this error: config.status: creating Makefile ...
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votes
1answer
88 views

How can I map 4GB of RAM memory to 4GB CPU address space [closed]

I'm confused with a situation where there is 4GB of CPU address space and I have 4GB of RAM memory. Now is it possible to map this whole 4GB of RAM memory to CPU address space and if so, then where ...
1
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1answer
1k views

locales broken on Beaglebone Black running Debian

So this all started when I wanted to install my custom daemon on my Beaglebone Black running Debian using update-rc.d mydaemon defaults 97 like I've done many times during it's development on my Mint ...
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votes
1answer
728 views

What is the difference between Intel (CISC) and ARM (RISC) architecture? [closed]

what is the basic difference between Intel (CISC) and ARM (RISC) architecture?