Questions tagged [arm]

Questions related to the CPU and instruction set of the Raspberry Pi. See also: cross-compiling

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7k views

Raspberry Pi 2 stops booting after the message “Starting Kernel” [closed]

This is what I have done till now: Flashed a sd card with arch linux image for my raspberry pi 2. I have followed instructions as mentioned here. So far so good, my raspberry pi 2 boots properly with ...
-1
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2answers
586 views

Kali Linux and Raspberry Pi + phone

Sorry for the weird title but I seriously need to know, If I bought a raspberry pi, a wifi dongle and an sd card and install kali linux on it, would I be able to SSH into it from my phone so I have a ...
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1answer
12k views

“cannot execute binary file: Exec format error” cloudfoundry cf-cli

I am installing cloud foundry command line in Raspberry P2 running raspbian Jessie, I have tried ways using the Installer and the binary Installation, I have tried to force the architecture amrhf. The ...
2
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0answers
852 views

Raspberry PI 3 ARMEL support

I am working with a vendor that provides drivers that aren't compatible with PI3's ARMHF architecture. Unfortunately this vendor doesn't plan on releasing compatible drivers anytime soon. Excuse my ...
2
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2answers
4k views

Raspberry Pi 3 Model B Timers

Since BCM2837 is a cortex-A53, it should have architected timers accessible through CNT* registers. Does Pi 3 have one for each core? Are they free running or derived from the GPU timers as before? If ...
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2answers
15k views

What is /dev/vchiq in Raspberry Pi?

I am using Raspberry Pi 3 and raspbian jessie and i came across /dev/vchiq by trying to call program (omxplayer) with perg-cgi which would play some music on my RiPi. And i coudn't get it to work. ...
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1answer
789 views

Ubuntu 16LTS OR MongoDB v3.4 on Raspberry Pi 3

I was reading info on this Wiki. It says... With the release of the Raspberry Pi 2 Model B and its ARMv7-based BCM2709 processor, it is now possible to run Ubuntu directly on the Raspberry Pi. ...
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1answer
305 views

Make a linux to run on ARM architecture

I have a Raspberry pi board and I need to make a linux distros to run on my board without use Raspberry pi kernel. My main purpose is Make a .img file and write to SD-Card then run on my raspberry ...
5
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0answers
647 views

Debugging a RPi using SWD

Has anybody been able to figure out how to debug a Raspberry Pi 3 model B using SWD? To be clear, I'm looking to debug the Pi itself using SWD. We've tried setting up the GPIO pins to use JTAG-SWD, ...
2
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1answer
210 views

RealBoy emulator a real dud

There is an open source game boy emulator called realboy that I was hoping to use on pi, and modify slightly. I can get it to build on Ubuntu just fine. When I build it in raspbian, it does build (...
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2answers
388 views

Issues in cross compiling buildroot for Raspberry Pi 2

Facing the issue below while building a custom OS for the Pi 2 using buildroot, all the configs and everything are going fine . Whenever I try to compile the image, I'm facing this issue. make ARCH=...
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1answer
2k views

Is it possible to fix the “cannot find -lgcc” and “cannot find -lgcc_s” error messages when using arm-linux-gnueabihf-g++ as a linker?

I get the following error messages: ./Downloads/tmp/usr/bin/../lib/gcc/arm-linux-gnueabihf/4.6/../../../../arm-linux‌​-gnueabihf/bin/ld: cannot find -lgcc_s and Downloads/tmp/usr/bin/../lib/gcc/arm-...
3
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1answer
257 views

PI 2 + .net - missing coreclr.dll

My first time trying to get a PI working... Neat idea, pulling out my hair though. No matter what project I build [simple or not], when deploying I get the missing coreclr.dll. What SDK am I missing? ...
1
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1answer
987 views

How to simulate Ubuntu ARM image on Raspberry Pi with Virtualbox?

How do you run the Ubuntu ARM image in Virtualbox (ultimately managed through Vagrant) for testing a Raspberry Pi configuration? I can find a ton of guides for running various pre-built Raspberry Pi ...
4
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2answers
5k views

Virtualization on Pi 3 Raspbian

The new Pi 3 was announced this morning. It's the first Pi to ship with a 64-bit processor, the ARM Cortex A53. The product page for that chip suggests that it's capable of hardware virtualization. ...
2
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2answers
4k views

Realtek 8192eu driver on Raspberry Pi (Xbian)

I had the misfortune to buy two of these devices off ebay on the basis they were "compatible with linux, raspberry pi, and access point mode". I'm running Xbian on my Raspberry Pi using a wired ...
15
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4answers
13k views

Visual Studio Code & .Net Core ARM support

I am new to the Raspberry Pi platform and I have been collecting resources and trying to determine what the little computer is (not) suited for. I understand that Python is the go-to programming ...
2
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1answer
7k views

Verify working of I2C bus though command

I am trying to verify I2C bus through command (i2c tools) only. For this purpose I detect my I2C buses as follows ls -l /sys/bus/i2c/devices/i2c* lrwxrwxrwx 1 root root 0 Jan 27 12:...
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1answer
807 views

Run armv6 software on raspberry pi 2

Is it possible to install and run software that was designed for the raspberry pi 1 on my raspberry pi 2? I plan to install this software along with arch Linux soon and I would just like to know if it ...
2
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1answer
889 views

ARMv6 optimized x.264 compile fails; any ideas?

I'm using Mencoder on a Raspberry Pi B (1st gen) with modernized raspbian (i.e. the new builds that work on RP2) to make timelapse films. In general it works well, but i wanted to add x264 codec ...
6
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1answer
1k views

Dial up HSF usb Conexant modem linux driver for ARM architecture

Hello I've being trying to install my usb HSF Conexant dial up modem to my Raspberry PI 2 B which is running Raspbian OS. I checked a company named Linuxant that makes these kind of drivers but ...
1
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1answer
723 views

Advanced servo control

I just bought a small robot arm (The MeArm). I can control my servos, but not as I want. Later I want to control the MeArm with my Wii remote. About the script I thought about a counter or ...
6
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1answer
5k views

Cross-compile x86-64 code on Raspberry Pi 2

I'm doing experiments regarding compilation of the Linux kernel on various platforms, but mainly on the RPi and on x86-64 machines. There's no shortage to the links on Google describing how to compile ...
2
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3answers
4k views

Emulating Raspberry Pi 2 (ARMv7) on OS X

I am developing a commercial product and using the Raspberry Pi 2 as a test platform. The final product will use an ARMv7 CPU as well. As of right now, using the RPi2 via a VNC is killing me. Super ...
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2answers
998 views

Does a Raspberry Pi 2 Model B (quad-core ARM Cortex-A7) have 4 program counters?

I want to do baremetal programming on a Raspberry Pi 2 Model B (quad-core ARM Cortex-A7). I don't have much experience on multi core programming. I have a question regarding bare metal multi core ...
2
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1answer
129 views

Which hardware platform to use for measuring hypervisor performance on ARM?

As a part of my course project, I am required to measure network bandwidth and other aspects of Xen, KVM, and Xvisor hypervisors. Most research literature uses cubieboard for such experiments. What ...
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1answer
4k views

Installing node.js on v1 Model B - segmentation fault

newbie here. Raspberry Pi 1 Model B. Raspbian. Had Adafruit WebIDE before. pi@raspberrypi ~ $ node -v Segmentation fault tried to uninstall: apt-get remove nodejs and reinstall, without any luck. ...
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1answer
862 views

ARM ELF file in IDA Pro [closed]

I'm a student. And I'm going to study reverse engineering on Raspberry Pi 2 in IDA Pro. I have try disassembling ARM ELF file("start.elf"). But, Result was not accurated. I think I selected wrong ...
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0answers
1k views

Install PostGis on Raspberry Pi from a compiled PostgreSql 9.3 installation

It took me more than one hour to compile and install PostgreSql 9.3 on Raspberry Pi as as explained here in the comments. But I need to enable Geo-spatial extensions from PostGis. While installing ...
7
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4answers
10k views

What instruction set is used on the Pi's ARM/Broadcom chip?

I am trying to figure out what instruction set (x86_64, IA-32, etc.) is used by the RPi's Broadcom chip (really an ARM 1176JZF-S), because I'd like to understand how linux can run on it. My ...
3
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1answer
2k views

QEMU for Raspbian Wheezy on Ubuntu - host is 'none', no job control, invisible text?

I'm having some issues getting Wheezy to work in QEMU. I've tried a lot of different combinations of arguments, all with the same results; this is the most recent I've tried. > qemu-system-arm -...
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2answers
2k views

Pi 2 CPU Documentation

I'm interested in processor architecture, and assembly programming, but I can't seem to find any documentation, or even the datasheet on the CPU of the Pi 2 (BCM2836). The document I'm looking for ...
5
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2answers
1k views

rpi 2: Unable to change irq affinity

I am trying to optimise getting GPIO interrupts into userspace. On the single core rpi 1 I couldn't get rid of quite some timing jitter, which makes sense as there's a lot of stuff going on on the cpu....
3
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1answer
7k views

Can MINIX 3 work on the Raspberry Pi 2?

The MINIX 3 OS has been ported to ARM based CPUs with development focusing on the Beagleboard. The original Raspberry Pi could not run MINIX however the newly released Raspberry Pi 2 uses an ARMv7 ...
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0answers
715 views

High Resolution cycle counter for Raspberry Pi

I recently got a Raspberry pi Model B+. I intend on benchmarking the board, and hence was trying to find a solution which is similar to "rtdsc". According to the following article, i can access the ...
19
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4answers
18k views

How is Raspberry Pi “open source” if it uses ARM?

All I've ever heard about Raspberry Pi is that its an "open source" SoC. But I see that the CPU inside the BroadCom SoC is an ARM chip. My understanding of open source hardware is that every single ...
0
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1answer
635 views

Is it possible to use Haskell on Arch Linux ARM?

There isn't a ghc package for armv6, which is what the pi uses. It does not need to be able to compile on the pi, just run on it.
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1answer
3k views

programming raspberry pi with C/C++ simd instructions [closed]

Is it possible to use C/C++ SIMD instructions in a program and run it on a raspberry pi model b+ ? The raspberry pi has an arm processor, and there's a C/C++ SIMD instructions set for the ARM ...
5
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2answers
5k views

ARMv6 Instruction set for getting timestamp counter (TSC)?

I'm trying to get timestamp counter (TSC) of CPU. I've succeeded on my PC with Intel i7 CPU. Assembly code in this links helped me. Now, I want to do it on my Raspberry Pi model B. The problem is ...
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2answers
421 views

Hardening Raspberry Pi performance for reliable 24x7x365 use [duplicate]

I am working on a project, which currently is a pet project and am using Raspberry Pi model B+ for it. But, while working this prototype a few questions have started coming up, so my question is in ...
2
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0answers
2k views

Assembly - set gpio as input

I have 2 leds and one button. both green and yellow led off when booting from card. When the button is pressed, i want to turn green led off and yellow led on. However, I have to write assembly. I ...
0
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1answer
815 views

Viewing battery status Archlinux arm

I have a portable USB charger/external battery pack. The exact model is this one. My raspberry pi is running ArchLinux Arm. I am trying to view the battery status and other relevant information. ...
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0answers
1k views

Cannot find -lgcc -lc

I'm trying to compile the FreeRTOS port to Raspberry Pi, but when I compile, I get the error: arm-none-eabi-ld: cannot find -lgcc arm-none-eabi-ld: cannot find -lc make: *** [kernel.elf] Error 1 I'm ...
0
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1answer
222 views

What values in the DMA TI.PERMAP field map to each field?

In the BCM2835 datasheet, on page 51, it says that bits 20:16 in a DMA control block's Transfer Information word defines its PERMAP - Indicates the peripheral number (1-31) whose ready signal ...
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0answers
138 views

Memory addresses

I am writing an assembly program, assembling it and replacing the kernel.img file on a SD card with raspbian installed on it. Will the memory address of the first instruction be zero? Either because ...
2
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2answers
1k views

How to stream video and audio from a Raspberry Pi?

A Skype video call would be a perfect solution, but I know Skype isn't designed for ARM processors. I just need something that can stream video and audio between the Pi and another computer running ...
1
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1answer
233 views

Transition to Embedded Linux like Pi from Microcontrollers [closed]

I am currently familiar with design/programming custom embedded systems using PIC Micro-controllers with various peripherals like I2C, SPI Flash, UART,ADC,etc with some additional analog processing ...
1
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1answer
598 views

why Broadcom BCM2835 SoC for pi?

Why did the Raspberry Pi foundation select "BCM 2835" and not any other SOC for Raspberry Pi? Is any other SOC possible ? If yes , which ?
2
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2answers
404 views

How to use ARM software in Raspberry?

I would like to run Maestro Control Center software (for Mini Maestro 24-Channel USB Servo Controller) in Raspberry. But it is not ARM software. It is availabe for Linux and Windows. I'm total newbie ...
1
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3answers
3k views

Raspberry Pi kernel configuration for USB mouse and keyboard

I've been trying cross compile kernel using this guide. http://elinux.org/Rpi_kernel_compilation#2._Cross_compiling_from_Linux. However, all my kernel doesn't support USB mouse and keyboard. In the ...