Questions tagged [embedded]

An embedded system is a computer system designed for specific control functions within a larger system.

Embedded systems contain processing cores that are typically either microcontrollers or digital signal processors (DSP). The key characteristic, however, is being dedicated to handle a particular task. Since the embedded system is dedicated to specific tasks, design engineers can optimize it to reduce the size and cost of the product and increase the reliability and performance.

Source: wikipedia

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How to manually setup network connection from Busybox shell (ash)?

An embedded device running Linux version 2.6.26.5, ARM Linux Kernel. Busybox v1.10.2 shell (ash), I'm in Busybox shell. I want to set up connection between embedded device and computer. Is it possible manually set up network connection from Busybox…
minto
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Problem IP Forwarding is Dropping Rx Packets on Embedded Linux Network

I have a pc and two embedded linux based systems that I am trying to chain together through IP forwarding. They span two separate local networks. Both networks are wired. I can ping 10.10.10.6 from the PC and ping 10.10.30.1 from target 1. the…
user27670
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Discovering embedded management tools

I have a list of 130 IP addresses that I need to find out if they are ilo or another remote management tool. Is there a way to script this. Can I use the test-netconnection command in powershell.
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Using a configuration management tool to configure nodes without ssh

I'd like to manage the configuration of several devices running embedded Linux. There is a web server in my environment which has a SOAP interface I can use to get/set all the parameters of each of the devices I want to configure. The web server…
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Architecture Choice for an Embedded Display Device

So recently a client asked me to build her a virtual calendar. She's tired of having paper ones and would rather hang a few monitors on the wall instead and have them update themselves wirelessly. The key constraints for this device: - Must be no…
ParoX
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Compact Flash mounted Read Only

I have a board, running linux (RedHat, kernel: 2.4.32). The board has been up and running since long time. However suddenly, some errors are being observed in the logs, and the Compact Flash (present on the board) gets mounted as read-only. Here are…
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Strange UDP/TFTP Problem

My TFTP client only seems to be getting responses from the TFTP server to its RRQ (download requests) if I watch the traffic in wireshark. If I shut down wireshark (running on the TFTP server), the server does not respond to the RRQs from the…
vicatcu
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PCI configuration

I would need an help to solve a problem. I work on a system based on CompactPCI platform. The system is composed by: 3U CompactPCI CPU Blades (based on Pentium M processor) 3U CompactPCI proprietary board equipped with PLX PCI9050…
Kevin
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Wiping out user and/or root password in embedded linux

We have a security camera system running an embedded linux. It boots with Lilo as a bootloader and has no tty access once booted. I don't know any username either. SSH/22 is open, but I don't think brute force is an option. I have tried all the…
TryTryAgain
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embedded linux serial terminal

I have built a custom embedded system using debian 6.0. using /etc/inittab i have made several (8) processes running on different /dev/ttyX terminals, which i can switch between using Alt+FX key combination. the thing is using this setup i need to…
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Does anyone know where I could find a 2 input USB voltage meter?

What we really need is a tiny UPS, of sorts. We'll be hooking up a solar cell and a battery to a single board computer. Currently, that SBC is a custom Pic32 device, and it does it's own UPS and voltage monitoring duties. I've been tasked with…
John O
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Windows 7 Embedded VM in Azure

I have a really weird request. My employer has a product that only runs on Windows 7 embedded machines and now they want to have some test VMs in Azure. Now when I try to RDP into the machine it doesn't connect (locally I can RDP to the machine so…
Levi
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SSH cannot login with root pasword

I have a buildroot system that I cannot login into with via root. Root login using .ssh/authorized_keys working, but isn't practical since it's a read-only filesystem. Telnet root login also works. How can I enable password-based login and can I…
jackhab
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Not able to connect to IBM Bluemix with TLS1.2 Security?

I am trying to connect a device to IBM Bluemix with TLS1.2 security with Quectel M95 GPRS Hardware. Can any one help why I am not able to open SSL connection. I am getting QSSLOPEN command response as '-1'. The command firing sequence is: { "ate0",…
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Trace access to root filesystem: Process and filename

I run linux on eMMC. I want to reduce the IO which gets done on the device. I don't like to search the needle in the haystack. I want a way to trace the access to the device. I want to see the process-ID and the file-name which does write operations…
guettli
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