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Questions tagged [embedded]

For questions about software and firmware embedded on hardware.

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91 votes
2 answers
10k views

How do web-servers "listen" to IP addresses, interrupt or polling?

I'm trying to understand the lower details of web servers. I am wondering if a server, say Apache, is continuously polling for new requests or If it works by some sort of interrupt system. If it is an ...
user2202911's user avatar
34 votes
3 answers
10k views

How is the memory inside card chips read without a power source? [closed]

When we use our debit cards or any card with a chip inside of it that gets immediately read when scanned, how is the memory inside the chip retrieved since the card isn't exactly "turned on" much like ...
J.Doe's user avatar
  • 371
23 votes
3 answers
3k views

What is the Linux command that encapsulates almost all of the other commands?

I remember that for Linux running in embedded systems, due to size limitations, it can't pack as many commands as in ordinary workstations. So there is a do-it-all command that can mimic almost all ...
wangshuaijie's user avatar
22 votes
6 answers
6k views

Can we run Linux in something faster than RAM?

This is perhaps a silly question, and may be the result of a misunderstanding. I'm studying CPU's right now, and memory in particular. I was just reading about how much faster SRAM is than DRAM but ...
Ziggy's user avatar
  • 906
14 votes
2 answers
17k views

How do I know if the fonts in a PDF file are embedded or not?

How can I understand that the fonts in a PDF file are embedded or not?
Mehper C. Palavuzlar's user avatar
14 votes
1 answer
2k views

Has anyone evaluated NuttX RTOS?

While reading Linux User's Journal today, I stumbled across a little blurb about NuttX RTOS. I checked out their website and was fairly impressed with its feature set and its ability to put it in an ...
Jay Atkinson's user avatar
10 votes
1 answer
7k views

Linux acting as USB device

I am working on an embedded Linux platform and I have need to transfer data between the platform and a PC. The embedded Linux has a USB device port (like a printer), so this is the means by which ...
user avatar
9 votes
7 answers
5k views

Is there a Linux distro that will easily run "embedded style" on a Raspberry Pi? [closed]

I need a Linux distro that will give me the following: Run on a Raspberry Pi Can reliably survive power loss (like via a read-only filesystem) I've been able to hunt down some documentation on how ...
Dan Harper's user avatar
9 votes
1 answer
24k views

Thunderbird not showing embedded images?

I receive a weekly report in Thunderbird (7.0) from the CMS i use for my website. It shows everything in the correct layout but no images. It shows there are 48 attachments vs showing the embedded ...
L84's user avatar
  • 3,881
8 votes
4 answers
8k views

Word 2013 export to PDF how to keep font vectorized

I have to use Myriad font with Word 2013 (I cannot use other font or software). When export my Word doc to PDF, Myriad font is bitmapped (many pixels). My question is : how to keep the font ...
S12000's user avatar
  • 223
7 votes
4 answers
24k views

What to do with a Linux OS microSD image file?

I am trying to install Ubuntu on the Odroid U2 SoC (http://www.hardkernel.com/renewal_2011/products/prdt_info.php) From this site I downloaded the "Micro-SD image file" (http://com.odroid.com/sigong/...
JDS's user avatar
  • 79
6 votes
3 answers
22k views

Run ifconfig without sudo

I have an embedded Linux running on a imx6 platform. This is a freescale embedded linux. The problem is that there is no sudo available for this linux, but I need to activate and deactivate the wlan0 ...
Irgendw Pointer's user avatar
6 votes
2 answers
12k views

Difference Between Windows XP and Windows XP Embedded

What is the diiference between Windows XP and Windows XP Embedded environment and pros/cons of both these environments.
subbu's user avatar
  • 207
6 votes
3 answers
4k views

Prevent embedded YouTube videos from autoplaying?

When accessing certain websites that have YouTube videos embedded I have noticed that sometimes when the webpage loads the YouTube video will automatically play and taking a look at the source code it ...
Ethan Field's user avatar
6 votes
2 answers
4k views

How do I boot [embedded] linux from sd card?

I am hacking together a quick embedded linux system on a DM816x evm board. Previously I have been using TFTP and NFS to load my kernel and root filesystem to the board. I am now trying to switch over ...
Brandon Yates's user avatar
6 votes
3 answers
13k views

Disable On Screen Keyboard in Windows 7

I run Windows Embedded Standard 7 with a multi touch screen (running on the UPDD driver 4.01.10). The system is running an application in kiosk mode with no need for any other input device. The On ...
Jens's user avatar
  • 679
6 votes
3 answers
447 views

What kind of chip to use for underwater robotics? [closed]

I have no experience with embedded systems hardware and am looking to build a micro-budget underwater robot for exploring the bottom of a lake on the family homestead. I don't have much money to spend ...
marcusw's user avatar
  • 1,768
5 votes
3 answers
4k views

Windows CE On Laptop

I have old-ish laptop that comes with touch screen. What I wanna do is buy GPS module for it and install basic windows ce on it. Then use it as gps navigation with igo 8 for ce Is that possible? ...
user68740's user avatar
  • 279
5 votes
2 answers
5k views

Minimum volume size for FAT16

What are the theoretical and practical minimum sizes for a FAT16 volume? I'm trying to determine the smallest Flash-chip size that can handle a FAT16 FS.
MandoMando's user avatar
5 votes
1 answer
8k views

How to tell if fonts are embedded in a Microsoft Word document

How can I confirm whether or not fonts are embedded in a Microsoft Word document? I already know the process to enable embedding in Word.
sourcenouveau's user avatar
5 votes
0 answers
3k views

PulseAudio cannot open PCM device

I have an IMX6Q based board and want to game with PulseAudio. My board has three sound devices: # aplay -l **** List of PLAYBACK Hardware Devices **** card 0: tlv320aic3xaudi [tlv320aic3x-audio], ...
user2791562's user avatar
4 votes
5 answers
335 views

Upgrading from single core to dual core - Will throughput get doubled?

If i replace a single-core processor with a dual-core processor, Will it increase the throughput by two times ? If No, why throughput does not get doubled ?
Karthik Balaguru's user avatar
4 votes
6 answers
25k views

Embed Powershell in notepad ++

after playing about with Ubuntu 10.04, one of the interesting things I noticed was that you could embed a terminal in gedit. Is there a similar plugin that would enable me to embed a Powershell (or a ...
richzilla's user avatar
  • 2,433
4 votes
3 answers
79k views

Embed an Excel spreadsheet inside a PDF?

Is it possible to include an .XLS file inside a PDF, so that the user could open/extract the spreadsheet from their PDF viewer? (Maybe in the same manner MS Word allows you to include a DDE object?) ...
ewall's user avatar
  • 316
4 votes
1 answer
529 views

Kiosk embedded computer: hide as much as possible before the app starts in Windows

What is the industry-standard solution for touchscreen "kiosk" embdedded computers (in public places) running Windows to hide things as much as possible when the machine boots, until the ...
Basj's user avatar
  • 1,900
4 votes
2 answers
2k views

Single core to Dual core and Interrupts

Does increasing the number of cores result in the increase in the number of interrupts that can be handled by that processor ?
Karthik Balaguru's user avatar
4 votes
3 answers
20k views

Windows Embedded 7 Standard system requirements

I've searched the Microsoft site from one ende to thte other and cannot find the system requirements for Embedded Standard 7 for a device - I can only find the requirements to develop... Anyone know ...
Alex's user avatar
  • 45
4 votes
1 answer
3k views

Upgrading 7 Embedded to SP1

I have approximately 100 devices out in the field with Windows 7 Embedded installed. I have a requirement to upgrade the IE version to a newer version (10 or 11), for this I need to update the ...
Damo's user avatar
  • 285
4 votes
2 answers
5k views

RAM test to run on an embedded device

I want to test RAM on my embedded Linux device for any kinds of problems. Can people suggest any RAM test suites out there? I am working on ARM architecture.
Ankur Agarwal's user avatar
4 votes
2 answers
3k views

How to boot linux direct to application on console with no login

I have a need to start an application on bootup on the linux console and I do not have a need for any type of login or security. I do not need any ALT-F1,F2,etc virtual consoles but I would like to ...
user avatar
4 votes
5 answers
3k views

802.11g USB wireless adapter with Linux AP support [closed]

Are there any USB wireless adapters out there that support 802.11g in AP mode under Linux? Binary drivers are a no-go, as I plan to use it with an ARM device. Support for WPA would be very desirable ...
bdonlan's user avatar
  • 1,563
4 votes
0 answers
905 views

How do I embed a plotly chart in a Notion document?

I have a chart that I've made with plotly in RStudio. I can host it in an arbitrary location, with github or a place like shiny apps. I'd like to make the plotly chart available from a Notion doc. I'm ...
Cauder's user avatar
  • 845
4 votes
0 answers
114 views

Hue shift on youtube.com (but not when embedded!) [duplicate]

Possible Duplicate: Red and blue are swapped on Youtube This is easily the oddest problem I've yet had. When I'm on youtube, and I look at a video, the hue is all wrong. Pure red becomes pure ...
Mala's user avatar
  • 7,388
3 votes
4 answers
320 views

Looking for Fast RS-232 or RS-485 Interface Cards for Windows [closed]

I have a module that is usually bundled with a master module, which we now want to use unbundled. The module uses an RS-485 interface. The problem is, by default, the module runs at 1.25 Megabaud, ...
Sam Skuce's user avatar
  • 315
3 votes
3 answers
3k views

Minimum volume size for fat12

I am searching for the answer, what is the theoretical minimum size for a FAT12 volume? There is only requirements that embedded and normal systems should recognize it on a pen drive as legal file ...
Andrew_ww's user avatar
3 votes
2 answers
405 views

What font format is this?

An E Ink display I bought supports displaying text using a built-in command. According to the documentation, it also allows me to load a different "font library" for Chinese characters: ...
fstanis's user avatar
  • 358
3 votes
1 answer
8k views

installing software without package manager

I have an embedded system running linux. I need to install some software, in particular uucp package containing cu command. This is really all i need. At the moment all I have is a root access to the ...
Art Gertner's user avatar
  • 7,309
3 votes
2 answers
1k views

Is it possible to execute scripts on embedded linux devices (i.e: DSL routers)?

Folks, I wanna find a generic way to run a (simple bash) script on boot sequence of a router with embedded Linux. I have read about ways to do this on devices like: DD-WRT OpenWRT any NAS like D-Link ...
Sopalajo de Arrierez's user avatar
3 votes
2 answers
7k views

Windows 7 Embedded & .NET 4

Can you update the .NET framework on Windows 7 Embedded to the 4 framework?
Chris Nicol's user avatar
3 votes
2 answers
36k views

Changing kernel bootsplash image?

I want to display a custom boot splash image on my Beaglebone Black (running Ångström). I know of three places where images can be dumped to the framebuffer: Bootloader (uboot) - needs display ...
Krumelur's user avatar
  • 677
3 votes
2 answers
183 views

Does programmable hardware exist to allow hardware to be programmed by computers?

I am a programmer and I have never really dealt with the hardware of anything, only software. I want to start building things that I can control from my computer using programming. My question is are ...
ab217's user avatar
  • 335
3 votes
1 answer
2k views

How to reinstate toolbars on an embedded PDF with Firefox and Adobe Reader plugin?

Using Firefox I was viewing a PDF file embedded within a web page, with the toolbar available. After right-clicking to deselect the toolbar (I was testing something) I cannot find a way to reinstate ...
Grundlefleck's user avatar
3 votes
3 answers
16k views

Linux comand line program, serial (COM port) transmistion, Hex

So I need a program that I can run on embedded linux (OpenWRT 8.09), via command line, I need to be able to transmit 8N1, i need to transmit in HEX (not ascii,) and preferaby also in decimal. As far ...
Frames Catherine White's user avatar
3 votes
1 answer
2k views

single chip computer, microcontroller and embedded system

I was wondering what relation and differences are between single chip computer, microcontroller and embedded system? Are single chip computer and microcontroller the same concept? Is microcontroller ...
Tim's user avatar
  • 17.3k
3 votes
1 answer
14k views

embed file in Excel cell

I'm working on a simple "DB" for some people at work and I don't want to do anything fancy. the fields should be something like name , number , notes , File:resume, notes (where file:notes is the ...
Crash893's user avatar
  • 1,560
3 votes
6 answers
73k views

How to print embedded images in e-mails?

My boss has been trying to print his e-mails with embedded images, but the images don't print. All we get is a placeholder space where the image should be. Ideally, we'd like to have an option to ...
Jon Seigel's user avatar
3 votes
2 answers
13k views

Cheapest single board computer which can run Linux? [closed]

I'm searching for the cheapest single board computer which can run Linux. It must have ethernet and at least one serial port. I'm currently looking at these modules from Technologic Systems, but ...
user avatar
3 votes
4 answers
6k views

Embedding videos in Evernote notes?

Using the Evernote web clipper, I have the option to clip Youtube video pages. This results in a note with an embedded video thumbnail, which when clicked opens the Youtube page: How can I manually ...
Trae7's user avatar
  • 243
3 votes
2 answers
76k views

copy file from network device to local computer via TFTP

Network device (embedded Linux) connected to local computer (Windows OS). What is tftp command to copy binary file from network device to local computer? Also, what's command to copy file in the ...
Lexx Luxx's user avatar
  • 409
3 votes
1 answer
1k views

Udev rules on Ubuntu/OMAP (Beaglebone)

I have an IROX Pro-X weather station and am running wview weather software on Ubuntu 12.04. I have been running it on my old laptop for a few months with no problems but am trying to run it on a ...
Jim's user avatar
  • 31

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