Questions tagged [embedded]
For questions about software and firmware embedded on hardware.
226
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Start Chrome in kiosk mode with black background instead of white
For an embedded project, when starting Chrome in kiosk mode, just after boot:
chrome.exe --kiosk http://127.0.0.1/index.html
there is a 500 ms delay before the site is displayed, during which Chrome ...
- 1,541
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0
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75
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Configure amount of reserved memory for Linux kernel
I am running Linux on an embedded device with 64MB of physical RAM. Linux prints the following message when it boots:
[ 0.000000] Memory: 58944K/65536K available (3072K
kernel code, 576K rwdata, 832K ...
- 1
0
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0
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9
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cdrtools and dvd+rw tools installing issue in am5728 linux kernel?
I am installing dvd+rw-tools-7.1 and Cdrtools-3.02a09 in am335x using below commands
1.dvd+rw-tools-7.1
root@am57xx-evm:/dvd+rw-tools-7.1#sed -i '/stat.h/a #include <sys/sysmacros.h>' growisofs....
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56
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Official source for portable embedded Chromium binaries, for kiosk use, with H264 support
I am using Chromium in kiosk mode, for an embedded computer project.
We can find portable snapshots on https://commondatastorage.googleapis.com/chromium-browser-snapshots/index.html?prefix=Win_x64/
...
- 1,541
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0
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83
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SNMP - AgentX master disconnected us during getnext & walk
My observations are as follows.
I can run an SNMP get request as many times on as many different oids, and the request will return the value. But as soon as run a GetNext request, I see
NET-SNMP ...
- 103
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votes
1
answer
611
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Extract video files embedded in an android app convert the .exo files to mp4 and save it to my PC
I wanted to extract video files embedded in an android app and save it to my PC. The videos are embedded in the app. There is no way to get the URL for the videos.
I tried getting the .exo files and ...
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700
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RS232 cannot be discovered as /dev/ttyS* or /dev/ttyUSB* on ubuntu of wsl 2
I'm having problem to get serial connection using RS232 (to USB) and picocom of wsl. From Windows I can see that my RS232 is using COM24 and from lsub on wsl I can also see my RS232. However, if I do ...
- 111
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134
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Wget download from Dropbox on linux embedded
I'm trying to download a file from Dropbox via wget.
I tried this command on my Desktup machine (Ubuntu 20.04):
wget https://www.dropbox.com/s/xxxxxxxxxxxxxxx/java4.pdf?dl=1 -O file.pdf --no-check-...
- 21
4
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1
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336
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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 ...
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125
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How to test CPU hot plug on Windows?
I tried CPU hot plug testing with Linux using the command lines :
Set online/offline individual core or group cores:
echo 0 > /sys/devices/system/cpu/cpu0/online
echo 1 > /sys/devices/system/...
0
votes
1
answer
468
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Docker daemon not starting on embedded
I am unable to run docker daemon on my embedded device using a custom Linux distro (Yocto based). The initialization ends with the following error:
failed to start daemon: Error initializing network ...
- 103
0
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0
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151
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Linux embedded system: detect power on USB (as USB device)
I'm working on a Linux embedded system that can draw its power from two distinct sources:
a dedicated power supply
power supply through USB (connected to an external USB host)
I must know when the ...
0
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2
answers
53
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Efficient method for opening and manipulating embedded OpenDocument Text File in Excel
I have an Excel Book for managing my customers information. It has a structure similar to this:
The last column (Details) has an embed object (OpenDocument Text), which I use to put arbitrary ...
- 33
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1
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891
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Restart Power Supply on USB Port
I am working on a remote computer from home. I use various components on it, such as - gyroscope for example. The components are connected via USB HUB, which is directly connected to the computer. ...
0
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1
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450
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Can I convert a list of embedded links in MS Word back to text at one time - there are 100 of them?
Problem Not all the embedded hyperlinks in my 2016 MS Word document work in the references section when converted to PDF. They are listed as titles with embedded links.
What I've done Well, apparently,...
- 141
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852
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Error Message with Pasted Hyperlink in MS Word 2010 Document, When Same Hyperlink Works Fine Pasted into Web Browser
Normally I don't have any problems with embedded or pasted hyperlinks working in MS Word 2010; however there is one which is giving me problems. The hyperlink is: https://creativemarket.com/account/...
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31
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Which JavaScript file holds .ts URLs
Some videos embedded in webpages segment the video into media files with a .ts extension. These files are loaded on-demand to reduce lag. You can see this then "inspecting" a webpage and ...
- 219
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28
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Addressing an IOT device not on my home network?
I have an IOT Wifi device (ESP8266) that I have communicating with my home desktop computer while they are on the same network. Its pretty straightforward, I use python on both ends to open up a ...
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2
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How to download Embedded PDF from this website with Pdfviewer.js
with free signing-in in this website, you can view a pdf really useful for med school.
https://www.accademiamedici.it/manuale-del-neoabilitato
I cannot download it because it's embedded and uses a ...
- 21
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145
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Where is the Windows 10 USB Serial Device Driver located in the device manager and how do I reconfigure it?
Basically I am trying to program my TINYFPGA. I was able to download the TINYFPGA program and associated libraries. However as soon as I tried to connect my TINYFPGA with my laptop that is where I am ...
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1
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137
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Persistent api keys for onedrive embedded excel sheets
I have a site for a golf tournament that is literally just a series of embedded excel worksheets. I used the embed tool built into the web interface for one drive (right click file -> embed -> ...
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4
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0
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773
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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 ...
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2
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1
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603
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Is it possible to embed a GIF in an RTF file?
I write a lot of tutorials using RTF as the format, but would like to be able to insert animated GIFs into them. I am wondering if this is possible with some code of any kind? I tried to drag and drop ...
- 2,491
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2
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450
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Is there any way to turn on telnet and/or ssh on an embedded Linux system using only ftp access?
Looking at my embedded Linux device. Connection refused to default ports with either ssh or telnet clinet, but not the ftp port. I have root pwd because the web front end of the device uses the true ...
- 31
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0
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351
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MP4 file embedded in Word doc won't play if doc is read-only
My user manual has several 30-second videos showing the bits tricky to describe in words. All worked well until I made all manuals Read Only to stop users making notes on the Word documents. However, ...
1
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2
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509
views
STLink V2 VCP doesn't show up in Windows
I'm trying to get myself situated to program comfortably with my STM32 Blue Pill and STLink V2 USB interface. However, I've run into an issue when trying to gain access to the VCP (Virtual COM Port) ...
- 652
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2k
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Does CPU Vertical Segment: Embedded mean that it can not be swapped?
Im interested with CPU replace in laptop, but something made me think a lot. I want to ask you simply if there is a socket defined, how can a processor be embedded? Does it work like it can be ...
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164
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No response to embedded system's ARP request after successful DHCP
I've been working to get UDP unicast packets implemented on an embedded system, using a Wiznet W5100S internet offload chip.
Their libraries enable the negotiation of DHCP, and I have successfully ...
- 111
0
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0
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389
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File loss due to unexpected reboot during write on f2fs filesystem
I am using F2FS in embedded linux (eMMC flash), and I noticed a lost of logs if device was unexpected rebooted. I have wrote a program that writes to a file in a loop and at one point causes a reboot ...
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330
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GSM PPP no internet connection
I've referred to 3-4 tutorials about setting up PPP connection using GSM modem. I have a linux OS - i'll be working with this on Mint and Debian.
https://www.rhydolabz.com/wiki/?p=16325#comment-...
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48
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Multitouch interaction compiled on Linux system with a on/board pc
I assume something is wrong in my setup but can't figure out what it is.
I'm on Intel core i7 board with Waveshare touch screen. As Operating system I tried Lubuntu, Ubuntu 18.04, Ubuntu 19.04 and ...
- 11
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1
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141
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How do I specify which driver is used for a device when more than one are applicable
I'm working on getting a more modern Linux working on a single board computer where the original company has gone under but the hardware is well supported by the open source community. I've made very ...
- 325
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158
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libnl takes time to see a disconnected client
I am working on an embedded device, with a custom OS (Yocto on iMX6).
The device use hostapd to create a WLAN.
I use libnl to list the connected WiFi clients, my code is based on iw to get the ...
- 131
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1
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1k
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How to modify vmlinuz without recompile
As title, I have two vmlinuz files on hang for embedded system.
And, I don't have the source and compiler for it, the developer of this embedded system also not work anymore.
The first vmlinuz ...
- 11
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1
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375
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Connecting two devices together with the same ethernet cable (some programming required?)
I'm looking to connect two devices together via ethernet, but I'm having trouble with the steps needed. The devices are one PC and one microcontroller. Both devices will have static IP's, the ...
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1
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3k
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I want to embed OneNote notebook into my website for interactive experience
So basicaly I want this eperience:
Example
But the thing is I don't have SharePoint included in my subscription and I want to know if there is any other way to achieve this.
Here's the procedure of ...
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90
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BOA hang - how to detect this and take action for this
I am having a SDK which has a boa webserver running in it to server HTTP requests.
It is seen that at times the BOA server hangs.
The boa server is not dead as it is shown in the device as running ...
1
vote
1
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559
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Issue in HFP/HSP bluetooth profile in Linux
I am attempting to implement hands-free telephony on my board, I successfully connected my android phone to the board via bluetooth module(QCA61X4A) in phone and media audio sharing mode.
I was able ...
- 121
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509
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STM32L053 I2C problems with LIS3DH sensor
I'm trying to recover the data from the LIS3DH sensor and I found this tutorial on YouTube.
In the tutorial the person uses the following to see if the sensor is ready for use:
if(...
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1
answer
13k
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PowerPoint Slideshow Error: Server application, source file, or item can't be found
When I double click charts embedded in my PowerPoint slideshow, the following error shows:
The server application, source file, or item can't be found, or returned an unknown error. You may need to ...
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1
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4k
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Windows 10 Disable Welcome Screen
Is there a way to disable the welcome screen in Windows 10?
I already found an option to disable the lockscreen and the boot screen, but the welcome screen with the username and account image still ...
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34
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3
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10k
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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 ...
- 371
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66
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PDF's, embedded files get stripped away
We download some PDF's from a webapp. This PDF's contains a XML file embedded. On some Windows client machines this embedded files get stripped away and we cannot find any program o specific process ...
- 471
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325
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U boot send failed: Error when trying to load a u boot image
I am trying to load a uboot image on a PCB. The board uses a pre-configured script in which it attempts to boot the board and, seeing that there is no boot image, it downloads the image over Ethernet ...
- 11
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2
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2k
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Non-Persistent Linux from HDD
I am developing a embedded product that will be running linux on hardware similar to a raspberry pi but with internal storage. I would like it so that the power can be cut to the machine and have a ...
- 511
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542
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Build my own kernel on BeagleBone Black
I am trying to put an operating system like FreeRTOS onto the on-board storage on my Beaglebone Black via an SD card so that whenever I take the SD card out and restart, it will boot my new OS. I have ...
3
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0
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254
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Disabling Windows 10 update forever, Embedded use
I have 50 computers with windows 10 pro
I disabled Windows Update Service
I connected them to internet once to activate the windows
These will be on 24/7 for an embedded project and never connected ...
user349427
0
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1
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2k
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Why embedded linux(yocto) can't use whole memory of rootfs partition?
I've build Linux image with yocto and deployed it on IMX6qpsabreauto board.
Filesystem was deployed on a second partition of SD Card formatted to ext4.
Everything seems to work fine except that I ...
- 123
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0
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479
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Do real time operating systems support paging? [closed]
Is it possible to run multiple processes, not threads, on a microcontroller using an RTOS?
If not, I can't see a reason for not always using a flat memory model? Without multiple processes, I can't ...
- 131
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45
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Find out wep key from embeded client
im kinda stuck here i have an embedded system i was given from a friend that connects to a wifi network to configure it unfortunately he cant remember the WEP key that was used to connect it. is there ...
