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Questions tagged [embedded-linux]

Embedded Linux stands for the use of Linux in embedded computer systems such as smartphones.

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Embedded Linux stands for the use of in embedded computer systems such as smartphones, personal digital assistants (), media players, set-top boxes, and other consumer electronics devices, industrial automation, navigation equipment and medical instruments.

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How AT commands can be used to know the TCP buffer status?

Atmega328p interfaced with ESP8266, vibration sensor. atmega reads vibration data from the sensor at a frequency of 10khz. Each value is sent over UDP using esp8266 UART-Wi-Fi passthrough mode to a raspberry pi sitting at a distance. The sample…
vishnu m c
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Unable to ping other devices in the network through ethernet port on a custom board

I am on a embedded development platform and trying to bring up the ethernet and do a ping test. As of now, I have the ethernet up after the linux boot, but I am unable to ping other systems. My thinking suggests that the phy is not configured…
user2532296
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Understanding buff/cache and tmpfs relationship on a read only filesystem with no swap

We have a really strange bug where a Yocto operating system running on a Raspberry Pi will 'lock up' because of disk IO wait. Scenario: operating system runs read only and has no swap there is a tmpfs filesystem for stuff the OS needs to write to…
jakew009
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OpenWRT overlay expansion via extroot

I am trying to get a router to expand it's overlay area so that I can install some tools on it. The router is running OpenWRT 19.07.7, and I tried following these…
Nyxeria
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systemd-networkd: how to elegantly switch between creating a wireless access point and connecting to a wifi network

I'm working on a headless IoT device that creates its own access point so that the user can access its web UI and do necessary configuration. The system uses networkd but I'm not very attached to it and may change to NetworkManager if it's better…
Zbigh1
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Running tcpdump starts ssh flood

I have runtime Linux running in a PLC. My development machine is running Ubuntu 14.04. The PLC and the development machine are connected through a five port switch. I ssh to PLC from my development machine to transfer executable of a networking…
awatan
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How to create a readonly root linux: Can be mounted as writeable for persistent changes?

I'd like a read only file system that runs almost entirely in RAM but the compact flash or hardrive can be mounted and made writeable to make persistent changes. How do I do this on Linux? I've looked at several tutorials but none really explain how…
Mr Anderson
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small and cheap embedded system

for a home automation project I'm search for a small and cheap computer which is capable of running a small webservice. It should have the following features: Linux enabled (Debian, OpenWRT, ...) small form factor (ca. 4"x4" resp. 10cm x 10cm or…
Knut
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