Questions tagged [linux]

Linux is an UNIX like open source operating system written by Linus Torvalds. There is a spin-off of Linux OS for EE called "Fedora Electronics Lab". If your Linux question isn't electronics-related, ask on one of the other Stack Exchange sites. Stack Overflow, Unix & Linux or Super User are likely what you're looking for.

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399 views

Enabling uClinux to run on Altera DE2-115?

I'm trying to learn Qsys and Quartus II to define a system that can run linux according to this document: http://uuoc.org/uClinux_nios2_custom_hardware.pdf But I'm running into problem as the ...
2
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1answer
744 views

Virtual display for simple GPU development

Related: Where to start when considering making a GPU? I'm a pretty strong programmer, but I'm very new to hardware design, so apologies if I use strange terminology. My long-term goal is to write a ...
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0answers
1k views

Raspberry Pi with SMBus SmartBattery

I'm trying to interface a Raspberry Pi with the mini-box OpenUPS. It claims to implement the Smart Battery SMBus specifications. I can read data from the device using the i2c_smbus_read_word_data() ...
2
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1answer
3k views

AVR-GCC: Ports Undeclared when compiling

My Setup I'm running Ubuntu 12.10, and I want to be able to use gcc and avrdude to compile and program my ATmega328. I followed this Ladyada tutorial: Ladyada AVR Tutorial Everything installed ...
5
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1answer
148 views

Storage in embedded linux

I am basically from a background of small microcontrollers(arm7,cortex-m series). As I started working with a cortex a8 board(beagleboard xm), I always wonder how to store applications in flash/ram ...
2
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3answers
829 views

How can I figure out an unknown UART's speed?

So I have a piece of hardware I'm reverse engineering. I believe I've found a UART on the board. I have an FPGA connected to it that just does: ...
11
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1answer
1k views

SPI transaction timeout linux device driver

I am stuck for last 3 days at a point. I am working on eink device driver with msm8960 qualcomm chipset. Scenario: In file: kernel/arch/arm/mach-msm/devices-8960....
4
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3answers
4k views

ARM Linux and UBoot - Can I make a read-only MTD writable?

I have several embedded Linux devices installed at customer sites. We have an updated Linux kernel we are prepared to deploy to these devices. The problem is that on these devices, the U-Boot ...
0
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2answers
1k views

USB Lamp, controlled by linux driver

I want to build a simple USB lamp (maybe colored LED lamp) which will be controlled by PC. So, actually, i want to get practice in linux kernel modules development, but i need to get appropriate ...
0
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0answers
45 views

avrdude - Set programmer's path [duplicate]

I am trying to upload a hex file to my ATtiny85 with my AVR ISP MKII programmer. But avrdude says it cannot find my programmer. How can I find where my (USB) ...
3
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1answer
3k views

Error while uploading hex file to AVR uC

I am trying to upload a hex file to an ATtiny85 from Ubuntu by running these commands: ...
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2answers
7k views

How to use USBee AX logic analyzer under Linux?

I've got clone of USBee AX logic analyzer, to play with one and see if I need a device of such type at all. Unfortunately, I haven't found any Linux software that supports one. I have tried Sigrok, ...
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1answer
727 views

Is there a non-gas assembler for AVR for Linux? [closed]

I need to do an entire project in mostly-time critical code. Using assembly seems like a good idea. I've seen quite a few example assembly files and such which have an "Intel" feel to them. I know ...
4
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2answers
1k views

Has anyone seen power cycle corruption in industrial SD cards?

I am using a micro SD card in a new embedded Linux system (choice of SD was not mine, was made by the hardware guys). I have seen a problem before where power cycling of a system without doing a ...
3
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2answers
9k views

Can we run Quartus II on Ubuntu?

I can compile digital components and download them to the boards DE2 and DE2-115 I got. I do it from Windows 7 but I want to enable this on ubuntu while the files from Altera are for Red Hat Linux. I'...
23
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3answers
31k views

AVR - How to program an AVR chip in Linux

I recently got an AVRISmkII AVR programmer, and I have an ATtiny85 and ATmega328. I was wondering how I could program these chips (with the programmer) but when I try getting Atmel Studio 6 it is only ...
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1answer
158 views

Stuck running CodeSourcery under Ubuntu [closed]

I installed CodeSourcery on Ubuntu Linux and am a little bit stuck: PATH is OK but the program does not appear on the dashboard or software centre. Maybe it is something within Ubuntu I should change ...
8
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2answers
11k views

Best Linux filesystem to use on MMC memory chip?

I have a new embedded Linux project coming up. The hardware team has chosen an MMC Flash chip (part # MTFC64GJVDN-4M) for the system's non volatile memory; data sheet at http://www.micron.com/parts/...
2
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0answers
691 views

Send signal to USB with linux [closed]

I have a digital caliper/gauge: it works with FTDI interface and digimatic (or very similar) protocol. It is connected via usb port. I can connect it correctly, and I can read it with programs like ...
0
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1answer
219 views

What Happens when I use all of my CPU resources? [closed]

I've been trying to convert some video with ffmpeg and realized that this is taking ~97% of my cpu when I check with top. What ...
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1answer
845 views

Looking for easy USB Sound Card Chipset [closed]

Does anyone recommend a chipset for a USB Sound Card (w/input), with readily available drivers for both linux and windows. I am making a phone line tap to record dial modem calls in the field, for ...
-2
votes
2answers
771 views

Small device that runs Linux [closed]

I want to make a small device that boots Linux off of an SD card for ARM or x86. I am trying to build this from scratch. I downloaded Linux (kernel.org) and compiled it on Ubuntu. What kind of SD ...
3
votes
2answers
4k views

Use Raspberry Pi Gpio Header as Memory Mapped Interface

Raspberry Pi is really an interesting device for its support of so many features in such a small and simple formfactor. If the GPIO expansion header can be accessed in the same way as a normal memory-...
6
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1answer
5k views

TI Launchpad MSP430 on Serial in Linux

The MSP-EXP430G2 LaunchPad Experimenter Board User's Guide (Rev. C) in chapter 3.2 states: The LaunchPad includes a pre-programmed MSP430G2553 device [...] Press button P1.3 to switch the ...
19
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4answers
61k views

SPICE Simulator at Linux

What is the better choice to get opensource SPICE simulator on Linux? I am fan of Proteus (Windows) is there any alternative like it?
0
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2answers
3k views

LED control via USB to Parallel Port in Linux

I have USB to 25pin Logilink cable. I connect it with computer with Linux and get a port in /dev/usb/lp0. When I connect LED with pin 1 and 25 as +/- of LED it lights. Now I move + pin of LED to pin2 (...
1
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2answers
2k views

Reading from SPI flash more than 35 bytes causes driver timeout and results to corrupt

I have connected SPI flash to my linux board (imx 233 based) running in it's SPI bus. I have configured kernel, and SPI bus and flash chip to it. The flash is currently on a breadboard. Before ...
5
votes
1answer
694 views

How can I access the MCP3008 ADC chip with linux spidev?

There is quite a bit of bit-banging sources to work with this 10-bit resolution chip, but I'd like to know if this kind of chips are natively supported by Linux. Primarily I'd like this to be in C, ...
4
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1answer
201 views

Features to include on a new embedded Linux board to make development and debug easier?

At my work we're planning on developing a new ARM based embedded Linux board. I want to give the hardware guys some guidance on features they could add that would make the software development easier. ...
2
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2answers
548 views

creating an electronic scale with Linux

I have no skills with electronics, but I can code. Which kind of hardware I can use to create an electronic scale that runs with Linux? Will Arduino fit this task? Where can I find the sensor to keep ...
3
votes
1answer
1k views

Compile C for PIC16F88 with sdcc

I'm trying to program my school learning board with PIC16F88 on Ubuntu. I installed sdcc and picpgm. PIC16F88 already has bootloader so I intended to compile C code in to HEX with sdcc and then ...
3
votes
1answer
1k views

USB I2C adapter and Cognimem on Mac OS X?

I am a newbie when it comes to electronics, but because of some things I'm being exposed to at work, I've grown a bit of an interest. I was given a Cognimem CM1K chip on a board, which is essentially ...
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2answers
1k views

FPGA or Microprocessor for Computer Vision based Robot for Indoor Navigation [closed]

I'm building an Indoor navigation robot which can be used in offices and factories especially in closed spaces with good lighting. I've already found out the algorithm i need to use for Indoor ...
2
votes
1answer
1k views

Processing RXTX issue [closed]

I am new to Processing and attempting to write code to communicate with my Arduino - on a linux platform. When I run the following code: println(Serial.list()); ...
2
votes
3answers
577 views

Linux PCB with support for GPU accelerated X Windows

I'm looking for a Linux PCB (ARM or Intel) with a GPU that can run debian linux and use the GPU in X Windows. Preferably with an HDMI output or at least a DVI output. Something that is available on ...
7
votes
3answers
6k views

What development boards have good RTOS support?

I'm looking for a relatively low-cost (<$50 would be ideal) development board with real support for an RTOS. It doesn't matter if the RTOS is manufacturer-supported or a separate project, but I'd ...
3
votes
2answers
712 views

Would anyone know how to use the InterSense Navchip sensor with Linux?

I've recently begun using the InterSense Navchip for some experiments related to INS(Inertial navigation systems). Would anyone know how to make this work with Linux? They provide a sample tool for ...
2
votes
2answers
833 views

Talking to the Cortex M3 (Stellaris EKS-LM3S1968) under linux

I've searched around quite a lot, but haven't found an easy(ish) way to load programs onto the Cortex M3 using Linux. I have tried using the summon-arm-toolchain https://github.com/esden/summon-arm-...
-2
votes
1answer
1k views

How can I create a bootable SD card with linux kernel?

I just order an ARM Cortex A8 development board with preinstalled Android, but instead of the preinstalled OS I would like to use Linux, so I compiled the kernel with success, but I don't know how can ...
0
votes
2answers
2k views

Tiny ARM Development Board? [closed]

I need a very small ARM based development board capable of running Linux (and Android, if possible, via SD card). The board should be not more than 25mm in terms of breadth. I found Raspberry Pi Model ...
0
votes
2answers
3k views

What does linux need to be on a microcontroller?

I am going to put linux on a microcontroller, attach an LED to the microcontroller, a battery and hope that the LED blinks. But before I do that I need to put Linux on a microcontroller. And to put ...
6
votes
2answers
2k views

How do I get started with uCLinux?

Right now I have ported an application from LPC2478 to Cortex M3 (LPC1788) and things are working fine at 120MHz. I am thinking of porting uCLinux to my LPC1788 custom board. The board consists ...
6
votes
1answer
4k views

Driving a 12V door strike from 3V3 BeagleBone?

I'm trying to control a 12V electronic door strike lock from my 3V3 BeagleBone. Here's a diagram of my circuit: My circuit probably needs a NPN transisor of some sort, but I'm not sure which one ...
5
votes
1answer
158 views

How JTAG affects system load?

Although the question is general, for discussion purpose let us assume TI's OMAP platform and Linux. If I connect a JTAG device to debug it (or a JTAG tool runs on OMAP platform) , how the system ...
2
votes
1answer
3k views

Need a cheap embedded linux board that has WiFi access point and USB2.0 [closed]

I need a small embedded Linux board that has the following: On board WiFi access point USB 2.0 high-speed HOST. Under $100, preferably under $70 or around $50 Basically I need to send real-time ...
11
votes
3answers
14k views

How do I debug a Arduino Uno with gdb on a Linux pc?

How do I debug (source code single step) a Arduino Uno with gdb on a Linux pc? Please note that I do not like to use AVR Studio in wine or VirtualBox. Question 1: Physical connection How and what do ...
6
votes
5answers
1k views

Cheap PIC programmer, must be Linux compatible

I'm comfortable with working on Arduino based projects, but I'm looking to start experimenting with PIC programming. How would I go about building my own pic programmer? I thought there must be a ...
30
votes
8answers
34k views

How do I develop for STM32 discovery on Linux? [closed]

I have an STM32 discovery board and would like to be able to program it on Linux. What is the easiest way to do this?
1
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5answers
2k views

Software alert when doorbell rings. Doable?

I am looking for a way to send alerts to my Linux laptop each time the doorbell rings to avoid those unpleasant times when a visitor ends up waiting minutes outside my door when I am alone and have ...
1
vote
2answers
1k views

Running MMU less Linux on Cortex-R4

I'm using ARM Cortex-R4 for my system. I'm little bit confused about which linux should I go for - Standard Linux Kernel with MMU disabled or uCLinux. On an eval board, I have run the standard kernel ...