Recent questions tagged embedded

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embedded html powershell email compressing pic length

I have a powershell script that embedds (not attaches) a picture and sends an email. The picture has increased now ... looks like in the email. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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embedded linux - Are kernel headers depend on processor type, vendor etc?

I have downloaded the sources for a Linux kernel from kernel.org and created the header files by calling make ARCH ... files for a Linux kernel? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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embedded - GreenHills - small data area overflow

I'm hoping maybe someone has a quick answer for this but essentially when I turn on optimizations, I get the ... I'm using Integrity 5.10 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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embedded - C pointers vs direct member access for structs

Say I have a struct like the following ... typedef struct { int WheelCount; double MaxSpeed; } Vehicle ... a recently inherited embedded system. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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embedded - Low level qemu based debugging

I've to test some low level code on an ARM architecture. Typically experimentation is quite complicated on the real ... Do you have some advice? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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embedded - Can I implement the Factory Method pattern in C++ without using new?

I'm working in an embedded environment (Arduino/AVR ATMega328) and want to implement the Factory Method pattern ... pattern without using new? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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embedded - How to apply patches to a package in Buildroot?

I am working on an embedded system that uses buildroot as a tool for building the kernel and the root ... me how buildroot apply patches? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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embedded - How do I get Qt SDK configured properly with Yocto project?

I'm new to Yocto Project. The initial idea is to create a custom image based on core-image-full- ... : DISTRO_FEATURES_remove = "x11 wayland" See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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embedded - Strategy for feeding a watchdog in a multitask environment

Having moved some embedded code to FreeRTOS, I'm left with an interesting dilemma about the watchdog. The watchdog ... in situations like this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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embedded - Beagleboard bare metal programming

I just got my BeagleBoard-Xm and I'm wondering if there is any detailed step by step tutorials on how to ... appreciated! Best Regards Mr Gigu See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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embedded - Polling or Interrupt based method

When should one use polling method and when should one use interrupt based method ? Are there scenarios in which both can be used ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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embedded - Cross-compiling mono for proprietary ARM device

Currently at work, we are developing software for some arm-elf little endian devices. We are currently doing this in ... way i can compile mono? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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embedded - Initializing SD card in SPI issues

I've had a look at Stack Overflow question Initialization of a microSD card using an SPI interface and didn ... between MOSI/MISO transfers. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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432 views

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embedded - Understanding the Location Counter of GNU Linker Scripts

I'm working on a university project where I'm writing software for an Atmel SAM7S256 microcontroller from the ground ... can clear this up. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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embedded - How does Linux determine the order of module init calls?

I have a device with SPI flash storage I'd like to use an UBIFS filesystem on that flash device as my rootfs. ... root fs on unknown-block(0,0) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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450 views

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embedded - Linux cross-compilation for ARM architecture

I am interested in cross-compiling a Linux kernel for an ARM target on a x86 host. Are there some good practices ... have? Is it a good idea? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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460 views

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embedded - How can I unit test Arduino code?

I'd like to be able to unit test my Arduino code. Ideally, I would be able to run any tests without ... in conjunction with the Arduino IDE. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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embedded - How to make bare metal ARM programs and run them on QEMU?

I am trying to get this tutorial to work as intended without success (Something fails after the bl main ... to my expectations? Thanks Henrik See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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482 views

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embedded - Making large constants in C source more readable?

I'm working on some code for a microprocessor. It has a few large, critical constants. #define F_CPU 16000000UL In ... anything like this in C? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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embedded - STM32 SPI Slow Compute

I'm using a STM32F4 and its SPI to talk to a 74HC595 like in this tutorial. Difference is for starters I'm ... is done and set the latch there? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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embedded - @ sign in C variable declaration

I found this header file for PIC microcontrollers by the name of pic1250.h and I'm unable to get the hang of some ... I'm just a newbie at this. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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696 views

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embedded linux - Building kernel uImage using LOADADDR

While building the kernel I am giving LOADADDR as "0x80008000": make uImage LOADADDR=0x80008000 Can you please help ... length of the LOADADDR? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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564 views

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embedded resource - how to get list of files stored in a .qrc Qt Resorce file?

I'm very new to Qt..and in my program i have added some icon files in .qrc resource file. How can we ... our program the files stored in qrc ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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506 views

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embedded - Driving Beaglebone GPIO through /dev/mem

I'm trying to write a C program for blinking a LED on the Beaglebone. I know I can use the sysfs way...but ... a LED. Any idea about the reason? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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embedded - Using Haskell for sizable real-time systems: how (if?)?

I've been curious to understand if it is possible to apply the power of Haskell to embedded realtime world, and ... executing is under 0.5ms. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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882 views

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embedded linux - Install things on Pepper

How would I install things on Pepper, since I don't know what package manager it uses. I usually use apt ... off Gentoo which uses portage. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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555 views

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embedded - Fixed address variable in C

For embedded applications, it is often necessary to access fixed memory locations for peripheral registers. The standard way ... do_stuff(); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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embedded - Explaination of ARM (especifically mobile) Peripherals Addressing and Bus architecture?

I will first say that I'm not expert in the field and my question might contain misunderstanding, in which ... /drivers made me confused.. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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