Recent questions tagged arm

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arm - ARMSim- PC out of valid memory range

I tried executing a very basic addition program on ARMSim, however when I run it, I get PC out of valid ... stackoverflow.com/questions/65874921/armsim-pc-out-of-valid-memory-range...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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959 views

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arm - Real world DRAM write only application

I am eager to know if there is any real world application which includes following scenario: Megabytes of ... .com/questions/65890792/real-world-dram-write-only-application...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arm - undefined reference error when building program using shared library that link static library

I built AWS WebRTC library as static library and made some shared library using it. As I understand, the static ... -error-when-building-program-using-shared-library-that-link-s...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arm - GDBserver and OpenOCD not getting installed

I want to try gdbserver and openOCD on CLI so as to compile and debug STM32 MCU Firmwares via ... stackoverflow.com/questions/65912964/gdbserver-and-openocd-not-getting-installed...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arm - Keil uVision - Atmel SAM3U Read Unique Identifier

I've been trying to read the Unique Identifier (UID) from a Atmel SAM3U MCU, but it's proven ... .com/questions/65918049/keil-uvision-atmel-sam3u-read-unique-identifier...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arm - Linking static library compiled with ARMCLANG v6 with GNU gcc linker

I have small static library compiled with latest ARM compiler ARMCLANG v6. Now I have small application that uses ... -static-library-compiled-with-armclang-v6-with-gnu-gcc-linker...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arm - udev rules issue - Installing STMicroelectronics STlink Tools on ubuntu 20.04

I'm trying to get up and running with an STM32F722 Nucelo-144 (with "embedded ST-LINK/V2-1 debugger" ... udev-rules-issue-installing-stmicroelectronics-stlink-tools-on-ubuntu-20-04...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arm - How does linux (reboot) notifier list work?

I am testing the reboot notifier hook on Linux kernel 5.8 running on QEMU ARM64 with busybox rootfs. This ... .com/questions/65650339/how-does-linux-reboot-notifier-list-work...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arm - How to run a C program with no OS on the Raspberry Pi?

I'd like to experiment using the Raspberry Pi for some different low level embedded applications. The only problem is that, ... -run-a-c-program-with-no-os-on-the-raspberry-pi...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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992 views

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arm - How to run a C program with no OS on the Raspberry Pi?

I'd like to experiment using the Raspberry Pi for some different low level embedded applications. The only problem is that, ... -run-a-c-program-with-no-os-on-the-raspberry-pi...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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920 views

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arm - Windows Phone 7 and native C++/CLI

Microsoft recently released tools and documentation for its new Phone 7 platform, which to the dismay of those who have ... .com/questions/2455372/windows-phone-7-and-native-c-cli...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arm - Windows Phone 7 and native C++/CLI

Microsoft recently released tools and documentation for its new Phone 7 platform, which to the dismay of those who have ... .com/questions/2455372/windows-phone-7-and-native-c-cli...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arm - gst-play-1.0 cannot play video on display (fb0)

I am trying to launch a video file (webm). From gst-paly i can see the video playing on the terminal but i ... com/questions/66045635/gst-play-1-0-cannot-play-video-on-display-fb0...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arm - What is Vector Floating Point (VFP)?

Someone told me that VFP is a hardware accelerator for floating-point arithmetic used in ARM processors. But ... .com/questions/66047684/what-is-vector-floating-point-vfp...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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arm - STM32F207 bare metal SPI RXNE and TXE not working?

I need to communicate with an eeprom chip(25lc1024) via SPI. I can get the following code to work but have ... /questions/66060101/stm32f207-bare-metal-spi-rxne-and-txe-not-working...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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arm - 启用永不访问权限（PAN）时访问EL1中的共享内存(Accessing Shared memory in EL1 when Privilege Access Never (PAN) is Enabled)

在EL1中启用了ARM特权访问永不标记（PAN） 1的情况下，我想知道，如果EL1受到EL0的例外处理，则EL1将必须始终禁用PAN才能使用EL1和EL0之间创建的任何共享内存EL1和映射到EL0地址空间？ ask by Sridhar translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arm - 启用永不访问权限（PAN）时访问EL1中的共享内存(Accessing Shared memory in EL1 when Privilege Access Never (PAN) is Enabled)

在EL1中启用了ARM特权访问永不标记（PAN） 1的情况下，我想知道，如果EL1受到EL0的例外处理，则EL1将必须始终禁用PAN才能使用EL1和EL0之间创建的任何共享内存EL1和映射到EL0地址空间？ ask by Sridhar translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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980 views

1 answer

arm - How does works the same assembly program on different OS's and architectures?

This is a simple NASM 64bit linux assembly program: _exit: mov rax, 60 mov rdi, 0 syscall My computer is ... change when an assembly code with the different operating systems?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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arm - Stm Cube IDE ERROR : Comparison error for function

I am experimenting with the STM32f407vg board through the STMBUBEIDE program. First of all, I prepare my own library ... C/C++ Problem Error Screen: enter image description here...

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

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1.2k views

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arm - Question regarding assembly code error while cross compiling

I am trying to cross compile a FreeRTOS application for the an ARM Cortex A8 (beaglebone black) and i am getting errors ... stick with it. Any help will be appreciated, thank you....

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

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arm - neon shift instruction, can vector shift by vector?

I want to use neon instruction to speed up my program, I need to use the shift operation, but I only found Vector ... be a vector? int8x8_t vshr_n_s8 (int8x8_t __a, const int __b);...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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arm 汇编语言MOVS

这里的MOVS R1 R1 作用是影响标志位，作用是啥？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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arm 汇编语言MOVS

这里的MOVS R1 R1 作用是影响标志位，作用是啥？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

arm - Random Timeout TFTP using KSZ8863 and AT91RM9200

Newbie in the community, here. First of all, thanks for all the help in all these years i've been working ... the reason for the unreliability of my connection? Thanks, Loranzp....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

arm - Random Timeout TFTP using KSZ8863 and AT91RM9200

Newbie in the community, here. First of all, thanks for all the help in all these years i've been working ... the reason for the unreliability of my connection? Thanks, Loranzp....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.6k views

1 answer

arm template - Azure availability zone ARM A parameter syntax

I am attempting to add availability zone into my VM arm template. Majority of times I don't want the VM to be in a ... works: "zones": "", I appreciate your help in advance. Stu...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.4k views

1 answer

arm - How to accurately read a 64 bit register value using a method that can only read 32 bits at a time?

Came across this question during a past interview, but got no feedback. Since its a register, would I need to disable ... ); return 0; } Output: 64 bit register value: 0x1ffffffff...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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