Hello,

I would like to know if a Trustzone application can be interrupt driven instead of being triggered by the non-secured world (scm).

Thanks,

Fabrice.

Hi Experts,

Which of the open source hypervisor like Qemu,Xen,etc is easy to start and experiment the code.

Is there anything which ARM supports in specific where it is more handy on ARM processors.

Also am new bee to this hypervisor concepts so bit curious…

linux requires EL1,however uboot is in EL3 mode.linux is halted.

I am studying System call in the linux. I know that is using SVC exception handler.

the related codes are as follow

====================exception handler codes===================================

ENTRY(vector_swi)

sub sp, sp, #S_FRAME_SIZE

stmia sp, {r0 - r12…

Hello,

I'm using the FriendlyARM Tiny210 kit (Samsung S5PV210 ARM Cortex-A8 processor).We have loaded the OS Linux to our kit.

I have tested simple programs like led and buttons...Now, I have to test the UART program between the tiny210 and my PC, but…

I would like to use iMX6 in asymmetric mode (Windows EC7 + Linux). Is that anyhow possible? Marco

Which ARM Microcontrollers are embedded in current SD Cards? The Motorola 8051 tends to get mentioned in this connection, with occasional, vague references to ARM. So, which specific ARM technologies are used for this purpose, and what kind of embedded…

These days I'm using Xilinx SoC to design a software, which shares memory between Cortex-A cores and FPGA.

I've tried reserve memory in Linux and mmap() /dev/mem. The problem is if I use O_SYNC, it very slow since

my software access every byte computed…

Dear ARM Forum,

I want to understand more about UEFI for ARM-V8 based Embedded systems.

1. Is UEFI on ARM-V8 Linux platform is good or bad ? why ?

2. How UEFI is better than conventional Embedded Booting system?
     First-stage-Boot-loader --> U-Boot -…

In my opinion Linux OS is a best choice for newbies to learn embedded system. As It is an open source system,which could help learners gradually master this embedded operation system through many times researches and tests. At the same time, it also…

Hello,

I'm facing an issue with some of the linux kernel code. I'm trying to use the CPU suspend fonction (located in arch/arm/kernel/sleep.s) of the linux next kernel

The code is the following:

    /*

     * Save CPU state for a suspend…

the booting of seconday cpu is initiated by the primary core. and some work is completed on the primary cpu and some is completed on the secondary cpu to complete the hotplug operation for cpu_up.

I am trying to find the exact instruction that is executed…

hi all,

I'm used to use microchip controllers (Professional software engineer), but because I need higher calculation speed, I have to move to arm processors.

For that reason I'd like to start with a starter kit.

I'd like to experiment with Ethernet…

I have an Altera Cyclone V SoC DevKit that came with the ARM DS-5 tools.  I have been running the Hello World C linux app examples that came with the tools.  I want to run a similar C++ linux app example, so I copied the C example project (as I have several…

Please provide generic concepts about porting Linux to ARM.