I found two statements in cortex m3 guide(red book)

1. Cortex m3 supports both Little as well as big endianness.

2. After reset endianness cannot be changed dynamically.

So indirectly it is telling change endianness settings in reset handler , is it so…

Hello everyone,

I am trying to set up the MPU in my LPC1769 Xpresso board. The memory map of LPC1769 is as given below:

512kB FLASH           @ 0x0000 0000 – 0x0007 FFFF
32kB on-chip SRAM @ 0x1000 0000 – 0x1000 7FFFF

I am only configuring 2 regions…

dear All,

i started an arm cortex m3 project using eclipse+gnu.

i want to size boundary of the structure alignment.

where and how i can do it?

thanks and regards,

Ras

Hello
First of all a successful 2017 for all of us.

I'm looking for examples of C algorithms for applying the concept of wavelets to identify ECG patterns in data collected with a Cortex-M4, preprocessed and later sent to a Cortex-A for graphical re-ordering…

Hi to you all, I'm working on a software involving an LPC4370 (Cortex M4 + 2*M0) and LPCXpresso IDE. I'd like to know if someone knows a good version tracking tool for the platform.
My key requisites are:

• free/cheap for smal teams
• integration…

i am looking for a ethernet connection for my pump. which i am using a stm32f discovery board. for this i need a mac address. how can i get an mac address and how can i interface with the pump and control with my pc. can you all please guide me.

Hi,

    I am doing my pump project using stm32f407vg controller. I want to control my device through pc. where i have developed a .NET software for various parameters. through that i want to control the device through ethernet. how i can i control the device…

hi all,

   i am using the stm32f4 discovery board to drive my stepper motor in the rpm of between 0.001 to 500 RPM. for this i am using pwm. my clock frequency is 32MHZ and prescale for ABP1 is divided by 2 of my clock frequency. in this i cant make my…

Hello,

I am looking for a development board and software development kit with ARMv8M processors Cortex-M23.

I need to prototype trusted applications in c/c++ programming language for my research work.

 I am expecting availability of development libraries along…

Hi, everyone!

I'm a beginner of  cortex-M4 developing which the student of master degree.

Actually, I implement the algorithm model on cortex-M4 platform now, including calculation of eigenvalue and eigenvector.

I have found the LAPACK library which…

Hello , 

I am new to ARM cortex M processors and while doing some coding on my board using KEIL  i found that

at location 0x0000_0000 my debugger shows the value "0x2000_0660" . Thats the value of the MSP loaded. 

but i really dont understand how…

Hi there,

I am the author of the open source Orbuculum tools for SWO data parsing on CORTEX-M targets. I am currently expanding those tools by implementing 1, 2 & 4-bit parallel TRACEDATA capture from CORTEX-M3/M4 CPUs using a small FPGA connected to…

I have made a custom board for STM32L072CZ by ST. I am flashing it using STM32Cube Programmer via UART. When I flash it, I get the application running(say blinking LED) for the first time and as soon as I reset it, the application stops running. I checked…

Hi,

I've created a custom firmware update process on a TI TM4c1294NCPDT (Arm Cortex-m4f) and have divided the flash into 2 partitions. I'd like to be able to build one image that will work in either of the partitions but so far haven't figured out how…

Which Linux version used for ARM cortex M4 ?? and how to install this linux version on TDA3x from Texas instruments ??

Hello,

I need to know the exact number of the clock cycles per each instruction in terms of the system clock frequency especially the "LDR" instruction

Here is the needed instruction: "LDR r3,[r1]" 

Note that r1 is an address in the…

Hi I'm learning cortex m4 debug feature, 

I'm using stm32f407 discovery with openocd in ubuntu

I'm trying to understad breakpoint feature,

I can set breakpoint address in openocd and chip will stop when pc run to that address

like main function…

I want to test all my exception handlers; but have so far failed miserably at forcing a usage exception.

I tried disabling FPU and running a FPU instruction, but this resulted in HARD Fault rather than USAGE Fault.

Anyone know a good way to foce such…

Hi friends, I am using STM32CubeMX and trying to start software timer but I couldn't start.These are my codes.Do you have any simple example or How can I manage it?

#include "main.h"
#include "stm32f1xx_hal.h"
#include "cmsis_os…

i am using LPC11C24FBD48 Controller and i initialized the Stick timer but when i run the code it is going to Hard fault handler.

__STATIC_INLINE uint32_t SysTick_Config(uint32_t ticks)
{
if (ticks > SysTick_LOAD_RELOAD_Msk) return (1); /* Reload value…

Hi everyone, 

Apologies for asking a very similar question to those that are out there already, but this is my last hope as I have scoured Atmel and arm forums for a solution that works for me, but not found any yet,

I am trying to write a bootloader for…

Hello, I am looking for USB shield to connect with arm cortex m3 to communicate through the wireless receiver that receives the signal through wireless Activity detection transmitter store.ncd.io/.../ which detects the motion near the room entrance which…

Good afternoon, dear collegs! 

I'v started to connect STM32H7 (Cortex M7) MCU with exteranal Nor-Flash memory by use FMC. I'm alittle confused by write command. Without DSB() command it refuses to work correct. Program loads from embedded Flash (7 waitstaits…