• If an RTOS is able to run on one particular implementation of a CPU core, does it necessarily support other implementations of that core?

    Hi Matt- If an RTOS is able to run on one particular implementation of a CPU core, such as a Cortex-M3, does it necessarily support other implementations of that core?

  • IDE Recommendation

    Not sure if this is the right place for this or not, so excuse me if I have not "chosen wisely."

    I'm a hobbyist working on a project that I MAY productize and try to sell. I have begun with the mbed platform of embedded boards. However I have…

  • HardFault on UART initialize

    Hi all!

    I'm facing a problem with my UART on a STM32F207IG under CMSIS.

    When I try to initialize the UART the processor disappears in the HardFault_Handler.

    I think the problem is somehow related to the clock settings which I left untouched until now…

  • ARM7TDMI or Cortex-M3 board - which should I consider?

    If I have two ARM7TDMI core board and Cortex M3 core board, and I need to choose one of them to use.

    What should I consider the different between them and why?

  • how to configure a I2C in MCB1700 with LPC1758?

    how to configure a I2C in MCB1700 with LPC1758?

    I have a MCB1700 board with LPC1758, I am trying to use the I2C on it as a master to run a ultrasonic sensor srf08.

    How should I configure the I2C setting on the LPC1758?

  • Debugging a Cortex-M0 Hard Fault

  • Recommended book on ARM

    HI,

    i'm an ICT professional (so also with an IT background) and very much interested in embedded development (IoT solutions). Until now I mainly did embedded development (mainly ARM m3, m4 microprocessors based development boards: eg Spark Core, TI CC3200…

  • May I know where does stack memory begin in a Cortex M3's memory?

    For example, is it at the beginning of RAM, user or silicon vendor defined?

    I'd like to know such that I can identify the stack boundaries in memory and therefore know if I've caused a stack overflow in my code.

    My device is an LPC1778, and Im using…

  • Can the Cortex-M3 stream videos?

    I'm (trying to) build a device that can receive and play/stream videos wirelessly to an embedded system. I wanted to know what would be the best course to take? If the ARM Cortex-M3 is a viable option for this, do I need a separate video controller…

  • will cortex m3/m4 enter a lockup mode if a serious fault happened while FAULTMASK is set

    Greetings,,

    what happens if FAULTMASK is set in cortex-m3/m4 and one or more serious fault happened like bus fault, MPU violation, invalid instruction, stack corruption.. etc will the processor enter a lockup? if not what would be the status of the processor…

  • Measurement of square wave frequency using Arduino due

    Dear Friends

                       I am very new to Embedded World especially Arduino and ARM micro controllers. I need to  measure square wave freq upto 8 Mhz using arduino. Can any one guide me in this regard.... Now I am able to measure upto 110 KHz. Here…

    • freq_result_2316.txt.zip

  • can i use QNX Neutrino RTOS with cortex-m3

    I have seen that lot of arm boards are having qnx rtos but all were like cortex-a or cortex-r ,but the soc i have is having cortex-m3 ,so before investing lot of time in this os ,i want to be sure whether at the end it will work with cortex-m3 or not…

  • I have  to do project on MMC card interfacing and Audio Player on ARM CORTEX M3 ..which hardware and software should I use for it?

    I have  to do project on MMC card interfacing and Audio Player on ARM CORTEX M3 ..which hardware and software should I use for it?

    how should i start the project...steps to be followed...I am new to this field ...pls help me.

  • Cheap alternative of J-Link Segger

    I am looking for some alternative of J-Link Segger for Cortex-M3/4 , the cheapest one is J-Link Base as J-Link Lite can be used only with evaluation boards, 

    Any suggestion ?

    I am using GNU arm gcc as toolchain and debugger and Eclipse as IDE, I…

  • How to configure Cortex M3 endianness?

    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…

  • Arm cortex M3(LPC1769) MPU settings

    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…

  • to size boundary of the structure alignment

    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

  • TRACEDATA Capture issues

    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…

  • Connection and interface between Cortex M3 and Wireless Activity detection transmitter

    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…

  • FFT algorithm

    Hello everyone. I write FFT, it's ran! But it run very slow speed, I try on STM32F103C8T6 72MHz and used timer to measure time, the result about 360ms and I can't run another program. Somebody help me please! Thank all!

    My code here: the DFT http…

  • Need Help regarding IOT

    Hi Team,

    i am completely new to this world, but still i would like to build a solution based on IOT where i can simply sense some object and reflect it status on internet application.

    can somebody please guide me with some documentation on how to get started…

  • Send Analog signals through ARM Cortex M3

    Hey I have some digital inputs which I wanted to convert it into analog signals and send it to Industrial Valve to control the flow of water but because of not familiar with digital to analog conversion I am finding out the best way which help me to convert…