• CMSIS DSP stage_rfft_f32 function

    lukasz139
    lukasz139

    Hi,

    I am exploring the CMSIS DSP library. After playing for a while I have 2 questions:

    -in case I want to evaluate DFT over bigger data window than 4096 I would need to provide Twiddle Coefficient array for particular size and make aplit the data set…

    • over 2 years ago
    • Software Tools
    • Keil forum
  • ARM M4 to BLUEGIGA module, Multithreading, and Data Buffering

    Anonymowzz
    Anonymowzz

    Hello, I am looking for information about programming an ARM M4 firmware to basically broadcast serial information to a bluegiga WF121-A wifi module. My device will receive 2 serial inputs and I want the serial input packets to be sniffed and broadcasted…

    • over 2 years ago
    • Software Tools
    • Keil forum
  • Cycle accurate simulation/emulation for Cortex - M4 Processor based board

    Fahad
    Fahad

    Hi all,

    I am  a master student in germany and doing my thesis currently. I wanted to measure CPU cycles using emulation/simulation for some code that is running on a cortex m4F processor based board. I had QEMU in mind at initial but it turns out it doesn…

    • over 2 years ago
    • Software Tools
    • Arm Development Studio forum
  • About tool selection

    Alvin03
    Alvin03

    I have to port a solution i am working on for Cortex-M4. I need to build,profile and later optimize.
    Can somebody please suggest which all tool will be helpful. 

    • Answered
    • over 2 years ago
    • Software Tools
    • Keil forum
  • How to detect interrupt enabled flag in Cortex-M4 processor?

    Tilen
    Tilen

    Hello,

    I wanna know if global interrupts are enabled or not.

    In ARM compiler,__disable_irq() function returns 0 if interrupts were disabled or not, but on GCC based compiler, this function is declared as void.

    Which register should I take a look for bit…

    • Answered
    • over 5 years ago
    • Software Tools
    • Arm Compilers forum
  • Does anyone have any advice for learning how to program Cortex-M processors without an IDE?

    Jonathan Hill
    Jonathan Hill

    I'm interested in learning about what's under the hood, or what's hidden from you by an IDE, by which I mean, compiler, linker, makefiles - that type of thing. I have a few specific, if potentially misguided questions about what I think I should be doing…

    • over 5 years ago
    • Software Tools
    • Arm Development Studio forum
  • L6221E execution regions overlap error

    Vickey Khan
    Vickey Khan

    I am working on Keil uVision4 and just started learning ARM Cortex-M3 assembly. Executing a program but have this error during the build process:


    .\mycode1.axf: Error: L6221E: Execution region ER_RO with Execution range [0x00000000,0x00000038) overlaps…

    • my_code.txt.zip
    • over 5 years ago
    • Software Tools
    • Arm Development Studio forum
  • HELP with microcontroller MK10DN512ZVLL10

    niki
    niki

    Hello everyone, I'm an Italian student struggling with the first project on a microcontroller MK10DN512ZVLL10. Someone can support?

    • over 5 years ago
    • Software Tools
    • Arm Development Studio forum
  • FVP_MPS: Write Byte Not Working for The 7-Segmenet Display?

    Meng-Yuan Huang
    Meng-Yuan Huang

    My simulation environment is: uVision 5.14 + Fast Models 9.2

    The fixed virtual platform is this one:

    C:\FastModelsPortfolio_9.2\examples\FVP_MPS\Build_Cortex-M4\FVP_MPS_Cortex-M4.sgproj

    I want to write a program to control the 7-segmenet displays. By Fast…

    • Answered
    • over 5 years ago
    • Software Tools
    • Arm Development Studio forum
  • ENTRY directive for assembly code

    Gopal Amlekar
    Gopal Amlekar

    Hi,

    I am trying to understand the startup code and assembly language (more for learning and not for a specific project) for ARM Cortex M4.

    I made a project in KEIL with just one assembly file and added a stack declaration and a vector table there. It was…

    • Answered
    • over 5 years ago
    • Software Tools
    • Arm Compilers forum
  • How can I use SVC interrupts from C++?

    Anthony Wieser
    Anthony Wieser

    I'm using the gcc toolset, and had hoped to be able use this functionality, however all of the documentation seems to state superseded or suspended.

    ARM Information Center

    I'm trying to target an STM32F4 processor.

    Any pointers to how to do this…

    • over 6 years ago
    • Software Tools
    • Arm Development Studio forum
  • Getting Started ARM STM32F4 CMSIS project

    PA3040
    PA3040

    Dear All,

    Can I have the step by step, how to create a ( CMSIS library ) project using uVision 4 Keil IDE
    My Project board is STM32F407 vg discovery board

    Actually I need following  instructions acceptable project

    GPIO_InitTypeDef GPIO_InitStruct;

    Please…

    • over 6 years ago
    • Software Tools
    • Arm Development Studio forum
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