• SIP stack for microcontroller

    Marc Döbber
    Marc Döbber

    I want to build a VoIP Phone with STM32F4. Does anybody know, if there is a small SIP-Stack that can easily used with microcontroller.

    Thanks Marc

    • Answered
    • over 6 years ago
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  • fformat on SD card

    Tom P
    Tom P

    Hi,

    I'm having some trouble with the fformat function from the FlashFS library...I think.

    I have >50 Qty of a PCBA design, each running the same code. The PCBA has an M3 processor and it interfaces to an SD card using the parallel interface.…

    • over 6 years ago
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  • Warning for Periodic window update of system viewer windows

    nice day
    nice day

    This continues my other post (RXNE/IDLE)... somehow I could not post any longer message (40 words...) in this older post.

    • over 6 years ago
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  • Embest: EDM1070XX & ULINK 2 No Reset after programming

    Roger Henderson
    Roger Henderson

    After programming EDM1070XX (LPC1857) with ULINK2 I have to power cycle the board to get my code to run. I have tried various options in the Target Driver Setup without success.

    My ULINK2 works fine with my LPC2478 boards.

    I can control the board…

    • over 6 years ago
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  • LPC2468 USB-MSD ChanFs FAT32

    Nagarajan V
    Nagarajan V

    Dear All

    i have a problem with modified version of USB hostlite with Mr Chans FS SFAT32.

    DRESULT disk_ioctl(BYTE drv, /* Physical drive number (0..) */
    BYTE ctrl, /* Control code */
    void *buff /* Buffer to send/receive control data */
    )
    {
          …

    • over 6 years ago
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  • global variable space, IRAM

    dodge55
    dodge55

    Every so often I chase memory overflows (IRAM or variable space) and I never remember where the settings are that need to be changed.

    I added a global structure array that caused my code not to even run. When I reduced the size of the new array, the…

    • over 6 years ago
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  • rebuild application in simulator

    Sander Wiggrs
    Sander Wiggrs

    Hello,

    I'm using the simulator to debug my application. This works fine except for one thing.
    When I modify the code in the simulator and want to rebuild the application I need to:
    - stop simulator
    - rebuild application
    - start simulator.

    Is…

    • over 6 years ago
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  • include sub folder

    Sander Wiggrs
    Sander Wiggrs

    Hello,

    My code is located in multiple folders. All of these folder have multiple subfolders.
    When I setup my include paths I have to specify all subfolders separately.

    Is there some sort of keyword to tell the compiler to also include all subfolders…

    • over 6 years ago
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  • SPI driver for STM32F4xx

    Dejan Durdenic
    Dejan Durdenic

    For those who might want to use it - middleware SPI driver for STM32F4xx using DMA transfer is very buggy:

    - DMA stream numbers for SPI2 are completely wrong. Instead of streams 3 and 4, it uses streams 2 and 3

    Following errors apply both to SPI_SendData…

    • over 6 years ago
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  • uIP historical problem, uip_arp_ipin()

    John Linq
    John Linq

    Not easy to find discussions about uIP. It seems that, developers who use uIP, have very good skills and encounter no problem.

    If you are interested in why uip_arp_ipin() has been defined nothing.

    #define uip_arp_ipin()
    


    Here is the reason:

    …
    • over 6 years ago
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  • delete trailing spaces

    Sander Wiggrs
    Sander Wiggrs

    Hello,

    I often use the "delete trailing white space" function to clean up my files.
    Is it possible to enable this option permanently or is it possible to create a batch file which cleans up all project .c/.h files?

    • over 6 years ago
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  • Use of BVS/BCS for fast 64bit add meanwhile possible?

    nice day
    nice day

    Hello,
    I am still dreaming of a fast way of inline assembly code for fast addition of 64 bit variables with saturation control. (I need to write 0x7FFFFFF... to the result register, if overflow occurred).

    For this purpose it would be necessary to access…

    • over 6 years ago
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  • Help with writing assembly..

    Doron Matatyahu
    Doron Matatyahu

    Hi,
    In my project I'm using LPC2378.
    I Connect display to the IO ports. (DLC0283)
    This display use a tft driver ILI9341

    It has 8 bit data - I Connect it to P1.24-31
    It has WR bit and CS bit.
    The display data is arranged in 16bit per pixel.

    To…

    • over 6 years ago
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  • Flashing 2 ARM controllers in one go.

    HenkvW
    HenkvW

    Hi,

    Our company has developed a PCB containing two ARM controllers.
    My question is: is it possible to flash both controllers through one single JTAG connector or even better flashing both controllers through one single connector in one go?

    Thanks…

    • over 7 years ago
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  • Use External USB Hub with LPC1768

    thien cdcn
    thien cdcn

    Dear all,

    My system as below :

    LPC1768 --> USB Host --> External Hub 4 Port (TUSB2046) --> Multi HID Device

    I use example code HID keyboard RL Library in :

    "C:\Keil\ARM\Boards\Keil\MCB1700\RL\USB\Host\HID_Kbd"

    ....

    for…

    • over 7 years ago
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  • MDK-ARM Version required for LPC4072

    Gunnar Bohlen
    Gunnar Bohlen

    Hello,

    in the release notes of MDK-ARM Version 4.60 I read that LPC4072 (CortexM4) is supported.
    I also read that this MDK-ARM release is delivered with ARM Compiler v5.0 (5.02.0.28).

    Can I use an earlier MDK_ARM to compile/debug code (no peripheral…

    • over 7 years ago
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  • Undefined symbol __dso_handle

    Andrew Messier
    Andrew Messier

    All,

    I have a project that was compiling and running correctly using an older version of uVision 4. I just upgraded from 4.70a to version 4.71a, and am getting the following error after I compile my project:

    .\Obj\PumaINS.axf: Error: L6218E: Undefined…

    • over 7 years ago
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  • Firmware transfer *bin from Android to uC

    Franc Hanzic
    Franc Hanzic

    Hello

    I use USB bootloader for NXP uC for firmware upload. But now I have problem with firmware upload (*.bin) from Android PC to uC NXP LPC1768. The point is that the android PC find the uC memory and I can transfer the firmware. But after reset the…

    • over 7 years ago
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  • Relocatable module

    Dejan Durdenic
    Dejan Durdenic

    I would like to create a C-code module that will contain several functions.
    It should be R/W and R/O independent and at the beginning it should contain
    a table which will hold offsets of the contained functions relative to the
    table start. This way I…

    • over 7 years ago
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  • getting started with RL ARM / RTX

    Fuchs Leonhard
    Fuchs Leonhard

    We tinker with the idea of using RL ARM in the future. I found the very interesting document "Getting Started Building Applications with RL-ARM". This pdf is a very detailed description of realtime library and the rtos itself.

    I am still…

    • over 7 years ago
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  • Error in adding library file into project.

    pramod kumar
    pramod kumar

    I am creating a library file and want to use it on keil project, .c file name is "a.c" and .h is "a.h" after bulding the project which contains only two files a.c and a.h with .lib extension it gives a.lib.

    Now I want to add this…

    • over 7 years ago
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  • Declaring memory space in external memory

    HenkvW
    HenkvW

    Hi,

    I'm using the STM32F103ZD microcontroller. This uC is residing on some control board and is physically connected by it's address bus and data bus to an external 1M*16 SRAM memory chip.

    I would like to declare a static buffer (which is…

    • over 7 years ago
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  • Bitmap image conversion

    Bruno Coppi
    Bruno Coppi

    Ciao,
    would it be possible to have more information about the bitmap converter used to generate C files in MCBSTM32C LCD_blinky example?
    Thank you, ciao
    Bruno

    • over 7 years ago
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  • MCB1700 / LPC1768 Http client

    thien cdcn
    thien cdcn

    Dear all,

    The recently started working with ARM Cortex-M3 with MCB1700 kit.
    I checked several examples, but none of them answered my need, which is used to change the parameters to external sites. When working with Arduino and ENC18J60 shield was possible…

    • over 7 years ago
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  • message transmission through Ethernet

    N A
    N A

    Hello,

    One of the application need to send & receive data through Ethernet using LPC1768 microcontroller
    For MAC initialization, PHY Device initialization and TCP/IP Protocol Stack,
    we have taken reference source code "EMAC.C" & "TCPIP.C" from…

    • over 7 years ago
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