SEGGER - Martin Administrator

  • Member since Jul 1st 2014
Last Activity

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  • fiopel -

    Hello Martin SEGGER

    I have a problem with the product embOS of SEGGER.

    Description error:
    The OS_Start() function does not work. When I go through main() with the IAR debugger step by step, the debugger gets stuck in the OS_Start() function.

    I copied the code from the Manual Real-Time Operating System User Guide & Reference Manual from SEGGER page 40. I suppose, that the code in this manual is working.

    Do you have an explanation why the debugger gets stuck in the OS_Start() function?

    I have a ScreenShoot. But I don't know, how I can add it to this forum.

    Used HW: EFM32GG11 Giant Gecko Starter Kit

    Fiorenzo Peloso

    Altran AG
    Zürich, Switzerland


    #include "RTOS.h"

    static OS_STACKPTR int StackHP[128], StackLP[128]; // Task stacks
    static OS_TASK TCBHP, TCBLP; // Task control blocks

    static void HPTask(void) {
    while (1) {

    static void LPTask(void) {
    while (1) {

    * main()
    int main(void) {
    OS_Init(); // Initialize embOS
    OS_InitHW(); // Initialize required hardware
    OS_TASK_CREATE(&TCBHP, "HP Task", 100, HPTask, StackHP);
    OS_TASK_CREATE(&TCBLP, "LP Task", 50, LPTask, StackLP);
    OS_Start(); // Start embOS
    return 0;

    • SEGGER - Martin -

      Hi Fiorenzo,

      Thank you for your inquiry.
      I will contact you via email in a few minutes.

      Best regards,