Hi I’m debugging a new project which runs with FreeRTOS and have got an problem during debugging the source. Problem:
Everytime I set a breakpoint in one task, there are three taks running (quasi-)parallel, it stops there and next time never gets to this BP again. When I stop the application I see, that the vApplicationStackOverflowHook()-function was called. The other 2 tasks are still running fine. But the task I want to debug, is now in the endless-for-loop.. I can also do the same with one of the two other running tasks, which also stops then after reaching the overflow-function.. Any suggestions? Best regards
Patrick

Any suggestions?

Yes – tell us which chip and compiler you are using.

Omg … bad job from my side to forget it. I use MCF52259 (on MCF52259EVB) from Freescale. IDE CW 10.1, I use the included Coldfire-Compiler there. The code I use is the following:

#define Queue_Active    0

unsigned int counter;
unsigned int counter_T2;
xQueueHandle xQueue1;
static portTASK_FUNCTION(vMainTask, pvParameters) {
    const portTickType xDelay = 2/portTICK_RATE_MS;
    portTickType xActual = 0;
#if Queue_Active 
    counter = 0;
    xQueue1 = xQueueCreate(4, sizeof(unsigned int));

    if(xQueueSend(xQueue1,&counter,10) != pdPASS ){
        portNOP();
    }
#endif

    for(;;){
        xActual = xTaskGetTickCount();
        vTaskDelayUntil(&xActual,xDelay);
#if Queue_Active            
        portENTER_CRITICAL();
#endif      
        Bit1_NegVal();  
#if Queue_Active        
        xQueueReceive(xQueue1,&counter,1);
        counter++;
        xQueueSend(xQueue1,&counter,1);
        counter = 0;    
        portEXIT_CRITICAL();
#endif      
    }   
}
static portTASK_FUNCTION(vMainTask2, pvParameters) {
    const portTickType xDelay = 2/portTICK_RATE_MS;

    for(;;){
        vTaskDelay(xDelay);
#if Queue_Active            
        portENTER_CRITICAL();
#endif          
        Bit2_NegVal();
#if Queue_Active        
        xQueueReceive(xQueue1,&counter_T2,1);
        counter_T2++;
        xQueueSend(xQueue1,&counter_T2,1);
        counter_T2 = 0; 
        portEXIT_CRITICAL();
#endif  
    }
}
static portTASK_FUNCTION(vMainTask3, pvParameters) {
    const portTickType xDelay = 10/portTICK_RATE_MS;

    for(;;){
        vTaskDelay(xDelay);
        Bit3_NegVal();
    }
}

I already tried to increase stack ov all and of certain tasks (from standard 600 to 2.4k) but without success. Thx! Best regards
Patrick