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Problem creating task

Posted by jordiblasi on July 29, 2016

I am using Freertos on a Intel Galileo Gen 2 board and I am having problems to launch a task. I have a reduced version of the demo main.c just eliminating the references to the demos. I have correctly compiled an run different functions but when I try to launch a Task, as described in the documentation I see no sign of it actually running. This is the code I am testing:

~~~ void frogaTask (void *pvParameters ){ ( void ) pvParameters; g_printf("GET IN");

 for ( ;; ){
	 g_printf("LOOP");
 }
 vTaskDelete( NULL );

}

int main( void ) { /* Optionally wait for a debugger to connect. */ prvLoopToWaitForDebugConnection();

/* Init the UART, GPIO, etc. */
prvSetupHardware();
g_printf("1");
BaseType_t ret = xTaskCreate( frogaTask, "Froga" , configMINIMAL_STACK_SIZE , NULL, tskIDLE_PRIORITY + 1, NULL );
g_printf("2");
/* Start the tasks and timer running. */
vTaskStartScheduler();
g_printf("3");
return 0;

}

~~~ When I run it i see nothing on the teminal but the 1 and 2 numbers. This means that Task is actually created (I have checked that ret has a 1 value, what I understand is a correct output) and Scheduler runs and never returns control, what I think is correct, but I don't see the "GET IN" and "LOOP" messages.

What I am missing? How can I get some visibility of what is going on?

Thanks


Problem creating task

Posted by rtel on July 30, 2016

If you stop the debugger, what code is executing? Could you be in an assert() (ensure configASSERT() is defined), or in a stack overflow hook (ensure stack overflow checking is set to 2).

What happens if you toggle an LED instead of calling g_printf() in the task? Use a delay so you can see the LED toggling, something like:

~~~ for( ;; ) { ToggleLED(); /* whatever the function is really called). vTaskDelay( pdMSTOTICKS( 500 ); } ~~~


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