hello i wrote this program but i does not work, and the dspic crashes and resets periodically i use a logic analyzer for watching the CLOCKOUT and GPIO, and the watchdog is disabled the program counter never goes to the Blink task but the timer 1 interrupt handler runs did i make a mistake ? plz help!!! THANKS 🙂 sorry for the bad formatting

---

define configUSE_PREEMPTION 1

define configUSEIDLEHOOK 1

define configUSETICKHOOK 0

define configTICKRATEHZ ( ( TickType_t ) 1000 )

define configCPUCLOCKHZ ( ( unsigned long ) 25000000 ) /* Fosc / 2 */

define configMAX_PRIORITIES ( 4 )

define configMINIMALSTACKSIZE ( 105 )

define configTOTALHEAPSIZE ( ( size_t ) 5120 )

define configMAXTASKNAME_LEN ( 4 )

define configUSETRACEFACILITY 0

define configUSE16BIT_TICKS 1

define configIDLESHOULDYIELD 1

/* Co-routine definitions. */

define configUSECOROUTINES 0

define configMAXCOROUTINE_PRIORITIES ( 2 )

/* Set the following definitions to 1 to include the API function, or zero to exclude the API function. */

define INCLUDE_vTaskPrioritySet 1

define INCLUDE_uxTaskPriorityGet 0

define INCLUDE_vTaskDelete 0

define INCLUDE_vTaskCleanUpResources 0

define INCLUDE_vTaskSuspend 1

define INCLUDE_vTaskDelayUntil 1

define INCLUDE_vTaskDelay 1

define configKERNELINTERRUPTPRIORITY 0x01

define configUSEPORTOPTIMISEDTASKSELECTION 0

endif /* FREERTOSCONFIGH */

---

include <FreeRTOS.h>

include <list.h>

include <task.h>

include <queue.h>

void vApplicationIdleHook( void ) { for(;;){

}

} void Blink(void * p){ // unsigned long i;

for(;;){
    LATA=0xff;
    vTaskDelay(10);
    LATA=0;
    vTaskDelay(10);
}

} /* * */ int main(int argc, char** argv) { TRISA=0;

xTaskCreate( Blink, "Blink", configMINIMAL_STACK_SIZE , NULL, 2, NULL );
vTaskStartScheduler();
for(;;){

}
return 0;

}

crashes and resets periodically

That makes it sound like the tasks starts running, but crashes/resets after a while.

the program counter never goes to the Blink task

That makes it sound like the task never starts running at all. So I am confused as to how far you get in your application before the problem occurs. However, do you have the MPLABDSPICPORT symbol defined in your build options to tell the pre-processor to use the dsPIC version of the code rather than the PIC24 version? Regards.

okay my mistake i declared #define MPLABDSPICPORT on top of FreeRTOSConfig.h and all works fine now. wrong assembly code caused exception and crash at switching context time. problem solved THANKS