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deepsleep question vApplicationIdleHook does not work

weilsng li
Prodigy 235 points
Other Parts Discussed in Thread: CC3200

I  want to test the deepsleep powermode of cc3200 . I have runned the project of deepsleep_nw. It works well.

Then i copy these function (vApplicationIdleHook( void))  to my project .I find it does not work.There are no message reported .

This is my function . What should i do .

#include "FreeRTOS.h"
#include "osi.h"

void
vApplicationIdleHook( void )
{
    int iRetVal;

    //
    // Enter SLEEP...WaitForInterrupt ARM intrinsic
    //
    Report("DEEPSLEEP: Entering DeepSleep\n\r");

    //MAP_UtilsDelay(80000);
    for(iRetVal = 0; iRetVal < 80000; iRetVal++);


    //
    // Disable the SYSTICK interrupt
    //
    MAP_IntDisable(FAULT_SYSTICK);
    MAP_PRCMDeepSleepEnter();

    //
    // Enable the SYSTICK interrupt
    //
    MAP_IntEnable(FAULT_SYSTICK);
    Report("DEEPSLEEP: Exiting DeepSleep\n\r");
}

IN FreeRTOSConfig.h

#define configUSE_PREEMPTION            1
#define configUSE_IDLE_HOOK                1
#define configUSE_TICK_HOOK                0 // 1

  • 0
    TI__Expert 5025 points

    Hi Weilsng Li,

    Does the main task in your application block on some OS construct in order to relinquish the CPU for the low priority idle task to execute?

    Best regards,

    Naveen

  • 0 in reply to Naveen Narayanan
    Prodigy 235 points

    sorry，i can't understand the meaning (block on some OS construct),

    I creat four tasks. In every task i used while(1);

    I want to know when the function will be executed.

  • 0 in reply to weilsng li
    TI__Expert 5025 points

    Hi Weilsng Li,

    By blocking on OS construct, i meant for ex., waiting on semaphore. Or if you invoke a blocking simplelink API (for ex. sl_recv) it will inturn block on a semaphore. This will allow the OS to schedule the low priority idle task.

    Having while(1) loop will not allow the idle task to run.

    Best regards,

    Naveen 

  • 0 in reply to Naveen Narayanan
    Expert 1570 points

    Hi Naveen,

    Wouldn't Task_Sleep() also qualify as an OS construct in this context?  I have a similar situation as Weilsng, in that I have an app with a number of tasks running, each with a main while(1) loop, but within each there is always a Task_sleep() call.  Some of these also wait on semaphores and/or make simplelink calls, but all will at some point reach the Task_sleep call.  I tried to just print out a message in the vApplicationIdleHook function but it never runs.

    Could it be that there is never a point where all tasks are idle (in the Task_sleep call) at the same time?  I've tried disabling most tasks but it doesn't change.

    Also, I'm using TI-RTOS, so I'm not sure the vApplicationIdleHook function applies here.  I found this function (empty) in the network_if.c file, but within a #ifdef USE_FREERTOS switch and it was greyed out since I'm not using FreeRTOS.  Is vApplicationIdleHook applicable to TI-RTOS?  This call is used in the deepsleep_nw example but it's not too clear to me if this is using FreeRTOS or TI-RTOS.


    Thanks,

    Angelo