sd_app_evt_wait not giving call back

[PAJ]

Hi

I'm using sd_app_evt_wait(); to go into low_power mode. For some reason it coming back , but I can't figure out why.

Peace of code I am executing is;

while (nrf_fstorage_is_busy(&my_instance)) {
NRF_LOG_INFO("INWHILE LOOP");
sd_app_evt_wait();
}

I am not sure how to debug it? Is is softDevice issue?

EDIT:

I can see the function nrf_fsstorage_is_busy() is in softdevice,

bool nrf_fstorage_is_busy(nrf_fstorage_t const * p_fs)
{

/* If a NULL instance is provided, return true if any instance is busy.
* Uninitialized instances are considered not busy. */
if ((p_fs == NULL) || (p_fs->p_api == NULL))
{
for (uint32_t i = 0; i < NRF_FSTORAGE_INSTANCE_CNT; i++)
{
p_fs = NRF_FSTORAGE_INSTANCE_GET(i); /* cannot be NULL. */
if (p_fs->p_api != NULL)
{
/* p_api->is_busy() cannot be NULL. */
if (p_fs->p_api->is_busy(p_fs))
{
return true;
}
}
}

return false;
}

return p_fs->p_api->is_busy(p_fs);
}

Which in turn call function,

is_busy(p_fs)

I am just wondering how to debug it ,I mean where I can give print statement?

Which function get this function sd_app_evt_wait() awake signal?

Sorry, if I am asking very basic question

Best Regards,

PAJ

[bjorn-spockeli]

Hi PAJ, 

when you call this function you are waiting for an application event and if an application event occurs you will resume execution in the applications main() function from the same point where it went to sleep. Hence if sd_app_evt_wait() is returning, then it means that an application interrupt has occured. 

Best regards

Bjørn 

[bjorn-spockeli]

Hi Paj,

the nrf_fsstorage_is_busy() is not a SoftDevice function, it is simply checking if there is an ongoing flash operation or not. Which SDK version are you using and which example in the SDk are you trying to debug?

I do not understand what you mean by " Which function get this function sd_app_evt_wait() awake signal?" D

Best regards

Bjørn

[PAJ]

Thank you for the quick reply.

I am using S132S Soft-device.

In my application, it is supposed to start BLE broadcast, after,

while (nrf_fstorage_is_busy(&my_instance)) {
NRF_LOG_INFO("IN WHILE LOOP");
sd_app_evt_wait();
}

And

my_instace is mapped to callback function, as 

NRF_FSTORAGE_DEF(nrf_fstorage_t my_instance) = { 
.evt_handler = fstorage_callback };

nrf_fstorage_is_busy(&my_instance) is a function does get True return,and it so control is always in the infinite loop.

I am not sure , how to debug it? from which function I should send awake signal or something like that so as to come out while loop.

Best Regards,

PAJ

[bjorn-spockeli]

You did not state which SDK version you're using. 

I would recommend that you take a look at the flash_fstorage example in SDK v15.x.0 and use that as a reference in for your code. 

Best regards

Bjørn 

[PAJ]

Hi,

Thank you for reply. :)

I am using softDevice S132S.

Can you please let me know how to debug this issue?

And who (which function/ or which event) would be responsible for getting so as to returning False condition nrf_fstorage_is_busy(&my_instance)  in order to get out of for loop?

Best Regards,