Resume BLE communication after a timeout

[catelain]

HI,

My application is based on on your example ble_perepherical/ble_app_uart.

I realised few modification.

Now, after a BLE timeout, the circuit doesn't sleep anymore.

So during the initialisations, I have this instructions.

    ble_StackInit();
    ble_GapParamsInit();
    ble_GattInit();
    Ble_ServicesInit();
    ble_AdvertisingInit();
    ble_ConnParamsInit();

Following initialization the communication woks. I disconnect my device. After the timeout. This fonction is called.

if I have a measurement in progress (GetMeasureStart()) I don't want to sleep

void on_adv_evt(ble_adv_evt_t ble_adv_evt)
{
    uint32_t err_code;

    switch (ble_adv_evt)
    {
    case BLE_ADV_EVT_FAST:
        err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING);
        APP_ERROR_CHECK(err_code);
        break;
    case BLE_ADV_EVT_IDLE:
        if(Environnement_GetMeasureStart() == false)
        {
            sleep_mode_enter();
        }
        else
        {
            err_code = bsp_indication_set(BSP_INDICATE_IDLE);
        }
        break;
    default:
        break;
    }
}

To restart the BLE I use an GPIO interruption,

void AccInteruptHandler(nrf_drv_gpiote_pin_t pin, nrf_gpiote_polarity_t action){
    uint8_t i;
    
    if (m_advertising.adv_mode_current == BLE_ADV_MODE_IDLE){

        ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
        bsp_indication_set(BSP_INDICATE_ADVERTISING);
    }
}

It is probably here that I have problems. But I do not know how to restart a correct BLE communication.

Thanks by advance, If you have some idea.

Best Regards

Guillaume

[MartinBL]

Hi,

Have you tried debugging and set a breakpoint at ble_advertising_start(), just to see if your code even reaches that point?

You should also always check the return codes of your function calls. In the SDK you can see that it is usually done like this:

ret = ble_advertising_start(...);
APP_ERROR_CHECK(ret);

Then you debug like this to check for errors. 

[catelain]

Hi thanks for reply.

This my callstack

I have to keep the optimization at level 3 otherwise I exceed the limit 32 kb

[MartinBL]

Hi,

Do you mind sharing your project? We can take the case private if you prefer.

You might want to look into Segger Embedded Studio. We recently entered an agreement with Segger which allows developers to freely use SES without any limitations (as long as you use Nordic SoCs). So with SES you can compile your project with level 0 and make debugging easier. 

[catelain]

hi, thanks for reply.

I will send my project in private message. (I my project I use generic file for all our target, there are not only Nordic files)

We meet you at the sido.

Since I still have not looked at the IDE and RTT wiever

Regards

Guillaume