MacOS Bluetooth connnection problem

RE: MacOS Bluetooth connnection problem

Sigurd — Tue, 27 Feb 2018 16:19:23 GMT

Hi,

I tried testing this with a Macbook air running macOS 10.13.3, using the example ble_app_hids_keyboard in SDK 13, but it works fine here. Could you try the same example ? You should also set NRF_LOG_DEFAULT_LEVEL in sdk_config.h to 4 to get DEBUG level logging.

RE: MacOS Bluetooth connnection problem

leoc7 — Fri, 23 Feb 2018 15:59:59 GMT

Nothing change. Error 8 occurs.

RE: MacOS Bluetooth connnection problem

Sigurd — Fri, 23 Feb 2018 13:57:50 GMT

What happens if you comment out the nrf_ble_gatt_att_mtu_periph_set() function ? Do you get the same behavior?

I.e.

void gatt_init(void)
{
ret_code_t err_code;

err_code = nrf_ble_gatt_init(&m_gatt, NULL);
APP_ERROR_CHECK(err_code);

//err_code = nrf_ble_gatt_att_mtu_periph_set(&m_gatt, 64);//64
//APP_ERROR_CHECK(err_code);
}

RE: MacOS Bluetooth connnection problem

leoc7 — Fri, 23 Feb 2018 12:00:10 GMT

This is my gatt_init():

static nrf_ble_gatt_t m_gatt;

/**@brief Function for initializing the GATT library. */
void gatt_init(void)
{
ret_code_t err_code;

err_code = nrf_ble_gatt_init(&m_gatt, NULL);
APP_ERROR_CHECK(err_code);

err_code = nrf_ble_gatt_att_mtu_periph_set(&m_gatt, 64);//64
APP_ERROR_CHECK(err_code);
}

Yes, I'm sure. Switch case is OK.

RE: MacOS Bluetooth connnection problem

Sigurd — Thu, 22 Feb 2018 13:14:05 GMT

The error indicates that you are in a Invalid Connection State or that no ATT_MTU exchange request are pending.

Is this from a native SDK 13 example? or is it ported from SDK 12? Are you using the GATT Module (gatt_init()) ?

Also make sure that you have a "break;" in the switch case above BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST.

RE: MacOS Bluetooth connnection problem

leoc7 — Mon, 19 Feb 2018 09:35:12 GMT

Hi,

Error occurs here:

case BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST:
err_code = sd_ble_gatts_exchange_mtu_reply(p_ble_evt->evt.gatts_evt.conn_handle, BLE_GATT_ATT_MTU_DEFAULT);
APP_ERROR_CHECK(err_code); //NB: return error code = 8
break;

Error code nr. 8.

RE: MacOS Bluetooth connnection problem

leoc7 — Fri, 16 Feb 2018 14:24:25 GMT

Many thanks!

I will try and I will provide you the problem!

RE: MacOS Bluetooth connnection problem

Sigurd — Fri, 16 Feb 2018 08:44:54 GMT

Hi,

What example in the SDK are you testing? A reset indicates that you are running into the error handler, where the default behavior is to do a reset. You should then debug in order to find the reason for the reset. See this post about debugging.