RE: How to disable disconnection of Peripheral device from the central?

Sigurd — Wed, 05 Jul 2017 09:06:22 GMT

Hi,

What is happening is that you are most likely running out of available buffers, as described in the answer in your previous question here. You then get an error code when you are trying to send the data. This error code is passed into the error-handler (APP_ERROR_CHECK(err_code)), where the default behavior is to do a reset. You will then disconnect. If you want to just ignore this error-message, and discard the data, you should not check for that particular error-message.

Assuming that it's the ble_nus_string_send() function that is generating this error, and that you are using SDK 13, you could ignore the error-code like this by adding a check for NRF_ERROR_RESOURCES :

err_code = ble_nus_string_send(&m_nus, data_array, index);
if ((err_code != NRF_ERROR_INVALID_STATE) || (err_code != NRF_ERROR_RESOURCES))
{
    APP_ERROR_CHECK(err_code);
}

Note: If you are using SDK 12, check for BLE_ERROR_NO_TX_PACKETS instead of NRF_ERROR_RESOURCES.