Hello,
I try to add pairing functionality to my app. Error code NRF_ERROR_INVALID_PARAM occur from the sd_ble_gap_sec_params_reply when i want to read my characteritic.
Characteristic properties: Read & Write : BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM No authentication required for read authentication required for write
on_ble_evt function (main.c)
case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
err_code = sd_ble_gap_sec_params_reply(m_conn_handle,BLE_GAP_SEC_STATUS_SUCCESS,&m_sec_params);
APP_ERROR_CHECK(err_code);
break;
case BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST:
{
ble_gatts_rw_authorize_reply_params_t reply;
memset(&reply, 0, sizeof(ble_gatts_rw_authorize_reply_params_t));
reply.type = p_ble_evt->evt.gatts_evt.params.authorize_request.type;
//==== Write case ====
if ( p_ble_evt->evt.gatts_evt.params.authorize_request.type == BLE_GATTS_AUTHORIZE_TYPE_READ )
{
uint8_t test_buffer[20];
for(uint8_t i = 0 ; i evt.gatts_evt.params.authorize_request.request.write.len; i++)
test_buffer[i] = p_ble_evt->evt.gatts_evt.params.authorize_request.request.write.data[i];
// This is a test function. Master will get this error when first byte is not 0x12.
if (test_buffer[0] != 0x12)
reply.params.write.gatt_status = BLE_GATT_STATUS_ATTERR_WRITE_NOT_PERMITTED;
err_code = sd_ble_gatts_rw_authorize_reply(p_ble_evt->evt.gap_evt.conn_handle, &reply);
APP_ERROR_CHECK(err_code);
}
//====Read case====
else if( p_ble_evt->evt.gatts_evt.params.authorize_request.type == BLE_GATTS_AUTHORIZE_TYPE_WRITE )
{
err_code = sd_ble_gatts_rw_authorize_reply(p_ble_evt->evt.gap_evt.conn_handle, &reply);
APP_ERROR_CHECK(err_code);
}
}
