https://devzone.nordicsemi.com/f/nordic-q-a/28112/i-have-problem-with-c-knowledgeHello everyone! I am learning with nrf52840 MCU and SDK version 13. When I read the example. I see one line: SVCALL(SD_BLE_GAP_CONNECT, uint32_t, sd_ble_gap_connect(ble_gap_addr_t const *p_peer_addr, ble_gap_scan_params_t const *p_scan_params, ble_gap_conn_params_ten-USTelligent Community 13Thu, 09 Nov 2017 09:01:51 GMThttps://devzone.nordicsemi.com/thread/110900?ContentTypeID=1Thu, 09 Nov 2017 09:01:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7169215c-563c-4f15-984b-201e5de424afendnode<p>Just search <code>SVCALL</code> on this forum and read explanation from Nordic (e.g. <a href="https://devzone.nordicsemi.com/question/149247/svcallsd_ble_gap_connect/?answer=149252#post-id-149252">this is good start</a>).</p><div style="clear:both;"></div>