https://devzone.nordicsemi.com/f/nordic-q-a/3659/spi-master-codeHello, i have seen here a extended version of Spi-Master driver: devzone.nordicsemi.com/.../a00006.html With funktions like: -spi_master_send_recv(); spi_master_get_state(); and more.... Where i can download it? Regardsen-USTelligent Community 13Sun, 31 Aug 2014 09:59:35 GMThttps://devzone.nordicsemi.com/thread/13286?ContentTypeID=1Sun, 31 Aug 2014 09:59:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ba94bd62-22fc-4a1e-8823-d684d7ddb7a3Sebastian<p>you are referring to documentation from SDK 6.0 so download nrf51 SDK 6.0 or newer and spi_master driver with this functionality should be there.</p><div style="clear:both;"></div>