https://devzone.nordicsemi.com/f/nordic-q-a/14665/spi-enableI add file &quot;nrf_drv_spi.c&quot; in the group of nRF_Driver, and in the nrf_drv_config.h add the code: #define SPI0_ENABLED 1 ;#define SPI0_USE_EASY_DMA 1; in the main.c file I add two headers nrf_drv_spi.h and nrf_drv_config.h ,then I build,there are two errorsen-USTelligent Community 13Sat, 24 Nov 2018 17:31:30 GMThttps://devzone.nordicsemi.com/thread/158913?ContentTypeID=1Sat, 24 Nov 2018 17:31:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8609f569-5ff1-4a50-b884-00afeb8d48efvohra alihussain<p>you should check spi instance in your spi initialization file that you are using it correctly.</p><div style="clear:both;"></div>