https://devzone.nordicsemi.com/f/nordic-q-a/41011/a-problem-of-spiI used nRF5_SDK_15.2.0_9412b96\nRF5_SDK_15.2.0_9412b96\examples\peripheral\spis to test spi,but only the first time can receive data. logs like below,&quot;1234567&quot; is I send to nrf52840. I send many times. &lt;info&gt; app: SPIS example &lt;info&gt; app: Transferen-USTelligent Community 13Thu, 29 Nov 2018 14:07:08 GMThttps://devzone.nordicsemi.com/thread/159585?ContentTypeID=1Thu, 29 Nov 2018 14:07:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e26f2f50-fa6b-4942-adfe-1629f6e2e3cbJ&#248;rgen Holmefjord<p>Hi,</p> <p>What are you testing SPIS against? Have you checked the SPI bus with a logic analyzer to see if there is actually some data coming in?</p> <p>Best regards,<br />Jørgen</p><div style="clear:both;"></div>