https://devzone.nordicsemi.com/f/nordic-q-a/20192/spi-slave-problem-with-ant-nrf52832Hi, Raspberry (SPI Master) -&gt; NRF52832 (SPI Slave) The code below execute event_handler of SPI with NRF_DRV_SPIS_XFER_DONE type. But RX buffer is empty. All bytes are 0x00. I have verified the RXD-&gt;PTR address e all bytes in memory address are 00en-USTelligent Community 13Tue, 07 Mar 2017 11:31:11 GMThttps://devzone.nordicsemi.com/thread/78663?ContentTypeID=1Tue, 07 Mar 2017 11:31:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f0a32236-cb1b-409d-aa1a-6c798add0a8fPetter Myhre<p>I tested your project, seems to be working fine. I tested it together with the <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v12.2.0/spi_master_example.html?cp=4_0_1_4_5_31">SPI Master example</a>. It seems to be able to receive data from the master, and send data to it. I just put a breakpoint inside spis_event_handler().</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/78667?ContentTypeID=1Mon, 06 Mar 2017 12:37:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:583687be-8066-412a-a85d-5f1a5bf1689cLeandro Zimmer<p><a href="https://drive.google.com/file/d/0B_e9FUE8ClKsMlBsNnBBVUtCMk0/view?usp=sharing">drive.google.com/.../view</a></p> <p>examples\ant\ant_advanced_burst\pca10040\s212\arm4</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/78666?ContentTypeID=1Mon, 06 Mar 2017 12:00:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:efc52ff4-6a16-4981-acf6-ab0d3f945166Petter Myhre<p>Thanks. I&#39;m not sure what could be causing this. Could you upload your complete project so I can test it here?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/78665?ContentTypeID=1Mon, 06 Mar 2017 11:29:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d3064f08-a8a1-4889-a84d-52b72bc0a61fLeandro Zimmer<p>Edited. Thank you.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/78664?ContentTypeID=1Mon, 06 Mar 2017 11:10:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3393f533-c47f-4866-b8ed-181cb1d05e7aPetter Myhre<p>What SDK and SoftDevice version are you using? Could you edit your quesiton and include the definition of spi_slave_example_init()?</p><div style="clear:both;"></div>