https://devzone.nordicsemi.com/f/nordic-q-a/19010/send-multiple-mosi-signal-to-spi-and-received-it-on-m_rx_bufHello! Does anyone know how can we send the multiple uint8_t MOSI signal to SPI and received the result on m_rx_buf? Trying to send multiple bytes to &quot;m_tx_buf&quot;: #define SPI_INSTANCE 0 /**&lt; SPI instance index. */ //line 24 static const nrf_drv_spi_ten-USTelligent Community 13Mon, 16 Jan 2017 14:31:01 GMThttps://devzone.nordicsemi.com/thread/73489?ContentTypeID=1Mon, 16 Jan 2017 14:31:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9d8a7d37-7d3a-4108-95ba-e7475ac36489Ole Bauck<p>Yes, just pass this array as <code>p_tx_buffer</code> parameter and the length as the <code>tx_buffer_length</code> parameter.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/73488?ContentTypeID=1Mon, 16 Jan 2017 14:09:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e337c949-e379-47f3-b838-55de1b71fe03FormerMember<p>Can I send multiple byte to MOSI like this?</p> <pre><code>static uint8_t m_tx_buf[] = {0x20, 0x00, 0x2C,0x00}; /**&lt; TX buffer. * </code></pre><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/73490?ContentTypeID=1Mon, 16 Jan 2017 13:10:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:20ec17cd-c6ce-44b6-8ac3-e952f233a047Ole Bauck<p>If you want to receive 3 bytes, the last parameter (<code>rx_buffer_length</code>) in <code>nrf_drv_spi_transfer(..)</code> should be 3. Other than that it looks fine, do you experience any problems with this code?</p><div style="clear:both;"></div>