https://devzone.nordicsemi.com/f/nordic-q-a/18669/spi-master-ready-event-not-clearedI am implementing an SPI master to communicate with an accelerometer using the SPI HAL directly. My chip is marked nrf51822QFACA11609AC. I have implemented blocking functions for reading and writing registers on the slave. I am experiencing unexpecteden-USTelligent Community 13Tue, 03 Jan 2017 10:25:54 GMThttps://devzone.nordicsemi.com/thread/72093?ContentTypeID=1Tue, 03 Jan 2017 10:25:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:51025c38-ab1a-4e58-991e-23d7d95888a3Petter Myhre<p>I see. No Problem :) If I answered your question, maybe you can accept my answer by clicking the grey circle next to it?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/72092?ContentTypeID=1Mon, 02 Jan 2017 15:31:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:00e166df-9ad1-4fc6-871f-430099c1a624Kim Astrom<p>OK, thank you for the clarification. The reason I misinterpreted the documentation was that in the nrf51 reference manual SPI master flowchart (figure 58), clearing of the READY event is not depicted, and there are also some discussion threads where it has been claimed that RXD read does the clearing.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/72091?ContentTypeID=1Mon, 02 Jan 2017 11:18:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:900897c5-f07c-4b7e-a2b3-4ca1a52811bbPetter Myhre<p>This is expected behavior, you need to clear the events manually.</p><div style="clear:both;"></div>