https://devzone.nordicsemi.com/f/nordic-q-a/23692/different-master-instances-for-two-slaves-in-nrf51422Hi All, I am using nrf51422, SDK 12.0.0, an SPI OLED display 128x32, and an SD card. I want to interface an OLED display and an SD card onto the nrf51422. Although my SD card and the OLED display is working perfectly individually, but i want toen-USTelligent Community 13Sat, 22 Jul 2017 10:54:49 GMThttps://devzone.nordicsemi.com/thread/93140?ContentTypeID=1Sat, 22 Jul 2017 10:54:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2f7215a2-40cd-49e6-b9fe-dcf8da19c6f2endnode<p>Little bit too high-level description. Are you using two instances in terms of SPIM1/2? These are running over different PINs? Why then you just don&#39;t create two separate SPIM driver &quot;instances&quot; and maintain the devices and protocols on top of them? Mixing the things sounds like horrible idea (whatever HW level by using the same PINs or SW level to using same SPIM instance or same HAL driver).</p><div style="clear:both;"></div>