https://test-devzone.nordicsemi.com/f/nordic-q-a/88192/jdi-lpm027m128c-display-interfacing-with-nrf52840Hi, I have been working on the display from JDI LPM027M128C with the nrf52840 development kit. By consulting the datasheet of the display, it seems to work with the spi but after a lot of tries and trying different spi examples from nrf52 SDK, I amen-USTelligent Community 13 Non-ProductionMon, 23 May 2022 19:38:56 GMThttps://test-devzone.nordicsemi.com/thread/369119?ContentTypeID=1Mon, 23 May 2022 19:38:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f3253eae-5516-4cc3-ac4b-49bfde74d36duser2111<p>Hello,</p> <p>You need to get a logic analyzer trace to check the data on SPI (CSN, CLOCK, MISO and MOSI), then compare with the datasheet of the JDI display to check if the order of data is correct. Make sure that GND is connected between the boards, and that VDD is the same or close to the same voltage.</p> <p>Kenneth</p><div style="clear:both;"></div>