I am trying to use a nodemcu to control an RA8875 display controller via spi. I have to use hardware spi for compatibility with the RA8875. The program I am using for testing is the Adafruit textmode.ino from the Adafruit RA8875 Master. I have identified the Hspi pins and have tried various pins for cs. Interrupt and Reset seem to be irrelevant in this application, so I have generally left them unconnected. Power is being supplied separately to the RA8875 so that there is not too much current drain on the Nodemcu. Compiling and uploading are done using Arduino IDE 1.8.13. I do have the latest version of the IDE but couldn't find the board listed.
My next step will be to use a DUE with a nodemcu for WiFi unless anybody can help me with info on getting the Nodemcu to dothe job. The boards have been picked for voltage compatibility to avoid having to use level shifters.