By checking where the Arduino DUE SPI pins are located on the pinout scheme I found these errors or presumed to be such for me: It is indicated on the double Digital pins D50-D53 as SPI but this does ...

The pinout pdf here is incorrect. According to the Arduino Due Eagle files, the pins are flipped. The first pin should be on the other side. This matches with the physical board which has the white ...

Using SPI Protocol in Arduino. Before start programming for SPI communication between two Arduinos.We need to learn about the Arduino SPI library used in Arduino IDE.. The library <SPI.h> is included ...