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Description
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 not appear in the wiring diagram.
The labels on the SPI pins on the SPI connector are also wrong and precisely all three are reversed.
the correct sequence is this:
1: MISO (CIPO) PA25 SPI0_MISO PA25
2: VCC
3: SCK PA27 SPI0_SPCK PA27
4: MOSI (COPI) PA26 SPI0_MOSI PA26
5: RESET
6:GND
Datasheet Microchip Pg. 679 https://www.microchip.com/content/dam/mchp/documents/OTH/ProductDocuments/DataSheets/Atmel-11057-32-bit-Cortex-M3-Microcontroller-SAM3X-SAM3A_Datasheet.pdf
Table 32-2. I/O Lines Instance Signal I/O Line Peripheral
SPI0 SPI0_MISO PA25
SPI0 SPI0_MOSI PA26
SPI0 SPI0_SPCK PA27