Arduino Leonardo and SPI Communications

Arduino Leonardo and SPI Communications using the ENC28J60 ethernet module
I just found out that my favorite Arduino of choice (the Leonardo) has a problem with SPI  “Serial Peripheral Interface” communications (if you need to use the SS pin).  For SPI (which is bidirectional) , the following pins are normally used: SS – Slave Select - digital 10. You can use other digital pins, but

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