Hi,
When doing SPI communication between two ATMEGAs, I can configure one to be the master and the other slave. Do I really need to make use of the /SS pin to select the other ATMEGA as the slave? I can understand if SPI is done to another device, e.g., an SPI sensor or something. But, between two ATMEGAs, I feel making use of the /SS is such a waste of the pin.
Thanks!