You use the Arduino pin number for SS_PIN.
So this will set the SS pin high in output mode.
pinMode(SS_PIN, OUTPUT);
digitalWrite(SS_PIN, HIGH);
Same for SCK_PIN, MISO_PIN, and MOSI_PIN.
You use the Arduino pin number for SS_PIN.
So this will set the SS pin high in output mode.
pinMode(SS_PIN, OUTPUT);
digitalWrite(SS_PIN, HIGH);
Same for SCK_PIN, MISO_PIN, and MOSI_PIN.