@PaulS: Sorry, I should have explained. I include the Ethernet library and that includes the w5100.h file.
@billroy: So I did what you proposed and non of the values are defined. See code below
w5100.h
#if defined(__AVR_ATmega1280_DFR__)
inline static void initSS() { DDRL |= _BV(0); };
inline static void setSS() { PORTL &= ~_BV(0); };
inline static void resetSS() { PORTl |= _BV(0); };
#define WORKED
#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
inline static void initSS() { DDRB |= _BV(4); };
inline static void setSS() { PORTB &= ~_BV(4); };
inline static void resetSS() { PORTB |= _BV(4); };
#define N_WORKED0
#elif defined(__AVR_ATmega32U4__)
inline static void initSS() { DDRB |= _BV(6); };
inline static void setSS() { PORTB &= ~_BV(6); };
inline static void resetSS() { PORTB |= _BV(6); };
#define N_WORKED1
#elif defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB162__)
inline static void initSS() { DDRB |= _BV(0); };
inline static void setSS() { PORTB &= ~_BV(0); };
inline static void resetSS() { PORTB |= _BV(0); };
#define N_WORKED2
#else
inline static void initSS() { DDRB |= _BV(2); };
inline static void setSS() { PORTB &= ~_BV(2); };
inline static void resetSS() { PORTB |= _BV(2); };
#define N_WORKED3
#endif
sketch (just the changes):
#if defined(WORKED)
Serial.println("worked0");
#endif
#if defined(N_WORKED0)
Serial.println("didn't work0");
#endif
#if defined(N_WORKED1)
Serial.println("didn't work1");
#endif
#if defined(N_WORKED2)
Serial.println("didn't work2");
#endif
#if defined(N_WORKED3)
Serial.println("didn't work3");
#endif
Serial.println("Connecting...");
// start the Ethernet connection:
if (Ethernet.begin(mac) == 0) {
Serial.println("Failed to configure Ethernet using DHCP");
// no point in carrying on, so do nothing forevermore:
for(;;)
;
}
#if defined(WORKED)
Serial.println("worked0");
#endif
#if defined(N_WORKED0)
Serial.println("didn't work0");
#endif
#if defined(N_WORKED1)
Serial.println("didn't work1");
#endif
#if defined(N_WORKED2)
Serial.println("didn't work2");
#endif
#if defined(N_WORKED3)
Serial.println("didn't work3");
#endif
Am I misinterpreting the code and is the Ethernet SS pin defined somewhere else?
And thank you both for your reply's!