Arduino Leonardo Eth Problems about mfrc522 HOT 7 CLOSED

It says on the Leonardo ETH page that pin 10 is reserved for the Wiznet interface. I think you need to use a different SS pin.

from mfrc522.

Thanks for your reply
I already used the folllowing parts in my sketch to set SS to Pin 8 because of this fact, and also set Sd and Ethernet SS Pins to Output as I found in a topic in another place ...
But the "ReaderDetails" always shows "NFC Error" so it seems not to detect the reader via SPI (Version = FF or 00)

regards
Gerald

// SPI & RFID ----------
#include <SPI.h>
#include <MFRC522.h>
// ########## NFC Defs ##########
#define SS_PIN 8
#define RST_PIN 9

// NFC CREATE -------------
MFRC522 mfrc522(SS_PIN, RST_PIN); 

// setup
void setup() {
  // Open serial
  Serial.begin(9600);

  // CS-Lines for SD and Ethernet
   pinMode(4, OUTPUT);
   pinMode(10, OUTPUT);

    // RFID READER INIT -----
    SPI.begin();
    mfrc522.PCD_Init(); // Init RC522
    Serial.print(F("NFC:"));
    ShowReaderDetails(); // Show RC522 Card Reader details
}

// get details about RC522 hardware
void ShowReaderDetails() {
   // Get MFRC522 software version
   byte v = mfrc522.PCD_ReadRegister(mfrc522.VersionReg);
   Serial.print(F("0x"));
   Serial.print(v, HEX);
   if (v == 0x91)
         Serial.print(F("=v1.0"));
    else if (v == 0x92)
          Serial.print(F("=v2.0"));
    else
           Serial.print(F("=v?.?"));
           Serial.println("");
          // When 0x00 or 0xFF is returned, communication probably failed
          if ((v == 0x00) || (v == 0xFF)) {
               Serial.println(F("NFC ERROR"));
      }
}

from mfrc522.

You don't seem to be using my library, but the miguelbalboa/rfid that mine is based on.

from mfrc522.

I am sorry, I used the library of miguelbalboa before and that doesnt work either
So i switched to your library ... why do you think I am using the other one?
Maybe I posted the wrong code ... I´ll try again by using your library when I am back at home ... so long
thanks for your help and sorry if I bothered you!
regards
Gerald

from mfrc522.

I didn't mean to be brash. It is no bother. The reason I think you are using miguelbalboas library is that you are calling mfrc522.PCD_Init(). PCD_Init is not a method in my library.

from mfrc522.

Also, for troubleshooting communication issues, a logic analyzer is a very helpful tool.
This one is relatively inexpensive and quite powerful. also the java software supports decoding of common protocols.
http://www.seeedstudio.com/depot/Open-Workbench-Logic-Sniffer-p-612.html

hook up any analyzer to your lines and verify you are getting the appropriate responses expected from the MFRC522 datasheet.

from mfrc522.

Thanks a lot for your suggestions, I have an arduino based logic analyzer and already did some SPI-sniffing, but got stuck because of my lack of understanding the protocol.
I have to investigate a little more and also I have to test again with your library - have scrambled up my tests al ittle bit.
Sorry again for opening the issue here! Your help is highly appreciated.
Gerald

from mfrc522.