Basic example of use of the functions of modMFRC

Example of 4 operation on TAG:

- Read data block
- Write data block
- write trailer (set owner KeyA)
- format card

examples/modMFRC/base_modMFRC/base_modMFRC.ino

@@ -0,0 +1,87 @@
+/*
+    base_modMFRC.ino  created by Matteo Facchetti
+
+		- Uses the library files MFRC522.h e MFRC522.cpp created by Miguel Balboa
+		- Uses the library files modMFRC.h e modMFRC.cpp created by Matteo Facchetti
+
+    DESCRIPTION:
+    Example of 4 operation on TAG:
+
+    - Read data block
+    - Write data block
+    - write trailer (set owner KeyA)
+    - format card
+
+----------------------------------------------------------------------------------------------------------------
+*/
+
+#include <Arduino.h>
+#include <SPI.h>
+#include "modMFRC.h"
+
+
+#define TAG_READ            1       // reads the tag with the keyA set
+                                    // esegue la lettura del tag con la keyA impostata
+
+//#define TAG_FORMAT          1     // performs the formatting of the TAG accessing sectors with the keyA
+                                    // esegue la formattazione del TAG accedendo ai settori con la keyA
+
+//#define TAG_WRITE_BLOCK     1     // performs the writing of a block of the TAG
+                                    // esegue la scrittura di un blocco del TAG
+
+//#define TAG_WRITE_TRAILER   1     // performs writing a trailer of the TAG
+                                    // esegue la scrittura di un trailer del TAG
+
+
+uint8_t rd_tag_buf[16];     // buffer for read TAG - buffer per la lettura del TAG
+uint8_t wr_tag_buf[16] = {0, 1, 2, 3, 4 ,5 ,6, 7, 8, 9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf};     // buffer for write TAG - buffer per la scrittura del TAG
+
+uint8_t tag_sts = 0;        // TAG status - stato del TAG
+
+// set my own key if necessary
+byte ownkeyA[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; //{0xAB, 0xCD, 0xEF, 0xAB, 0xCD, 0xEF}; //
+
+void setup()
+{
+    Serial.begin(9600);             // Initialize serial communications with the PC
+    while(!Serial) ;                // Wait serial initialization
+
+    SPI.begin();                    // Init SPI bus
+    initMFRC(ownkeyA, 0);           // Init MFRC - set the key for replace default keyA and keyB
+
+    // Do this every time you want to change the block/trailer to use
+    // only once at initialization in this case
+    setIdxBlk(1);
+    setIdxTrailer(3);
+}
+
+void loop()
+{
+    uint32_t time = millis();
+    tag_sts = 0;
+
+    // define the appropriate labels to perform the requested operations (one at a time)
+    // definire le opportune etichette per eseguire le operazioni volute (una alla volta)
+
+#ifdef TAG_READ
+    if (tag_sts = check_rfid(AUTH_KEYA, MFRC_RD, rd_tag_buf, sizeof(rd_tag_buf))) // Controllo presenza di TAG da leggere
+    {
+        print_tag_sts(tag_sts);
+    }
+#elif defined(TAG_FORMAT)
+    if (tag_sts = MFRC_formatCard(AUTH_KEYA))
+    {
+        print_tag_sts(tag_sts);
+    }
+#elif defined(TAG_WRITE_BLOCK)
+    if (tag_sts = check_rfid(AUTH_KEYA, MFRC_WR, wr_tag_buf, sizeof(wr_tag_buf)))
+    {
+        print_tag_sts(tag_sts);
+    }
+#elif defined(TAG_WRITE_TRAILER)
+    if (tag_sts = init_rfid(AUTH_DEFAULT))
+    {
+        print_tag_sts(tag_sts);
+    }
+#endif
+}