Diff: main.cpp

Revision:

2:a0c7513fb634

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Jun 06 03:04:48 2014 +0000
@@ -0,0 +1,67 @@
+//Test of cheap 13.56 Mhz RFID-RC522 module from eBay
+//This code is based on Martin Olejar's MFRC522 library. Minimal changes
+//Adapted for Nucleo STM32 F401RE. Should work on other Nucleos too
+
+//Connect as follows:
+//RFID pins        ->  Nucleo header CN5 (Arduino-compatible header)
+//----------------------------------------
+//RFID IRQ=pin5    ->   Not used. Leave open
+//RFID MISO=pin4   ->   Nucleo SPI_MISO=PA_6=D12
+//RFID MOSI=pin3   ->   Nucleo SPI_MOSI=PA_7=D11
+//RFID SCK=pin2    ->   Nucleo SPI_SCK =PA_5=D13
+//RFID SDA=pin1    ->   Nucleo SPI_CS  =PB_6=D10
+//RFID RST=pin7    ->   Nucleo         =PA_9=D8
+//3.3V and Gnd to the respective pins                              
+                              
+#include "mbed.h"
+#include "MFRC522.h"
+
+// Nucleo Pin for MFRC522 reset (pick another D pin if you need D8)
+#define MF_RESET    D8
+
+DigitalOut LedGreen(LED1);
+
+//Serial connection to PC for output
+Serial pc(SERIAL_TX, SERIAL_RX);
+
+MFRC522    RfChip   (SPI_MOSI, SPI_MISO, SPI_SCK, SPI_CS, MF_RESET);
+
+int main(void) {
+  pc.printf("starting...\n");
+
+  // Init. RC522 Chip
+  RfChip.PCD_Init();
+
+  while (true) {
+    LedGreen = 1;
+
+    // Look for new cards
+    if ( ! RfChip.PICC_IsNewCardPresent())
+    {
+      wait_ms(500);
+      continue;
+    }
+
+    // Select one of the cards
+    if ( ! RfChip.PICC_ReadCardSerial())
+    {
+      wait_ms(500);
+      continue;
+    }
+
+    LedGreen = 0;
+
+    // Print Card UID
+    pc.printf("Card UID: ");
+    for (uint8_t i = 0; i < RfChip.uid.size; i++)
+    {
+      pc.printf(" %X02", RfChip.uid.uidByte[i]);
+    }
+    pc.printf("\n\r");
+
+    // Print Card type
+    uint8_t piccType = RfChip.PICC_GetType(RfChip.uid.sak);
+    pc.printf("PICC Type: %s \n\r", RfChip.PICC_GetTypeName(piccType));
+    wait_ms(1000);
+  }
+}
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