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Dependencies:   mbed

Fork of RFID-RC522 by Project5_Software

main.cpp@4:e0bc23d5134a, 2017-11-22 (annotated)

Committer:
mario_meh
Date:
Wed Nov 22 08:55:19 2017 +0000
Revision:
4:e0bc23d5134a
Parent:
3:30e31f03d156 
Lilnija pogona

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kirchnet 2:a0c7513fb634 1 //Test of cheap 13.56 Mhz RFID-RC522 module from eBay
kirchnet 2:a0c7513fb634 2 //This code is based on Martin Olejar's MFRC522 library. Minimal changes
kirchnet 2:a0c7513fb634 3 //Adapted for Nucleo STM32 F401RE. Should work on other Nucleos too
kirchnet 2:a0c7513fb634 4
kirchnet 2:a0c7513fb634 5 //Connect as follows:
kirchnet 2:a0c7513fb634 6 //RFID pins -> Nucleo header CN5 (Arduino-compatible header)
kirchnet 2:a0c7513fb634 7 //----------------------------------------
kirchnet 2:a0c7513fb634 8 //RFID IRQ=pin5 -> Not used. Leave open
kirchnet 2:a0c7513fb634 9 //RFID MISO=pin4 -> Nucleo SPI_MISO=PA_6=D12
kirchnet 2:a0c7513fb634 10 //RFID MOSI=pin3 -> Nucleo SPI_MOSI=PA_7=D11
kirchnet 2:a0c7513fb634 11 //RFID SCK=pin2 -> Nucleo SPI_SCK =PA_5=D13
kirchnet 2:a0c7513fb634 12 //RFID SDA=pin1 -> Nucleo SPI_CS =PB_6=D10
kirchnet 2:a0c7513fb634 13 //RFID RST=pin7 -> Nucleo =PA_9=D8
kirchnet 2:a0c7513fb634 14 //3.3V and Gnd to the respective pins
kirchnet 2:a0c7513fb634 15
kirchnet 2:a0c7513fb634 16 #include "mbed.h"
kirchnet 2:a0c7513fb634 17 #include "MFRC522.h"
mario_meh 4:e0bc23d5134a 18 #include "TextLCD.h"
kirchnet 2:a0c7513fb634 19
kirchnet 2:a0c7513fb634 20 // Nucleo Pin for MFRC522 reset (pick another D pin if you need D8)
nielsvanmegen 3:30e31f03d156 21 #define MF_RESET p15
nielsvanmegen 3:30e31f03d156 22 #define SPI_MOSI p5
nielsvanmegen 3:30e31f03d156 23 #define SPI_MISO p6
nielsvanmegen 3:30e31f03d156 24 #define SPI_SCK p7
nielsvanmegen 3:30e31f03d156 25 #define SPI_CS p8
kirchnet 2:a0c7513fb634 26
kirchnet 2:a0c7513fb634 27 DigitalOut LedGreen(LED1);
kirchnet 2:a0c7513fb634 28
mario_meh 4:e0bc23d5134a 29 //LCD text display status
mario_meh 4:e0bc23d5134a 30 TextLCD lcd(p10, p11, p27, p28, p29, p30); // rs, e, d4-d7
mario_meh 4:e0bc23d5134a 31
kirchnet 2:a0c7513fb634 32 //Serial connection to PC for output
nielsvanmegen 3:30e31f03d156 33 Serial pc(USBTX, USBRX);
kirchnet 2:a0c7513fb634 34
kirchnet 2:a0c7513fb634 35 MFRC522 RfChip (SPI_MOSI, SPI_MISO, SPI_SCK, SPI_CS, MF_RESET);
kirchnet 2:a0c7513fb634 36
mario_meh 4:e0bc23d5134a 37 unsigned char tagRX[20]; //array to store incoming tag
mario_meh 4:e0bc23d5134a 38 int tagRXindex=0; //keeps track of the index in tagRX
mario_meh 4:e0bc23d5134a 39 bool tagIncomingFlag=false; //flag to indicate that a new tag is busy being read
mario_meh 4:e0bc23d5134a 40 bool newtagFlag=false; //flag to indicate that a new tag was finished being read
mario_meh 4:e0bc23d5134a 41
kirchnet 2:a0c7513fb634 42 int main(void) {
mario_meh 4:e0bc23d5134a 43 lcd.printf("starting...\r\n");
kirchnet 2:a0c7513fb634 44
kirchnet 2:a0c7513fb634 45 // Init. RC522 Chip
kirchnet 2:a0c7513fb634 46 RfChip.PCD_Init();
kirchnet 2:a0c7513fb634 47
mario_meh 4:e0bc23d5134a 48 lcd.printf("init passed\r\n");
nielsvanmegen 3:30e31f03d156 49
nielsvanmegen 3:30e31f03d156 50
kirchnet 2:a0c7513fb634 51 while (true) {
kirchnet 2:a0c7513fb634 52 LedGreen = 1;
kirchnet 2:a0c7513fb634 53
kirchnet 2:a0c7513fb634 54 // Look for new cards
kirchnet 2:a0c7513fb634 55 if ( ! RfChip.PICC_IsNewCardPresent())
kirchnet 2:a0c7513fb634 56 {
kirchnet 2:a0c7513fb634 57 wait_ms(500);
kirchnet 2:a0c7513fb634 58 continue;
kirchnet 2:a0c7513fb634 59 }
kirchnet 2:a0c7513fb634 60
kirchnet 2:a0c7513fb634 61 // Select one of the cards
nielsvanmegen 3:30e31f03d156 62 if (!RfChip.PICC_ReadCardSerial())
kirchnet 2:a0c7513fb634 63 {
kirchnet 2:a0c7513fb634 64 wait_ms(500);
mario_meh 4:e0bc23d5134a 65 lcd.printf("card read\r\n");
kirchnet 2:a0c7513fb634 66 continue;
kirchnet 2:a0c7513fb634 67 }
kirchnet 2:a0c7513fb634 68
kirchnet 2:a0c7513fb634 69 LedGreen = 0;
kirchnet 2:a0c7513fb634 70
mario_meh 4:e0bc23d5134a 71 // Print Card UID - original
mario_meh 4:e0bc23d5134a 72 //lcd.printf("Card UID: ");
mario_meh 4:e0bc23d5134a 73 //for (uint8_t i = 0; i < RfChip.uid.size; i++)
mario_meh 4:e0bc23d5134a 74 //{
mario_meh 4:e0bc23d5134a 75 // lcd.printf(" %X02", RfChip.uid.uidByte[i]);
mario_meh 4:e0bc23d5134a 76 //}
mario_meh 4:e0bc23d5134a 77 //lcd.printf("\n\r");
mario_meh 4:e0bc23d5134a 78
mario_meh 4:e0bc23d5134a 79 // Print Card UID - mario
mario_meh 4:e0bc23d5134a 80 //lcd.cls();
mario_meh 4:e0bc23d5134a 81 //lcd.printf("Card UID: ");
kirchnet 2:a0c7513fb634 82 for (uint8_t i = 0; i < RfChip.uid.size; i++)
kirchnet 2:a0c7513fb634 83 {
mario_meh 4:e0bc23d5134a 84 tagRX[i] = RfChip.uid.uidByte[i];
kirchnet 2:a0c7513fb634 85 }
mario_meh 4:e0bc23d5134a 86 lcd.printf("\n\r");
kirchnet 2:a0c7513fb634 87
kirchnet 2:a0c7513fb634 88 // Print Card type
mario_meh 4:e0bc23d5134a 89 //uint8_t piccType = RfChip.PICC_GetType(RfChip.uid.sak);
mario_meh 4:e0bc23d5134a 90 //lcd.printf("PICC Type: %s \n\r", RfChip.PICC_GetTypeName(piccType));
mario_meh 4:e0bc23d5134a 91
mario_meh 4:e0bc23d5134a 92 lcd.cls();
mario_meh 4:e0bc23d5134a 93 lcd.printf("Card UID: ");
mario_meh 4:e0bc23d5134a 94 lcd.printf(" %s", tagRX);
mario_meh 4:e0bc23d5134a 95
kirchnet 2:a0c7513fb634 96 wait_ms(1000);
kirchnet 2:a0c7513fb634 97 }
kirchnet 2:a0c7513fb634 98 }