bm019.h

00001 
00002 #ifndef BM019_H
00003 #define BM019_H
00004 
00005 #include "log.h"
00006 #include "mbed.h"
00007 
00008 #define BM019_MOSI p4
00009 #define BM019_MISO p3
00010 #define BM019_CLK p5
00011 
00012 #define BM019_CS p2
00013 #define BM019_IRQ p1
00014 
00015 #define BM019_MAX_RX 512
00016 #define BM019_READY_TIMEOUT 50 /* 0 for endless waiting else  ms to wait */
00017 
00018 enum BM019_PROTOCOL_ISO_IEC_15693_BYTE_0 {
00019     BM019_PROTOCOL_ISO_IEC_15693_BYTE_0_0_NO_CRC = 0x00,
00020     BM019_PROTOCOL_ISO_IEC_15693_BYTE_0_0_CRC = 0x01,
00021 
00022     BM019_PROTOCOL_ISO_IEC_15693_BYTE_0_1_SINGLE_SUBCARRIER = 0x00,
00023     BM019_PROTOCOL_ISO_IEC_15693_BYTE_0_1_DUAL_SUBCARRIER = 0x02,
00024 
00025     BM019_PROTOCOL_ISO_IEC_15693_BYTE_0_2_100_MODULATION = 0x00,
00026     BM019_PROTOCOL_ISO_IEC_15693_BYTE_0_2_10_MODULATION = 0x04,
00027 
00028     BM019_PROTOCOL_ISO_IEC_15693_BYTE_0_3_RESPECT_312U_DELAY = 0x00,
00029     BM019_PROTOCOL_ISO_IEC_15693_BYTE_0_3_WAIT_FOR_SOF = 0x08,
00030 
00031     BM019_PROTOCOL_ISO_IEC_15693_BYTE_0_45_26_KBPS = 0x00,
00032     BM019_PROTOCOL_ISO_IEC_15693_BYTE_0_45_52_KBPS = 0x10,
00033     BM019_PROTOCOL_ISO_IEC_15693_BYTE_0_45_6_KBPS = 0x20
00034 };
00035 
00036 enum BM019_CODES {
00037     EFrameRecvOK    = 0x80, // Frame correctly received (additionally see CRC/Parity information)
00038     EUserStop       = 0x85, // Stopped by user (used only in Card mode)
00039     ECommError      = 0x86, // Hardware communication error
00040     EFrameWaitTOut  = 0x87, // Frame wait time out (no valid reception)
00041     EInvalidSof     = 0x88, // Invalid SOF
00042     EBufOverflow    = 0x89, // Too many bytes received and data still arriving
00043     EFramingError   = 0x8A, // if start bit = 1 or stop bit = 0
00044     EEgtError       = 0x8B, // EGT time out
00045     EInvalidLen     = 0x8C, // Valid for ISO/IEC 18092, if Length <3
00046     ECrcError       = 0x8D, // CRC error, Valid only for ISO/IEC 18092
00047     ERecvLost       = 0x8E, // When reception is lost without EOF received (or subcarrier was lost)
00048     ENoField        = 0x8F, // When Listen command detects the absence of external field
00049     EUnintByte      = 0x90, //Residual bits in last byte. Useful for ACK/NAK reception of ISO/IEC 14443 Type A.
00050 };
00051 
00052 enum BM019_STATE {
00053     BM019_STATE_UNKNOWN   = 0, //intial condition
00054     BM019_STATE_ANSWERING = 1, //if any communiaction has been successful
00055     BM019_STATE_PROTOCOL  = 2, //a protocol (other then off) has been set
00056 
00057 };
00058 
00059 extern BM019_STATE stateBM019;
00060 
00061 struct BM019_IDN
00062 {
00063     char deviceID[13];
00064     char romCRC[2];
00065 };
00066 
00067 struct BM019_TAG {
00068     uint8_t crc[2];
00069     uint8_t uid[8];
00070 };
00071 
00072 BM019_STATE getStateBM019();
00073 
00074 bool initBM019();
00075 
00076 bool resetBM019();
00077 bool wakeBM019(int timeout = BM019_READY_TIMEOUT);
00078 bool hybernateBM019();
00079 
00080 bool idnBM019(BM019_IDN *idn);
00081 
00082 bool setProtocolOFF();
00083 bool setProtocolISO_EIC_15693BM019(BM019_PROTOCOL_ISO_IEC_15693_BYTE_0 configuration);
00084 
00085 bool echoBM019(int timeout = BM019_READY_TIMEOUT, bool log = true);
00086 
00087 bool inventoryISO_IES_15693BM019(BM019_TAG *tag, int timeout = BM019_READY_TIMEOUT);
00088 
00089 int readBM019(uint8_t adr, uint8_t *buf, int len, int timeout = BM019_READY_TIMEOUT);
00090 int readMultiBM019(uint8_t adr, int count, uint8_t *buf, int len, int timeout = BM019_READY_TIMEOUT);
00091 #endif /* BM019_H   */