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1 | // ISO15693 commons |
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2 | // Adrian Dabrowski 2010 and others, GPLv2 |
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3 | |
| 4 | #ifndef ISO15693_H__ |
| 5 | #define ISO15693_H__ |
| 6 | |
| 7 | // ISO15693 CRC |
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8 | #define ISO15693_CRC_PRESET (uint16_t)0xFFFF |
| 9 | #define ISO15693_CRC_POLY (uint16_t)0x8408 |
| 10 | #define ISO15693_CRC_CHECK ((uint16_t)(~0xF0B8 & 0xFFFF)) // use this for checking of a correct crc |
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11 | |
| 12 | uint16_t Iso15693Crc(uint8_t *v, int n); |
| 13 | int Iso15693AddCrc(uint8_t *req, int n); |
| 14 | char* Iso15693sprintUID(char *target,uint8_t *uid); |
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15 | unsigned short iclass_crc16(char *data_p, unsigned short length); |
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16 | |
| 17 | //----------------------------------------------------------------------------- |
| 18 | // Map a sequence of octets (~layer 2 command) into the set of bits to feed |
| 19 | // to the FPGA, to transmit that command to the tag. |
| 20 | // Mode: highspeed && one subcarrier (ASK) |
| 21 | //----------------------------------------------------------------------------- |
| 22 | |
| 23 | // The sampling rate is 106.353 ksps/s, for T = 18.8 us |
| 24 | |
| 25 | // SOF defined as |
| 26 | // 1) Unmodulated time of 56.64us |
| 27 | // 2) 24 pulses of 423.75khz |
| 28 | // 3) logic '1' (unmodulated for 18.88us followed by 8 pulses of 423.75khz) |
| 29 | |
| 30 | static const int Iso15693FrameSOF[] = { |
| 31 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
| 32 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
| 33 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 34 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 35 | -1, -1, -1, -1, |
| 36 | -1, -1, -1, -1, |
| 37 | 1, 1, 1, 1, |
| 38 | 1, 1, 1, 1 |
| 39 | }; |
| 40 | static const int Iso15693Logic0[] = { |
| 41 | 1, 1, 1, 1, |
| 42 | 1, 1, 1, 1, |
| 43 | -1, -1, -1, -1, |
| 44 | -1, -1, -1, -1 |
| 45 | }; |
| 46 | static const int Iso15693Logic1[] = { |
| 47 | -1, -1, -1, -1, |
| 48 | -1, -1, -1, -1, |
| 49 | 1, 1, 1, 1, |
| 50 | 1, 1, 1, 1 |
| 51 | }; |
| 52 | |
| 53 | // EOF defined as |
| 54 | // 1) logic '0' (8 pulses of 423.75khz followed by unmodulated for 18.88us) |
| 55 | // 2) 24 pulses of 423.75khz |
| 56 | // 3) Unmodulated time of 56.64us |
| 57 | |
| 58 | static const int Iso15693FrameEOF[] = { |
| 59 | 1, 1, 1, 1, |
| 60 | 1, 1, 1, 1, |
| 61 | -1, -1, -1, -1, |
| 62 | -1, -1, -1, -1, |
| 63 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 64 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 65 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
| 66 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 |
| 67 | }; |
| 68 | |
| 69 | |
| 70 | #endif |
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