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fix: fdx crc calc

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This commit is contained in:
iceman1001 2019-10-30 15:44:57 +01:00
commit 01b149efa5
3 changed files with 36 additions and 14 deletions
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11
common/crc16.h
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@ -10,14 +10,16 @@
#include "common.h"
#define CRC16_POLY_CCITT 0x1021
#define CRC16_POLY_LEGIC 0xc6c6 //0x6363
#define CRC16_POLY_DNP 0x3d65
#define CRC16_POLY_CCITT 0x1021
#define CRC16_POLY_KERMIT 0x8408
#define CRC16_POLY_LEGIC 0xc6c6 //0x6363
#define CRC16_POLY_DNP 0x3d65
#define X25_CRC_CHECK ((uint16_t)(~0xF0B8 & 0xFFFF)) // use this for checking of a correct crc
typedef enum {
CRC_NONE,
CRC_11784,
CRC_14443_A,
CRC_14443_B,
CRC_15693,
@ -41,6 +43,9 @@ bool check_crc(CrcType_t ct, const uint8_t *d, size_t n);
uint16_t crc16_ccitt(uint8_t const *d, size_t n);
// Calculate CRC-16/KERMIT (FDX-B ISO11784/85) LF
uint16_t crc16_fdx(uint8_t const *d, size_t n);
// Calculate CRC-16/KERMIT
uint16_t crc16_kermit(uint8_t const *d, size_t n);
// Calculate CRC-16/XMODEM (FeliCa)