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ADD: iso11784/85 FDX-B

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ADD: the source from RevEng 1.30, got into the PM3 client.
This commit is contained in:
iceman1001 2015-06-07 11:35:49 +02:00
commit a71ece51e4
17 changed files with 3710 additions and 61 deletions
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23
common/crc16.c
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@ -7,7 +7,7 @@
//-----------------------------------------------------------------------------
#include "crc16.h"
#define CRC16_MASK_CCITT 0x1021
unsigned short update_crc16( unsigned short crc, unsigned char c )
{
@ -41,9 +41,22 @@ uint16_t crc16(uint8_t const *message, int length, uint16_t remainder, uint16_t
}
uint16_t crc16_ccitt(uint8_t const *message, int length) {
return crc16(message, length, 0xffff, 0x1021);
return crc16(message, length, 0xffff, CRC16_MASK_CCITT);
}
uint16_t crc16_ccitt_rev(uint8_t const *message, int length) {
return crc16(message, length, 0x0000, 0x1021);
}
uint16_t crc16_ccitt_kermit(uint8_t const *message, int length) {
return bit_reverse_uint16(crc16(message, length, 0x0000, CRC16_MASK_CCITT));
}
uint16_t bit_reverse_uint16 (uint16_t value) {
const uint16_t mask0 = 0x5555;
const uint16_t mask1 = 0x3333;
const uint16_t mask2 = 0x0F0F;
const uint16_t mask3 = 0x00FF;
value = (((~mask0) & value) >> 1) | ((mask0 & value) << 1);
value = (((~mask1) & value) >> 2) | ((mask1 & value) << 2);
value = (((~mask2) & value) >> 4) | ((mask2 & value) << 4);
value = (((~mask3) & value) >> 8) | ((mask3 & value) << 8);
return value;
}