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ADD: CRC8Mad() should be used to calc the crc-8 byte for Mifare MAD config block. Doesn't work of course...

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CHG: some T/F defines..
This commit is contained in:
iceman1001
2017-07-27 09:31:23 +02:00
parent 46a0ec7130
commit f942e1ed05
4 changed files with 16 additions and 9 deletions
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14
common/crc.c
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@@ -23,8 +23,8 @@ void crc_init(crc_t *crc, int order, uint32_t polynom, uint32_t initial_value, u
crc->initial_value = initial_value;
crc->final_xor = final_xor;
crc->mask = (1L<<order)-1;
crc->refin = FALSE;
crc->refout = FALSE;
crc->refin = false;
crc->refout = false;
crc_clear(crc);
}
@@ -98,7 +98,15 @@ uint32_t CRC8Maxim(uint8_t *buff, size_t size) {
crc_update2(&crc, buff[i], 8);
return crc_finish(&crc);
}
// width=8 poly=0x1d, reversed poly=0x?? init=0xe3 refin=true refout=true xorout=0x0000 check=0xC6 name="CRC-8/MAD"
// the CRC needs to be reversed before returned.
uint32_t CRC8Mad(uint8_t *buff, size_t size) {
crc_t crc;
crc_init_ref(&crc, 8, 0x1d, 0xe3, 0, true, true);
for ( int i = 0; i < size; ++i)
crc_update2(&crc, buff[i], 8);
return reflect(crc_finish(&crc), 8);
}
// width=4 poly=0xC, reversed poly=0x7 init=0x5 refin=true refout=true xorout=0x0000 check= name="CRC-4/LEGIC"
uint32_t CRC4Legic(uint8_t *cmd, size_t size) {
crc_t crc;