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CHG: 'hf 15' - swapped crc impl to table based.

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iceman1001 2018-01-29 15:55:56 +01:00
commit 095b3af43b
4 changed files with 29 additions and 22 deletions
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2
common/crc16.c
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@ -73,6 +73,7 @@ void reset_table(void) {
crc_type = CRC_NONE;
}
// table lookup LUT solution
uint16_t crc16_fast(uint8_t const *d, size_t n, uint16_t initval, bool refin, bool refout) {
// fast lookup table algorithm without augmented zero bytes, e.g. used in pkzip.
@ -96,6 +97,7 @@ uint16_t crc16_fast(uint8_t const *d, size_t n, uint16_t initval, bool refin, bo
return crc;
}
// bit looped solution
uint16_t update_crc16_ex( uint16_t crc, uint8_t c, uint16_t polynomial ) {
uint16_t i, v, tmp = 0;