rcbench
Servo and ESC test bench: panel, IOmcu and shared C
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link_crc.h
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1
16#ifndef RCBENCH_LINK_CRC_H
17#define RCBENCH_LINK_CRC_H
18
19#include <stddef.h>
20#include <stdint.h>
21
22#ifdef __cplusplus
23extern "C" {
24#endif
25
27#define LINK_CRC_INIT 0xFFFFu
28
32#define LINK_CRC_CHECK 0x29B1u
33
46uint16_t link_crc(uint16_t crc, const void *data, size_t len);
47
51#define LINK_FNV_INIT 0x811C9DC5uL
52
57#define LINK_FNV_CHECK 0xBB86B11CuL
58
71uint32_t link_fnv1a32(uint32_t hash, const void *data, size_t len);
72
73#ifdef __cplusplus
74}
75#endif
76
77#endif /* RCBENCH_LINK_CRC_H */
link_fnv1a32
uint32_t link_fnv1a32(uint32_t hash, const void *data, size_t len)
FNV-1a, 32 bits: per byte, XOR then multiply by 16777619.
Definition link_crc.c:30
link_crc
uint16_t link_crc(uint16_t crc, const void *data, size_t len)
Fold len bytes into crc and return the new accumulator.
Definition link_crc.c:16