28 lines
391 B
C
28 lines
391 B
C
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#ifndef CRC_H_
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#define CRC_H_
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#include <stdint.h>
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#include <avr/pgmspace.h>
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#include <avr/io.h>
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#define CRC_INIT_VALUE (0x0000)
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#define CRC_LEN (2)
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extern const uint16_t crc16_table[] PROGMEM;
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static inline uint16_t crc_step(uint16_t old_crc, uint8_t new_byte)
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{
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uint16_t crc;
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crc = (old_crc >> 8) ^ crc16_table[new_byte ^ (old_crc & 0xff)];
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return crc;
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}
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#endif // CRC_H_
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