Skip to content

LibCRC API Reference – crc_dnp()

crc_dnp( input_str, num_bytes );


Parameter Type Description
input_str const unsigned char * The input byte buffer for which the CRC must be calculated
num_bytes size_t The number of characters in the input buffer

Return Value

Type Description
uint16_t The resulting CRC value


The function crc_dnp() calculates a 16 bit CRC value of an input byte buffer based on the CRC calculation algorithm used in the DNP protocol. The buffer length is provided as a parameter and the resulting CRC is returned as a return value by the function. The size of the buffer is limited to SIZE_MAX.

See Also