This module implements CRC-16-CCITT (polynomial 0x1021) with 0xFFFF initial value. The data can be passed in multiple blocks. More...
Modules | |
CRC16 calculation routines configuration | |
Functions | |
uint16_t | crc16_compute (uint8_t const *p_data, uint32_t size, uint16_t const *p_crc) |
Function for calculating CRC-16 in blocks. More... | |
This module implements CRC-16-CCITT (polynomial 0x1021) with 0xFFFF initial value. The data can be passed in multiple blocks.
uint16_t crc16_compute | ( | uint8_t const * | p_data, |
uint32_t | size, | ||
uint16_t const * | p_crc | ||
) |
Function for calculating CRC-16 in blocks.
Feed each consecutive data block into this function, along with the current value of p_crc as returned by the previous call of this function. The first call of this function should pass NULL as the initial value of the crc in p_crc.
[in] | p_data | The input data block for computation. |
[in] | size | The size of the input data block in bytes. |
[in] | p_crc | The previous calculated CRC-16 value or NULL if first call. |