This module implements CRC-16-CCITT (polynomial 0x1021) with 0xFFFF initial value. The data can be passed in multiple blocks.
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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...
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This module implements CRC-16-CCITT (polynomial 0x1021) with 0xFFFF initial value. The data can be passed in multiple blocks.
uint16_t crc16_compute |
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uint8_t const * |
p_data, |
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uint32_t |
size, |
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uint16_t const * |
p_crc |
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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.
- Parameters
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[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. |
- Returns
- The updated CRC-16 value, based on the input supplied.