CRC32
Plugin > Security

Description

CRC32 functionality for the bootloader.

Macros

#define BTL_CRC32_START 0xFFFFFFFFUL
CRC32 start value.
#define BTL_CRC32_END 0xDEBB20E3UL
CRC32 end value.

Functions

uint32_t btl_crc32Stream (const uint8_t *buffer, size_t length, uint32_t prevResult)

Function Documentation

uint32_t btl_crc32Stream ( const uint8_t * buffer,
size_t length,
uint32_t prevResult
)

Calculate CRC32 on input buffer.

Parameters
buffer Buffer containing bytes to append to CRC32 calculation
length Size of the buffer in bytes
prevResult Previous output from the CRC algorithm. Polynomial if starting a new calculation
Returns
Result of the CRC32 operation