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- #include "sdk_common.h"
- #if NRF_MODULE_ENABLED(CRC32)
- #include "crc32.h"
- #include <stdlib.h>
- uint32_t crc32_compute(uint8_t const * p_data, uint32_t size, uint32_t const * p_crc)
- {
- uint32_t crc;
- crc = (p_crc == NULL) ? 0xFFFFFFFF : ~(*p_crc);
- for (uint32_t i = 0; i < size; i++)
- {
- crc = crc ^ p_data[i];
- for (uint32_t j = 8; j > 0; j--)
- {
- crc = (crc >> 1) ^ (0xEDB88320U & ((crc & 1) ? 0xFFFFFFFF : 0));
- }
- }
- return ~crc;
- }
- #endif
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