CRC32
Functions | |
| void | csp_crc32_gentab (void) |
| Generate precomputed CRC32 table. More... | |
| int | csp_crc32_append (csp_packet_t *packet, bool include_header) |
| Append CRC32 checksum to packet. More... | |
| int | csp_crc32_verify (csp_packet_t *packet, bool include_header) |
| Verify CRC32 checksum on packet. More... | |
| uint32_t | csp_crc32_memory (const uint8_t *data, uint32_t length) |
| Calculate checksum for a given memory area. More... | |
Function Documentation
| int csp_crc32_append | ( | csp_packet_t * | packet, |
| bool | include_header | ||
| ) |
Append CRC32 checksum to packet.
- Parameters
-
packet Packet to append checksum include_header use header in calculation (this will not modify the flags field)
- Returns
- 0 on success, -1 on error
| void csp_crc32_gentab | ( | void | ) |
Generate precomputed CRC32 table.
| uint32_t csp_crc32_memory | ( | const uint8_t * | data, |
| uint32_t | length | ||
| ) |
Calculate checksum for a given memory area.
- Parameters
-
data pointer to memory length length of memory to do checksum on
- Returns
- return uint32_t checksum
| int csp_crc32_verify | ( | csp_packet_t * | packet, |
| bool | include_header | ||
| ) |
Verify CRC32 checksum on packet.
- Parameters
-
packet Packet to verify include_header use header in calculation (this will not modify the flags field)
- Returns
- 0 if checksum is valid, -1 otherwise
