The DSU unit provides support for calculating a cyclic redundancy check (CRC32) value for a memory area (including Flash and AHB RAM).
AMOD[1:0] | Short name | External range restrictions |
---|---|---|
0 | ARRAY | CRC32 is restricted to the full Flash array area (EEPROM Emulation area not included) DATA forced to 0xFFFFFFFF before calculation (no seed) |
1 | EEPROM | CRC32 of the whole EEPROM Emulation area DATA forced to 0xFFFFFFFF before calculation (no seed) |
2-3 | Reserved |
The algorithm employed is the industry standard CRC32 algorithm using the generator polynomial 0xEDB88320 (reversed representation).