- #define VIRTUAL_MEMORY_BLOCK_SIZE 512
- #define ALLOCATION_UNIT_BLOCKS 4
- #define LUN_MEDIA_BLOCKS ((FLASHEND + 1) / VIRTUAL_MEMORY_BLOCK_SIZE) + 16
+ #define FIRMWARE_FILE_SIZE (FLASHEND + 1UL)
+
+ #define SECTOR_SIZE_BYTES 512
+ #define SECTOR_PER_CLUSTER 4
+ #define CLUSTER_SIZE_BYTES (SECTOR_PER_CLUSTER * SECTOR_SIZE_BYTES)
+ #define FILE_CLUSTERS(size) ((size / CLUSTER_SIZE_BYTES) + ((size % CLUSTER_SIZE_BYTES) ? 1 : 0))
+
+ #define LUN_MEDIA_BLOCKS ((FIRMWARE_FILE_SIZE / SECTOR_SIZE_BYTES) + 32)
+
+ #define FAT_TIME(h, m, s) ((h << 11) | (m << 5) | (s >> 1))
+ #define FAT_DATE(d, m, y) (((y - 1980) << 9) | (m << 5) | (d << 0))