FLASH_PAGE_SIZE
bytes_to_write = MIN(FLASH_PAGE_SIZE, count);
uint8_t sc_dummybuf[FLASH_PAGE_SIZE];
#define NVM_DIR_MAX_SIZE (FLASH_PAGE_SIZE) /* 4Kb */
#define LIM_MAX_SIZE ((2*FLASH_PAGE_SIZE) - sizeof(struct legacy_bootstrap_region) - NVM_RSV_SIZE)
u8 page[FLASH_PAGE_SIZE];