Structure size alligned by compiler.

Author: dmitry1945

components/wear_levelling/private_include/WL_Config.h

@@ -20,25 +20,25 @@
 * @brief This class is used as a structure to configure wear levelling module
 *
 */
-#ifndef wl_config_t_size
-#define wl_config_t_size (int)((48 - (2*sizeof(size_t) + 7*sizeof(uint32_t)) + sizeof(uint32_t) - 1)/sizeof(uint32_t))
-#endif // wl_config_t_size
-typedef struct WL_Config_s {
-    size_t   start_addr;      /*!< start address in the flash*/
+
+#if defined(_MSC_VER)
+#define ALIGNED_(x) __declspec(align(x))
+#else
+#if defined(__GNUC__)
+#define ALIGNED_(x) __attribute__ ((aligned(x)))
+#endif
+#endif
+
+typedef struct ALIGNED_(16) WL_Config_s { /*!< Size of wl_config_t structure should be divided by 16 for encryption*/
+    size_t   start_addr;    /*!< start address in the flash*/
     uint32_t full_mem_size; /*!< Amount of memory used to store data in bytes*/
     uint32_t page_size;     /*!< One page size in bytes. Page could be more then memory block. This parameter must be page_size >= N*block_size.*/
     uint32_t sector_size;   /*!< size of flash memory sector that will be erased and stored at once (erase)*/
     uint32_t updaterate;    /*!< Amount of accesses before block will be moved*/
     uint32_t wr_size;       /*!< Minimum amount of bytes per one block at write operation: 1...*/
     uint32_t version;       /*!< A version of current implementatioon. To erase and reallocate complete memory this ID must be different from id before.*/
     size_t   temp_buff_size;  /*!< Size of temporary allocated buffer to copy from one flash area to another. The best way, if this value will be equal to sector size.*/
-    uint32_t reserved[wl_config_t_size];   /*!< dummy array to make wl_config_t size compatible with flash encryption (divided by 16)*/
     uint32_t crc;           /*!< CRC for this config*/
-public:
-    WL_Config_s()
-    {
-        for (int i=0 ; i< wl_config_t_size ; i++) this->reserved[i] = 0;
-    }
 } wl_config_t;
 
 #ifndef _MSC_VER // MSVS has different format for this define