+#define STM_FLASH_SR_EOP 5
+#define STM_FLASH_SR_WRPRTERR 4
+#define STM_FLASH_SR_PGERR 2
+#define STM_FLASH_SR_BSY 0
+
+#define STM_FLASH_CR_EOPIE 12
+#define STM_FLASH_CR_ERRIE 10
+#define STM_FLASH_CR_OPTWRE 9
+#define STM_FLASH_CR_LOCK 7
+#define STM_FLASH_CR_STRT 6
+#define STM_FLASH_CR_OPTER 5
+#define STM_FLASH_CR_OPTPG 4
+#define STM_FLASH_CR_MER 2
+#define STM_FLASH_CR_PER 1
+#define STM_FLASH_CR_PG 0
+