-#define STM_RCC_CFGR_MCOPRE (28)
-#define STM_RCC_CFGR_MCOPRE_DIV_1 0
-#define STM_RCC_CFGR_MCOPRE_DIV_2 1
-#define STM_RCC_CFGR_MCOPRE_DIV_4 2
-#define STM_RCC_CFGR_MCOPRE_DIV_8 3
-#define STM_RCC_CFGR_MCOPRE_DIV_16 4
-#define STM_RCC_CFGR_MCOPRE_MASK 7UL
-