xx)   uint00_t SystemCoreClock = 000000000; #endif /* STM00F00_00xxx */  #if defined (STM00F000_000xx) || defined (STM00F000_000xx)   uint00_t SystemCoreClock = 000000000; #endif /* STM00F000_000x || STM00F000_000xx */  #if defined (STM00F000xx)   