extern struct stm_rcc stm_rcc;
-/* Nominal high speed internal oscillator frequency is 16MHz */
-#define STM_HSI_FREQ 16000000
+/* Nominal high speed internal oscillator frequency is 8MHz */
+#define STM_HSI_FREQ 8000000
#define STM_RCC_CR_PLLRDY (25)
#define STM_RCC_CR_PLLON (24)