Changed clock tree for F446

HAL/STM32/stm32f4xx.h

@@ -145,7 +145,7 @@
  #endif /* HSE_VALUE */
 #elif defined (STM32F412xG) || defined(STM32F413_423xx) || defined(STM32F446xx)
  #if !defined  (HSE_VALUE)
-  #define HSE_VALUE    ((uint32_t)16000000) /*!< Value of the External oscillator in Hz */
+  #define HSE_VALUE    ((uint32_t)8000000) /*!< Value of the External oscillator in Hz */
  #endif /* HSE_VALUE */
 #endif /* STM32F40_41xxx || STM32F427_437xx || STM32F429_439xx || STM32F401xx || STM32F411xE || STM32F469_479xx */
 /**

HAL/STM32/system_stm32f4xx.c

@@ -165,7 +165,7 @@
 
 #elif STM32F446xx
     /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */
-    #define PLL_M       16
+    #define PLL_M       8
     #define PLL_N       336
 
     /* SYSCLK = PLL_VCO / PLL_P */