[L4] Update the system source file

Signed-off-by: Frederic Pillon <frederic.pillon@st.com>

Author: fpistm

system/STM32L4xx/system_stm32l4xx.c

@@ -108,13 +108,30 @@
   */
 
 /************************* Miscellaneous Configuration ************************/
-/*!< Uncomment the following line if you need to relocate your vector Table in
-     Internal SRAM. */
-/* #define VECT_TAB_SRAM */
 #ifndef VECT_TAB_OFFSET
-#define VECT_TAB_OFFSET  0x00 /*!< Vector Table base offset field.
-                                   This value must be a multiple of 0x200. */
+#define VECT_TAB_OFFSET         0x00000000U     /*!< Vector Table base offset field.
+                                                     This value must be a multiple of 0x200. */
+#else
+#define USER_VECT_TAB_ADDRESS
 #endif
+
+/* Note: Following vector table addresses must be defined in line with linker
+         configuration. */
+/*!< Define USER_VECT_TAB_ADDRESS if you need to relocate the vector table
+     anywhere in Flash or Sram, else the vector table is kept at the automatic
+     remap of boot address selected */
+#if defined(USER_VECT_TAB_ADDRESS)
+/*!< Define VECT_TAB_SRAM if you need to relocate your vector Table
+     in Sram else user remap will be done in Flash. */
+#if defined(VECT_TAB_SRAM)
+#define VECT_TAB_BASE_ADDRESS   SRAM1_BASE      /*!< Vector Table base address field.
+                                                     This value must be a multiple of 0x200. */
+#else
+#define VECT_TAB_BASE_ADDRESS   FLASH_BASE      /*!< Vector Table base address field.
+                                                     This value must be a multiple of 0x200. */
+#endif /* VECT_TAB_SRAM */
+#endif /* USER_VECT_TAB_ADDRESS */
+
 /******************************************************************************/
 /**
   * @}
@@ -169,10 +186,15 @@
 
 void SystemInit(void)
 {
+#if defined(USER_VECT_TAB_ADDRESS)
+  /* Configure the Vector Table location -------------------------------------*/
+  SCB->VTOR = VECT_TAB_BASE_ADDRESS | VECT_TAB_OFFSET;
+#endif
+
   /* FPU settings ------------------------------------------------------------*/
-  #if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
-    SCB->CPACR |= ((3UL << 10*2)|(3UL << 11*2));  /* set CP10 and CP11 Full Access */
-  #endif
+#if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
+  SCB->CPACR |= ((3UL << 20U)|(3UL << 22U));  /* set CP10 and CP11 Full Access */
+#endif
 
   /* Reset the RCC clock configuration to the default reset state ------------*/
   /* Set MSION bit */
@@ -192,13 +214,6 @@ void SystemInit(void)
 
   /* Disable all interrupts */
   RCC->CIER = 0x00000000U;
-
-  /* Configure the Vector Table location add offset address ------------------*/
-#ifdef VECT_TAB_SRAM
-  SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
-#else
-  SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
-#endif
 }
 
 /**