Add bootloader

Core/Src/main.c

@@ -91,7 +91,24 @@ void vDefaultTask(void *argument);
 
 /* Private user code ---------------------------------------------------------*/
 /* USER CODE BEGIN 0 */
+/**
+  * @brief  Vector base address configuration. It should no longer be at the start of
+  *         flash memory but moved forward because the first part of flash is
+  *         reserved for the bootloader. Note that this is already done by the
+  *         bootloader before starting this program. Unfortunately, function
+  *         SystemInit() overwrites this change again.
+  * @return none.
+  */
+static void VectorBase_Config(void)
+{
+  /* The constant array with vectors of the vector table is declared externally in the
+   * c-startup code.
+   */
+  extern const unsigned long g_pfnVectors[];
 
+  /* Remap the vector table to where the vector table is located for this program. */
+  SCB->VTOR = (unsigned long)&g_pfnVectors[0];
+}
 /* USER CODE END 0 */
 
 /**
@@ -101,7 +118,7 @@ void vDefaultTask(void *argument);
 int main(void)
 {
   /* USER CODE BEGIN 1 */
-
+  VectorBase_Config();
   /* USER CODE END 1 */
 
   /* MCU Configuration--------------------------------------------------------*/