fix: clock config

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

Author: fpistm

variants/STM32F3xx/F303V(D-E)(H-T)/generic_clock.c

@@ -21,11 +21,26 @@
   */
 WEAK void SystemClock_Config(void)
 {
+  RCC_OscInitTypeDef RCC_OscInitStruct = {};
   RCC_ClkInitTypeDef RCC_ClkInitStruct = {};
   RCC_PeriphCLKInitTypeDef PeriphClkInit = {};
 
+  /** Initializes the RCC Oscillators according to the specified parameters
+    * in the RCC_OscInitTypeDef structure.
+    */
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
+  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
+  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
+  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
+  RCC_OscInitStruct.PLL.PREDIV = RCC_PREDIV_DIV1;
+  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
+    Error_Handler();
+  }
+
   /** Initializes the CPU, AHB and APB buses clocks
-   */
+    */
   RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK
                                 | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
   RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;