Add clock configuration

Generated throught STM32CubeMX

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

Author: fpistm

variants/NUCLEO_F207ZG/variant.cpp

@@ -192,12 +192,48 @@ extern "C" {
   */
 WEAK void SystemClock_Config(void)
 {
-// Here copy the desired System Clock Configuration
-// It could be generated thanks STM32CubeMX after code generation for Toolchain/IDE: 'SW4STM32',
-// available in main.c)
-// or
-// copied from a STM32CubeYY project examples
-// where 'YY' could be F0, F1, F2, F3, F4, F7, L0, L1, L4)
+  RCC_OscInitTypeDef RCC_OscInitStruct;
+  RCC_ClkInitTypeDef RCC_ClkInitStruct;
+
+    /**Initializes the CPU, AHB and APB busses clocks
+    */
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
+  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+  RCC_OscInitStruct.PLL.PLLM = 8;
+  RCC_OscInitStruct.PLL.PLLN = 240;
+  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
+  RCC_OscInitStruct.PLL.PLLQ = 5;
+  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
+  {
+    while(1);
+  }
+
+    /**Initializes the CPU, AHB and APB busses clocks
+    */
+  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
+                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
+  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
+  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
+
+  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3) != HAL_OK)
+  {
+    while(1);
+  }
+
+    /**Configure the Systick interrupt time
+    */
+  HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
+
+    /**Configure the Systick
+    */
+  HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
+
+  /* SysTick_IRQn interrupt configuration */
+  HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
 }
 
 #ifdef __cplusplus