stm32f429 demo - system init

[lwext4.git] / demos / stm32f429_disco / hw_init.c

diff --git a/demos/stm32f429_disco/hw_init.c b/demos/stm32f429_disco/hw_init.c
index 586f5119973d53f756b302d858b9927d873bcbd0..66b671485716b771720169985057db858faf3ca8 100644 (file)
--- a/demos/stm32f429_disco/hw_init.c
+++ b/demos/stm32f429_disco/hw_init.c
@@ -76,10 +76,46 @@ static void USBH_UserProcess(USBH_HandleTypeDef *phost, uint8_t id)
 #define LCD_FRAME_BUFFER_LAYER1                  LCD_FRAME_BUFFER\r
 #define CONVERTED_FRAME_BUFFER                   (LCD_FRAME_BUFFER+0x260000)\r
 \r
+static void SystemClock_Config(void)\r
+{\r
+  RCC_ClkInitTypeDef RCC_ClkInitStruct;\r
+  RCC_OscInitTypeDef RCC_OscInitStruct;\r
+\r
+  /* Enable Power Control clock */\r
+  __PWR_CLK_ENABLE();\r
+\r
+  /* The voltage scaling allows optimizing the power consumption when the device is\r
+     clocked below the maximum system frequency, to update the voltage scaling value\r
+     regarding system frequency refer to product datasheet.  */\r
+  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);\r
+\r
+  /* Enable HSE Oscillator and activate PLL with HSE as source */\r
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;\r
+  RCC_OscInitStruct.HSEState = RCC_HSE_ON;\r
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;\r
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;\r
+  RCC_OscInitStruct.PLL.PLLM = 8;\r
+  RCC_OscInitStruct.PLL.PLLN = 336;\r
+  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;\r
+  RCC_OscInitStruct.PLL.PLLQ = 7;\r
+  HAL_RCC_OscConfig (&RCC_OscInitStruct);\r
+\r
+  /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2\r
+     clocks dividers */\r
+  RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);\r
+  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;\r
+  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;\r
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;\r
+  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;\r
+  HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);\r
+}\r
+\r
+\r
 void hw_init(void)\r
 {\r
-    pll_init();\r
+       SystemInit();\r
     HAL_Init();\r
+    SystemClock_Config();\r
 \r
     /* Initialize the LEDs */\r
     BSP_LED_Init(LED3);\r