filesystem init. step 1 of 3

Core/Src/main.c

@@ -19,7 +19,9 @@
 /* Includes ------------------------------------------------------------------*/
 #include "main.h"
 #include "cmsis_os.h"
+#include "fatfs.h"
 #include "usart.h"
+#include "usb_device.h"
 #include "gpio.h"
 
 /* Private includes ----------------------------------------------------------*/
@@ -45,7 +47,9 @@
 /* Private variables ---------------------------------------------------------*/
 
 /* USER CODE BEGIN PV */
-
+FATFS USERFatFs;    /* Объект файловой системы для User-раздела */
+FIL MyFile;         /* Объект файла */
+extern char USERPath[4]; /* Путь к диску, CubeMX создает автоматически */
 /* USER CODE END PV */
 
 /* Private function prototypes -----------------------------------------------*/
@@ -95,6 +99,7 @@ int main(void)
   MX_GPIO_Init();
   MX_USART2_UART_Init();
   MX_USART3_UART_Init();
+  MX_FATFS_Init();
   /* USER CODE BEGIN 2 */
   /* USER CODE END 2 */
 
@@ -130,7 +135,7 @@ void SystemClock_Config(void)
   /** Configure the main internal regulator output voltage
   */
   __HAL_RCC_PWR_CLK_ENABLE();
-  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
+  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
 
   /** Initializes the RCC Oscillators according to the specified parameters
   * in the RCC_OscInitTypeDef structure.
@@ -140,9 +145,9 @@ void SystemClock_Config(void)
   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
   RCC_OscInitStruct.PLL.PLLM = 4;
-  RCC_OscInitStruct.PLL.PLLN = 216;
+  RCC_OscInitStruct.PLL.PLLN = 96;
   RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
-  RCC_OscInitStruct.PLL.PLLQ = 2;
+  RCC_OscInitStruct.PLL.PLLQ = 4;
   RCC_OscInitStruct.PLL.PLLR = 2;
   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
   {
@@ -162,10 +167,10 @@ void SystemClock_Config(void)
                               |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;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
+  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
 
-  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_7) != HAL_OK)
+  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3) != HAL_OK)
   {
     Error_Handler();
   }