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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file USB_Device/DFU_Standalone/USB_Device/App/usb_device.c
* @author MCD Application Team
* @brief This file implements the USB Device
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2019 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under Ultimate Liberty license
* SLA0044, the "License"; You may not use this file except in compliance with
* the License. You may obtain a copy of the License at:
* www.st.com/SLA0044
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "usb_device.h"
#include "usbd_core.h"
#include "usbd_desc.h"
#include "usbd_dfu.h"
#include "usbd_dfu_flash.h"
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
/* USER CODE END PV */
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
void USBD_Clock_Config(void);
/* USER CODE END PFP */
extern void Error_Handler(void);
/* USB Device Core handle declaration. */
USBD_HandleTypeDef hUsbDeviceFS;
extern USBD_DescriptorsTypeDef DFU_Desc;
/*
* -- Insert your variables declaration here --
*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/*
* -- Insert your external function declaration here --
*/
/* USER CODE BEGIN 1 */
void USBD_Clock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_CRSInitTypeDef RCC_CRSInitStruct= {0};
/* Enable HSI48 */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48;
RCC_OscInitStruct.HSI48State = RCC_HSI48_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct)!= HAL_OK)
{
Error_Handler();
}
/*Configure the clock recovery system (CRS)**********************************/
/*Enable CRS Clock*/
__HAL_RCC_CRS_CLK_ENABLE();
/* Default Synchro Signal division factor (not divided) */
RCC_CRSInitStruct.Prescaler = RCC_CRS_SYNC_DIV1;
/* Set the SYNCSRC[1:0] bits according to CRS_Source value */
RCC_CRSInitStruct.Source = RCC_CRS_SYNC_SOURCE_USB;
/* HSI48 is synchronized with USB SOF at 1KHz rate */
RCC_CRSInitStruct.ReloadValue = __HAL_RCC_CRS_RELOADVALUE_CALCULATE(48000000, 1000);
RCC_CRSInitStruct.ErrorLimitValue = RCC_CRS_ERRORLIMIT_DEFAULT;
/* Set the TRIM[5:0] to the default value */
RCC_CRSInitStruct.HSI48CalibrationValue = RCC_CRS_HSI48CALIBRATION_DEFAULT;
/* Start automatic synchronization */
HAL_RCCEx_CRSConfig (&RCC_CRSInitStruct);
}
/* USER CODE END 1 */
/**
* Init USB device Library, add supported class and start the library
* @retval None
*/
void MX_USB_Device_Init(void)
{
/* USER CODE BEGIN USB_Device_Init_PreTreatment */
/* Enable USB Device clock */
USBD_Clock_Config();
/* USER CODE END USB_Device_Init_PreTreatment */
/* Init Device Library, add supported class and start the library. */
if (USBD_Init(&hUsbDeviceFS, &DFU_Desc, DEVICE_FS) != USBD_OK) {
Error_Handler();
}
if (USBD_RegisterClass(&hUsbDeviceFS, &USBD_DFU) != USBD_OK) {
Error_Handler();
}
if (USBD_DFU_RegisterMedia(&hUsbDeviceFS, &USBD_DFU_Flash_fops) != USBD_OK) {
Error_Handler();
}
if (USBD_Start(&hUsbDeviceFS) != USBD_OK) {
Error_Handler();
}
/* USER CODE BEGIN USB_Device_Init_PostTreatment */
/* USER CODE END USB_Device_Init_PostTreatment */
}
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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