STM32CUBEMX_配置stm32f103c8t6的bootloader_USB升级

1、使用stm32cubemx配置好工程（版本6.3.0），生成keil工程
2、移植必须要的一些函数
3、使用dfusedemo工具软件测试

①配时钟外设

②配ST-Link调试接口（防止无法二次烧录程序）

③配置USB外设

④配置USB设备

特别说明：
1、USBD_DFU_APP_DEFAULT_ADD (Base Address 0x)
说明：这个参数需要填入跳转APP程序时的那个地址
2、USBD_DFU_MEDIA Interface
说明：这个参数是DfuSeDemo这个软件需要识别的参数（DfuSeDemo是DFU升级的软件），那stm32f103c8t6这个芯片说明，bootloader程序在16k以内，剩下的48K都给APP程序使用，那就应该配置为下图这样的。

⑤时钟树配置

⑥工程配置

⑦修改KEIL工程文件（修改usbd_dfu_if.c文件）

/* USER CODE BEGIN Header */
/********************************************************************************* @file           : usbd_dfu_if.c* @brief          : Usb device for Download Firmware Update.******************************************************************************* @attention** 
© Copyright (c) 2022 STMicroelectronics.* All rights reserved.
** 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 "usbd_dfu_if.h"/* USER CODE BEGIN INCLUDE *//* USER CODE END INCLUDE *//* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*//* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*//* USER CODE END PV *//** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY* @brief Usb device.* @{*//** @defgroup USBD_DFU* @brief Usb DFU device module.* @{*//** @defgroup USBD_DFU_Private_TypesDefinitions* @brief Private types.* @{*//* USER CODE BEGIN PRIVATE_TYPES *//* USER CODE END PRIVATE_TYPES *//*** @}*//** @defgroup USBD_DFU_Private_Defines* @brief Private defines.* @{*/#define FLASH_DESC_STR      "@Internal Flash   /0x08000000/16*001Ka,48*001Kg"/* USER CODE BEGIN PRIVATE_DEFINES */
#define FLASH_ERASE_TIME    (uint16_t)50
#define FLASH_PROGRAM_TIME  (uint16_t)50
/* USER CODE END PRIVATE_DEFINES *//*** @}*//** @defgroup USBD_DFU_Private_Macros* @brief Private macros.* @{*//* USER CODE BEGIN PRIVATE_MACRO *//* USER CODE END PRIVATE_MACRO *//*** @}*//** @defgroup USBD_DFU_Private_Variables* @brief Private variables.* @{*//* USER CODE BEGIN PRIVATE_VARIABLES *//* USER CODE END PRIVATE_VARIABLES *//*** @}*//** @defgroup USBD_DFU_Exported_Variables* @brief Public variables.* @{*/extern USBD_HandleTypeDef hUsbDeviceFS;/* USER CODE BEGIN EXPORTED_VARIABLES *//* USER CODE END EXPORTED_VARIABLES *//*** @}*//** @defgroup USBD_DFU_Private_FunctionPrototypes* @brief Private functions declaration.* @{*/static uint16_t MEM_If_Init_FS(void);
static uint16_t MEM_If_Erase_FS(uint32_t Add);
static uint16_t MEM_If_Write_FS(uint8_t *src, uint8_t *dest, uint32_t Len);
static uint8_t *MEM_If_Read_FS(uint8_t *src, uint8_t *dest, uint32_t Len);
static uint16_t MEM_If_DeInit_FS(void);
static uint16_t MEM_If_GetStatus_FS(uint32_t Add, uint8_t Cmd, uint8_t *buffer);/* USER CODE BEGIN PRIVATE_FUNCTIONS_DECLARATION *//* USER CODE END PRIVATE_FUNCTIONS_DECLARATION *//*** @}*/#if defined ( __ICCARM__ ) /* IAR Compiler */#pragma data_alignment=4
#endif
__ALIGN_BEGIN USBD_DFU_MediaTypeDef USBD_DFU_fops_FS __ALIGN_END =
{(uint8_t*)FLASH_DESC_STR,MEM_If_Init_FS,MEM_If_DeInit_FS,MEM_If_Erase_FS,MEM_If_Write_FS,MEM_If_Read_FS,MEM_If_GetStatus_FS
};/* Private functions ---------------------------------------------------------*/
/*** @brief  Memory initialization routine.* @retval USBD_OK if operation is successful, MAL_FAIL else.*/
uint16_t MEM_If_Init_FS(void)
{/* USER CODE BEGIN 0 */HAL_FLASH_Unlock();return (USBD_OK);/* USER CODE END 0 */
}/*** @brief  De-Initializes Memory* @retval USBD_OK if operation is successful, MAL_FAIL else*/
uint16_t MEM_If_DeInit_FS(void)
{/* USER CODE BEGIN 1 */HAL_FLASH_Lock();return (USBD_OK);/* USER CODE END 1 */
}/*** @brief  Erase sector.* @param  Add: Address of sector to be erased.* @retval 0 if operation is successful, MAL_FAIL else.*/
uint16_t MEM_If_Erase_FS(uint32_t Add)
{/* USER CODE BEGIN 2 */uint32_t PageError;/* Variable contains Flash operation status */HAL_StatusTypeDef status;FLASH_EraseInitTypeDef eraseinitstruct;eraseinitstruct.TypeErase = FLASH_TYPEERASE_PAGES;eraseinitstruct.PageAddress = Add;eraseinitstruct.NbPages = 1U;status = HAL_FLASHEx_Erase(&eraseinitstruct, &PageError);if (status != HAL_OK){return (USBD_FAIL);}return (USBD_OK);/* USER CODE END 2 */
}/*** @brief  Memory write routine.* @param  src: Pointer to the source buffer. Address to be written to.* @param  dest: Pointer to the destination buffer.* @param  Len: Number of data to be written (in bytes).* @retval USBD_OK if operation is successful, MAL_FAIL else.*/
uint16_t MEM_If_Write_FS(uint8_t *src, uint8_t *dest, uint32_t Len)
{/* USER CODE BEGIN 3 */uint32_t i = 0;for (i = 0; i < Len; i += 4){/* Device voltage range supposed to be [2.7V to 3.6V], the operation will* be done by byte */if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, (uint32_t) (dest + i),*(uint32_t *) (src + i)) == HAL_OK){/* Check the written value */if (*(uint32_t *) (src + i) != *(uint32_t *) (dest + i)){/* Flash content doesn't match SRAM content */return (USBD_FAIL);}}else{/* Error occurred while writing data in Flash memory */return (USBD_FAIL);}}return (USBD_OK);/* USER CODE END 3 */
}/*** @brief  Memory read routine.* @param  src: Pointer to the source buffer. Address to be written to.* @param  dest: Pointer to the destination buffer.* @param  Len: Number of data to be read (in bytes).* @retval Pointer to the physical address where data should be read.*/
uint8_t *MEM_If_Read_FS(uint8_t *src, uint8_t *dest, uint32_t Len)
{/* Return a valid address to avoid HardFault *//* USER CODE BEGIN 4 */uint32_t i = 0;uint8_t *psrc = src;for (i = 0; i < Len; i++){dest[i] = *psrc++;}/* Return a valid address to avoid HardFault */return (uint8_t *) (dest);/* USER CODE END 4 */
}/*** @brief  Get status routine* @param  Add: Address to be read from* @param  Cmd: Number of data to be read (in bytes)* @param  buffer: used for returning the time necessary for a program or an erase operation* @retval USBD_OK if operation is successful*/
uint16_t MEM_If_GetStatus_FS(uint32_t Add, uint8_t Cmd, uint8_t *buffer)
{/* USER CODE BEGIN 5 */switch (Cmd){case DFU_MEDIA_PROGRAM:buffer[1] = (uint8_t) FLASH_PROGRAM_TIME;buffer[2] = (uint8_t) (FLASH_PROGRAM_TIME << 8);buffer[3] = 0;break;case DFU_MEDIA_ERASE:default:buffer[1] = (uint8_t) FLASH_ERASE_TIME;buffer[2] = (uint8_t) (FLASH_ERASE_TIME << 8);buffer[3] = 0;break;}return (USBD_OK);/* USER CODE END 5 */
}/* USER CODE BEGIN PRIVATE_FUNCTIONS_IMPLEMENTATION *//* USER CODE END PRIVATE_FUNCTIONS_IMPLEMENTATION *//*** @}*//*** @}*//************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

⑧修改KEIL工程（修改main.c）

/* USER CODE BEGIN Header */
/********************************************************************************* @file           : main.c* @brief          : Main program body******************************************************************************* @attention** 
© Copyright (c) 2022 STMicroelectronics.* All rights reserved.
** 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 "main.h"
#include "usb_device.h"
#include "gpio.h"/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes *//* USER CODE END Includes *//* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
typedef  void (*pFunction)(void);
/* USER CODE END PTD *//* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD *//* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM *//* USER CODE END PM *//* Private variables ---------------------------------------------------------*//* USER CODE BEGIN PV *//* USER CODE END PV *//* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP *//* USER CODE END PFP *//* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 *//* USER CODE END 0 *//*** @brief  The application entry point.* @retval int*/
int main(void)
{/* USER CODE BEGIN 1 */pFunction JumpToApplication;uint32_t JumpAddress;/* USER CODE END 1 *//* MCU Configuration--------------------------------------------------------*//* Reset of all peripherals, Initializes the Flash interface and the Systick. */HAL_Init();/* USER CODE BEGIN Init *//* USER CODE END Init *//* Configure the system clock */SystemClock_Config();/* USER CODE BEGIN SysInit *//* USER CODE END SysInit *//* Initialize all configured peripherals */MX_GPIO_Init();if (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_0) == GPIO_PIN_RESET){/* Test if user code is programmed starting from address 0x08007000 */if (((*(__IO uint32_t *) USBD_DFU_APP_DEFAULT_ADD) & 0x2FFFB000) == 0x20000000){/* Jump to user application */JumpAddress = *(__IO uint32_t *) (USBD_DFU_APP_DEFAULT_ADD + 4);JumpToApplication = (pFunction) JumpAddress;/* Initialize user application's Stack Pointer */__set_MSP(*(__IO uint32_t *) USBD_DFU_APP_DEFAULT_ADD);JumpToApplication();}}MX_USB_DEVICE_Init();/* USER CODE BEGIN 2 *//* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while (1){/* USER CODE END WHILE *//* USER CODE BEGIN 3 */}/* USER CODE END 3 */
}/*** @brief System Clock Configuration* @retval None*/
void SystemClock_Config(void)
{RCC_OscInitTypeDef RCC_OscInitStruct = {0};RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};/** Initializes the RCC Oscillators according to the specified parameters* in the RCC_OscInitTypeDef structure.*/RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;RCC_OscInitStruct.HSEState = RCC_HSE_ON;RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;RCC_OscInitStruct.HSIState = RCC_HSI_ON;RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;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;RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK){Error_Handler();}PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USB;PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_PLL_DIV1_5;if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK){Error_Handler();}
}/* USER CODE BEGIN 4 *//* USER CODE END 4 *//*** @brief  This function is executed in case of error occurrence.* @retval None*/
void Error_Handler(void)
{/* USER CODE BEGIN Error_Handler_Debug *//* User can add his own implementation to report the HAL error return state */__disable_irq();while (1){}/* USER CODE END Error_Handler_Debug */
}#ifdef  USE_FULL_ASSERT
/*** @brief  Reports the name of the source file and the source line number*         where the assert_param error has occurred.* @param  file: pointer to the source file name* @param  line: assert_param error line source number* @retval None*/
void assert_failed(uint8_t *file, uint32_t line)
{/* USER CODE BEGIN 6 *//* User can add his own implementation to report the file name and line number,ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) *//* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT *//************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

⑨移植完成，可以使用DfuSeDemo软件愉快的升级APP程序了