CUBEMX STM32F105RB U盘读写详细教程

abin 42817001

打开cubemx软件，

2.选择单片机型号，本文选stm32f105rb

3.设置RCC，

4.设置时钟

1 根据开发板选外部晶振，一般是8Mhz。

2 选通外部晶振通道，由于ubs要使用48Mhz频率，内部频率无法提供

3工具单片机选择主频，

1 2 3步骤无先后顺序，

5.选择调试端口，这里使用UART2,可以根据需要选择其他的uart

6.配置USB顺序

检查usb时钟是否是48Mhz，一般软件会自动设置好。

Host 设置见usbh_conf.h 65-90行

7.设置PC9脚输出

由于本开发板的usb通过PC9低电平导通三极管给usb供电，所以要另外设置PC9脚，如与本板不同可忽略本步骤。

8.管脚布局查看

9.PROJECT配置

10.点击软件界面的右上角的产生代码，可能会出现一个警告窗口，不必理会，点YES

软件会自动生成KEIL需要的相关工程文件，点打开工程，然后就自动打开KEIL，

11.Keil 操作

12.Cubemx生成的main.c还不能直接使用，要定义变量回调函数 USB操作函数等

代码要保存在cubemx设定好的用户代码区域，如果硬件变动生成新代码，用户自定义的代码就会保留。

13.下面是main.c修改后的文件，红色部分是增加的内容，其他文件不需修改

/* USER CODE BEGIN Header */

/**

******************************************************************************

* @file : main.c

* @brief : Main program body

******************************************************************************

* @attention

* 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 "fatfs.h"

#include "usart.h"

#include "usb_host.h"

#include "gpio.h"

/* Private includes ----------------------------------------------------------*/

/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/

/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/

/* USER CODE BEGIN PD */

/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/

/* USER CODE BEGIN PM */

//定义PC9脚，如不需要可取消

#define USB_POWER_Pin GPIO_PIN_9

#define USB_POWER_GPIO_Port GPIOC

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/

void SystemClock_Config(void);

void MX_USB_HOST_Process(void);

/* USER CODE BEGIN PFP */

FATFS USBDISKFatFs; /* File system object for USB disk logical drive */

FIL MyFile; /* File object */

extern ApplicationTypeDef Appli_state;

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/

/* USER CODE BEGIN 0 */

//下面2个函数使能、禁止HCD_Port的回调函数，勿修改，必须

/**

* @brief Port Port Enabled callback.

* @param hhcd: HCD handle

* @retval None

void HAL_HCD_PortEnabled_Callback(HCD_HandleTypeDef *hhcd)

{

USBH_LL_PortEnabled(hhcd->pData);

}

/**

* @brief Port Port Disabled callback.

* @param hhcd: HCD handle

* @retval None

void HAL_HCD_PortDisabled_Callback(HCD_HandleTypeDef *hhcd)

{

USBH_LL_PortDisabled(hhcd->pData);

}

/**

* @brief Main routine for Mass Storage Class

* @param None

* @retval None

//下面函数操作USB 文件读写，可根据需要修改，函数名可自定义

void MSC_Application(void)

{

/* FatFs function common result code description: */

/* FR_OK = 0, (0) Succeeded */

/* FR_DISK_ERR, (1) A hard error occurred in the low level disk I/O layer */

/* FR_INT_ERR, (2) Assertion failed */

/* FR_NOT_READY, (3) The physical drive cannot work */

/* FR_NO_FILE, (4) Could not find the file */

/* FR_NO_PATH, (5) Could not find the path */

/* FR_INVALID_NAME, (6) The path name format is invalid */

/* FR_DENIED, (7) Access denied due to prohibited access or directory full */

/* FR_EXIST, (8) Access denied due to prohibited access */

/* FR_INVALID_OBJECT, (9) The file/directory object is invalid */

/* FR_WRITE_PROTECTED, (10) The physical drive is write protected */

/* FR_INVALID_DRIVE, (11) The logical drive number is invalid */

/* FR_NOT_ENABLED, (12) The volume has no work area */

/* FR_NO_FILESYSTEM, (13) There is no valid FAT volume */

/* FR_MKFS_ABORTED, (14) The f_mkfs() aborted due to any parameter error */

/* FR_TIMEOUT, (15) Could not get a grant to access the volume within defined period */

/* FR_LOCKED, (16) The operation is rejected according to thex file sharing policy */

/* FR_NOT_ENOUGH_CORE, (17) LFN working buffer could not be allocated */

/* FR_TOO_MANY_OPEN_FILES, (18) Number of open files > _FS_SHARE */

/* FR_INVALID_PARAMETER (19) Given parameter is invalid */

FRESULT res; /* FatFs function common result code */

uint32_t byteswritten, bytesread; /* File write/read counts */

uint8_t wtext[] = "Hello Test USB!"; /* File write buffer */

uint8_t rtext[100]; /* File read buffer */

/* Register the file system object to the FatFs module */

res = f_mount(&USBDISKFatFs, (TCHAR const*)USBHPath, 0);

if(res != FR_OK)

{

/* FatFs Initialization Error */

USBH_UsrLog("f_mount error: %d", res);

Error_Handler();

}

USBH_UsrLog("create the file in: %s", USBHPath);

/* Create and Open a new text file object with write access */

res = f_open(&MyFile, "USBHost.txt", FA_CREATE_ALWAYS | FA_WRITE);

if(res != FR_OK)

{

/* 'hello.txt' file Open for write Error */

USBH_UsrLog("f_open with write access error: %d", res);

Error_Handler();

}

/* Write data to the text file */

res = f_write(&MyFile, wtext, sizeof(wtext), (void *)&byteswritten);

if((byteswritten == 0) || (res != FR_OK))

{

/* 'hello.txt' file Write or EOF Error */

USBH_UsrLog("file write or EOF error: %d", res);

Error_Handler();

}

/* Close the open text file */

f_close(&MyFile);

/* Open the text file object with read access */

res = f_open(&MyFile, "USBHost.txt", FA_READ);

if(res != FR_OK)

{

/* 'hello.txt' file Open for read Error */

USBH_UsrLog("f_open with read access error: %d", res);

Error_Handler();

}

/* Read data from the text file */

res = f_read(&MyFile, rtext, sizeof(rtext), (void *)&bytesread);

if((bytesread == 0) || (res != FR_OK))

{

/* 'hello.txt' file Read or EOF Error */

USBH_UsrLog("f_read error: %d", res);

Error_Handler();

}

/* Close the open text file */

f_close(&MyFile);

/* Compare read data with the expected data */

if((bytesread != byteswritten))

{

/* Read data is different from the expected data */

USBH_UsrLog("file doesn't match");

Error_Handler();

}

/* Success of the demo: no error occurrence */

USBH_UsrLog("USBHost.txt was created into the disk");

/* Unlink the USB disk I/O driver */

FATFS_UnLinkDriver(USBHPath);

}

/* USER CODE END 0 */

/**

* @brief The application entry point.

* @retval int

int main(void)

{

/* USER CODE BEGIN 1 */

/* 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();

MX_USART2_UART_Init();

MX_FATFS_Init();

MX_USB_HOST_Init();

/* USER CODE BEGIN 2 */

//拉低PC9，如无该设置可取消

HAL_GPIO_WritePin(USB_POWER_GPIO_Port, USB_POWER_Pin, GPIO_PIN_RESET);

/* USER CODE END 2 */

/* Infinite loop */

/* USER CODE BEGIN WHILE */

printf("STM32 start ok!\n");

while (1)

{

/* USER CODE END WHILE */

MX_USB_HOST_Process();

/* USER CODE BEGIN 3 */

//判断USB是否进入准备状态APPLICATION_READY

switch(Appli_state)

{

/**

* The generated code from STM32CubeMX has two "confusing" application states

* APPLICATION_START on HOST_USER_CONNECTION and APPLICATION_READY on HOST_USER_CLASS_ACTIVE.

* Any FatFs commands should be executed after APPLICATION_STATE_READY is reached."

case APPLICATION_READY:

printf("ready ok\n");

MSC_Application();

Appli_state = APPLICATION_IDLE;

break;

case APPLICATION_IDLE:

default:

break;

}

/* 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 CPU, AHB and APB busses clocks

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.Prediv1Source = RCC_PREDIV1_SOURCE_HSE;

RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;

RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;

RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;

RCC_OscInitStruct.PLL2.PLL2State = RCC_PLL_NONE;

if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)

{

Error_Handler();

}

/** 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_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_DIV3;

if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)

{

Error_Handler();

}

/** Configure the Systick interrupt time

__HAL_RCC_PLLI2S_ENABLE();

}

/* USER CODE BEGIN 4 */

//##############

//USB调试信息输出要用到printf，必须设置

//如果printf不能使用，需#include <stdio.h>，如使用UART1,则下面的huart2要改成huart1

/* fputc */

int fputc(int ch, FILE *f)

{

HAL_UART_Transmit(&huart2 , (uint8_t *)&ch, 1 , 0xffff);

while (huart2.gState != HAL_UART_STATE_READY);//Loop until the end of transmission 每个发送都值得优化

return ch;

}

/* 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 */

/* 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,

tex: 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****/

14.程序运行结果如下（启动后插上U盘，然后拔出U盘）。

由于FATFS系统版本不同，可能有些U盘无法识别。比如3.0 U盘

是MX_USB_HOST_Process(); 函数产生的信息
是 void MSC_Application(void) 输出的内容

15.网友介绍F407可以直接使用CUBEMX生成的文件，无需修改。使用F407的朋友可自行验证。

16.本文内容在STM32F105RB + cubemx5.4 + keilMDK5.2 + J-LINK V8.0调试通过。

17.本文由abin 42817001整理，

18.感谢 @厦门-电梯-窝瓜(892219846) @大拇指[em]IT(2571393392) 指点、解惑。

19.完成时间 2011.09 补充：日期有误，实为2019.09

cubemx+keil 源码下载地址 https://download.csdn.net/download/silno/11967893

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