USB学习笔记（5）STM32 USB库移植步骤

本文是将官网的USB驱动库文件移植到自己的工程里面，实现USB功能的具体移植步骤说明，实现Custom_HID功能。

1.先准备一个工程模板

获取工程：STM32F1-V1-工程模版提取码：p6rg

2.在STM32下载USB Driver工程

官网USB驱动固件库下载

百度云下载地址提取码：osk1

3.获取相关的USB driver文件

在下载的工程包里面，我们可以看到很多个相关工程，我们选取其中一个工程Custom_HID，然后获取和USB相关的文件出来：

获取文件: USB库文件整理提取码：62p2

4.导入工程并修改相关文件

先把获取到的USB文件导入工程模板，编译一遍，会发现很多报错，报错的大部分原因是因为从官网获取的USB文件里面由很多配置是根据官方的开发板写的代码，我们只需要把我们不需要的代码删除就好了。

USB的通讯是靠中断完成的，所以需要加入两个中断函数，我将它放在stm32f10x_it.c文件里面
```
  void USB_LP_CAN1_RX0_IRQHandler(void){USB_Istr();}void USBWakeUp_IRQHandler(void){}
```

修改文件hw_config.c/hw_config.h/platform_config.h，这三个文件基本都是官方开发板的硬件配置。

//hw_config.c

  /********************************************************************************* @file    hw_config.c* @author  MCD Application Team* @version V4.1.0* @date    26-May-2017* @brief   Hardware Configuration & Setup******************************************************************************* @attention** <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>** Redistribution and use in source and binary forms, with or without modification,* are permitted provided that the following conditions are met:*   1. Redistributions of source code must retain the above copyright notice,*      this list of conditions and the following disclaimer.*   2. Redistributions in binary form must reproduce the above copyright notice,*      this list of conditions and the following disclaimer in the documentation*      and/or other materials provided with the distribution.*   3. Neither the name of STMicroelectronics nor the names of its contributors*      may be used to endorse or promote products derived from this software*      without specific prior written permission.** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.********************************************************************************//* Includes ------------------------------------------------------------------*/#include "hw_config.h"#include "usb_lib.h"#include "usb_desc.h"#include "usb_pwr.h"/* Private typedef -----------------------------------------------------------*//* Private define ------------------------------------------------------------*//* Private macro -------------------------------------------------------------*//* Private variables ---------------------------------------------------------*//* Extern variables ----------------------------------------------------------*//* Private function prototypes -----------------------------------------------*/static void IntToUnicode (uint32_t value , uint8_t *pbuf , uint8_t len);/* Private functions ---------------------------------------------------------*//******************************************************************************** Function Name  : Set_System* Description    : Configures Main system clocks & power.* Input          : None.* Return         : None.*******************************************************************************/void Set_System(void){}/******************************************************************************** Function Name  : Set_USBClock* Description    : Configures USB Clock input (48MHz).* Input          : None.* Output         : None.* Return         : None.*******************************************************************************/void Set_USBClock(void){/* Select USBCLK source */RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_1Div5);/* Enable the USB clock */RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, ENABLE);}/******************************************************************************** Function Name  : Leave_LowPowerMode.* Description    : Restores system clocks and power while exiting suspend mode.* Input          : None.* Output         : None.* Return         : None.*******************************************************************************/void Leave_LowPowerMode(void){DEVICE_INFO *pInfo = &Device_Info;/* Set the device state to the correct state */if (pInfo->Current_Configuration != 0){/* Device configured */bDeviceState = CONFIGURED;}else {bDeviceState = ATTACHED;}/*Enable SystemCoreClock*/SystemInit();}/******************************************************************************** Function Name  : USB_Interrupts_Config.* Description    : Configures the USB interrupts.* Input          : None.* Output         : None.* Return         : None.*******************************************************************************/void USB_Interrupts_Config(void){NVIC_InitTypeDef NVIC_InitStructure; /* 2 bit for pre-emption priority, 2 bits for subpriority */NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);  /* Enable the USB interrupt */NVIC_InitStructure.NVIC_IRQChannel = USB_LP_CAN1_RX0_IRQn;NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;NVIC_Init(&NVIC_InitStructure);/* Enable the USB Wake-up interrupt */NVIC_InitStructure.NVIC_IRQChannel = USBWakeUp_IRQn;NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;NVIC_Init(&NVIC_InitStructure); }/******************************************************************************** Function Name  : Get_SerialNum.* Description    : Create the serial number string descriptor.* Input          : None.* Output         : None.* Return         : None.*******************************************************************************/void Get_SerialNum(void){uint32_t Device_Serial0, Device_Serial1, Device_Serial2;Device_Serial0 = *(uint32_t*)ID1;Device_Serial1 = *(uint32_t*)ID2;Device_Serial2 = *(uint32_t*)ID3;Device_Serial0 += Device_Serial2;if (Device_Serial0 != 0){IntToUnicode (Device_Serial0, &CustomHID_StringSerial[2] , 8);IntToUnicode (Device_Serial1, &CustomHID_StringSerial[18], 4);}}/******************************************************************************** Function Name  : HexToChar.* Description    : Convert Hex 32Bits value into char.* Input          : None.* Output         : None.* Return         : None.*******************************************************************************/static void IntToUnicode (uint32_t value , uint8_t *pbuf , uint8_t len){uint8_t idx = 0;for( idx = 0 ; idx < len ; idx ++){if( ((value >> 28)) < 0xA ){pbuf[ 2* idx] = (value >> 28) + '0';}else{pbuf[2* idx] = (value >> 28) + 'A' - 10; }value = value << 4;pbuf[ 2* idx + 1] = 0;}}/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

//platform_config.h

  /********************************************************************************* @file    platform_config.h* @author  MCD Application Team* @version V4.1.0* @date    26-May-2017* @brief   Evaluation board specific configuration file.******************************************************************************* @attention** <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>** Redistribution and use in source and binary forms, with or without modification,* are permitted provided that the following conditions are met:*   1. Redistributions of source code must retain the above copyright notice,*      this list of conditions and the following disclaimer.*   2. Redistributions in binary form must reproduce the above copyright notice,*      this list of conditions and the following disclaimer in the documentation*      and/or other materials provided with the distribution.*   3. Neither the name of STMicroelectronics nor the names of its contributors*      may be used to endorse or promote products derived from this software*      without specific prior written permission.** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.********************************************************************************//* Define to prevent recursive inclusion -------------------------------------*/#ifndef __PLATFORM_CONFIG_H#define __PLATFORM_CONFIG_H#include "stm32f10x.h"/* Exported types ------------------------------------------------------------*//* Exported constants --------------------------------------------------------*//* Define if Low power mode is enabled; it allows entering the device into STOP mode following USB Suspend event, and wakes up after the USB wakeupevent is received. *///#define USB_LOW_PWR_MGMT_SUPPORT/*Unique Devices IDs register set*/#define         ID1          (0x1FFFF7E8)#define         ID2          (0x1FFFF7EC)#define         ID3          (0x1FFFF7F0)#endif/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

修改usb_pwr.c 这个文件是电源管理部分，我们只需要屏蔽函数USB_Cable_Config(DISABLE); USB_Cable_Config(ENABLE); USB_Cable_Config()这函数硬件上下拉配置usb的通讯脚位，起到usb插入断开的作用，我的板子上没有这个，所以屏蔽就好了，大家根据自己的情况来配置。

修改usb_prop.c 这个文件有两个函数是对开发板硬件的配置处理函数，删掉相关代码。

  void CustomHID_SetConfiguration(void){if (pInformation->Current_Configuration != 0){/* Device configured */bDeviceState = CONFIGURED;}}void CustomHID_Status_In(void){  }

修改usb_endp.c 这文件是对应的端点处理函数，同样将关于开发板的代码删除。

  __IO uint8_t PrevXferComplete;void EP1_OUT_Callback(void){BitAction Led_State;/* Read received data (2 bytes) */  USB_SIL_Read(EP1_OUT, Receive_Buffer);SetEPRxStatus(ENDP1, EP_RX_VALID); }

再次编译文件，发现没有报错了，然后下载到开发板，连接电脑，发现usb找到了相关的驱动，这个说明我们已经移植成功了。
然后我们再观察Custom_HID这个原工程，发现它是一个用户自定义HID设备，可以设备（STM32）与主机（电脑）通讯的，主机可以向设备发送两个字节的数据，STM32可以收到，我们可以通过串口打印是否收到了数据，进一步证实我们的移值时OK的。

修改usb_endp.c
```
  void EP1_OUT_Callback(void){BitAction Led_State;/* Read received data (2 bytes) */  USB_SIL_Read(EP1_OUT, Receive_Buffer);SetEPRxStatus(ENDP1, EP_RX_VALID); printf("HID收到数据：%d %d\r\n",Receive_Buffer[0],Receive_Buffer[1]);}
```
可以下载Bus Hound工具下发数据，或者其他工具都行。这里我们发现通讯是正常，那么我们的移植是Ok的，后面我们可以通过这个工程修改部分代码，实现对应的功能：比分说USB鼠标，USB键盘，多媒体控制器等。

5. 最后的工程

获取工程：STM32F1-V2-导入USB文件提取码：hjk0

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USB学习笔记（5）STM32 USB库移植步骤

USB学习笔记（5）STM32 USB库移植步骤

1.先准备一个工程模板

2.在STM32下载USB Driver工程

3.获取相关的USB driver文件

4.导入工程并修改相关文件

5. 最后的工程

我的个人博客网址：一个点的频率希望大家关注一下，谢谢！！！

USB学习笔记（5）STM32 USB库移植步骤相关推荐

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USB学习笔记（5）STM32 USB库移植步骤

USB学习笔记（5）STM32 USB库移植步骤

1.先准备一个工程模板

2.在STM32下载USB Driver工程

3.获取相关的USB driver文件

4.导入工程并修改相关文件

5. 最后的工程

我的个人博客网址：一个点的频率 希望大家关注一下，谢谢！！！

USB学习笔记（5）STM32 USB库移植步骤相关推荐

最新文章

热门文章

我的个人博客网址：一个点的频率希望大家关注一下，谢谢！！！