使用STM32CubeMX编写USB复合设备

只看该作者 · 2017-4-18 09:04

其实很简单搞了好久,怪ST呗,既没做到可读性增强,又搞到复杂了.目的先做一个CDC+MSC复合,就像STLink V2-1一样.
首先生成一个CDC工程并测试.

再用同样方法生成MSC,但是不要覆盖当前工程.因为木有分区和很多逻辑没实现,所以借助工具看看.

开始合并了,把CDC内容挪过来.

新建两个文件.

添加文件到Keil.

Keil的Include还要设置.然后编译测试,当然这个时候是不能用的.

修改CDC所用EP.

修改MSC所用EP.

编辑我们的复合头文件.复合用IAD.大概都是写在一起.
/* Define to prevent recursive inclusion -------------------------------------*/#ifndef __USBD_COMPOSITE_H#define __USBD_COMPOSITE_H#ifdef __cplusplusextern "C" {#endif/* Includes ------------------------------------------------------------------*/#include "usbd_msc.h"#include "usbd_cdc.h"#include "usbd_storage_if.h"#include "usbd_cdc_if.h"#define WBVAL(x) (x & 0xFF),((x >> 8) & 0xFF)#define DBVAL(x) (x & 0xFF),((x >> 8) & 0xFF),((x >> 16) & 0xFF),((x >> 24) & 0xFF)#define USBD_IAD_DESC_SIZE 0x08#define USBD_IAD_DESCRIPTOR_TYPE 0x0B#define USBD_CDC_FIRST_INTERFACE 0 /* CDC FirstInterface */#define USBD_CDC_INTERFACE_NUM 2 /* CDC Interface NUM */#define USBD_CDC_CMD_INTERFACE 0#define USBD_CDC_DATA_INTERFACE 1#define USBD_MSC_FIRST_INTERFACE 2 /* MSC FirstInterface */#define USBD_MSC_INTERFACE_NUM 1 /* MSC Interface NUM */#define USBD_MSC_INTERFACE 2#define MSC_INDATA_NUM (MSC_EPIN_ADDR & 0x0F)#define MSC_OUTDATA_NUM (MSC_EPOUT_ADDR & 0x0F)#define CDC_INDATA_NUM (CDC_IN_EP & 0x0F)#define CDC_OUTDATA_NUM (CDC_OUT_EP & 0x0F)#define CDC_OUTCMD_NUM (CDC_CMD_EP & 0x0F)#define USBD_COMPOSITE_DESC_SIZE (9 + 58 + 8 + 32 + 8)extern USBD_ClassTypeDef USBD_COMPOSITE;/*** @}*//*** @}*/#ifdef __cplusplus}#endif#endif /* __USBD_MSC_H *//*** @}*//*****************************END OF FILE****/然后写对应C文件,分别初始化各种.
#include "usbd_composite.h"#include "usbd_cdc.h"#include "usbd_msc.h"static USBD_CDC_HandleTypeDef *pCDCData;static USBD_MSC_BOT_HandleTypeDef *pMSCData;static uint8_t USBD_Composite_Init (USBD_HandleTypeDef *pdev,uint8_t cfgidx);static uint8_t USBD_Composite_DeInit (USBD_HandleTypeDef *pdev,uint8_t cfgidx);static uint8_t USBD_Composite_EP0_RxReady(USBD_HandleTypeDef *pdev);static uint8_t USBD_Composite_Setup (USBD_HandleTypeDef *pdev,USBD_SetupReqTypedef *req);static uint8_t USBD_Composite_DataIn (USBD_HandleTypeDef *pdev,uint8_t epnum);static uint8_t USBD_Composite_DataOut (USBD_HandleTypeDef *pdev,uint8_t epnum);static uint8_t *USBD_Composite_GetFSCfgDesc (uint16_t *length);static uint8_t *USBD_Composite_GetDeviceQualifierDescriptor (uint16_t *length);USBD_ClassTypeDef USBD_COMPOSITE ={USBD_Composite_Init,USBD_Composite_DeInit,USBD_Composite_Setup,NULL, /*EP0_TxSent*/USBD_Composite_EP0_RxReady,USBD_Composite_DataIn,USBD_Composite_DataOut,NULL,NULL,NULL,NULL,USBD_Composite_GetFSCfgDesc,NULL,USBD_Composite_GetDeviceQualifierDescriptor,};/* USB composite device Configuration Descriptor *//* All Descriptors (Configuration, Interface, Endpoint, Class, Vendor */__ALIGN_BEGIN uint8_t USBD_Composite_CfgFSDesc[USBD_COMPOSITE_DESC_SIZE] __ALIGN_END ={0x09, /* bLength: Configuation Descriptor size */USB_DESC_TYPE_CONFIGURATION, /* bDescriptorType: Configuration */WBVAL(USBD_COMPOSITE_DESC_SIZE),USBD_MAX_NUM_INTERFACES , /* bNumInterfaces: */0x01, /* bConfigurationValue: */0x04, /* iConfiguration: */0xC0, /* bmAttributes: */0x96, /* MaxPower 300 mA *//****************************CDC************************************//* Interface Association Descriptor */USBD_IAD_DESC_SIZE, // bLengthUSBD_IAD_DESCRIPTOR_TYPE, // bDescriptorTypeUSBD_CDC_FIRST_INTERFACE, // bFirstInterfaceUSBD_CDC_INTERFACE_NUM, // bInterfaceCount0x02, // bFunctionClass0x02, // bFunctionSubClass0x01, // bInterfaceProtocol0x04, // iFunction/*Interface Descriptor */0x09, /* bLength: Interface Descriptor size */USB_DESC_TYPE_INTERFACE, /* bDescriptorType: Interface *//* Interface descriptor type */USBD_CDC_CMD_INTERFACE, /* bInterfaceNumber: Number of Interface */0x00, /* bAlternateSetting: Alternate setting */0x01, /* bNumEndpoints: One endpoints used */0x02, /* bInterfaceClass: Communication Interface Class */0x02, /* bInterfaceSubClass: Abstract Control Model */0x01, /* bInterfaceProtocol: Common AT commands */0x01, /* iInterface: *//*Header Functional Descriptor*/0x05, /* bLength: Endpoint Descriptor size */0x24, /* bDescriptorType: CS_INTERFACE */0x00, /* bDescriptorSubtype: Header Func Desc */0x10, /* bcdCDC: spec release number */0x01,/*Call Management Functional Descriptor*/0x05, /* bFunctionLength */0x24, /* bDescriptorType: CS_INTERFACE */0x01, /* bDescriptorSubtype: Call Management Func Desc */0x00, /* bmCapabilities: D0+D1 */0x01, /* bDataInterface: 1 *//*ACM Functional Descriptor*/0x04, /* bFunctionLength */0x24, /* bDescriptorType: CS_INTERFACE */0x02, /* bDescriptorSubtype: Abstract Control Management desc */0x02, /* bmCapabilities *//*Union Functional Descriptor*/0x05, /* bFunctionLength */0x24, /* bDescriptorType: CS_INTERFACE */0x06, /* bDescriptorSubtype: Union func desc */USBD_CDC_CMD_INTERFACE, /* bMasterInterface: Communication class interface */USBD_CDC_DATA_INTERFACE, /* bSlaveInterface0: Data Class Interface *//*Endpoint 2 Descriptor*/0x07, /* bLength: Endpoint Descriptor size */USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */CDC_CMD_EP, /* bEndpointAddress */0x03, /* bmAttributes: Interrupt */LOBYTE(CDC_CMD_PACKET_SIZE), /* wMaxPacketSize: */HIBYTE(CDC_CMD_PACKET_SIZE),0x01, /* bInterval: *//*Data class interface descriptor*/0x09, /* bLength: Endpoint Descriptor size */USB_DESC_TYPE_INTERFACE, /* bDescriptorType: */USBD_CDC_DATA_INTERFACE, /* bInterfaceNumber: Number of Interface */0x00, /* bAlternateSetting: Alternate setting */0x02, /* bNumEndpoints: Two endpoints used */0x0A, /* bInterfaceClass: CDC */0x02, /* bInterfaceSubClass: */0x00, /* bInterfaceProtocol: */0x01, /* iInterface: *//*Endpoint OUT Descriptor*/0x07, /* bLength: Endpoint Descriptor size */USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */CDC_OUT_EP, /* bEndpointAddress */0x02, /* bmAttributes: Bulk */LOBYTE(CDC_DATA_FS_MAX_PACKET_SIZE), /* wMaxPacketSize: */HIBYTE(CDC_DATA_FS_MAX_PACKET_SIZE),0x01, /* bInterval: ignore for Bulk transfer *//*Endpoint IN Descriptor*/0x07, /* bLength: Endpoint Descriptor size */USB_DESC_TYPE_ENDPOINT, /* bDescriptorType: Endpoint */CDC_IN_EP, /* bEndpointAddress */0x02, /* bmAttributes: Bulk */LOBYTE(CDC_DATA_FS_MAX_PACKET_SIZE), /* wMaxPacketSize: */HIBYTE(CDC_DATA_FS_MAX_PACKET_SIZE),0x01, /* bInterval: ignore for Bulk transfer *//****************************MSC************************************//* Interface Association Descriptor */USBD_IAD_DESC_SIZE, // bLengthUSBD_IAD_DESCRIPTOR_TYPE, // bDescriptorTypeUSBD_MSC_FIRST_INTERFACE, // bFirstInterfaceUSBD_MSC_INTERFACE_NUM, // bInterfaceCount0x08, // bFunctionClass0x06, // bFunctionSubClass0x50, // bInterfaceProtocol0x05,/******************** Mass Storage interface ********************/0x09, /* bLength: Interface Descriptor size */USB_DESC_TYPE_INTERFACE, /* bDescriptorType: */USBD_MSC_INTERFACE, /* bInterfaceNumber: Number of Interface */0x00, /* bAlternateSetting: Alternate setting */0x02, /* bNumEndpoints*/0x08, /* bInterfaceClass: MSC Class */0x06, /* bInterfaceSubClass : SCSI transparent*/0x50, /* nInterfaceProtocol */0x05, /* iInterface: *//******************** Mass Storage Endpoints ********************/0x07, /*Endpoint descriptor length = 7*/0x05, /*Endpoint descriptor type */MSC_EPIN_ADDR, /*Endpoint address (IN, address 1) */0x02, /*Bulk endpoint type */LOBYTE(MSC_MAX_FS_PACKET),HIBYTE(MSC_MAX_FS_PACKET),0x01, /*Polling interval in milliseconds */0x07, /*Endpoint descriptor length = 7 */0x05, /*Endpoint descriptor type */MSC_EPOUT_ADDR, /*Endpoint address (OUT, address 1) */0x02, /*Bulk endpoint type */LOBYTE(MSC_MAX_FS_PACKET),HIBYTE(MSC_MAX_FS_PACKET),0x01, /*Polling interval in milliseconds*/};/* USB Standard Device Descriptor */__ALIGN_BEGIN uint8_t USBD_Composite_DeviceQualifierDesc[USB_LEN_DEV_QUALIFIER_DESC] __ALIGN_END ={USB_LEN_DEV_QUALIFIER_DESC,USB_DESC_TYPE_DEVICE_QUALIFIER,0x00,0x02,0x00,0x00,0x00,0x40,0x01,0x00,};/*** @brief USBD_Composite_Init* Initialize the Composite interface* @param pdev: device instance* @param cfgidx: Configuration index* @retval status*/static uint8_t USBD_Composite_Init (USBD_HandleTypeDef *pdev,uint8_t cfgidx){uint8_t res = 0;pdev->pUserData = &USBD_CDC_Interface_fops_FS;res += USBD_CDC.Init(pdev,cfgidx);pCDCData = pdev->pClassData;pdev->pUserData = &USBD_Storage_Interface_fops_FS;res += USBD_MSC.Init(pdev,cfgidx);pMSCData = pdev->pClassData;return res;}/*** @brief USBD_Composite_DeInit* DeInitilaize the Composite configuration* @param pdev: device instance* @param cfgidx: configuration index* @retval status*/static uint8_t USBD_Composite_DeInit (USBD_HandleTypeDef *pdev,uint8_t cfgidx){uint8_t res = 0;pdev->pClassData = pCDCData;pdev->pUserData = &USBD_CDC_Interface_fops_FS;res += USBD_CDC.DeInit(pdev,cfgidx);pdev->pClassData = pMSCData;pdev->pUserData = &USBD_Storage_Interface_fops_FS;res += USBD_MSC.DeInit(pdev,cfgidx);return res;}static uint8_t USBD_Composite_EP0_RxReady(USBD_HandleTypeDef *pdev){return USBD_CDC.EP0_RxReady(pdev);}/*** @brief USBD_Composite_Setup* Handle the Composite requests* @param pdev: device instance* @param req: USB request* @retval status*/static uint8_t USBD_Composite_Setup (USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req){switch (req->bmRequest & USB_REQ_RECIPIENT_MASK){case USB_REQ_RECIPIENT_INTERFACE:switch(req->wIndex){case USBD_CDC_DATA_INTERFACE:case USBD_CDC_CMD_INTERFACE:pdev->pClassData = pCDCData;pdev->pUserData = &USBD_CDC_Interface_fops_FS;return(USBD_CDC.Setup(pdev, req));case USBD_MSC_INTERFACE:pdev->pClassData = pMSCData;pdev->pUserData = &USBD_Storage_Interface_fops_FS;return(USBD_MSC.Setup (pdev, req));default:break;}break;case USB_REQ_RECIPIENT_ENDPOINT:switch(req->wIndex){case CDC_IN_EP:case CDC_OUT_EP:case CDC_CMD_EP:pdev->pClassData = pCDCData;pdev->pUserData = &USBD_CDC_Interface_fops_FS;return(USBD_CDC.Setup(pdev, req));case MSC_EPIN_ADDR:case MSC_EPOUT_ADDR:pdev->pClassData = pMSCData;pdev->pUserData = &USBD_Storage_Interface_fops_FS;return(USBD_MSC.Setup (pdev, req));default:break;}break;}return USBD_OK;}/*** @brief USBD_Composite_DataIn* handle data IN Stage* @param pdev: device instance* @param epnum: endpoint index* @retval status*/uint8_t USBD_Composite_DataIn (USBD_HandleTypeDef *pdev,uint8_t epnum){switch(epnum){case CDC_INDATA_NUM:pdev->pClassData = pCDCData;pdev->pUserData = &USBD_CDC_Interface_fops_FS;return(USBD_CDC.DataIn(pdev,epnum));case MSC_INDATA_NUM:pdev->pClassData = pMSCData;pdev->pUserData = &USBD_Storage_Interface_fops_FS;return(USBD_MSC.DataIn(pdev,epnum));default:break;}return USBD_FAIL;}/*** @brief USBD_Composite_DataOut* handle data OUT Stage* @param pdev: device instance* @param epnum: endpoint index* @retval status*/uint8_t USBD_Composite_DataOut (USBD_HandleTypeDef *pdev,uint8_t epnum){switch(epnum){case CDC_OUTDATA_NUM:case CDC_OUTCMD_NUM:pdev->pClassData = pCDCData;pdev->pUserData = &USBD_CDC_Interface_fops_FS;return(USBD_CDC.DataOut(pdev,epnum));case MSC_OUTDATA_NUM:pdev->pClassData = pMSCData;pdev->pUserData = &USBD_Storage_Interface_fops_FS;return(USBD_MSC.DataOut(pdev,epnum));default:break;}return USBD_FAIL;}/*** @brief USBD_Composite_GetHSCfgDesc* return configuration descriptor* @param length : pointer data length* @retval pointer to descriptor buffer*/uint8_t *USBD_Composite_GetFSCfgDesc (uint16_t *length){*length = sizeof (USBD_Composite_CfgFSDesc);return USBD_Composite_CfgFSDesc;}/*** @brief DeviceQualifierDescriptor* return Device Qualifier descriptor* @param length : pointer data length* @retval pointer to descriptor buffer*/uint8_t *USBD_Composite_GetDeviceQualifierDescriptor (uint16_t *length){*length = sizeof (USBD_Composite_DeviceQualifierDesc);return USBD_Composite_DeviceQualifierDesc;}/*** @}*//*** @}*//*** @}*/然后CDC的描述太任性了,改.

不然看文件吗根本不知道是什么玩意.接着修改usb_device.c

修改最大接口数.

因为是CDC 2个 + MSC 1个.然后如果还没有识别,修改Stack Size.

修改为IAD兼容.

复合成功:

程序:
USB 复合
后话:
如果电脑没驱动,请求助官网:http://www.st.com/en/development-tools/stsw-stm32102.html
思考:
如何复合多重HID呢?复合只是为了增加功能,并不能增加带宽.