[问答]

CDC+HID设备无法正常工作但主机可以正确读取描述符

问答对人有帮助，内容完整，我也想知道答案 0 我正在研究一种能够使用CDC和HID类与主机交谈的设备。单片机是PIC18F70J50。我还没有实现它作为一个复合设备（为此，我需要使用IAD描述符，据我的理解去）。我基本上已经采取了一个工作的CDC项目，并修改它，以便结合一个HID接口。从我在USBlyzer可以看到，HID鼠标是公认的。正确的，但不是CDC设备。然而，嗅探与HID鼠标的通信揭示了很多交易错误：我使用的是来自微芯片的CDC项目，并应用了必要的修改，所以我可能犯了一些错误。是否有完整的CDC + HID样本项目在那里，我可以作为参考？描述符：以上来自于百度翻译以下为原文 I'm working on a device capable of talking to the host using the CDC and the HID classes. The MCU is a PIC18F87J50. I'm not implementing it yet as a composite device (for this purpose I'd need to use IAD descriptors, as far as my understanding goes). I have basically taken a working CDC project and have modified it so as to incorporate an HID interface. From what I can see in USBlyzer, the HID mouse is recognized correctly, but not the CDC device. However, sniffing the communications with the HID mouse reveals a lot of transaction errors: I'm using a sample CDC project from Microchip and have applied the needed modifications, so it's possible I've made some mistakes. Are there full CDC+HID samples projects out there that I can use as reference? The descriptors: rom USB_DEV_DSC device_dsc= { sizeof(USB_DEV_DSC), // Size of this descriptor in bytes DSC_DEV, // DEVICE descriptor type 0x0200, // USB Spec Release Number in BCD format 0x00, // Class Code 0x00, // Subclass code 0x00, // Protocol code EP0_BUFF_SIZE, // Max packet size for EP0, see u*cfg.h 0x04D8, // Vendor ID PROD_ID, // Product ID: CDC RS-232 Emulation Demo 0x0001, // Device release number in BCD format 0x01, // Manufacturer string index 0x02, // Product string index 0x00, // Device serial number string index 0x01 // Number of possible configurations }; CFG01= { //Configuration Descriptor sizeof(USB_CFG_DSC), // Size of this descriptor in bytes DSC_CFG, // CONFIGURATION descriptor type sizeof(cfg01), // Total length of data for this cfg 3, // Number of interfaces in this cfg 1, // Index value of this configuration 0, // Configuration string index _DEFAULT \| _SELF, // Attributes, see udefs_std_dsc.h 50, // Max power consumption (2X mA) //Interface Descriptor sizeof(USB_INTF_DSC), // Size of this descriptor in bytes DSC_INTF, // INTERFACE descriptor type CDC_COMM_INTF_ID, // Interface Number 0, // Alternate Setting Number 1, // Number of endpoints in this intf COMM_INTF, // Class code ABSTRACT_CONTROL_MODEL, // Subclass code V25TER, // Protocol code 0, // Interface string index //CDC Class-Specific Descriptors sizeof(USB_CDC_HEADER_FN_DSC), //HEADER FUNCTIONAL DSC CS_INTERFACE, //MUST BE CS_INTERFACE DSC_FN_HEADER, 0x0110, sizeof(USB_CDC_ACM_FN_DSC), //ABSTRACT CONTROL MANAGEMENT FUNCTIONAL DSC CS_INTERFACE, DSC_FN_ACM, //DSC SUBTYPE : ABSTRACT CONTROL MANAGEMENT 0x02, sizeof(USB_CDC_UNION_FN_DSC), //UNION FUNCTIONAL DSC CS_INTERFACE, //MUST BE! DSC_FN_UNION, //SUBTYPE = UNION CDC_COMM_INTF_ID, //MASTER INTERFACE = 0 CDC_DATA_INTF_ID, //SLAVE INTERFACE = 1 sizeof(USB_CDC_CALL_MGT_FN_DSC), CS_INTERFACE, DSC_FN_CALL_MGT, 0x00, CDC_DATA_INTF_ID, //Endpoint Descriptor sizeof(USB_EP_DSC), DSC_EP, _EP01_IN, _INT, CDC_INT_EP_SIZE, 0x02, // ************************************************************************ // *************** C D C *********************** // *********************************************************************** //Interface Descriptor sizeof(USB_INTF_DSC), // Size of this descriptor in bytes DSC_INTF, // INTERFACE descriptor type CDC_DATA_INTF_ID, // Interface Number 0, // Alternate Setting Number 2, // Number of endpoints in this intf DATA_INTF, // Class code 0, // Subclass code NO_PROTOCOL, // Protocol code 0, // Interface string index //Endpoint Descriptors sizeof(USB_EP_DSC), DSC_EP, _EP02_OUT, _BULK, CDC_BULK_OUT_EP_SIZE, 0x00, sizeof(USB_EP_DSC), DSC_EP, _EP02_IN, _BULK, CDC_BULK_IN_EP_SIZE, 0x00, // ************************************************************************ // *************** H I D ************************ // ************************************************************************ //Interface Descriptor sizeof(USB_INTF_DSC), // Size of this descriptor in bytes DSC_INTF, // INTERFACE descriptor type HID_INTF_ID, // Interface Number 0, // Alternate Setting Number 1, // Number of endpoints in this intf HID_INTF, // Class code BOOT_INTF_SUBCLASS, // Subclass code HID_PROTOCOL_MOUSE, // Protocol code 0, // Interface string index //HID Class-Specific Descriptor sizeof(USB_HID_DSC), // Size of this descriptor in bytes DSC_HID, // HID descriptor type 0x0111, // HID Spec Release Number in BCD format 0x00, // Country Code (0x00 for Not supported) HID_NUM_OF_DSC, // Number of class descriptors, see u*cfg.h DSC_RPT, // Report descriptor type sizeof(hid_rpt01), // Size of the report descriptor //Endpoint Descriptor sizeof(USB_EP_DSC), DSC_EP, _EP03_IN, _INT, HID_INT_IN_EP_SIZE, 0x0A }; 0
2019-4-8 08:19:30　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × qun333 该类别下有 57 个回答。邀请回答技术发广告该类别下有 56 个回答。邀请回答 caoguiqun 该类别下有 56 个回答。邀请回答 psw30 该类别下有 44 个回答。邀请回答伊丹姿子该类别下有 41 个回答。邀请回答 uwufwjrw 该类别下有 39 个回答。邀请回答 hetao1111 该类别下有 38 个回答。邀请回答 lc123617 该类别下有 35 个回答。邀请回答欧阳大大该类别下有 32 个回答。邀请回答作死不止该类别下有 31 个回答。邀请回答 asd010 该类别下有 31 个回答。邀请回答 60user92 该类别下有 29 个回答。邀请回答 wy8719 该类别下有 29 个回答。邀请回答 haikitty 该类别下有 28 个回答。邀请回答 ju978779 该类别下有 28 个回答。邀请回答嘻嘻爱哈哈该类别下有 28 个回答。邀请回答 xiuzhen122 该类别下有 27 个回答。邀请回答 pol666 该类别下有 27 个回答。邀请回答 ueywyrsdfs 该类别下有 26 个回答。邀请回答 lhly23 该类别下有 25 个回答。邀请回答举报孙燕冉相关推荐 • 实现组合设备除了修改描述符还需要修改什么 2501 • STM32F4 USB主机HID问题 5110 • 配置描述符的最大功率不起作用 1855 • 将HID和CDC项目并到复合USB设备上时无法正常工作咋办 253 • USB HID设备枚举失败，返回STALL（请大侠们帮帮手，急） 5210 • 电脑重启后，但注册的HID设备没有重启，导致设备失效不能工作如何解决？ 674 • 基于STM32F407vet的板上生成了USB CDC主机应用程序，接口描述符在哪个文件中初始化？ 182 • USB设备同时用作CDC和HID时无法正常枚举怎么解决？ 1428 • 同一个usb3.0的设备，同是usb2.0的不同主机枚举得到的设备描述符为什么不同？ 684 • 设备描述符请求失败 7647 1个回答

答案对人有帮助，有参考价值 0 自从上一篇文章以来，我已经取得了一些进展。现在，复合设备已经被OS正确识别。串行设备和主机工作100%之间的通信。然而，主机无法接收来自鼠标设备的数据：会发生什么？UBCFG.H中的定义：新的描述符：以上来自于百度翻译以下为原文 I've made some progress since the last post. The composite device is now correctly recognized by OS. Communications between the serial device and the host work 100%. However, the host isn't being able to receive the data from the mouse device: What could be happening? Definitions in u**cfg.h: / CDC / #define CDC_COMM_INTF_ID 0x00 / USING IFACE 0 / #define CDC_COMM_UEP UEP1 / USING USB ENDPOINT 2 CONTROL REGISTER (THERE'S ONE PER ENDPOINT!)/ #define CDC_INT_BD_IN ep1Bi / ENDPOINT IN-BUFFER DESCRIPTOR 2 / #define CDC_INT_EP_SIZE 8 / BUFFER SIZE OF 8 BYTES / #define CDC_DATA_INTF_ID 0x01 / USING INTERFACE 1 / #define CDC_DATA_UEP UEP2 / USB ENDPOINT 3 CONTROL REG / #define CDC_BULK_BD_OUT ep2Bo / ENDPOINT 3 OUT-BUFFER DESCRIPTOR / #define CDC_BULK_OUT_EP_SIZE 64 / 64 BYTES / #define CDC_BULK_BD_IN ep2Bi / ENDPOINT 3 IN-BUFFER DESCRIPTOR / #define CDC_BULK_IN_EP_SIZE 64 / 64 BYTES TOO! / / HID / #define HID_INTF_ID 0x02 #define HID_UEP UEP3 #define HID_BD_OUT ep3Bo #define HID_INT_OUT_EP_SIZE 3 #define HID_BD_IN ep3Bi #define HID_INT_IN_EP_SIZE 3 #define HID_NUM_OF_DSC 1 #define HID_RPT01_SIZE 50 The new descriptors: / Device Descriptor / rom USB_DEV_DSC device_dsc= { sizeof(USB_DEV_DSC), // Size of this descriptor in bytes DSC_DEV, // DEVICE descriptor type 0x0200, // USB Spec Release Number in BCD format CLASS_CODE, // Class Code SUBCLASS_CODE, // Subclass code PROT_CODE, // Protocol code EP0_BUFF_SIZE, // Max packet size for EP0, see ucfg.h VENDOR_ID, // Vendor ID PROD_ID, // Product ID: CDC RS-232 Emulation Demo 0x0002, // Device release number in BCD format 0x01, // Manufacturer string index 0x02, // Product string index 0x00, // Device serial number string index 0x01 // Number of possible configurations }; CFG01= { //Configuration Descriptor sizeof(USB_CFG_DSC), // Size of this descriptor in bytes DSC_CFG, // CONFIGURATION descriptor type sizeof(cfg01), // Total length of data for this cfg 3, // Number of interfaces in this cfg 1, // Index value of this configuration 0, // Configuration string index _DEFAULT\|_SELF, // Attributes, see udefs_std_dsc.h 50, // Max power consumption (2X mA) // ************************************************************************* // *************** I A D ************************ // ************************************************************************ // Interface Association Descriptor 0x08, // Size of this descriptor in bytes 0x0B, // Interface association descriptor type CDC_COMM_INTF_ID, // First associated interface 2, // Number of contiguous associated interfaces COMM_INTF, // bInterfaceClass of the first interface ABSTRACT_CONTROL_MODEL, // bInterfaceSubClass of the first interface V25TER, // bInterfaceProtocol of the first interface 0x00, // Interface string index // *********************************************************************** // *************** C D C *********************** // ************************** CONTROL ******************************** //Interface Descriptor sizeof(USB_INTF_DSC), // Size of this descriptor in bytes DSC_INTF, // INTERFACE descriptor type CDC_COMM_INTF_ID, // Interface Number 0, // Alternate Setting Number 1, // Number of endpoints in this intf COMM_INTF, // Class code ABSTRACT_CONTROL_MODEL, // Subclass code V25TER, // Protocol code 0, // Interface string index //CDC Class-Specific Descriptors sizeof(USB_CDC_HEADER_FN_DSC), //HEADER FUNCTIONAL DSC CS_INTERFACE, //MUST BE CS_INTERFACE DSC_FN_HEADER, 0x0110, sizeof(USB_CDC_ACM_FN_DSC), //ABSTRACT CONTROL MANAGEMENT FUNCTIONAL DSC CS_INTERFACE, DSC_FN_ACM, //DSC SUBTYPE : ABSTRACT CONTROL MANAGEMENT 0x02, sizeof(USB_CDC_UNION_FN_DSC), //UNION FUNCTIONAL DSC CS_INTERFACE, //MUST BE! DSC_FN_UNION, //SUBTYPE = UNION CDC_COMM_INTF_ID, //MASTER INTERFACE = 0 CDC_DATA_INTF_ID, //SLAVE INTERFACE = 1 sizeof(USB_CDC_CALL_MGT_FN_DSC), CS_INTERFACE, DSC_FN_CALL_MGT, 0x00, CDC_DATA_INTF_ID, //Endpoint Descriptor sizeof(USB_EP_DSC), DSC_EP, _EP01_IN, _INT, CDC_INT_EP_SIZE, 0x02, // *********************************************************************** // *************** C D C *********************** // ************************** DATA *********************************** //Interface Descriptor sizeof(USB_INTF_DSC), // Size of this descriptor in bytes DSC_INTF, // INTERFACE descriptor type CDC_DATA_INTF_ID, // Interface Number 0, // Alternate Setting Number 2, // Number of endpoints in this intf DATA_INTF, // Class code 0, // Subclass code NO_PROTOCOL, // Protocol code 0, // Interface string index //Endpoint Descriptors sizeof(USB_EP_DSC), DSC_EP, _EP02_OUT, _BULK, CDC_BULK_OUT_EP_SIZE, 0x00, sizeof(USB_EP_DSC), DSC_EP, _EP02_IN, _BULK, CDC_BULK_IN_EP_SIZE, 0x00, // ************************************************************************ // *************** H I D ************************ // ************************************************************************ //Interface Descriptor sizeof(USB_INTF_DSC), // Size of this descriptor in bytes DSC_INTF, // INTERFACE descriptor type HID_INTF_ID, // Interface Number 0, // Alternate Setting Number 1, // Number of endpoints in this intf HID_INTF, // Class code BOOT_INTF_SUBCLASS, // Subclass code HID_PROTOCOL_MOUSE, // Protocol code 0, // Interface string index //HID Class-Specific Descriptor sizeof(USB_HID_DSC), // Size of this descriptor in bytes DSC_HID, // HID descriptor type 0x0111, // HID Spec Release Number in BCD format 0x00, // Country Code (0x00 for Not supported) HID_NUM_OF_DSC, // Number of class descriptors, see u*cfg.h DSC_RPT, // Report descriptor type sizeof(hid_rpt01), // Size of the report descriptor //Endpoint Descriptor sizeof(USB_EP_DSC), DSC_EP, _EP03_IN, _INT, HID_INT_IN_EP_SIZE, 0x0A };

2019-4-8 08:30:49 评论举报王成