利用STM USB固件库 单独实现多端点HID传输、Mouse 或Keypad均没有任何问题!
在实现双接口设备时总线挂起!!!!!
/* USB Configuration Descriptor */如下
/* All Descriptors (Configuration, Interface, Endpoint, Class, Vendor */
const u8 CustomHID_ConfigDescriptor[CUSTOMHID_SIZ_CONFIG_DESC] =
{
0x09, /* bLength: Configuation Descriptor size */
USB_CONFIGURATION_DESCRIPTOR_TYPE, /* bDescriptorType: Configuration */
CUSTOMHID_SIZ_CONFIG_DESC, /* wTotalLength: Bytes returned */
0x00,
0x02, /* bNumInterfaces: 2 interface */
0x01, /* bConfigurationValue: Configuration value */
0x00, /* iConfiguration: Index of string descriptor describing the configuration*/
0x80, /* bmAttributes: Bus powered */
0x32, /* MaxPower 100 mA: this current is used for detecting Vbus */
/************** Descriptor of Custom HID mouse interface ****************/
/* 09 */
0x09, /* bLength: Interface Descriptor size */
USB_INTERFACE_DESCRIPTOR_TYPE,/* bDescriptorType: Interface descriptor type */
0x00, /* bInterfaceNumber: Number of Interface */
0x00, /* bAlternateSetting: Alternate setting */
0x02, /* bNumEndpoints */
0x03, /* bInterfaceClass: HID */
0x01, /* bInterfaceSubClass : 1=BOOT, 0=no boot */
0x02, /* nInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */
0, /* iInterface: Index of string descriptor */
/******************** Descriptor of Custom HID HID ********************/
/* 18 */
0x09, /* bLength: HID Descriptor size */
HID_DESCRIPTOR_TYPE, /* bDescriptorType: HID */
0x10, /* bcdHID: HID Class Spec release number */
0x01,
0x00, /* bCountryCode: Hardware target country */
0x01, /* bNumDescriptors: Number of HID class descriptors to follow */
0x22, /* bDescriptorType */
CUSTOMHID_SIZ_REPORT_Mouse_DESC,/* wItemLength: Total length of Report descriptor */
0x00,
/******************** Descriptor of Custom HID Mouse endpoints ******************/
/* 27 */
0x07, /* bLength: Endpoint Descriptor size */
USB_ENDPOINT_DESCRIPTOR_TYPE, /* bDescriptorType: */
0x81, /* bEndpointAddress: Endpoint Address (IN) */
0x03, /* bmAttributes: Interrupt endpoint */
0x05, /* wMaxPacketSize: 5 Bytes max */
0x00,
0x0A, /* bInterval: Polling Interval (10 ms) */
/* 34 */
/************** Descriptor of Custom HIDKeypad interface ****************/
0x09, /* bLength: Interface Descriptor size */
USB_INTERFACE_DESCRIPTOR_TYPE,/* bDescriptorType: Interface descriptor type */
0x01, /* bInterfaceNumber: Number of Interface */
0x00, /* bAlternateSetting: Alternate setting */
0x01, /* bNumEndpoints */
0x03, /* bInterfaceClass: HID */
0x01, /* bInterfaceSubClass : 1=BOOT, 0=no boot */
0x01, /* nInterfaceProtocol : 0=none, 1=keyboard, 2=mouse */
0, /* iInterface: Index of string descriptor */
/******************** Descriptor of Custom HID HID ********************/
/* 43 */
0x09, /* bLength: HID Descriptor size */
HID_DESCRIPTOR_TYPE, /* bDescriptorType: HID */
0x10, /* bcdHID: HID Class Spec release number */
0x01,
0x00, /* bCountryCode: Hardware target country */
0x01, /* bNumDescriptors: Number of HID class descriptors to follow */
0x22, /* bDescriptorType */
CUSTOMHID_SIZ_REPORT_Keypad_DESC,/* wItemLength: Total length of Report descriptor */
0x00,
/******************** Descriptor of Custom HID endpoints ******************/
/* 52*/
0x07, /* bLength: Endpoint Descriptor size */
USB_ENDPOINT_DESCRIPTOR_TYPE, /* bDescriptorType: */
0x82, /* bEndpointAddress: Endpoint Address (IN) */
0x03, /* bmAttributes: Interrupt endpoint */
0x08, /* wMaxPacketSize: 8 Bytes max */
0x00,
0x0a, /* bInterval: Polling Interval (10 ms) */
/*59 */
}; /* CustomHID_ConfigDescriptor */
在USB 协议分析仪测试发现在在取得字符串后又一次取得完整ConfigDescriptor 后总线就挂起了!!
实在找到不到原因所,问题还是在于没有完全搞懂USB固件库，请教各位高手指点!!!!
Email :gwb_2@163.com |
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