我使用stm32F103RBT6,用来作一个读卡器。发现报告描述符的配置会影响产品的适应性。我开始时把报告描述符中的输入输出报告长度定义为64字节，基本上在所有电脑上都能正确识别，并能正确操作。但为了提高传传输速度，我把输入和输出的报告长度定义为280字节后，发现计算机都能识别，但有几台新的电脑虽然能识别，但不能正常读写。不知道是何原因。请高手解答，谢谢！！！源码如下：
/* Includes ------------------------------------------------------------------*/
#include "usb_lib.h"
#include "usb_desc.h"
#include "usb_config.h"
#include "hw_config.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Extern variables ----------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/* USB Standard Device Descriptor */
const u8 DeviceDescriptor[SIZ_DEVICE_DESC] =
{
0x12, /*bLength */
USB_DEVICE_DESCRIPTOR_TYPE, /*bDescriptorType*/
0x10, /*bcdUSB USB1.1 */
0x01,
0x00, /*bDeviceClass*/
0x00, /*bDeviceSubClass*/
0x00, /*bDeviceProtocol*/
0x40, /*bMaxPacketSize40*/
ID_VENDOR_L, /*idVendor (0x0483)这个是需要跟USB组织申请的ID号，表示厂商代号*/
ID_VENDOR_H,
ID_PRODUCT_L, /*idProduct = 0x1010该产品的编号，跟厂商编号一起配合使用，让主机注册该设备并加载相应的驱动程序*/
ID_PRODUCT_H,
0x00, /*bcdDevice rel. 1.00*/
0x01,
1, /*Index of string descriptor describing
manufacturer */
2, /*Index of string descriptor describing
product*/
3, /*Index of string descriptor describing the
device serial number */
0x01 /*bNumConfigurations*/
}
; /* DeviceDescriptor */
/* USB Configuration Descriptor */
/* All Descriptors (Configuration, Interface, Endpoint, Class, Vendor */
const u8 ConfigDescriptor[SIZ_CONFIG_DESC] =
{
0x09, /* bLength: Configuation Descriptor size */
USB_CONFIGURATION_DESCRIPTOR_TYPE, /* bDescriptorType: Configuration */
SIZ_CONFIG_DESC,
/* wTotalLength: Bytes returned */
0x00,
0x01, /*bNumInterfaces: 1 interface*/
0x01, /*bConfigurationValue: Configuration value*/
0x00, /*iConfiguration: Index of string descriptor describing
the configuration*/
0xA0, /*bmAttributes: 总线供电，支持远程唤醒 */
0xC8, /*MaxPower 400 mA: this current is used for detecting Vbus*/
/************** Descriptor of 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*/
0x00, /*bInterfaceSubClass : 1=BOOT, 0=no boot*/
0x00, /*nInterfaceProtocol : 0=none, 1=keyboard, 2=mouse*/
0, /*iInterface: Index of string descriptor*/
/******************** Descriptor of HID ********************/
/* 18 */
0x09, /*bLength: HID Descriptor size*/
HID_DESCRIPTOR_TYPE, /*bDescriptorType: HID*/
0x00, /*bcdHID: HID Class Spec release number*/
0x01,
0x00, /*bCountryCode: Hardware target country*/
0x01, /*bNumDescriptors: Number of HID class descriptors to follow*/
0x22, /*bDescriptorType*/
SIZ_REPORT_DESC,/*wItemLength: Total length of Report descriptor*/
0x00,
/******************** Descriptor of endpoint ********************/
/* 27 */
0x07, /*bLength: Endpoint Descriptor size*/
USB_ENDPOINT_DESCRIPTOR_TYPE, /*bDescriptorType:*/
0x81, /*bEndpointAddress: Endpoint Address (IN)*/
0x03, /*bmAttributes: Interrupt endpoint*/
SEND_BUFFER_SIZE_L, /*wMaxPacketSize: 280 Byte max */
SEND_BUFFER_SIZE_H,
0x0A, /*bInterval: Polling Interval (10 ms)*/
/* 34 */
/******************** Descriptor of endpoint ********************/
/* 27 */
0x07, /*bLength: Endpoint Descriptor size*/
USB_ENDPOINT_DESCRIPTOR_TYPE, /*bDescriptorType:*/
0x01, /*bEndpointAddress: Endpoint Address (OUT)*/
0x03, /*bmAttributes: Interrupt endpoint*/
REC_BUFFER_SIZE_L, /*wMaxPacketSize: 280 Byte max */
REC_BUFFER_SIZE_H,
0x0A, /*bInterval: Polling Interval (10 ms)*/
/* 34 */
}
; /* ConfigDescriptor */
const u8 ReportDescriptor[SIZ_REPORT_DESC] =
{
0x05, 0xFF, // USAGE_PAGE(User define) Device Use=USAGE_PAGE*255+USAGE=0xff*255+USAGE
0x09, 0x30, // USAGE(User define)
0xa1, 0x01, // COLLECTION (Application)
0x05, 0x01, // USAGE_PAGE(1)
0x19, 0x00, // USAGE_MINIMUM(0)
0x29, 0xFF, // USAGE_MAXIMUM(255)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0xFF, // LOGICAL_MAXIMUM (255)
0x75, 0x10, // REPORT_SIZE (16) (280 bytes=16*140 bits)
0x95, SEND_BUFFER_SIZE_REP, // REPORT_COUNT (140)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x05, 0x02, // USAGE_PAGE(2)
0x19, 0x00, // USAGE_MINIMUM (0)
0x29, 0xFF, // USAGE_MAXIMUM (255)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0xFF, // LOGICAL_MAXIMUM (255)
0x95, 0x10, // REPORT_COUNT (16) (280 bytes=16*140 bits)
0x75, REC_BUFFER_SIZE_REP, // REPORT_SIZE (140)
0x91, 0x02, // OUTPUT (Data,Var,Abs)
0xc0 // END_COLLECTION
}; /* ReportDescriptor */
/* USB String Descriptors (optional) */
const u8 StringLangID[SIZ_STRING_LANGID] =
{
SIZ_STRING_LANGID,
USB_STRING_DESCRIPTOR_TYPE,
0x09,
0x04
} |
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