急，为什么我枚举不成功？

   我用D12开发Firmware,但是列举不成功，我监控了INTERRUPT REGISTER，ReadLastTransactionStatus，DCPDeviceRequest三个参数得如下数据，请帮忙看看出了什么问题。
INTERRUPT REGISTER=8000
INTERRUPT REGISTER=C000
ReadLastTransactionStatus=21
INTERRUPT REGISTER=100
bmRequestType=80,bRequest=6,wValue=1,wIndex=0,wLength=4000
INTERRUPT REGISTER=0
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=21
INTERRUPT REGISTER=4100
bmRequestType=0,bRequest=5,wValue=200,wIndex=0,wLength=0
INTERRUPT REGISTER=0
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=21
INTERRUPT REGISTER=100
bmRequestType=80,bRequest=6,wValue=1,wIndex=0,wLength=1200
INTERRUPT REGISTER=0
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=A1
ReadLastTransactionStatus=1
INTERRUPT REGISTER=300
bmRequestType=80,bRequest=6,wValue=2,wIndex=0,wLength=900
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=A1
INTERRUPT REGISTER=100
bmRequestType=80,bRequest=6,wValue=3,wIndex=0,wLength=FF00
INTERRUPT REGISTER=0
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=A1
INTERRUPT REGISTER=100
bmRequestType=80,bRequest=6,wValue=303,wIndex=904,wLength=FF00
INTERRUPT REGISTER=0
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=A1
ReadLastTransactionStatus=1
INTERRUPT REGISTER=300
bmRequestType=80,bRequest=6,wValue=2,wIndex=0,wLength=FF00
INTERRUPT REGISTER=0
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=1
INTERRUPT REGISTER=200
ReadLastTransactionStatus=41
ReadLastTransactionStatus=41
INTERRUPT REGISTER=300
INTERRUPT REGISTER=0
INTERRUPT REGISTER=4000
INTERRUPT REGISTER=0
ReadLastTransactionStatus=21
INTERRUPT REGISTER=100
bmRequestType=80,bRequest=6,wValue=1,wIndex=0,wLength=4000
INTERRUPT REGISTER=0
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=21
INTERRUPT REGISTER=4100
bmRequestType=0,bRequest=5,wValue=200,wIndex=0,wLength=0
INTERRUPT REGISTER=0
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=21
INTERRUPT REGISTER=100
bmRequestType=80,bRequest=6,wValue=1,wIndex=0,wLength=1200
INTERRUPT REGISTER=0
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=A1
ReadLastTransactionStatus=1
INTERRUPT REGISTER=300
bmRequestType=80,bRequest=6,wValue=2,wIndex=0,wLength=900
INTERRUPT REGISTER=0
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=A1
INTERRUPT REGISTER=100
bmRequestType=80,bRequest=6,wValue=3,wIndex=0,wLength=FF00
INTERRUPT REGISTER=0
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=A1
INTERRUPT REGISTER=100
bmRequestType=80,bRequest=6,wValue=303,wIndex=904,wLength=FF00
INTERRUPT REGISTER=0
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=A1
ReadLastTransactionStatus=1
INTERRUPT REGISTER=300
bmRequestType=80,bRequest=6,wValue=2,wIndex=0,wLength=FF00
INTERRUPT REGISTER=0
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=1
INTERRUPT REGISTER=200
ReadLastTransactionStatus=41
ReadLastTransactionStatus=41
INTERRUPT REGISTER=300
INTERRUPT REGISTER=0
INTERRUPT REGISTER=4000
ReadLastTransactionStatus=21
INTERRUPT REGISTER=100
bmRequestType=80,bRequest=6,wValue=1,wIndex=0,wLength=4000
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=21
INTERRUPT REGISTER=4100
bmRequestType=0,bRequest=5,wValue=200,wIndex=0,wLength=0
INTERRUPT REGISTER=0
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=21
INTERRUPT REGISTER=100
bmRequestType=80,bRequest=6,wValue=1,wIndex=0,wLength=1200
INTERRUPT REGISTER=0
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=A1
ReadLastTransactionStatus=1
INTERRUPT REGISTER=300
bmRequestType=80,bRequest=6,wValue=2,wIndex=0,wLength=900
INTERRUPT REGISTER=0
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=A1
INTERRUPT REGISTER=100
bmRequestType=80,bRequest=6,wValue=3,wIndex=0,wLength=FF00
INTERRUPT REGISTER=0
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=A1
INTERRUPT REGISTER=100
bmRequestType=80,bRequest=6,wValue=303,wIndex=904,wLength=FF00
INTERRUPT REGISTER=0
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=A1
ReadLastTransactionStatus=1
INTERRUPT REGISTER=300
bmRequestType=80,bRequest=6,wValue=2,wIndex=0,wLength=FF00
ReadLastTransactionStatus=41
INTERRUPT REGISTER=200
ReadLastTransactionStatus=1
INTERRUPT REGISTER=200
ReadLastTransactionStatus=41
ReadLastTransactionStatus=41
INTERRUPT REGISTER=300
INTERRUPT REGISTER=0
INTERRUPT REGISTER=8000
INTERRUPT REGISTER=0
数据到这就停止了输出，但列举没成功。
我已停留了好几天了，请各位大侠和斑竹帮帮我。

谢谢！

我没用dma方式，我只需块传输就可以了。

再问刘先生一下，你们的设备用D12的DMA吗，怎么实现的

请问你是怎样成功的。

谢谢JH.quand的大力帮助，我刚才已经枚举成功了。

应该是配置描述符不对：U8 bLength不对，接口描述符也不对啊

typedef struct _USB_CONFIGURATION_DESCRIPTOR {
    U8 bLength;
    U8 bDescriptorType;
    U16 wTotalLength;
    U8 bNumInterfaces;
    U8 bConfigurationValue;
    U8 iConfiguration;
    U8 bmAttributes;
    U8 MaxPower;
} USB_CONFIGURATION_DESCRIPTOR

sizeof(USB_CONFIGURATION_DESCRIPTOR)应该为9,但是软件得到的却是A,是不是有问题？

我收到的PC请求如下：
（收到）0x80,0x06,0x0001,0x0000,0x4000
   我返回（0x12,0x01,0x00,0x01,0x00,0x00,0x00,0x10,0x84,
         0x05,0x01,0x00,0x00,0x01,0x01,0x02,0x03,0x01 ）
（收到）0x00,0x05,0x0200,0x0000,0x0000
（收到）0x80,0x06,0x0001,0x0000,0x1200
   我返回（0x12,0x01,0x00,0x01,0x00,0x00,0x00,0x10,0x84,
         0x05,0x01,0x00,0x00,0x01,0x01,0x02,0x03,0x01）
（收到）0x80,0x06,0x0002,0x0000,0x0900
    我返回（0x0A,0x02,0x24,0x00,0x01,0x01,0x00,0x40,0x32）
（收到）0x80,0x06,0x0003,0x0000,0xff00
    我返回（0x04,0x03,0x09,0x04）
（收到）0x80,0x06,0x0303,0x0904,0xff00
    我返回（0x1A,0x03,0x30,0x00,0x30,0x00,0x30,0x00,0x30,
            0x00,0x30,0x00，0x30,0x00,0x30,0x00,0x30,0x00,
            0x30,0x00,0x30,0x00,0x30,0x00,0x30,0x00）
（收到）0x80,0x06,0x0002,0x0000,0xff00
     我返回 (0x0A,0x02,0x24,0x00,0x01,0x01,0x00,0x40,0x32,
          0x00,0x04,0x03,0x09,0x04,0x1A,0x03,0x50,0x00,0x68,
          0x00,0x69,0x00,0x6C,0x00,0x69,0x00,0x70,0x00,0x73,
          0x00,0x20,0x00,0x41,0x00,0x50,0x00)

然后pc重复三次就停止发送。


[编辑 -  12/10/01 作者： liuwen]

[编辑 -  12/10/01 作者： liuwen]

有没有收到获取配置描述符请求：08 06 02 00 00 00 09 00
若收到，应该描述符发送没问题
我也在做D12usb 设备，刚通过枚举，以后多交流，我的OICQ：28460399

另外我返回的DeviceDescr是:0x12,0x01,0x0001,0x00,0x00,0x00,0x10,0x8405,0x0100,0x01,
0x02,0x03,0x01这是philips的数据,有问题吗？

谢谢你的答复。
我有监控每次CONTROL OUT 中断后收到的请求命令，
......
INTERRUPT REGISTER=100
bmRequestType=80,bRequest=6,wValue=1,wIndex=0,wLength=4000
......
INTERRUPT REGISTER=4100
bmRequestType=0,bRequest=5,wValue=200,wIndex=0,wLength=0
......
INTERRUPT REGISTER=100
bmRequestType=80,bRequest=6,wValue=1,wIndex=0,wLength=1200
......
就是呀，我是参考了Philips的USB Mass Storage Device Evaluation Kit的Firmware,因我用的cpu是mc68vz328所以改动了一些，另外我发现pc重复三次后就停了,不知哪里出了问题。

你没有监控每次CONTROL OUT 中断后收到的请求命令吗，若能读到，就可知道枚举到那儿了
你自己写的FIRMWARE？还是用例程？