Can you see the Configuration descriptors with usbview? If not, it may
be a more fundamental issue with the connection, since your Device
doesn't even receive an address, also.

On 11/7/06, Steve Ravet <Steve.Ravet@arm.com> wrote:
> I am working on my first USB/PIC project.  I have the PICDEM FSUSB demo
> board and have also built my own PCB.  I am trying to get the
> keyboard/mouse demo from microchip working.  This is the one that moves
> the mouse in a circle while sending "abcd" continuously.  It works on
> the demo board but not on mine.  I downloaded USBview and it tells me
> that my PCB is a low speed HID, while the same firmware on the demo
> board is properly recognized as a full speed HID.  I have checked with a
> voltmeter to see that the pullup is on the D+ line in both cases.  My
> project uses the 18F2455.  I have put the schematics online on my TWiki:
>
> http://www.diy-efi.org/twiki/bin/view.pl/Gmecm/UsbVpw
>
> There are a few bugs in this schematic which have been noted in the
> notes and fixed on my PCB.
>
> I ran USBview with both my board and the demo board connected and got
> somewhat different results:
>
> not working demo                      working demo
> ---------------------------------------------------------------
> Device Descriptor:                    Device Descriptor:
> bcdUSB: 0x0200                        bcdUSB: 0x0200
> bDeviceClass: 0x00                    bDeviceClass: 0x00
> bDeviceSubClass: 0x00                 bDeviceSubClass: 0x00
> bDeviceProtocol: 0x00                 bDeviceProtocol: 0x00
> bMaxPacketSize0: 0x08 (8)             bMaxPacketSize0: 0x08 (8)
> idVendor: 0x08DA                      idVendor: 0x08DA
> idProduct: 0xFF0C                     idProduct: 0xFF0C
> bcdDevice: 0x0001                     bcdDevice: 0x0001
> iManufacturer: 0x01                   iManufacturer: 0x01
> iProduct: 0x02                        iProduct: 0x02
> iSerialNumber: 0x00                   iSerialNumber: 0x00
> bNumConfigurations: 0x01              bNumConfigurations: 0x01
> ConnectionStatus: DeviceConnected     ConnectionStatus: DeviceConnected
> Current Config Value: 0x00            Current Config Value: 0x01
> Device Bus Speed: Low                 Device Bus Speed: Full
> Device Address: 0x00                  Device Address: 0x01
> Open Pipes: 0                         Open Pipes: 1
>
> I also posted to the microchip forum about this and got some
> suggestions, but I haven't found the problem yet.
>
> http://forum.microchip.com/tm.aspx?m=185797
>
> thanks for suggestions on how I can get this enumeration to work
> correctly,
>
> --steve
>
> -------------------
> Steve Ravet
> ARM
> steve.ravet@arm.com
>
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