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Honored Contributor

12 years ago

USB Example

Hello all, I am using the stratix IV DE4 development board and am having some troubles with the USB example project shipped on the CD, the usb chip is the isp1761. The project compiles ...

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Honored Contributor

12 years ago

After adding# define DEBUG_USB_PORT which prints some more debug msgs i now get this.

PTD Write Header:

DW0=2020 0041h

DW1=0000 0800h

DW2=1001 8000h

DW3=8180 0000h

DW4=0000 0000h

DW5=0000 0000h

DW6=0000 0000h

DW7=0000 0000h

PTD Write Header:

DW0=16D0 0041h

DW1=79E6 45B0h

DW2=0001 8000h

DW3=8200 0000h

DW4=0000 0000h

DW5=0000 0000h

DW6=0000 0000h

DW7=0000 0000h

[PORT_ERR]done map 0h(timeout=0.000sec)

[PORT_ERR][ERR]AltOut Error!!!!!!!!!!!!!!!!

[PROTOCOL_ERR]USB_ControlRequest->error

[PROTOCOL_ERR]Get Device Descriptor fail, DeviceAddr=48879

[HUB_ERR]Get hub descriptor fail

Failed to start USB Hub