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USB Superspeed Peripherals

Anonymous
Not applicable

Hello, may be you can help me

   

I use CYUSB3014 with FPGA bus 32 bits, 50 MHz, don't work correct Bulk In EndPoint.

   

All work good if i commit data buffer used PktEnd signal with 1-255 DWORDs (4 - 1020 byte). But if i use PktEnd signal for more data, USB Monitor write me USB device 'Surprisingly removed'.

   

If i don't use PktEnd signal USB device send data only than packed buffer full, each pack 16384 bytes, but if buffer not full does not send data.

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Anonymous
Not applicable

Hi Michael,

   

The USB Connection should not get affected because of the things on the GPIF. Are you using an AUTO or a Manual channel? Can you please adopt a manual channel for debugging purpose alone and trace the flow of the incoming data, by adding debug messages?

   

Regards,

   

-Madhu Sudhan

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