USB3_FX StreamOut Throttle

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Anonymous
Not applicable

Hello,

   

Is it possible to throttle a streaming transfer from host to device?  In other words, can the device hold off the host?

   

Regards,

   

Rob

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3 Replies
Anonymous
Not applicable

Hi,

   

If you set NAK on your endpoint, it will throttle the transfer and make sure the host is informed about it.

   

Regards,

   

- Madhu Sudhan

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Anonymous
Not applicable

Hi Madhu

   

I have an FPGA hanging off the GPIF interface.  I'd like the FPGA to hold-off the host, if needed.  Is this possible?  How does one NAK on this interface?

   

Rob

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Anonymous
Not applicable

Hi,

   

You can have an interrupt (GPIO) from the FPGA to FX3. When FPGA asserts this interrupt pin, FX3 may set the NAK on the endpoint using the interrupt callback

   

Regards,

   

- Madhu Sudhan

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