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FPGA -> FX2 USB2.0 bulk/isoc

Altera_Forum
Honored Contributor II
‎09-16-2009 01:59 PM
1,112 Views

Hello, 

 

Maybe this is not the correct place to post this question, but maybe someone here has worked wiht the FX2 of cypress. 

 

I have already implemented Bulk transfers input/output.  

 

I can transfer one image that was processed by my FPGA. 

 

Now I want to optimize my design, to transfer images in real time (25fps). 

 

My question is: 

 

Do I need to use Isochronous transfers?, 

 

In the application note 4053, cypress people said "Bulk endpoints can provide a greater maximun throughput than isochronous endpoints with a trade off that the bandwidth is not guaranteed"..."BULK DATA TRAFFIC CAN BECOME BURSTY WHEN THERE IS ADDITIONAL DATA TRAFFIC ON THE USB", 

 

If I do not have more USB peripherals, it will not be bursty, and can be faster?. 

 

 

Thank you. 

 

DABG
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