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speed of USB3.0 by streamer
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speed of USB3.0 by streamer

dekui posted on 16 May 2012 11:12 PM PST
Member
10 Forum Posts

 Hi!

I use streamer to read data from USB bord(3014). if I select 256 packets per xfer the speed can arrive at 320MBps. however after I detect the data I found that I lost some data. but if I select 8 packets or smaller the speed can arrive at 260MBps. but I can receive all the data. 

So I want to ask that why I lost data with the larger number of packets per xfer.

many thanks!

dekui 




Re: speed of USB3.0 by streamer

aasi posted on 18 May 2012 10:20 PM PST
Cypress Employee
1073 Forum Posts

What is the endpoint type being tested?

How are you checking the data loss i.e. are you dumping it to a file and checking or are you observing it in CATC and checking?

Regards,

Anand



Re: speed of USB3.0 by streamer

Alian posted on 23 Jul 2012 11:32 PM PST
Member
7 Forum Posts

I am testing  the speed of usb3.0 in the streamer.when I set packets per xfer = 256 ,the failure=1,why?You can get it from img.






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