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USB Low-Full-High Speed Peripherals

Anonymous
Not applicable

 the board connect to the power that pc found che chip very slow  , about 3 mins

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5 Replies
Anonymous
Not applicable

 Hello,

   

 

   

Can you please detail your problem. Sorry that I did not understand your problem well.

   

 

   

Regards,

   

Gayathri

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Anonymous
Not applicable

I'm sorry ...

   

 

   

 

   

after power-on PC recognize usb very slow.

   

about 3 minutes. 

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Anonymous
Not applicable

 Hello,

   

 

   

Can you please take a trace of the USB traffic using any of the USB bus analyzers (like CATC/ Ellysis, etc). Attach the same here so that we can analyze.

   

 

   

Regards,

   

Gayathri

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Anonymous
Not applicable

Thank for your reply!

   

 

   

If I have a USB bus analyzers ,I think I needn't  your help.

   

connect to the PC usb port ,computer found the device about 3 minutes later.

   


   

some quick,some slow,....

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Anonymous
Not applicable

Did you run eye diagram to see how good the signal quality of the USB interface of your board is??

   

Do you have a FX2LP DVK? Did you try connecting one to your PC to see if it is not a issue with your PC??

   

Did you try it in other PCs to isolate whether it is a PC issue??

   

Regards

   

Anand

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