USB 2.0 Function core asynchronous

Hello!

There is a problem with this IP which is asynchronous :
for example

"always (state or rx_valid or rx_active or rx_err
or pid_ACK or pid_TOKEN
	or pid_DATA)
   begin .....
"

I think it's possible to change this part of the code by
testing these
conditions on a falling edge of the clock...
Maybe I'm totally wrong...

Thanks for your help.
Best regards

David Bennetot
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http://www.usb.or
g/developers/docs/
http://www.usb.org

S.

>
>
> david.bennetotfr.thalesgroup.com wrote:  Hello!
>
> There is a problem with this IP which is asynchronous :
> for example
>
> "always (state or rx_valid or rx_active or rx_err
or pid_ACK or pid_TOKEN
> or pid_DATA)
> begin .....
> "
>
> I think it's possible to change this part of the code
by testing these
> conditions on a falling edge of the clock...
> Maybe I'm totally wrong...
>
> Thanks for your help.
> Best regards
>
> David Bennetot
> _______________________________________________
> http://
www.opencores.org/mailman/listinfo/usb
>
> Hi David,
>         Thanks for replying , i understood the problem,
 i thank you once
> again ,
>
>        finally can you suggest some sites so that i can
learn the conept
> of usb (i.e to get some basic idea) so that i can build
a code on
> my own ..
>
>
>   Have a good day,
>   bye
>   Rathnadeep
>
>
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