Re: [usb] I am desperate! Please give me a help on USB2.0!

["Vikas T Rao " <vikasraot@myw.ltindia.com>]

** Proprietary **

hi,

though i don't have much knowledge on 2.0, i will try to answer ur query since u r desperate. though my below answer doesn't deal into technicalities but might be useful.

how r u able to see the register flags? i think u r simulating the core. u r saying that the flag is set but still it's '0'. have u checked in simulation, whether ur setting of flag and still it's '0' appearing? check if reset is not causing the problem. try to see probe internal signals.

without testbench, how r u simulating?

write in detail about ur procedure/problem and probably someone can help much more.

Happy New Year to U too.

...Vikas.

>>> nihq@red.semi.ac.cn 01/11/03 03:29PM >>>
Dear expert:

     I am testing the USB2.0 core. But I met some problems.
    I have filled the endpoint registers and set UTMI interface
such as: usb_vbus_pad_i=1 and Line_state_pad_i in J states.
And I also give a reset to core with wishbone interface.
But the attached flag is still 0 which means it is unattached
and don't work. Please give me a help! 
    Due to the lack of test bench, I lost too much times!

Happy new year to every one.

Ni haiqiao
    
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