Re: [usb] some question about the code of the USB function core

[Jiang daosan <jiangdaosan@21cn.com>]

Hi, rudi:

   Thank you so much for your kindness.

regards.

 Jiang daosan
            jiangdaosan@21cn.com

On 2002-03-31 20:15:00 you wrote:
>On Sunday 31 March 2002 07:14 pm, you wrote:
>> Hi, rudi:
>>
>....
>> >How about writing a test bench ???
>>
>>    Exactly I don't know how to write a good and full coverage testbench
>> now. That skill is what I want to learn. Can someone help me about that?
>> Any advice and papers are welcomed. Maybe I can have a try.   :)
>
>Take a look at :
>http://janick.bergeron.com/default.htm
>
>.....

>> Why did the delay in the code make debugging much easier ?
>> I don't understand what do you mean exactly. Could you explain that more
>> ? Thanks.
>
>Because all Flip Flop outputs change one time unit after the
>rising clock edge (synchronous that is, async set/reset still
>can change at any time). I find it easier to follow signals this
>way. It's a personal preference thing. You can write a perl
>script to remove all "#1" and it should still work ...
>
>rudi
>
>
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