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    Navigation: All forums > Usb > Message List > Message Post

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    From: Jiang daosan <jiangdaosan@2...>
    Date: Sat, 30 Mar 2002 15:40:31 +0800
    Subject: [usb] some question about the code of the USB function core
    Top

    Hi,Rudi and all:
    
       I have some questions about the USB function core.
    The first is that how can I re-simulate the core as I cannot
    find anything in the dictory of bench. I want to learn how
    to get a full simulation about the core.
    
    The second is that I have seen some code in the module of the core
    like that following :
    
    always @(posedge clk)
    	clr_sof_time <= #1 frame_no_we;
                        ~~~~~ that means to assign the value after one unit time 
    
    In my opinion, to add one unit time delay in the code is to minimize
    the difference between the RTL simulation and the synthesized gate-level
    simulation. But that code may not be supported by the synthesis tools.
    Is that true ? How can I change the core into synthesisable ?
    
    Thanks for your answer.
    
    Best regards.
    
    
    Jiang daosan
    jiangdaosan@2...
    
    
    
    
    

    Follow upAuthor
    Re: [usb] some question about the code of the USB function coreRudolf Usselmann

     
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