Re: suggestion

Scott,
    Would it be keying off the presence of ns? How would this work if I
wanted to use a variable? Would I use
    #(td ns);
Wouldn't that imply that s, ms, us, ns, ps, fs, etc. would all have to
be keywords?

-Ken

Scott Cranston wrote:
> What you really want is a way to specify time absolutely, correct?
> 
> Something like #(1ns) where the 1ns is not scaled.
> 
> That seems like a clearer way to do what you want.
> 
>    -- Scott
> 
> 
>>>>> -----Original Message-----
>>>>> From: owner-verilog-ams@eda.org 
>>>>> [mailto:owner-verilog-ams@eda.org] On Behalf Of Ken Kundert
>>>>> Sent: Tuesday, August 28, 2007 11:44 PM
>>>>> To: verilog-AMS LRM Committee
>>>>> Subject: suggestion
>>>>>
>>>>> All,
>>>>>    It would be very handy to have access to the `timescale 
>>>>> value from within a model so that we can write delays in 
>>>>> terms of time rather than ticks.
>>>>>
>>>>> Just to throw something out, say $tick returns the length 
>>>>> of a tick in seconds. Then one can use it in the digital 
>>>>> portion of the model as in the following example (a d 
>>>>> flip-flop that implements 1n of delay regardless of how 
>>>>> `timescale was specified) ...
>>>>>
>>>>>
>>>>> parameter real td = 1ns;
>>>>> ...
>>>>>
>>>>> always @(posedge clk) begin
>>>>>    q = #(td/$tick) d;
>>>>> end
>>>>>
>>>>> -Ken
>>>>>
>>>>> --
>>>>> This message has been scanned for viruses and dangerous 
>>>>> content by MailScanner, and is believed to be clean.
>>>>>
>>>>>
> 

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