Re: [Simulavr-devel] [patch #7034] display frequency in fool-proof way

[address@hidden]

On Wed Dec 23  2:39 , Klaus Rudolph  sent:

>Petr Hluzín schrieb:
>> 2009/12/22 Knut Schwichtenberg address@hidden>:
>>> In one of my previous projects I used a 2^22Hz crystal. The
>>> frequency is 4.194304MHz. So, if there is an alternative input with
>>> floating point is implemented 1Hz as the last digit is necessary.
>> 
>> The discussion is about diagnostic _output_ in main(). Parsing users'
>>  frequency input is not altered by my patches.
>> 
>
>The original implementation has no idea of frequencies. It simply uses
>relative values for all the members of one simulation set. It makes no
>difference to use the values 4, 8, 12 or a set of 4000000, 8000000,
>12000000. The unit is only in the users head, the values in the
>simulation are only relatives to the others.
>
>Using higher precision vars in the simulator only slows down the simulation.

A good point for single-cpu simulations.
Also, from 1 MHz up, there are exactly 1,000 different frequencies that can be
simulated.
Five significant figures should be enough.

>If you need the very slow trace output with accurate output in ns, us or
>other units you can also add a factor to calculate the relative
>simulation values to real world timing.

---
Michael Hennebry
address@hidden
"War is only a hobby."
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