>>> It's much better to synch to sharp falling edge

That was you stating that something is better (without qualification)

>> Once again, there is no inherently better approach,
>> so please stop making it sound like yours is.

Olin denies that that something is always better, and says you should 
not say so.

> Do you really want ME to adjust the sound? 

Yes, I think he does, because he is right.

>> ... What is better depends on various factors of the
>> design at hand. 

> That's true.

And you admit he's right. So why are you surprised he tells you to be 
less absolute?

That was just text analysis. Technically, there are at least 4 SPI 
variants, including sampling on the rising edge and sampling on the 
falling edge. A nice sharp falling edge might be good if it is the 
sampling edge, or might be useless when it is not (might, because some 
internal action might still occur on the non-active edge). So indeed 
"there is no inherently better approach", there are just approaches that 
are less bad in a particular situation.

-- 

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: www.voti.nl/hvu

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