Re: re[avr-chat] ad data between DS1302 and ATMEGA8

[microhead]

Hi Vince,

Many thanks for your answer, your right, there was my fault with expression.
But I found there also, that shift is not same as rotation. So now I
remaking code.

Best Regards Martin



Vincent Trouilliez wrote:
> 
>> Dears all, there is some fault in following procedure. Function returns
>> value, but with same number.
> 
>> data>>1;
> 
> That might be your problem: "data>>" shifts data but does NOT put the
> result back into data.
> The compiler probably optimizes this statement out, as it has no effect in
> practice.
> 
> What you probably wanted to do was:
> 
> data = data >> 1;
> 
> or in short form:
> 
> data >>= 1;
> 
> 
> 
> HTH,
> 
> --
> Vince
> 
> 
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> 
> 

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