[En-Nut-Discussion] CRC32 Lib

[Alain M.]

Ok, I pologize.

I did look at the files, nore than a little :)

 > Are we talking about the same code?

I just got confused because there is and more then one version of each 
function and an extra .h.

:)
Alain


Moritz Struebe escreveu:
> Alain M. schrieb:
>> Moritz Struebe escreveu:
>>   
>>>> A slow but small variant could also be usefull for some embedded,
>>>>       
>> What I mean is another implementation completely: one that does not use 
>> a lookup table, and very little memory. Very often in embeddeds space is 
>> more important then speed.
>>   
> 
> Did you look at the code? Both solutions are implemented. :-)
> 
>>   
>>>> both block or incremental.
>>>>       
>> Block is just what you did. The whole bloc of data has to fit in memory 
>> at once and cpu will be used for as long as it takes.
>>   
> 
> Are we talking about the same code?
> 
>> Incremental is another aproach, where each byte is porcessed at a time, 
>> eg. as it is being transmitted. It has two advantages: no need to have 
>> memory for all the data and cpu is not blocked for so much time.
>>   
> 
> Yea, that's exactly what my code does. It's no big deal wrapping the 
> byte-wise solution in to a block-solution.
> 
>> Of course these are other implementations, but you might just have info 
>> about them somewhere, as you just researched the subject ;)
>>   
> 
> No didn't find anything suitable to my needs, making the lookuptable 
> optional and doing byte wise crc-calculations. - It's not like I can 
> load ~90K into ram to validate my Flash.
> 
> Morty
> 
> 
>> Alain
>>
>> _______________________________________________
>> http://lists.egnite.de/mailman/listinfo/en-nut-discussion
>>
>>   
> 
> _______________________________________________
> http://lists.egnite.de/mailman/listinfo/en-nut-discussion
> 
>