Hi Pinus,

the second one... I knew it was one of the coefficents but not which.

But ok, that's not the polynomial I need. So I do have to implement myself.

Thank you all.

Am Sonntag, 11. Februar 2007 18:06 schrieb Pinus Alba:
> HI Helmut,
>
> It depends how much maths you know.  If you look at the zlib and other palm
> crcs they all use the same 32 bit coefficients.  The second 16 bit
> coefficent gives the polynomial.  From memory this is 0x1021, ie. the same
> as the xmodem polynomial
>
> generator polynomial (X^16 + X^12 + X^5 + 1)
>
> Try that polynomial.
>
> Regards,
>
> On 11/02/07, Helmut A. Bender <[EMAIL PROTECTED]> wrote:
> > Am Samstag, 10. Februar 2007 15:38 schrieb Aaron Ardiri:
> > > On 2/10/07, Helmut A. Bender <[EMAIL PROTECTED]> wrote:
> > > > Thanks, but no... thats the CRC32 of the zlib... I need to know the
> > > > polynomial of the included Crc16CalcBlock API...
> > >
> > > http://www.koders.com/c/fid8749525F1BD9303912F4DFBD3B01AE13A35604D5.asp
> > >x
> > >
> > > there you go; same site - but, the sources to POSE (palmos emulator).
> > > the routine is right there for you.
> >
> > Hm - I think I should look inti this site a bit deeper. :-)
> >
> > But it doesn't solve my problem, since there is only the table, but not
> > the
> > polynomial.
> >
> > Background: I have to implement a CRC-16 with a given polynomial. If it
> > were
> > the same as used in CRC16CalcBlock I could use that.
> >
> > Well, I'll see it as a exercise to implement it myself: :-)
> >
> > --
> > Mit freundlichen Grüßen
> > Helmut A. Bender
> >
> > Helmut Bender GmbH
> > 75203 Königsbach-Stein
> > Amtsgericht Mannheim HRB 501213
> > Geschäftsführer: Helmut A. Bender
> >
> > --
> > For information on using the PalmSource Developer Forums, or to
> > unsubscribe, please see http://www.palmos.com/dev/support/forums/

-- 
Mit freundlichen Grüßen
Helmut A. Bender

Helmut Bender GmbH
75203 Königsbach-Stein
Amtsgericht Mannheim HRB 501213
Geschäftsführer: Helmut A. Bender

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