Trying to compute crc7

Kye

Hey guys, i've been trying to write a crc7 function, but mine seems to not work. Can anyone help out?

PRI computeCRC7(value)
 
  value <<= 24
 
  repeat 16
 
    value <-= 1
 
    CRC7 |= (value & 1)
 
    CRC7 <<= 1
 
    if(CRC7 & $80)
      CRC7 ^= $09
 
    CRC7 &= $7F     
 
VAR
 
  byte CRC7

Thanks, I'm not sure whats wrong...

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Nyamekye,

Post Edited (Kye) : 4/18/2009 1:43:11 PM GMT

Timothy D. Swieter

Kye -

Over a year ago there was a thread that I remember posting in about CRC8. There were some other useful links in there two. Here is the thread:

http://forums.parallax.com/showthread.php?p=696007

I hope this helps point you in the right direction.

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Timothy D. Swieter, E.I.
www.brilldea.com - Prop Blade, LED Painter, RGB LEDs, 3.0" LCD Composite video display, eProto for SunSPOT
www.tdswieter.com