$crc = crc16($a,     $a + 32, $crc);
   ...
   for ($adr = $startadr; $adr <= $endadr; $adr++) {

[download]
Fencepost error. Should be $a+31, or $addr < $endaddr. Whether this fixes your problem, I don't know.

In reply to Re: CRC off-by-one by Anonymous Monk
in thread CRC off-by-one by rlw

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