As an example, the string "0x0102" should become two bytes where the MSB byte is 0x01 and LSB byte is 0x02
$string =~ '0x0102';
$output = hex($string);
print($output);  # 258 (0x0102)

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Or did you want "\x01\x02": 

$string =~ '0x0102';
$output = pack('H*', substr($string, 2));
print($output);  # "\x01\x02"

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In reply to Re: converting ASCII hex into binary by ikegami
in thread converting ASCII hex into binary by gri6507

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