Hi,<br><br>    This function tried in the SB600.<br>    I had little modification &quot;src/pc80/i8254.c&quot;.<br>    Thanks<br><br>    Signed-off: Libra Li &lt;<a href="http://libra.li">libra.li</a>@<a href="http://technexion.com">technexion.com</a>&gt;<br>