n class="comment">// Teensy 2.0</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#</span><span class="preprocessor">elif</span> <span class="preprocessor">defined</span><span class="preprocessor">(</span><span class="preprocessor">__AVR_ATmega32U4__</span><span class="preprocessor">)</span> <span class="preprocessor">&amp;&amp;