http://forums.leaflabs.com/topic.php?id=102 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:09:23 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=102#post-612 Fri, 23 Jul 2010 23:23:45 +0000 poslathian 612@http://forums.leaflabs.com/ <p>oooh peek function, good idea. ouch, just missed the 0.0.6, well get it next time! </p> http://forums.leaflabs.com/topic.php?id=102#post-579 Mon, 19 Jul 2010 18:24:42 +0000 Feyr 579@http://forums.leaflabs.com/ <p>if i can suggest, a peek() fonction to the usb code that returns what's in the buffer without removing it could be useful. </p> <p>in the meantime, here's a readline function. it's crude but damn useful for debugging. maybe it will save someone digging in libmaple :)</p> <p>// todo: make a non-blocking version</p> <p>#include &lt;usb_callbacks.h&gt;</p> <p>// wait and block for a complete line<br /> uint32 readline(void* buf, uint32 len) {</p> <p> uint8 avail=SerialUSB.available();<br /> uint8 i;</p> <p> if (len &gt; avail) {<br /> len= avail;<br /> }</p> <p> SerialUSB.println(len);<br /> if (avail) {<br /> for (i=0;i&lt;len;i++) {<br /> if (vcomBufferRx[(recvBufOut+i)% VCOM_RX_EPSIZE] == 13) {</p> <p> return SerialUSB.read(buf,i+1);<br /> }<br /> }</p> <p> }</p> <p>} </p>