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<html> <head> <title></title> <meta content=""> <style type="text/css"> <!-- body{ background-image: url(bkgnd000.jpg); background-repeat: no-repeat; background-position: center top} .t0 { font-family: Arial, Helvetica, sans-serif; font-size: 30px; font-weight: bold; font-style: normal} .t1 { font-family: "Times New Roman", Times, serif; font-size: 16px; font-style: italic; font-weight: bold; color: #000000} .t2 { font-family: font-size: 12px; font-weight: normal; font-style: normal} .t3 { font-family: Arial, Helvetica, sans-serif; font-size: 12px; font-style: italic; color: #000000; } .t4 { font-family: "Times New Roman", Times, serif; font-size: 12px; font-style: italic; font-weight: normal; color: #808080} .t5 { font-family: Arial, Helvetica, sans-serif; font-size: 30px; font-weight: bold; font-style: normal; color: #EFEFEF} --> </style> <meta http-equiv="Content-Type" content="text/html;charset=windows-1252"></head> <body > <table width="100%" height="48" border="0" bgcolor="#000080" cellspacing="0" cellpadding="0"> <tr> <td valign="center"> <div class="t5">In-Circuit Debugger </div> </td> <td align="center" valign="center" width="120"> <a href="http://home.t-online.de/home/520054661375/stolz.de.be/icd/index.html"> <img src="back_blu.gif" border="0" onMouseover="this.height=32;" onMouseout="this.height=30;"> </a> <a href="http://home.t-online.de/home/520054661375/stolz.de.be/index.html"> <img src="gohome_b.gif" border="0" onMouseover="this.height=34;" onMouseout="this.height=32;"> </a> <a href="http://home.t-online.de/home/520054661375/stolz.de.be/icd/text02.html"> <img src="forward_.gif" border="0" onMouseover="this.height=32;" onMouseout="this.height=30;"> </a> </td> </tr> </table> <br> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td valign="center" width="24"> <img src="1rightar.gif" border="0"> </td> <td valign="top"> <div class="t0">1. Introduction </div> </td> </tr> </table> <table width="100%" border="0" cellspacing="0" cellpadding="10"> <tr> <td valign="top"> <span class="t2"><p style="text-align:justify;">Due to simplicity, there will be some restrictions... </p></span> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td valign="top" width="20"> <img src="2rightar.gif" border="0"> </td> <td valign="top">The target (the PIC you want to debug) and the ICD have to be powered with same voltage (+5V)<br> </td> </tr> <tr> <td valign="top" width="20"> <img src="2rightar.gif" border="0"> </td> <td valign="top">The target power can't be switch on/off by the ICD<br> </td> </tr> <tr> <td valign="top" width="20"> <img src="2rightar.gif" border="0"> </td> <td valign="top">If MCLR pin is weak-pulled up to Vdd at the target, this resistor has to be removed when the ICD is connected since our ICD isn't able to pull this pin to ground.<br> </td> </tr> <tr> <td valign="top" width="20"> <img src="2rightar.gif" border="0"> </td> <td valign="top">No blinking status LEDs :-(<br> </td> </tr> <tr> <td valign="top" width="20"> <img src="2rightar.gif" border="0"> </td> <td valign="top">No USB support :-(<br> </td> </tr> </table> <p style="text-align:justify;">I think a PCB is not needed for this circuit. Soldering the components to a *drilled hole board* should be good enough.<br>Additionally, an external power supply providing the programming voltage Vpp (about +13V) is needed.<br> </p> <br> <br>Here are the complete circuit schematics: </td> </tr> </table> <img src="schemati.gif" border="0"> <table width="100%" height="24" bgcolor="#000080" border="0" cellspacing="0" cellpadding="0"> <tr> <td align="right" valign="bottom" width="24"> <img src="window_n.gif"> </td> <td valign="bottom"> <img src="copyrigh.gif" border="0"> </td> <td align="right" valign="bottom"> <a href="http://stolz.de.be/"> <img src="url00000.gif" border="0"> </a> </td> <td align="center" valign="bottom" width="64"> <a href="http://home.t-online.de/home/520054661375/stolz.de.be/icd/index.html"><img src="back_blu.gif" height="16" border="0" onMouseover="this.height=20;" onMouseout="this.height=16;"></a> <a href="http://home.t-online.de/home/520054661375/stolz.de.be/index.html"><img src="gohome_b.gif" height="16" border="0" onMouseover="this.height=20;" onMouseout="this.height=16;"></a> <a href="http://home.t-online.de/home/520054661375/stolz.de.be/icd/text02.html"><img src="forward_.gif" height="16" border="0" onMouseover="this.height=20;" onMouseout="this.height=16;"></a> </td> </tr> </table> </body></html><!-- This document saved from http://home.t-online.de/home/520054661375/stolz.de.be/icd/text01.html -->⌨️ 快捷键说明
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