blob: aa5135d364945aae1b50483eb022322d16499c7a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<title>DAP_SWJ_Pins</title>
<title>CMSIS-DAP: DAP_SWJ_Pins</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="cmsis.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<script type="text/javascript" src="printComponentTabs.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript">
$(document).ready(initResizable);
$(window).load(resizeHeight);
</script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
$(document).ready(function() { searchBox.OnSelectItem(0); });
</script>
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 46px;">
<td id="projectlogo"><img alt="Logo" src="CMSIS_Logo_Final.png"/></td>
<td style="padding-left: 0.5em;">
<div id="projectname">CMSIS-DAP
 <span id="projectnumber">Version 2.0.0</span>
</div>
<div id="projectbrief">Interface Firmware for CoreSight Debug Access Port</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<div id="CMSISnav" class="tabs1">
<ul class="tablist">
<script type="text/javascript">
<!--
writeComponentTabs.call(this);
//-->
</script>
</ul>
</div>
<!-- Generated by Doxygen 1.8.6 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "search",false,'Search');
</script>
<div id="navrow1" class="tabs">
<ul class="tablist">
<li><a href="index.html"><span>Main Page</span></a></li>
<li><a href="pages.html"><span>Usage and Description</span></a></li>
<li><a href="modules.html"><span>Reference</span></a></li>
<li>
<div id="MSearchBox" class="MSearchBoxInactive">
<span class="left">
<img id="MSearchSelect" src="search/mag_sel.png"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
alt=""/>
<input type="text" id="MSearchField" value="Search" accesskey="S"
onfocus="searchBox.OnSearchFieldFocus(true)"
onblur="searchBox.OnSearchFieldFocus(false)"
onkeyup="searchBox.OnSearchFieldChange(event)"/>
</span><span class="right">
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
</span>
</div>
</li>
</ul>
</div>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
<div id="nav-sync" class="sync"></div>
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
$(document).ready(function(){initNavTree('group__DAP__SWJ__Pins.html','');});
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Groups</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Pages</a></div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<div class="header">
<div class="headertitle">
<div class="title">DAP_SWJ_Pins<div class="ingroups"><a class="el" href="group__DAP__swj__gr.html">Common SWD/JTAG Commands</a></div></div> </div>
</div><!--header-->
<div class="contents">
<p>Control and monitor SWD/JTAG Pins.
<a href="#details">More...</a></p>
<p>Control and monitor SWD/JTAG Pins. </p>
<p>The <b>DAP_SWJ_Pins Command</b> is used to monitor and control the I/O Pins including the nRESET Device reset line.</p>
<p>The <b>Pin Wait</b> time is useful in systems where the nRESET pin is implemented as open-drain output. After nRESET is de-asserted by the debugger, external circuit may still hold the target Device under reset for a time. Using the <b>Pin Wait</b> time, the debugger may monitor selected I/O Pins and wait until they the expected value appears or a timeout expires.</p>
<p><b>I/O Pin Mapping</b> for the fields <b>Pin Output</b>, <b>Pin Select</b>, and <b>Pin Input</b>:</p>
<ul>
<li>Bit 0: SWCLK/TCK</li>
<li>Bit 1: SWDIO/TMS</li>
<li>Bit 2: TDI</li>
<li>Bit 3: TDO</li>
<li>Bit 5: nTRST</li>
<li>Bit 7: nRESET</li>
</ul>
<p><b>DAP_SWJ_Pins Command</b>: </p>
<div class="fragment"><div class="line">| BYTE | BYTE ******| BYTE ******| Word ****|</div>
<div class="line">> 0x10 | Pin Output | Pin Select | Pin Wait |</div>
<div class="line">|******|************|************|**********|</div>
</div><!-- fragment --><ul>
<li><b>Pin Output</b>: Value for selected output pins</li>
<li><b>Pin Select</b>: Selects which output pins will be modified</li>
<li><b>Pin Wait</b>: Wait timeout for the selected output to stabilize<ul>
<li>0 = no wait</li>
<li>1 .. 3000000 = time in µs (max 3s)</li>
</ul>
</li>
</ul>
<p><b>DAP_SWJ_Pins Response:</b> </p>
<div class="fragment"><div class="line">| BYTE | BYTE *****|</div>
<div class="line">< 0x10 | Pin Input |</div>
<div class="line">|******|***********|</div>
</div><!-- fragment --><ul>
<li><b>Pin Input</b>: Pin state read from target Device. </li>
</ul>
</div><!-- contents -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
<ul>
<li class="footer">Generated on Wed Jul 10 2019 15:20:28 for CMSIS-DAP Version 2.0.0 by Arm Ltd. All rights reserved.
<!--
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.6
-->
</li>
</ul>
</div>
</body>
</html>
|
