blob: 424a22b85d29fd27899aa7e93765205aaf76de77 (
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
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
<!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_TI_TransferBlock</title>
<title>CMSIS-DAP: DAP_TI_TransferBlock</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 1.2.0 (Proposal)</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__TI__TransferBlock.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_TI_TransferBlock<div class="ingroups"><a class="el" href="group__DAP__TestInput__gr.html">Test Input Commands</a></div></div> </div>
</div><!--header-->
<div class="contents">
<p>Transfer the data that are recorded for various Test Input channels.
<a href="#details">More...</a></p>
<p>Transfer the data that are recorded for various Test Input channels. </p>
<p>The <b>DAP_TI_TransferBlock Command</b> initiates the data transfer of a single trace data block of the recorded trace data. The command delivers the content of one trace data block in the Trace Data Management system.</p>
<p><b>DAP_TI_TransferBlock Request:</b> </p>
<div class="fragment"><div class="line">| BYTE | BYTE *******|</div>
<div class="line">> 0x20 | DataRequest |</div>
<div class="line">|******|*************|</div>
</div><!-- fragment --><ul>
<li><b>DataRequest:</b> specifies the requested data from the Trace Data Management system.<ul>
<li><b>bit 0</b>: 1 = deliver one trace data block from any full trace data block (this includes SWO).</li>
<li><b>bit 1</b>: 1 = deliver one trace data block from SWO channel (even when partially filled).</li>
<li><b>bit 2</b>: 1 = deliver one trace data block from any partially filled trace data block (this includes SWO).</li>
</ul>
</li>
</ul>
<p><b>DAP_TI_TransferBlock Response:</b> </p>
<div class="fragment"><div class="line">| BYTE | BYTE ***| SHORT ****| WORD ********|+++++++++++++|</div>
<div class="line">< 0x20 | Channel | DataParms | TD_TimeStamp | ChannelData |</div>
<div class="line">|******|*********|<span class="comment">///////////|//////////////|+++++++++++++|</span></div>
</div><!-- fragment --><ul>
<li><b>Channel:</b> <ul>
<li><b>bit 0..3</b>: number of the channel that the data belong to.</li>
<li><b>bit 4</b>: SWO record indicator: 1 = data belong to SWO data recording.</li>
<li><b>bit 6</b>: First record indicator: 1 = DataParms and TimeStamp is transferred. 0 = Only ChannelData.</li>
<li><b>bit 7</b>: No data indicator: 1 = No ChannelData available for this request. 0 = ChannelData are available.</li>
</ul>
</li>
<li><b>DataParms:</b> parameters for ChannelData.<ul>
<li><b>bit 0..12</b>: number of data values in <b>ChannelData</b>. <a class="el" href="group__DAP__TI__TransferBlock.html">DAP_TI_TransferBlock</a> Response is repeated until all values are transmitted.</li>
<li><b>bit 14</b>: 1 = difference value format. 0 = contiguous value format.</li>
<li><b>bit 15</b>: 1 = Trace Data Management overflow since last <a class="el" href="group__DAP__TI__TransferBlock.html">DAP_TI_TransferBlock</a> Request. 0 = no overflow.</li>
</ul>
</li>
<li><b>TD_TimeStamp:</b> Test Domain Timer value at the read time of data values for ChannelData.</li>
<li><b>ChannelData:</b> data values from the recorded Test Input channel.</li>
</ul>
<p>The <b>ChannelData</b> reply has depending on <b>DataParms bit 14</b> two different formats. If <b>ChannelDiff</b> in <b>DAP_TI_Capture Request</b> is set for the specific channel, the Debug Unit may decide the data format depending on the trace data values.</p>
<p><b>Contiguous Value Format</b> transmits sequentially all data values stored in the trace data buffer. When <b>DataParms bit 14 = 0 </b> the <b>ChannelData</b> has the following format: </p>
<div class="fragment"><div class="line">|************|************|************|......</div>
<div class="line">| TraceValue | TraceValue | TraceValue |</div>
<div class="line">|************|************|************|......</div>
</div><!-- fragment --><p>The size of <b>TraceValue</b> depends on the data size for the channel (see <a class="el" href="group__DAP__TI__Info.html">DAP_TI_Info</a> Response, Attributes bit 0..2). <a class="el" href="group__DAP__TI__TransferBlock.html">DAP_TI_TransferBlock</a> Response is repeated until the number of <b>TraceValues</b> specified by <b>DataParms bit 0 .. 12</b> is transmitted.</p>
<p><b>Difference Value Format</b> transmits data values only when there is a significant difference. When <b>DataParms bit 14 = 1 </b> the <b>ChannelData</b> has the following format: </p>
<div class="fragment"><div class="line">|*************| SHORT *****|*************|......</div>
<div class="line">| TraceValue0 | ValueIndex | TraceValueI |</div>
<div class="line">|*************|<span class="comment">////////////|/////////////|......</span></div>
</div><!-- fragment --><ul>
<li><b>TraceValue0:</b> is the first data value on the trace data buffer</li>
<li><b>ValueIndex:</b> information about the next data value in TraceValueI.<ul>
<li><b>bit 0..12</b>: <b>index</b> in trace data buffer of next data value with significant difference.</li>
<li><b>bit 15</b>: 1 = last trace value of trace data buffer send by <a class="el" href="group__DAP__TI__TransferBlock.html">DAP_TI_TransferBlock</a> Response.</li>
</ul>
</li>
<li><b>TraceValueI:</b> is the trace data value in in trace data buffer referenced by <b>index</b>.</li>
</ul>
<p>The size of <b>TraceValue0</b> and <b>TraceValueI</b> depends on the data size for the channel (see <a class="el" href="group__DAP__TI__Info.html">DAP_TI_Info</a> Response, Attributes bit 0..2). <a class="el" href="group__DAP__TI__TransferBlock.html">DAP_TI_TransferBlock</a> Response is repeated until <b>ValueIndex</b> with <b>bit 15 = 1</b> is transmitted.</p>
<dl class="section note"><dt>Note</dt><dd>When all data values in the trace buffer are identical, <b>ValueIndex</b> is set to number of data values with bit 15 set to 1. </dd></dl>
</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 Thu Nov 16 2017 17:06:00 for CMSIS-DAP 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>
|
