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Refactor of oled driver
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 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<div id="projectname">CMSIS-SVD
 <span id="projectnumber">Version 1.10</span>
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<div id="projectbrief">CMSIS System View Description</div>
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<div class="title">CPU Section (New)<div class="ingroups"><a class="el" href="group__svd___format__1__1__gr.html">SVD Extension in Version 1.1</a></div></div> </div>
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<p>The CPU section describes the processor included in the microcontroller device. This section is mandatory if the SVD file shall be used for the device header file generation.</p>
<pre>
<span class="opt"><cpu></span>
<span class="mand"><name><em>cpuNameType</em><name>
<revision><em>revisionType</em><revision>
<endian><em>endianType</em><endian>
<mpuPresent><em>xs:boolean</em><mpuPresent>
<fpuPresent><em>xs:boolean</em><fpuPresent>
<vtorPresent><em>xs:boolean</em><vtorPresent>
<nvicPrioBits><em>scaledNonNegativeInteger</em><nvicPrioBits>
<vendorSystickConfig><em>xs:boolean</em><vendorSystickConfig></span>
<span class="opt"></cpu></span>
</pre><table class="cmtable" summary="CPU Section Elements">
<tr>
<th nowrap="nowrap">Element Name </th><th>Description </th><th>Type </th><th>Occurrence </th></tr>
<tr>
<td>name </td><td>The predefined tokens are:<ul>
<li><span class="XML-Token">CM0</span>: ARM Cortex-M0</li>
<li><span class="XML-Token">CM0PLUS</span>: ARM Cortex-M0+</li>
<li><span class="XML-Token">CM3</span>: ARM Cortex-M3</li>
<li><span class="XML-Token">CM4</span>: ARM Cortex-M4</li>
<li><span class="XML-Token">SC000</span>: ARM Secure Core SC000</li>
<li><span class="XML-Token">SC300</span>: ARM Secure Core SC300</li>
<li><span class="XML-Token">other</span>: other processor architectures </li>
</ul>
</td><td>cpuNameType </td><td>1..1 </td></tr>
<tr>
<td>revisionType </td><td>Defines the HW revision of the processor. The defined version format is <span class="XML-Token">r<em>N</em>p<em>M</em></span> (N,M = [0 - 9]). </td><td>revisionType </td><td>1..1 </td></tr>
<tr>
<td>endian </td><td>Defines the endianess of the processor being one of:<ul>
<li><span class="XML-Token">little</span>: little endian memory (least significant byte gets allocated at the lowest address).</li>
<li><span class="XML-Token">big</span>: byte invariant big endian data organization (most significant byte gets allocated at the lowest address).</li>
<li><span class="XML-Token">selectable</span>: little and big endian are configurable for the device and become active after the next reset.</li>
<li><span class="XML-Token">other</span>: the endianess is neither little nor big endian. </li>
</ul>
</td><td>endianType </td><td>1..1 </td></tr>
<tr>
<td>mpuPresent </td><td>Indicates that the processor is equipped with a memory protection unit (MPU). This tag is either set to <span class="XML-Token">true</span> or <span class="XML-Token">false</span>, <span class="XML-Token">1</span> or <span class="XML-Token">0</span>. </td><td>boolean </td><td>1..1 </td></tr>
<tr>
<td>fpuPresent </td><td>Indicates that the processor is equipped with a hardware floating point unit (FPU). Cortex-M4 is the only available Cortex-M processor with an optional FPU. This tag is either set to <span class="XML-Token">true</span> or <span class="XML-Token">false</span>, <span class="XML-Token">1</span> or <span class="XML-Token">0</span>. </td><td>boolean </td><td>1..1 </td></tr>
<tr>
<td>vtorPresent </td><td>This is an optional flag used for the Cortex-M0+ based devices only. It indicates whether the Vector Table Offset Register (VTOR) is implemented in the Cortex-M0+ device or not. This tag is either set to <span class="XML-Token">true</span> or <span class="XML-Token">false</span>, <span class="XML-Token">1</span> or <span class="XML-Token">0</span>. If it is not specified VTOR is assumed to be present. </td><td>boolean </td><td>1..1 </td></tr>
<tr>
<td>nvicPrioBits </td><td>Defines the number of bits that are available in the Nested Vectored Interrupt Controller (NVIC) for configuring the priority. </td><td>scaledNonNegativeInteger </td><td>1..1 </td></tr>
<tr>
<td>vendorSystickConfig </td><td>Indicates whether the processor implements a vendor-specific System Tick Timer. If <span class="XML-Token">false</span>, then the ARM defined System Tick Timer is available. If <span class="XML-Token">true</span>, then a vendor-specific System Tick Timer must be implemented. This tag is either set to <span class="XML-Token">true</span> or <span class="XML-Token">false</span>, <span class="XML-Token">1</span> or <span class="XML-Token">0</span>. </td><td>boolean </td><td>1..1 </td></tr>
</table>
<h1><a class="anchor" id="cpuSection_ex"></a>
Example:</h1>
<div class="fragment"><div class="line">...</div>
<div class="line"><cpu></div>
<div class="line"> <name>CM4</name> </div>
<div class="line"> <revision>r0p0</revision></div>
<div class="line"> <endian>little</endian></div>
<div class="line"> <mpuPresent><span class="keyword">true</span></mpuPresent></div>
<div class="line"> <fpuPresent><span class="keyword">true</span></fpuPresent></div>
<div class="line"> <nvicPrioBits>4</nvicPrioBits></div>
<div class="line"> <vendorSystickConfig><span class="keyword">false</span></vendorSystickConfig> </div>
<div class="line"></cpu> </div>
<div class="line">...</div>
</div><!-- fragment --><p>This example describes a Cortex-M4 core of HW revision r0p0, with fixed little endian memory scheme, including Memory Protection Unit and hardware Floating Point Unit. The Nested Vectored Interrupt Controller uses 4 bits for configuring the priority of an interrupt. It is equipped with the standard System Tick Timer as defined by ARM. </p>
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