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46    <div id="projectname">CMSIS-Core (Cortex-M)
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130   <div class="headertitle"><div class="title">System Configuration Files system_&lt;Device&gt;.c and system_&lt;Device&gt;.h </div></div>
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133 <div class="textblock"><p><a class="anchor" id="md_src_core_system_files"></a> CMSIS-Core system configuration files provide as a minimum the functions for system initialization and clock configuration as described under <a class="el" href="group__system__init__gr.html">System and Clock Configuration</a>. The file names use naming convention <code>system_&lt;Device&gt;.h</code> and <code>system_&lt;Device&gt;.c</code>, where <code>&lt;Device&gt;</code> corresponds to the device name.</p>
134 <p><code>system_&lt;Device&gt;.h</code> file shall contain the prototypes for accessing the public functions and <code>system_&lt;Device&gt;.c</code> shall contain corresponding implementations.</p>
135 <p>The system configuration functions are device specific and need adaptation for the target device. The silicon vendor might expose other functions and configuration parameters such as XTAL, power configuration, etc.</p>
136 <p>Additional application-specific adaptations may be required in the initialization code and therefore the system configuration file shall be located in the application project. <a class="el" href="cmsis_files_dfps.html">Delivery in CMSIS-Packs</a> explains how this can be achieved when device support is provided in <a href="https://open-cmsis-pack.github.io/Open-CMSIS-Pack-Spec/main/html/index.html">CMSIS pack format</a>.</p>
137 <h1><a class="anchor" id="system_Device_sec"></a>
138 system_Device Template Files</h1>
139 <p>CMSIS-Core <a class="el" href="cmsis_device_files.html#cmsis_template_files">Device Template Files</a> include <code>system_Device.c</code> and <code>system_Device.h</code> files that can be used as a starting point for implementing device-specific system configuration files. </p>
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