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<div id="projectname">CMSIS
 <span id="projectnumber">Version 5.6.0</span>
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<div id="projectbrief">Software Interface Standard for Arm Cortex-based Microcontrollers</div>
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<div class="textblock"><p>The following table shows the overall high-level history of the various CMSIS releases. In addition, each CMSIS component has its own release history:</p>
<ul>
<li><a href="../../Core/html/core_revisionHistory.html"><b>CMSIS-Core (Cortex-M) Revision History</b></a></li>
<li><a href="../../Core_A/html/rev_histCoreA.html"><b>CMSIS-Core (Cortex-A) Revision History</b></a></li>
<li><a href="../../Driver/html/driver_revisionHistory.html"><b>Driver Revision History</b></a></li>
<li><a href="../../DSP/html/ChangeLog_pg.html"><b>DSP Revision History (Change Log)</b></a></li>
<li><a href="../../NN/html/ChangeLog_pg.html"><b>NN Revision History (Change Log)</b></a></li>
<li><a href="../../RTOS/html/rtos_revisionHistory.html"><b>RTOS v1 Revision History</b></a></li>
<li><a href="../../RTOS2/html/rtos_revisionHistory.html"><b>RTOS v2 Revision History</b></a></li>
<li><a href="../../Pack/html/pack_revisionHistory.html"><b>Pack Revision History</b></a></li>
<li><a href="../../SVD/html/svd_revisionHistory.html"><b>SVD Revision History</b></a></li>
<li><a href="../../DAP/html/dap_revisionHistory.html"><b>DAP Revision History</b></a></li>
<li><a href="../../Zone/html/zone_revisionHistory.html"><b>Zone Revision History</b></a></li>
</ul>
<table class="cmtable" summary="Revision History">
<tr>
<th>Version </th><th>Description </th></tr>
<tr>
<td>5.6.0 </td><td><ul>
<li>CMSIS-Core (Cortex-M) 5.3.0<ul>
<li>Added provisions for compiler-independent C startup code.</li>
</ul>
</li>
<li>CMSIS-Core (Cortex-A) 1.1.4<ul>
<li>Fixed __FPU_Enable.</li>
</ul>
</li>
<li>CMSIS-Driver 2.7.1<ul>
<li>Finalized WiFi Interface API 1.0.0</li>
</ul>
</li>
<li>CMSIS-DSP 1.7.0 (see revision history for details)<ul>
<li>New Neon versions of f32 functions</li>
<li>Compilation flags for FFTs</li>
</ul>
</li>
<li>CMSIS-NN 1.2.0 (unchanged)</li>
<li>CMSIS-RTOS 1.03 (unchanged)<ul>
<li>RTX 4.82.0 (see revision history for details)</li>
</ul>
</li>
<li>CMSIS-RTOS 2.1.3 (unchanged)<ul>
<li>RTX 5.5.1 (see revision history for details)</li>
</ul>
</li>
<li>CMSIS-Pack 1.6.0 (unchanged)</li>
<li>CMSIS-SVD 1.3.3 (unchanged)</li>
<li>CMSIS-DAP 2.0.0 (unchanged)</li>
<li>CMSIS-Zone 0.12.0 (preview)<ul>
<li>Completely reworked</li>
</ul>
</li>
<li>Devices<ul>
<li>Generalized C startup code for all Cortex-M family devices.</li>
<li>Updated Cortex-A memory regions and system configuration files.</li>
</ul>
</li>
<li>Utilities<ul>
<li>SVDConv 3.3.27</li>
<li>PackChk 1.3.82 (unchanged) </li>
</ul>
</li>
</ul>
</td></tr>
<tr>
<td>5.5.1 </td><td><ul>
<li>CMSIS-Core (Cortex-M) 5.2.1<ul>
<li>Fixed compilation issue in cmsis_armclang_ltm.h</li>
</ul>
</li>
<li>CMSIS-Core (Cortex-A) 1.1.3 (unchanged)</li>
<li>CMSIS-Driver 2.7.0 (unchanged)</li>
<li>CMSIS-DSP 1.6.0 (unchanged)</li>
<li>CMSIS-NN 1.1.0 (unchanged)</li>
<li>CMSIS-RTOS 2.1.3 (unchanged)<ul>
<li>RTX 5.5.0 (unchanged)</li>
</ul>
</li>
<li>CMSIS-Pack 1.6.0 (unchanged)</li>
<li>CMSIS-SVD 1.3.3 (unchanged)</li>
<li>CMSIS-DAP 2.0.0 (unchanged)</li>
<li>CMSIS-Zone 0.9.0 (unchanged) </li>
</ul>
</td></tr>
<tr>
<td>5.5.0 </td><td><ul>
<li>CMSIS-Core (Cortex-M) 5.2.0<ul>
<li>Reworked Stack/Heap configuration for ARM startup files.</li>
<li>Added Cortex-M35P device support.</li>
<li>Added generic Armv8.1-M Mainline device support.</li>
</ul>
</li>
<li>CMSIS-Core (Cortex-A) 1.1.3 Minor fixes.</li>
<li>CMSIS-DSP 1.6.0<ul>
<li>reworked DSP library source files<ul>
<li>added macro ARM_MATH_LOOPUNROLL</li>
<li>removed macro UNALIGNED_SUPPORT_DISABLE</li>
<li>added const-correctness</li>
<li>replaced SIMD pointer construct with memcopy solution</li>
<li>replaced macro combination "CMSIS_INLINE __STATIC_INLINE with "__STATIC_FORCEINLINE"</li>
</ul>
</li>
<li>reworked DSP library documentation</li>
<li>Changed DSP folder structure<ul>
<li>moved DSP libraries to ./DSP/Lib</li>
</ul>
</li>
<li>moved DSP libraries to folder ./DSP/Lib</li>
<li>ARM DSP Libraries are built with ARMCLANG</li>
<li>Added DSP Libraries Source variant</li>
</ul>
</li>
<li>CMSIS-NN 1.1.0 (unchanged)</li>
<li>CMSIS-Driver 2.7.0<ul>
<li>Added WiFi Interface API 1.0.0-beta</li>
<li>Added custom driver selection to simplify implementation of new CMSIS-Driver</li>
</ul>
</li>
<li>CMSIS-RTOS 2.1.3<ul>
<li>RTX 5.5.0 (see revision history)</li>
</ul>
</li>
<li>CMSIS-Pack 1.6.0</li>
<li>CMSIS-SVD 1.3.3 (unchanged)</li>
<li>CMSIS-DAP 2.0.0 (unchanged)</li>
<li>CMSIS-Zone 0.9.0 (Preview)</li>
<li>Devices<ul>
<li>Added Cortex-M35P and ARMv81MML device templates.</li>
<li>Fixed C-Startup Code for GCC (aligned with other compilers)<ul>
<li>Moved call to SystemInit before memory initialization.</li>
</ul>
</li>
</ul>
</li>
<li>Utilities<ul>
<li>SVDConv 3.3.25</li>
<li>PackChk 1.3.82 </li>
</ul>
</li>
</ul>
</td></tr>
<tr>
<td>5.4.0 </td><td><ul>
<li>CMSIS-Core (Cortex-M) 5.1.2 Minor fixes and slight enhancements, e.g. beta for Cortex-M1.</li>
<li>CMSIS-Core (Cortex-A) 1.1.2 Minor fixes.</li>
<li>CMSIS-Driver 2.6.0 (unchanged)</li>
<li>CMSIS-DSP 1.5.2 (unchanged)</li>
<li>CMSIS-NN 1.1.0 Added new math function (see revision history)</li>
<li>CMSIS-RTOS 2.1.3 Relaxed interrupt usage.<ul>
<li>RTX 5.4.0 (see revision history)</li>
</ul>
</li>
<li>CMSIS-Pack 1.5.0 (unchanged)</li>
<li>CMSIS-SVD 1.3.3 (unchanged)</li>
<li>CMSIS-DAP 2.0.0 (unchanged)</li>
<li>CMSIS-Zone 0.0.1 (unchanged) </li>
</ul>
</td></tr>
<tr>
<td>5.3.0 </td><td><ul>
<li>CMSIS-Core (Cortex-M) 5.1.1</li>
<li>CMSIS-Core (Cortex-A) 1.1.1</li>
<li>CMSIS-Driver 2.6.0 (unchanged)</li>
<li>CMSIS-DSP 1.5.2 (unchanged)</li>
<li>CMSIS-NN 1.0.0 Initial contribution of Neural Network Library.</li>
<li>CMSIS-RTOS 2.1.2 (unchanged)</li>
<li>CMSIS-Pack 1.5.0 (unchanged)</li>
<li>CMSIS-SVD 1.3.3 (unchanged)</li>
<li>CMSIS-DAP 2.0.0 Communication via WinUSB to achieve high-speed transfer rates.</li>
<li>CMSIS-Zone 0.0.1 (unchanged) </li>
</ul>
</td></tr>
<tr>
<td>5.2.0 </td><td><ul>
<li>CMSIS-Core (Cortex-M) 5.1.0 MPU functions for ARMv8-M, cmsis_iccarm.h replacing cmsis_iar.h</li>
<li>CMSIS-Core (Cortex-A) 1.1.0 cmsis_iccarm.h, additional physical timer access functions</li>
<li>CMSIS-Driver 2.6.0 Enhanced CAN and NAND driver interface.</li>
<li>CMSIS-DSP 1.5.2 Fixed diagnostics and moved SSAT/USST intrinsics to CMSIS-Core.</li>
<li>CMSIS-RTOS 2.1.2 Relaxed some ISR-callable restrictions.</li>
<li>CMSIS-Pack 1.5.0 (unchanged)</li>
<li>CMSIS-SVD 1.3.3 (unchanged)</li>
<li>CMSIS-DAP 1.2.0 (unchanged)</li>
<li>CMSIS-Zone 0.0.1 (unchanged) </li>
</ul>
</td></tr>
<tr>
<td>5.1.1 </td><td><ul>
<li>CMSIS-Core (Cortex-M) (unchanged)</li>
<li>CMSIS-Core (Cortex-A) (unchanged)</li>
<li>CMSIS-Driver 2.05 (unchanged)</li>
<li>CMSIS-DSP 1.5.2 (unchanged)</li>
<li>CMSIS-RTOS 2.1.1 Fixed RTX5 pre-built libraries for Cortex-M.</li>
<li>CMSIS-Pack 1.5.0 (unchanged)</li>
<li>CMSIS-SVD 1.3.3 (unchanged)</li>
<li>CMSIS-DAP 1.1.0 (unchanged)</li>
<li>CMSIS-Zone 0.0.1 (unchanged) </li>
</ul>
</td></tr>
<tr>
<td>5.1.0 </td><td><ul>
<li>CMSIS-Core (Cortex-M) 5.0.2 several minor corrections and enhancements</li>
<li>CMSIS-Core (Cortex-A) 1.0.0 implements a basic run-time system for Cortex-A5/A7/A9</li>
<li>CMSIS-Driver 2.05 status typedef made volatile</li>
<li>CMSIS-DSP 1.5.2 fixed GNU Compiler specific diagnostics</li>
<li>CMSIS-RTOS 2.1.1 added support for Cortex-A5/A7/A9 to RTX5</li>
<li>CMSIS-Pack 1.5.0 added SDF format specification</li>
<li>CMSIS-SVD 1.3.3 (unchanged)</li>
<li>CMSIS-DAP 1.1.0 (unchanged)</li>
<li>CMSIS-Zone 0.0.1 (Preview) format to describe system resources and tool for partitioning of resources </li>
</ul>
</td></tr>
<tr>
<td>5.0.1 </td><td><ul>
<li>CMSIS-Core 5.0.1 added __PACKED_STRUCT macro and uVisor support</li>
<li>CMSIS-Driver 2.05 updated all typedefs related to status now being volatile.</li>
<li>CMSIS-DSP 1.5.1 added ARMv8M DSP libraries</li>
<li>CMSIS-RTOS 2.1.0 added support for critical and uncritical sections</li>
<li>CMSIS-Pack 1.4.8 add Pack Index File specification</li>
<li>CMSIS-SVD 1.3.3 (unchanged)</li>
<li>CMSIS-DAP 1.1.0 (unchanged) </li>
</ul>
</td></tr>
<tr>
<td>5.0.0 </td><td>Added support for: <a href="http://www.arm.com/products/processors/instruction-set-architectures/armv8-m-architecture.php" target="_blank"><b>ARMv8-M architecture</b></a> including TrustZone for ARMv8-M and Cortex-M23, Cortex-M33 processors<ul>
<li>CMSIS-Core (Cortex-M) 5.0.0 added support for ARMv8-M and Cortex-M23, Cortex-M33 processors</li>
<li>CMSIS-Driver 2.04.0 (unchanged)</li>
<li>CMSIS-DSP 1.4.9 minor corrections and performance improvements</li>
<li>CMSIS-RTOS 2.0.0 new API with RTX 5.0.0 reference implementation and corrections in RTX 4.8.2</li>
<li>CMSIS-Pack 1.4.4 introducing CPDSC project description</li>
<li>CMSIS-SVD 1.3.3 several enhancements and rework of documentation</li>
<li>CMSIS-DAP 1.1.0 (unchanged) </li>
</ul>
</td></tr>
<tr>
<td>4.5.0 </td><td>Maintenance release that is fixing defects. See component's revision history for more details. See component's revision history for more details.<ul>
<li>CMSIS-Core (Cortex-M) 4.30.0</li>
<li>CMSIS-DAP 1.1.0 (unchanged)</li>
<li>CMSIS-Driver 2.04.0</li>
<li>CMSIS-DSP 1.4.7</li>
<li>CMSIS-Pack 1.4.1</li>
<li>CMSIS-RTOS RTX 4.80.0</li>
<li>CMSIS-SVD 1.3.1 </li>
</ul>
</td></tr>
<tr>
<td>4.4.0 </td><td>Feature release adding CMSIS-DAP (see extended End User Licence Agreement) and CMSIS-Driver for CAN. See component's revision history for more details.<ul>
<li>CMSIS-Core (Cortex-M) 4.20.0</li>
<li>CMSIS-DAP 1.1.0</li>
<li>CMSIS-Driver 2.03.0</li>
<li>CMSIS-DSP 1.4.5 (unchanged)</li>
<li>CMSIS-RTOS RTX 4.79.0</li>
<li>CMSIS-Pack 1.4.0</li>
<li>CMSIS-SVD 1.3.0 </li>
</ul>
</td></tr>
<tr>
<td>4.3.0 </td><td>Maintenance release adding SAI CMSIS-Driver and fixing defects. See component's revision history for more details.<ul>
<li>CMSIS-Core (Cortex-M) 4.10.0</li>
<li>CMSIS-Driver 2.02.0</li>
<li>CMSIS-DSP 1.4.5</li>
<li>CMSIS-RTOS RTX 4.78.0</li>
<li>CMSIS-Pack 1.3.3</li>
<li>CMSIS-SVD (unchanged) </li>
</ul>
</td></tr>
<tr>
<td>4.2 </td><td>Introducing processor support for Cortex-M7. </td></tr>
<tr>
<td>4.1 </td><td>Enhancements in CMSIS-Pack and CMSIS-Driver.<br/>
Added: PackChk validation utility<br/>
Removed support for GNU: Sourcery G++ Lite Edition for ARM </td></tr>
<tr>
<td>4.0 </td><td>First release in CMSIS-Pack format.<br/>
Added specifications for CMSIS-Pack, CMSIS-Driver </td></tr>
<tr>
<td>3.30 </td><td>Maintenance release with enhancements in each component </td></tr>
<tr>
<td>3.20 </td><td>Maintenance release with enhancements in each component </td></tr>
<tr>
<td>3.01 </td><td>Added support for Cortex-M0+ processors </td></tr>
<tr>
<td>3.00 </td><td>Added support for SC000 and SC300 processors<br/>
Added support for GNU GCC Compiler<br/>
Added CMSIS-RTOS API </td></tr>
<tr>
<td>2.10 </td><td>Added CMSIS-DSP Library </td></tr>
<tr>
<td>2.0 </td><td>Added support for Cortex-M4 processor </td></tr>
<tr>
<td>1.30 </td><td>Reworked CMSIS startup concept </td></tr>
<tr>
<td>1.01 </td><td>Added support for Cortex-M0 processor </td></tr>
<tr>
<td>1.00 </td><td>Initial release of CMSIS-Core (Cortex-M) for Cortex-M3 processor </td></tr>
</table>
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