https://devzone.nordicsemi.com/f/nordic-q-a/76983/what-is-the-cpu-speed-of-nrf52832Hello, what is the CPU speed of nRF52832? I&#39;d like to test if the NRF52832 is running at 32MHz or 64MHz. I used it to run a compression algorithm, which took 8ms to run. Then I used another chip, the ARM Cortex -M4 32-bit processor core operatingen-USTelligent Community 13Fri, 02 Jul 2021 06:44:17 GMThttps://devzone.nordicsemi.com/thread/318339?ContentTypeID=1Fri, 02 Jul 2021 06:44:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:86377fa3-ac4d-4a91-bfdb-85b1322935bfVidar Berg<p>To enable instruction cache you can add the following line to your startup code:</p> <p><pre class="ui-code" data-mode="c_cpp"> /* I-Code cache enable */ NRF_NVMC-&gt;ICACHECNF = (NVMC_ICACHECNF_CACHEEN_Enabled &lt;&lt; NVMC_ICACHECNF_CACHEEN_Pos);</pre></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/318320?ContentTypeID=1Fri, 02 Jul 2021 01:58:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b40a15c7-3215-4017-9c88-c99e03073947Ellison<p><span class="tgt">To enable the instruction cache.</span><span class="tgt">To make the CPU run the fastest.</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/318120?ContentTypeID=1Thu, 01 Jul 2021 08:37:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0acffcf8-6cea-4ba0-9321-0b69e65c9f3bVidar Berg<p>Hello,</p> <p>Yes, the CPU clocked is fixed at 64Mhz. Maybe the instruction cache is disabled (<span><a title=" ICACHECNF " href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/nvmc.html?cp=4_2_0_10_6_7#register.ICACHECNF"> ICACHECNF </a></span>)? Cache is enabled automatically when you use the Softdevice, but not otherwise.</p> <p>Best regards,</p> <p>Vidar</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/318074?ContentTypeID=1Thu, 01 Jul 2021 03:58:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2347a817-2c24-4a50-869c-51f38bdfbd4eEllison<p><span>Feels like my NRF52832 is not running on 64MHz</span></p><div style="clear:both;"></div>