Kinetis MicrocontrollersのトピックHow to achieve one microsecond delay in K-64 micro controller using KDS IDE? https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-achieve-one-microsecond-delay-in-K-64-micro-controller/m-p/682272#M42007 <HTML><HEAD></HEAD><BODY><P>In Firmware we are allowing the clock running with 80MHz and we are using an external 8MHz crystal on our&nbsp;board.Still, we couldn't able to achieve the 1us delay. We have checked with the oscilloscope we are getting 1.5us delay instead of 1us delay.<A href="https://community.nxp.com/space/11213">Kinetis Design Studio</A>. <A href="https://community.nxp.com/community/kinetis?sr=search&amp;searchId=394033e7-f38e-4253-8ab5-e964a2ccd7f8&amp;searchIndex=5">https://community.nxp.com/community/kinetis?sr=search&amp;searchId=394033e7-f38e-4253-8ab5-e964a2ccd7f8&amp;searchIndex=5</A>‌</P></BODY></HTML> Tue, 16 May 2017 18:53:40 GMT saravananrajend 2017-05-16T18:53:40Z How to achieve one microsecond delay in K-64 micro controller using KDS IDE? https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-achieve-one-microsecond-delay-in-K-64-micro-controller/m-p/682272#M42007 <HTML><HEAD></HEAD><BODY><P>In Firmware we are allowing the clock running with 80MHz and we are using an external 8MHz crystal on our&nbsp;board.Still, we couldn't able to achieve the 1us delay. We have checked with the oscilloscope we are getting 1.5us delay instead of 1us delay.<A href="https://community.nxp.com/space/11213">Kinetis Design Studio</A>. <A href="https://community.nxp.com/community/kinetis?sr=search&amp;searchId=394033e7-f38e-4253-8ab5-e964a2ccd7f8&amp;searchIndex=5">https://community.nxp.com/community/kinetis?sr=search&amp;searchId=394033e7-f38e-4253-8ab5-e964a2ccd7f8&amp;searchIndex=5</A>‌</P></BODY></HTML> Tue, 16 May 2017 18:53:40 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-achieve-one-microsecond-delay-in-K-64-micro-controller/m-p/682272#M42007 saravananrajend 2017-05-16T18:53:40Z Re: How to achieve one microsecond delay in K-64 micro controller using KDS IDE? https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-achieve-one-microsecond-delay-in-K-64-micro-controller/m-p/682273#M42008 <HTML><HEAD></HEAD><BODY><P>Hi </P><P>The red LED can toggle every 1us, test the pit demo in <A href="https://mcuxpresso.nxp.com/en/welcome">SDK_2.2_FRDM-K64F</A>. (...\SDK_2.2_FRDM-K64F\boards\frdmk64f\driver_examples\pit)</P><P><span class="lia-inline-image-display-wrapper" image-alt="PIT_LedRed_toggle.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/19284i2AD7C3B9568F4B4B/image-size/large?v=v2&amp;px=999" role="button" title="PIT_LedRed_toggle.png" alt="PIT_LedRed_toggle.png" /></span></P><P><span class="lia-inline-image-display-wrapper" image-alt="SDK_2.2_FRDM-K64F pit.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/19333i5765D3B801CB3294/image-size/large?v=v2&amp;px=999" role="button" title="SDK_2.2_FRDM-K64F pit.png" alt="SDK_2.2_FRDM-K64F pit.png" /></span></P><P><span class="lia-inline-image-display-wrapper" image-alt="RED LED.jpg"><img src="https://community.nxp.com/t5/image/serverpage/image-id/19388i91803164D9694CCD/image-size/large?v=v2&amp;px=999" role="button" title="RED LED.jpg" alt="RED LED.jpg" /></span></P><P>Would you please tell us how did you achieve the 1us delay? You can attach the project here.</P><P></P><P>Best Regards,</P><P>Robin</P><P style="min- padding: 0px;">&nbsp;</P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Thu, 18 May 2017 02:38:52 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-achieve-one-microsecond-delay-in-K-64-micro-controller/m-p/682273#M42008 Robin_Shen 2017-05-18T02:38:52Z