https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-reuse-KL02-reset-pin-as-GPIO/m-p/1346263#M61559 <P>要禁用reset功能在fopt寄存器里</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="nxf56274_0-1632644581515.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/157377i84705D41E0B9A8D1/image-size/medium?v=v2&amp;px=400" role="button" title="nxf56274_0-1632644581515.png" alt="nxf56274_0-1632644581515.png" /></span></P> <P>fopt在</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="aa2.PNG" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/157378i26AA86F3276A6162/image-size/medium?v=v2&amp;px=400" role="button" title="aa2.PNG" alt="aa2.PNG" /></span></P> <P>FLASH configuration在代码里位置</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="nxf56274_1-1632644615204.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/157379i61C07866B2A6CA0B/image-size/medium?v=v2&amp;px=400" role="button" title="nxf56274_1-1632644615204.png" alt="nxf56274_1-1632644615204.png" /></span></P> <P>&nbsp;</P> <P>&nbsp;</P> Sun, 26 Sep 2021 08:24:09 GMT nxf56274 2021-09-26T08:24:09Z https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-reuse-KL02-reset-pin-as-GPIO/m-p/1346242#M61557 <P>How to reuse KL02 reset pin as GPIO?</P> Sun, 26 Sep 2021 07:20:56 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-reuse-KL02-reset-pin-as-GPIO/m-p/1346242#M61557 eve 2021-09-26T07:20:56Z https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-reuse-KL02-reset-pin-as-GPIO/m-p/1346259#M61558 <P>In principle, you have to mux the pin as a GPIO pin and disable the reset functionality. Best if you consult the reference manual.</P><P>How to do this with Processor Expert or in general, see <A href="https://mcuoneclipse.com/2013/02/16/using-the-reset-button-on-the-freedom-board-as-user-button/" target="_blank">https://mcuoneclipse.com/2013/02/16/using-the-reset-button-on-the-freedom-board-as-user-button/</A> (using KL25, but KL02 is very similar).</P><P>I hope this helps,</P><P>Erich</P><P>PS: I recommend to use a 'safety line' and not remuxing the pin right after reset, otherwise you might have difficulties to access the device using a debugger.</P> Sun, 26 Sep 2021 08:18:48 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-reuse-KL02-reset-pin-as-GPIO/m-p/1346259#M61558 ErichStyger 2021-09-26T08:18:48Z https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-reuse-KL02-reset-pin-as-GPIO/m-p/1346263#M61559 <P>要禁用reset功能在fopt寄存器里</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="nxf56274_0-1632644581515.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/157377i84705D41E0B9A8D1/image-size/medium?v=v2&amp;px=400" role="button" title="nxf56274_0-1632644581515.png" alt="nxf56274_0-1632644581515.png" /></span></P> <P>fopt在</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="aa2.PNG" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/157378i26AA86F3276A6162/image-size/medium?v=v2&amp;px=400" role="button" title="aa2.PNG" alt="aa2.PNG" /></span></P> <P>FLASH configuration在代码里位置</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="nxf56274_1-1632644615204.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/157379i61C07866B2A6CA0B/image-size/medium?v=v2&amp;px=400" role="button" title="nxf56274_1-1632644615204.png" alt="nxf56274_1-1632644615204.png" /></span></P> <P>&nbsp;</P> <P>&nbsp;</P> Sun, 26 Sep 2021 08:24:09 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/How-to-reuse-KL02-reset-pin-as-GPIO/m-p/1346263#M61559 nxf56274 2021-09-26T08:24:09Z