topic Re: KL05, Use the same pin for two things in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/KL05-Use-the-same-pin-for-two-things/m-p/993066#M55745 <HTML><HEAD></HEAD><BODY><P>Hi Javier,</P><P>PORTA_PCR0[MUX] can be used to switch function CMP0_IN2(ALT0) and SWD_CLK(ALT3).</P><P><span class="lia-inline-image-display-wrapper" image-alt="PTA0.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/92457iE4D77F8B87E89C73/image-size/large?v=v2&amp;px=999" role="button" title="PTA0.png" alt="PTA0.png" /></span></P><P><span class="lia-inline-image-display-wrapper" image-alt="PORTx_PCRn[MUX].png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/92431iB2A07385A29C6A59/image-size/large?v=v2&amp;px=999" role="button" title="PORTx_PCRn[MUX].png" alt="PORTx_PCRn[MUX].png" /></span></P><P>Due to the default setting of PTA0, you need to change this setting when you want to use it as CMP0_IN2 function.</P><P><span class="lia-inline-image-display-wrapper" image-alt="Table 3-47. Ports Summary.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/92500iE4866117EA4F3090/image-size/large?v=v2&amp;px=999" role="button" title="Table 3-47. Ports Summary.png" alt="Table 3-47. Ports Summary.png" /></span></P><P>Debug port\NMI_b\Reset_b pins are not recommend to use as other function, due to it may cause connect problem when you want to debug it again after flashed.&nbsp;See: <A href="https://mcuoneclipse.com/2013/06/16/bricking-and-recovering-frdm-kl25z-boards-reset-swd-clock-and-low-power/">Bricking and Recovering FRDM-KL25Z Boards: Reset, SWD Clock and Low Power</A></P><P></P><P style="color: #51626f; background-color: #ffffff; border: 0px; font-size: 14px;">Best Regards,</P><P style="color: #51626f; background-color: #ffffff; border: 0px; font-size: 14px;">Robin</P><P style="color: #51626f; background-color: #ffffff; border: 0px; font-size: 14px;">&nbsp;</P><P style="color: #51626f; background-color: #ffffff; border: 0px; font-size: 14px;">-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Fri, 15 Nov 2019 07:07:00 GMT Robin_Shen 2019-11-15T07:07:00Z KL05, Use the same pin for two things https://community.nxp.com/t5/Kinetis-Microcontrollers/KL05-Use-the-same-pin-for-two-things/m-p/993065#M55744 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>It's possible to use the PTA0 for use SWD_CLK and CMP0_IN2 so?</P><P></P><P><span class="lia-inline-image-display-wrapper" image-alt="mkl05.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/92497i763198F057243858/image-size/large?v=v2&amp;px=999" role="button" title="mkl05.png" alt="mkl05.png" /></span></P><P></P><P>BR</P></BODY></HTML> Thu, 14 Nov 2019 22:19:51 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/KL05-Use-the-same-pin-for-two-things/m-p/993065#M55744 javierhernande1 2019-11-14T22:19:51Z Re: KL05, Use the same pin for two things https://community.nxp.com/t5/Kinetis-Microcontrollers/KL05-Use-the-same-pin-for-two-things/m-p/993066#M55745 <HTML><HEAD></HEAD><BODY><P>Hi Javier,</P><P>PORTA_PCR0[MUX] can be used to switch function CMP0_IN2(ALT0) and SWD_CLK(ALT3).</P><P><span class="lia-inline-image-display-wrapper" image-alt="PTA0.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/92457iE4D77F8B87E89C73/image-size/large?v=v2&amp;px=999" role="button" title="PTA0.png" alt="PTA0.png" /></span></P><P><span class="lia-inline-image-display-wrapper" image-alt="PORTx_PCRn[MUX].png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/92431iB2A07385A29C6A59/image-size/large?v=v2&amp;px=999" role="button" title="PORTx_PCRn[MUX].png" alt="PORTx_PCRn[MUX].png" /></span></P><P>Due to the default setting of PTA0, you need to change this setting when you want to use it as CMP0_IN2 function.</P><P><span class="lia-inline-image-display-wrapper" image-alt="Table 3-47. Ports Summary.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/92500iE4866117EA4F3090/image-size/large?v=v2&amp;px=999" role="button" title="Table 3-47. Ports Summary.png" alt="Table 3-47. Ports Summary.png" /></span></P><P>Debug port\NMI_b\Reset_b pins are not recommend to use as other function, due to it may cause connect problem when you want to debug it again after flashed.&nbsp;See: <A href="https://mcuoneclipse.com/2013/06/16/bricking-and-recovering-frdm-kl25z-boards-reset-swd-clock-and-low-power/">Bricking and Recovering FRDM-KL25Z Boards: Reset, SWD Clock and Low Power</A></P><P></P><P style="color: #51626f; background-color: #ffffff; border: 0px; font-size: 14px;">Best Regards,</P><P style="color: #51626f; background-color: #ffffff; border: 0px; font-size: 14px;">Robin</P><P style="color: #51626f; background-color: #ffffff; border: 0px; font-size: 14px;">&nbsp;</P><P style="color: #51626f; background-color: #ffffff; border: 0px; font-size: 14px;">-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Fri, 15 Nov 2019 07:07:00 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/KL05-Use-the-same-pin-for-two-things/m-p/993066#M55745 Robin_Shen 2019-11-15T07:07:00Z