topic JTAG/SWD connector for Kinetis in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/JTAG-SWD-connector-for-Kinetis/m-p/397404#M21935 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I am designing a PCB for Kinetis K22 and have some confusion in SWD connector pin configuration.</P><P></P><P>There are two different configurations available, one is SWD connector in FRDM-K22F schematic (TDI and TDO pins are not used).</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_0.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/54427i5DB030D7AEA9C5DC/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_0.png" alt="pastedImage_0.png" /></span></P><P></P><P>The other configuration is available in user manual of PE Micro U-Multilink (TDI and TDO pins are used).</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/54447i34ACCD7A252D203C/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P></P><P>I would like to know about the difference in these two configurations (how is it possible to program microcontroller without TDI and TDO pins)?</P><P></P><P>I intend to use PE Micro U-Multilink programmer for programming my custom board MCU, which of the two pin configuration should I use?</P><P></P><P>Regards,</P><P>Saad</P></BODY></HTML> Thu, 09 Jul 2015 12:44:16 GMT b51427 2015-07-09T12:44:16Z JTAG/SWD connector for Kinetis https://community.nxp.com/t5/Kinetis-Microcontrollers/JTAG-SWD-connector-for-Kinetis/m-p/397404#M21935 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I am designing a PCB for Kinetis K22 and have some confusion in SWD connector pin configuration.</P><P></P><P>There are two different configurations available, one is SWD connector in FRDM-K22F schematic (TDI and TDO pins are not used).</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_0.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/54427i5DB030D7AEA9C5DC/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_0.png" alt="pastedImage_0.png" /></span></P><P></P><P>The other configuration is available in user manual of PE Micro U-Multilink (TDI and TDO pins are used).</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/54447i34ACCD7A252D203C/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P></P><P>I would like to know about the difference in these two configurations (how is it possible to program microcontroller without TDI and TDO pins)?</P><P></P><P>I intend to use PE Micro U-Multilink programmer for programming my custom board MCU, which of the two pin configuration should I use?</P><P></P><P>Regards,</P><P>Saad</P></BODY></HTML> Thu, 09 Jul 2015 12:44:16 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/JTAG-SWD-connector-for-Kinetis/m-p/397404#M21935 b51427 2015-07-09T12:44:16Z Re: JTAG/SWD connector for Kinetis https://community.nxp.com/t5/Kinetis-Microcontrollers/JTAG-SWD-connector-for-Kinetis/m-p/397405#M21936 <HTML><HEAD></HEAD><BODY><P>Hello Saad,</P><P></P><P>This MCU supports SWD and JTAG debug interfaces. SWD needs only DIO and CLK lines while JTAG needs TMC, TCK, TDO, TDI and RESET lines.</P><P></P><P>I recommend you to take a look into <A href="http://www.arm.com/files/pdf/Serial_Wire_Debug.pdf" title="http://www.arm.com/files/pdf/Serial_Wire_Debug.pdf">this document</A> from ARM where the differences between SWD and JTAG are explained.</P><P></P><P>Regards,</P><P>Earl.</P></BODY></HTML> Thu, 09 Jul 2015 21:33:40 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/JTAG-SWD-connector-for-Kinetis/m-p/397405#M21936 EarlOrlando 2015-07-09T21:33:40Z