https://community.nxp.com/t5/LPC-Microcontrollers/LPC4088-SWO-Tracing-with-CMSIS-DAP-or-J-Link/m-p/1253060#M44451 <P>I am trying to get SWO tracing inside MCUXpresso working. I have an LPC4088 QSB with the onboard CMSIS-DAP LPC-Link2 debugger and an external SEGGER J-Link probe.<BR /><BR />I can debug successfully with both probes, but when I start SWO tracing windows, its not possible to configure the SWO correctly.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="swo_config.png" style="width: 494px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/140789i42B640C045D64B34/image-dimensions/494x177?v=v2" width="494" height="177" role="button" title="swo_config.png" alt="swo_config.png" /></span></P><P>&nbsp;</P><P>What steps am I missing to get this to work with both probes?</P><P> </P> Fri, 26 Mar 2021 21:34:34 GMT tux19 2021-03-26T21:34:34Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC4088-SWO-Tracing-with-CMSIS-DAP-or-J-Link/m-p/1253060#M44451 <P>I am trying to get SWO tracing inside MCUXpresso working. I have an LPC4088 QSB with the onboard CMSIS-DAP LPC-Link2 debugger and an external SEGGER J-Link probe.<BR /><BR />I can debug successfully with both probes, but when I start SWO tracing windows, its not possible to configure the SWO correctly.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="swo_config.png" style="width: 494px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/140789i42B640C045D64B34/image-dimensions/494x177?v=v2" width="494" height="177" role="button" title="swo_config.png" alt="swo_config.png" /></span></P><P>&nbsp;</P><P>What steps am I missing to get this to work with both probes?</P><P> </P> Fri, 26 Mar 2021 21:34:34 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC4088-SWO-Tracing-with-CMSIS-DAP-or-J-Link/m-p/1253060#M44451 tux19 2021-03-26T21:34:34Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC4088-SWO-Tracing-with-CMSIS-DAP-or-J-Link/m-p/1253352#M44458 <P>Hi, Christian,</P> <P>If you use SWO, you have to use SWD protocol(includinf SWDIO, SWCLK, SWO(optional)), the SWO pin of LPC4088 must be connected in the onboard CMSIS-DAP LPC-Link2 debugger and an external SEGGER J-Link probe.</P> <P>secondly, you have to use PRINTF() function in application code so that message in PRINT() function can output via SWO.</P> <P>I attach a doc which demos how to use SWO.</P> <P>Regarding the question where the PRINTF() function will output, it is dependent on the tools, the PRINT() function can output to console, uart, ITM.</P> <P>&nbsp;</P> <P>Hope it can help you</P> <P>BR</P> <P>XiangJun Rong</P> Mon, 29 Mar 2021 06:00:54 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC4088-SWO-Tracing-with-CMSIS-DAP-or-J-Link/m-p/1253352#M44458 xiangjun_rong 2021-03-29T06:00:54Z