https://community.nxp.com/t5/MCX-Microcontrollers/imx8mp-USB2-RX-P-and-RX-N/m-p/2355840#M5288 <P>I am using USB2 as a USB2 port so the USB 3.0 pins are not needed. RX_P and RX_N inputs are grounded in this design. Can this lead to random start up failures.?</P> Fri, 24 Apr 2026 11:53:45 GMT stevelandas 2026-04-24T11:53:45Z https://community.nxp.com/t5/MCX-Microcontrollers/imx8mp-USB2-RX-P-and-RX-N/m-p/2355840#M5288 <P>I am using USB2 as a USB2 port so the USB 3.0 pins are not needed. RX_P and RX_N inputs are grounded in this design. Can this lead to random start up failures.?</P> Fri, 24 Apr 2026 11:53:45 GMT https://community.nxp.com/t5/MCX-Microcontrollers/imx8mp-USB2-RX-P-and-RX-N/m-p/2355840#M5288 stevelandas 2026-04-24T11:53:45Z https://community.nxp.com/t5/MCX-Microcontrollers/imx8mp-USB2-RX-P-and-RX-N/m-p/2355960#M5290 <P>Hello,</P> <P>I suggest you take a look in&nbsp;<A id="relatedDocsClickHTML_1" class="dtmcustomrulelink" href="https://www.nxp.com/webapp/Download?colCode=IMX8MPHDG" target="_self" data-cl-id="4117061256" data-dtmsubaction="i.MX 8M Plus Hardware Developer’s Guide - NXP - User Guide - English" data-dtmsearchresulttitle="i.MX 8M Plus Hardware Developer’s Guide" data-dtmaction="Documentation Section - Results Link Click"><SPAN>i.MX 8M Plus Hardware Developer’s Guide.</SPAN></A></P> <P><SPAN>It is OK, as you can see in&nbsp;Table 30. i.MX 8M Plus USB strapping recommendations, when you are not using these pins, is recommended to ground *_RX_P/N and others floating.</SPAN></P> <P><SPAN>Best regards.</SPAN></P> <P>&nbsp;</P> Fri, 24 Apr 2026 16:35:30 GMT https://community.nxp.com/t5/MCX-Microcontrollers/imx8mp-USB2-RX-P-and-RX-N/m-p/2355960#M5290 JorgeCas 2026-04-24T16:35:30Z