https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S28-How-to-determine-whether-the-USB-wired-has-DP-and-DM/m-p/1948171#M56801 <P>Now when I am developing the LPC55S28, I need to determine whether the USB wired has DP or DM. The current method is to judge the reset signal below the PC, but this method is not suitable for my project at present. I want to determine by directly detecting the change of the pin level of DP or DM. Or can it be determined by reading the MCU related registers?</P> Thu, 05 Sep 2024 10:35:25 GMT JJ3 2024-09-05T10:35:25Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S28-How-to-determine-whether-the-USB-wired-has-DP-and-DM/m-p/1948171#M56801 <P>Now when I am developing the LPC55S28, I need to determine whether the USB wired has DP or DM. The current method is to judge the reset signal below the PC, but this method is not suitable for my project at present. I want to determine by directly detecting the change of the pin level of DP or DM. Or can it be determined by reading the MCU related registers?</P> Thu, 05 Sep 2024 10:35:25 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S28-How-to-determine-whether-the-USB-wired-has-DP-and-DM/m-p/1948171#M56801 JJ3 2024-09-05T10:35:25Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S28-How-to-determine-whether-the-USB-wired-has-DP-and-DM/m-p/1948971#M56813 <P>Hello&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/235635">@JJ3</a>&nbsp;</P> <P>Do you mean detecting the signal change on pin DP/DM? How about directly measure the pins?</P> <P>&nbsp;</P> <P>BR</P> <P>Alice</P> Fri, 06 Sep 2024 10:10:55 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S28-How-to-determine-whether-the-USB-wired-has-DP-and-DM/m-p/1948971#M56813 Alice_Yang 2024-09-06T10:10:55Z