LPC Microcontrollers中的主题 Re: Can USB0_RREF open if USB0 is unused on LPC4357? https://community.nxp.com/t5/LPC-Microcontrollers/Can-USB0-RREF-open-if-USB0-is-unused-on-LPC4357/m-p/1055089#M40861 <HTML><HEAD></HEAD><BODY><P>Hi</P><P style="color: #51626f; background-color: #ffffff; border: 0px;"><SPAN style="border: 0px; font-weight: inherit; font-size: 11pt;">I suggest the below connections. see below.</SPAN></P><UL style="color: #51626f; background-color: #ffffff; border: 0px; padding: 0px 0px 0px 30px;"><LI style="border: 0px; font-weight: inherit; margin: 0.5ex 0px;">USB0_DP----- unconnected</LI><LI style="border: 0px; font-weight: inherit; margin: 0.5ex 0px;">USB0_DM---- unconnected</LI><LI style="border: 0px; font-weight: inherit; margin: 0.5ex 0px;">USB0_VBUS pulled low</LI><LI style="border: 0px; font-weight: inherit; margin: 0.5ex 0px;">USB0_ID---- unconnected</LI><LI style="border: 0px; font-weight: inherit; margin: 0.5ex 0px;">USB0_RREF pulled low</LI></UL><P><BR />Have a great day,<BR />Jun Zhang</P><P></P><P>-------------------------------------------------------------------------------<BR />Note:<BR />- If this post answers your question, please click the "Mark Correct" button. Thank you!</P><P></P><P>- We are following threads for 7 weeks after the last post, later replies are ignored<BR /> Please open a new thread and refer to the closed one, if you have a related question at a later point in time.<BR />-------------------------------------------------------------------------------</P></BODY></HTML> Mon, 24 Aug 2020 01:41:38 GMT ZhangJennie 2020-08-24T01:41:38Z Can USB0_RREF open if USB0 is unused on LPC4357? https://community.nxp.com/t5/LPC-Microcontrollers/Can-USB0-RREF-open-if-USB0-is-unused-on-LPC4357/m-p/1055088#M40860 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>I am using LPC4357 on my design.</P><P>USB1 is using on my board, and USB0 is unused.</P><P></P><P>Therefore, is there any problem if USB0_RREF pin is opened as USB0 is unused?</P><P></P><P>The following pins are opened too on my board.</P><P>USB0_VBUS</P><P>USB0_DP</P><P>USB0_DM</P><P>USB0_ID</P><P></P><P>Thank you very much.</P></BODY></HTML> Sun, 23 Aug 2020 23:05:26 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Can-USB0-RREF-open-if-USB0-is-unused-on-LPC4357/m-p/1055088#M40860 thanhnhatle 2020-08-23T23:05:26Z Re: Can USB0_RREF open if USB0 is unused on LPC4357? https://community.nxp.com/t5/LPC-Microcontrollers/Can-USB0-RREF-open-if-USB0-is-unused-on-LPC4357/m-p/1055089#M40861 <HTML><HEAD></HEAD><BODY><P>Hi</P><P style="color: #51626f; background-color: #ffffff; border: 0px;"><SPAN style="border: 0px; font-weight: inherit; font-size: 11pt;">I suggest the below connections. see below.</SPAN></P><UL style="color: #51626f; background-color: #ffffff; border: 0px; padding: 0px 0px 0px 30px;"><LI style="border: 0px; font-weight: inherit; margin: 0.5ex 0px;">USB0_DP----- unconnected</LI><LI style="border: 0px; font-weight: inherit; margin: 0.5ex 0px;">USB0_DM---- unconnected</LI><LI style="border: 0px; font-weight: inherit; margin: 0.5ex 0px;">USB0_VBUS pulled low</LI><LI style="border: 0px; font-weight: inherit; margin: 0.5ex 0px;">USB0_ID---- unconnected</LI><LI style="border: 0px; font-weight: inherit; margin: 0.5ex 0px;">USB0_RREF pulled low</LI></UL><P><BR />Have a great day,<BR />Jun Zhang</P><P></P><P>-------------------------------------------------------------------------------<BR />Note:<BR />- If this post answers your question, please click the "Mark Correct" button. Thank you!</P><P></P><P>- We are following threads for 7 weeks after the last post, later replies are ignored<BR /> Please open a new thread and refer to the closed one, if you have a related question at a later point in time.<BR />-------------------------------------------------------------------------------</P></BODY></HTML> Mon, 24 Aug 2020 01:41:38 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Can-USB0-RREF-open-if-USB0-is-unused-on-LPC4357/m-p/1055089#M40861 ZhangJennie 2020-08-24T01:41:38Z