https://community.nxp.com/t5/LPC-Microcontrollers/UART-connection-for-LPC55S28/m-p/2055330#M57812 <P>Hello&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/246045">@steve5528</a>&nbsp;</P> <P><SPAN>We highly recommend that you refer to the schematic of the LPCxpresso55s28.</SPAN></P> <P><A href="https://www.nxp.com/design/design-center/software/development-software/mcuxpresso-software-and-tools-/lpcxpresso-boards/lpcxpresso55s28-development-board:LPC55S28-EVK" target="_blank">https://www.nxp.com/design/design-center/software/development-software/mcuxpresso-software-and-tools-/lpcxpresso-boards/lpcxpresso55s28-development-board:LPC55S28-EVK</A>&nbsp;&nbsp;</P> <P>&nbsp;</P> <P>BR</P> <P>Alice</P> Tue, 04 Mar 2025 08:13:06 GMT Alice_Yang 2025-03-04T08:13:06Z https://community.nxp.com/t5/LPC-Microcontrollers/UART-connection-for-LPC55S28/m-p/2053896#M57789 <P>Good day!</P><P>&nbsp;</P><P>I am building a PCB with LPC55S2x and would like to know the hardware level specifics to make UART work? If for instance, FC0 UART is being used, then, is it simple as routing the two FC0 pins: RXD and TXD to a jumper from where a serial-usb bridge is used to connect to the PC? Do RX and TX lines need any resistors on their path? In EVK-LPC55S2x schematics, I see&nbsp;FC0_USART_RXD connecting to a 100 ohm resistor, so wanted some clarification.</P><P>&nbsp;</P><P>Thanks.</P> Fri, 28 Feb 2025 16:46:34 GMT https://community.nxp.com/t5/LPC-Microcontrollers/UART-connection-for-LPC55S28/m-p/2053896#M57789 steve5528 2025-02-28T16:46:34Z https://community.nxp.com/t5/LPC-Microcontrollers/UART-connection-for-LPC55S28/m-p/2055330#M57812 <P>Hello&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/246045">@steve5528</a>&nbsp;</P> <P><SPAN>We highly recommend that you refer to the schematic of the LPCxpresso55s28.</SPAN></P> <P><A href="https://www.nxp.com/design/design-center/software/development-software/mcuxpresso-software-and-tools-/lpcxpresso-boards/lpcxpresso55s28-development-board:LPC55S28-EVK" target="_blank">https://www.nxp.com/design/design-center/software/development-software/mcuxpresso-software-and-tools-/lpcxpresso-boards/lpcxpresso55s28-development-board:LPC55S28-EVK</A>&nbsp;&nbsp;</P> <P>&nbsp;</P> <P>BR</P> <P>Alice</P> Tue, 04 Mar 2025 08:13:06 GMT https://community.nxp.com/t5/LPC-Microcontrollers/UART-connection-for-LPC55S28/m-p/2055330#M57812 Alice_Yang 2025-03-04T08:13:06Z