topic How to activat external Clock LPC54102 in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/How-to-activat-external-Clock-LPC54102/m-p/945633#M37620 <HTML><HEAD></HEAD><BODY><P>Emulator&nbsp;stops with "redlink Interface error 255" after enabling external clock.</P><P>Is the Emulator "LPC-LINK 2" useable when processor is running with external clock?</P><P>How shall I enable external clock correctly?</P></BODY></HTML> Fri, 19 Jul 2019 09:04:10 GMT edelbertgreiner 2019-07-19T09:04:10Z How to activat external Clock LPC54102 https://community.nxp.com/t5/LPC-Microcontrollers/How-to-activat-external-Clock-LPC54102/m-p/945633#M37620 <HTML><HEAD></HEAD><BODY><P>Emulator&nbsp;stops with "redlink Interface error 255" after enabling external clock.</P><P>Is the Emulator "LPC-LINK 2" useable when processor is running with external clock?</P><P>How shall I enable external clock correctly?</P></BODY></HTML> Fri, 19 Jul 2019 09:04:10 GMT https://community.nxp.com/t5/LPC-Microcontrollers/How-to-activat-external-Clock-LPC54102/m-p/945633#M37620 edelbertgreiner 2019-07-19T09:04:10Z Re: How to activat external Clock LPC54102 https://community.nxp.com/t5/LPC-Microcontrollers/How-to-activat-external-Clock-LPC54102/m-p/945634#M37621 <HTML><HEAD></HEAD><BODY><P>Hi Edelbert Greiner ,</P><P></P><P>"LPC-LINK 2" is usable when processor is running with external clock.</P><P></P><P>If you use LPCXpresso54102 demo board, there is only 32.768k external RTC clock on board, no external clock for CLKIN.</P><P>If you are sure you have external clock soldered and workable, I suggest you take use of MCUXpresso Config Tool to configure external clock. I ever tested on LPCXpresso54608 board, external clock worked well during debug. refer this thread:</P><P><A href="https://community.nxp.com/thread/493220">Switch between external crystal oscillator and fro on LPC546xx</A>&nbsp;</P><P></P><P>Have a great day,<BR />Jun Zhang</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Mon, 22 Jul 2019 05:54:11 GMT https://community.nxp.com/t5/LPC-Microcontrollers/How-to-activat-external-Clock-LPC54102/m-p/945634#M37621 ZhangJennie 2019-07-22T05:54:11Z