topic Re: Programming several microcontrollers within one circuit in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/Programming-several-microcontrollers-within-one-circuit/m-p/694940#M27967 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P><SPAN style="font-size: 10.0pt; color: black;">&nbsp;</SPAN>If you are going to disconnect all the SWDIO lines, then it is correct.&nbsp; It works for all the Microcontrollers with the same SWD interface.</P><P></P><P><BR />Have a great day,<BR />Soledad</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Tue, 15 Aug 2017 18:53:06 GMT soledad 2017-08-15T18:53:06Z Programming several microcontrollers within one circuit https://community.nxp.com/t5/LPC-Microcontrollers/Programming-several-microcontrollers-within-one-circuit/m-p/694939#M27966 <HTML><HEAD></HEAD><BODY><P>I would like to program several (exactly four) microcontrollers LPC1114 in the same circuit using the SWD interface. I have a circuit in which the lines: 3V3, GND, SWDIO and SWCLK are connected parallel to the microcontroller's pins and I am going to choose one of the line to control the programming process. In this case that line would be disconnected (using a relay) to the all microcontrollers and we want to connect the line just to the one of the microcontrollers, which we want to program at a given time. The other lines are connected parallel to the all microcontrollers all the time. Now there is my question: which line - 3V3, GND, SWDIO or SWCLK - is the best to use to choose the microcontoller which is going to be programmed?</P></BODY></HTML> Wed, 09 Aug 2017 08:54:39 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Programming-several-microcontrollers-within-one-circuit/m-p/694939#M27966 mateuszlewandow 2017-08-09T08:54:39Z Re: Programming several microcontrollers within one circuit https://community.nxp.com/t5/LPC-Microcontrollers/Programming-several-microcontrollers-within-one-circuit/m-p/694940#M27967 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P><SPAN style="font-size: 10.0pt; color: black;">&nbsp;</SPAN>If you are going to disconnect all the SWDIO lines, then it is correct.&nbsp; It works for all the Microcontrollers with the same SWD interface.</P><P></P><P><BR />Have a great day,<BR />Soledad</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Tue, 15 Aug 2017 18:53:06 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Programming-several-microcontrollers-within-one-circuit/m-p/694940#M27967 soledad 2017-08-15T18:53:06Z