topic Re: Single Wire Debugging (SWD) with 1 MHz System Clock does not work in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/Single-Wire-Debugging-SWD-with-1-MHz-System-Clock-does-not-work/m-p/573863#M18906 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by starblue on Mon Feb 17 10:01:28 MST 2014</STRONG><BR /><SPAN>Try lowering the SWD clock frequency.</SPAN></BODY></HTML> Wed, 15 Jun 2016 20:13:10 GMT lpcware 2016-06-15T20:13:10Z Single Wire Debugging (SWD) with 1 MHz System Clock does not work https://community.nxp.com/t5/LPC-Microcontrollers/Single-Wire-Debugging-SWD-with-1-MHz-System-Clock-does-not-work/m-p/573861#M18904 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by pkarrer_solcept on Mon Feb 17 08:32:18 MST 2014</STRONG><BR /><SPAN>Clock Setup: Clock source is the internal IRC.</SPAN><BR /><BR /><SPAN>When I leave the divider by 1, then SWD still works.</SPAN><BR /><BR /><SPAN>When I change the divider to 12 (eq. 1 MHz) then it get "Failed on connect: Ep(01). Target marked as not debuggable"</SPAN><BR /><BR /><SPAN>What's wrong?</SPAN></BODY></HTML> Wed, 15 Jun 2016 20:13:09 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Single-Wire-Debugging-SWD-with-1-MHz-System-Clock-does-not-work/m-p/573861#M18904 lpcware 2016-06-15T20:13:09Z Re: Single Wire Debugging (SWD) with 1 MHz System Clock does not work https://community.nxp.com/t5/LPC-Microcontrollers/Single-Wire-Debugging-SWD-with-1-MHz-System-Clock-does-not-work/m-p/573862#M18905 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by lpcxpresso-support on Mon Feb 17 09:03:50 MST 2014</STRONG><BR /><SPAN>Which target?</SPAN><BR /><SPAN>Which debug probe?</SPAN><BR /></BODY></HTML> Wed, 15 Jun 2016 20:13:09 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Single-Wire-Debugging-SWD-with-1-MHz-System-Clock-does-not-work/m-p/573862#M18905 lpcware 2016-06-15T20:13:09Z Re: Single Wire Debugging (SWD) with 1 MHz System Clock does not work https://community.nxp.com/t5/LPC-Microcontrollers/Single-Wire-Debugging-SWD-with-1-MHz-System-Clock-does-not-work/m-p/573863#M18906 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by starblue on Mon Feb 17 10:01:28 MST 2014</STRONG><BR /><SPAN>Try lowering the SWD clock frequency.</SPAN></BODY></HTML> Wed, 15 Jun 2016 20:13:10 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Single-Wire-Debugging-SWD-with-1-MHz-System-Clock-does-not-work/m-p/573863#M18906 lpcware 2016-06-15T20:13:10Z Re: Single Wire Debugging (SWD) with 1 MHz System Clock does not work https://community.nxp.com/t5/LPC-Microcontrollers/Single-Wire-Debugging-SWD-with-1-MHz-System-Clock-does-not-work/m-p/573864#M18907 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by pkarrer_solcept on Wed Feb 19 03:31:55 MST 2014</STRONG><BR /><SPAN>It's an LPC812 and a Red Probe+</SPAN></BODY></HTML> Wed, 15 Jun 2016 20:13:11 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Single-Wire-Debugging-SWD-with-1-MHz-System-Clock-does-not-work/m-p/573864#M18907 lpcware 2016-06-15T20:13:11Z Re: Single Wire Debugging (SWD) with 1 MHz System Clock does not work https://community.nxp.com/t5/LPC-Microcontrollers/Single-Wire-Debugging-SWD-with-1-MHz-System-Clock-does-not-work/m-p/573865#M18908 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by pkarrer_solcept on Wed Feb 19 03:32:18 MST 2014</STRONG><BR /><HR /><SPAN style="color: #0000ff;"><STRONG>Quote: starblue</STRONG><BR />Try lowering the SWD clock frequency.</SPAN><HR /><BR /><BR /><SPAN>How?</SPAN></BODY></HTML> Wed, 15 Jun 2016 20:13:11 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Single-Wire-Debugging-SWD-with-1-MHz-System-Clock-does-not-work/m-p/573865#M18908 lpcware 2016-06-15T20:13:11Z Re: Single Wire Debugging (SWD) with 1 MHz System Clock does not work https://community.nxp.com/t5/LPC-Microcontrollers/Single-Wire-Debugging-SWD-with-1-MHz-System-Clock-does-not-work/m-p/573866#M18909 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by pkarrer_solcept on Wed Feb 19 04:01:54 MST 2014</STRONG><BR /><SPAN>Thanks, I changed the debug speed and it is fixed.</SPAN><BR /></BODY></HTML> Wed, 15 Jun 2016 20:13:12 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Single-Wire-Debugging-SWD-with-1-MHz-System-Clock-does-not-work/m-p/573866#M18909 lpcware 2016-06-15T20:13:12Z