topic Re: IF_DETECT on LPC1549 Xpresso V2 board debug port in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/IF-DETECT-on-LPC1549-Xpresso-V2-board-debug-port/m-p/513238#M78 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by starblue on Wed Jul 01 01:04:03 MST 2015</STRONG><BR /><HR /><SPAN style="color: #0000ff;"><STRONG>Quote: jdupre</STRONG><BR />Anyone know what the IF_DETECT wire is for on debug header P1?</SPAN><HR /><BR /><SPAN>This is usually called GndDetect, you can use it to detect the presence of a debugger.</SPAN><BR /><BR /><SPAN>On the debugger it should be connected to ground.</SPAN><BR /><BR /><SPAN>So if you remove R5 and enable pull-up on P2[13] you should be able to detect whether a debugger is present.</SPAN><BR /><BR /><SPAN>Note that I haven't tried this. I'm also not sure how this is used. Maybe when debugging you want to block certain functions for safety reasons, say if the LPC15xx is controlling a big motor.</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:06:50 GMT lpcware 2016-06-15T17:06:50Z IF_DETECT on LPC1549 Xpresso V2 board debug port https://community.nxp.com/t5/LPC-Microcontrollers/IF-DETECT-on-LPC1549-Xpresso-V2-board-debug-port/m-p/513237#M77 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by jdupre on Tue Jun 30 11:05:36 MST 2015</STRONG><BR /><SPAN>Anyone know what the IF_DETECT wire is for on debug header P1?</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:06:49 GMT https://community.nxp.com/t5/LPC-Microcontrollers/IF-DETECT-on-LPC1549-Xpresso-V2-board-debug-port/m-p/513237#M77 lpcware 2016-06-15T17:06:49Z Re: IF_DETECT on LPC1549 Xpresso V2 board debug port https://community.nxp.com/t5/LPC-Microcontrollers/IF-DETECT-on-LPC1549-Xpresso-V2-board-debug-port/m-p/513238#M78 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by starblue on Wed Jul 01 01:04:03 MST 2015</STRONG><BR /><HR /><SPAN style="color: #0000ff;"><STRONG>Quote: jdupre</STRONG><BR />Anyone know what the IF_DETECT wire is for on debug header P1?</SPAN><HR /><BR /><SPAN>This is usually called GndDetect, you can use it to detect the presence of a debugger.</SPAN><BR /><BR /><SPAN>On the debugger it should be connected to ground.</SPAN><BR /><BR /><SPAN>So if you remove R5 and enable pull-up on P2[13] you should be able to detect whether a debugger is present.</SPAN><BR /><BR /><SPAN>Note that I haven't tried this. I'm also not sure how this is used. Maybe when debugging you want to block certain functions for safety reasons, say if the LPC15xx is controlling a big motor.</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:06:50 GMT https://community.nxp.com/t5/LPC-Microcontrollers/IF-DETECT-on-LPC1549-Xpresso-V2-board-debug-port/m-p/513238#M78 lpcware 2016-06-15T17:06:50Z