Content originally posted in LPCWare by jderimig on Thu Dec 05 15:28:05 MST 2013
Quote: R2D2
I'm still not sure which hardware / SWD connection you are using and which software you are flashing :quest:
One of them is killing your SWD...
Anyway, after checking Hardware and Software I usually scope SWD lines at SWDIO / SWDCLK Pins (not Pads!!!). You should see there a clock signal (SWDCLK) and a bidirectional SWD data signal. A working data signal is showing a higher voltage at acknowledge bits (from target) and target data bits (about 0.2V with a 30cm SWD cable).
Another option is a damaged LPC. Did you try another board?
See my above edited post. I did something wrong in my SPI setup.
Edit: Got the LPC-link communications and debug working like a Swiss watch now, only now my SPI is not working, back to the user manual to figure out the configuration settings.