I faced an abnormal JTAG phenomenon on Calypso 3M family when I used Laughterbach.
It's a simple phenomenon but I couldn't find the root cause.
When I tried to "sys.up" command on my Calypso 3M through Laughterbach, I can't attach to device and the message "emulation debug port fail" was printed.
But the weird thing is, I can definitely access to device through Multilink + S32DS combination.
Here is the device information and I would like to receive a feedback from whom had been solved this kind of problem.
Also Please refer to the attached waveform difference between Multilink and Laughterbach.
FYI, I didn't program any binary, In other words, it's a empty device.