I'm currently designing the debug port for my STM32L4R5 microcontroller. I'm planning to use the STLINKV2 debugger but it's using a 20 pin JTAG connector which has a big footprint for my PCB. I saw suggestions that I can use the Olimex 20pin to 10pin connector, but it seems like the Olimex connector didn't connect the TRSTN pin from the debugger to the Olimex. Is the TRSTN pin important?
And is there any example schematic to connect the Olimex board to a JTAG debugger? Thanks.