I am trying to build my own PCB with a Cortex-M4 microcontroller LPC4088. I decided that JTAG still is the easiest option for programming it. But ARM has implemented a new 0.05'' pitch SAMTEC micro connector.
I soon found out that older ARM connectors implemented different pinning than the one used in my new adapter.
The old one (named ARM 20-pin I think):
The new one (named ARM 19-pin Cortex debug + ETM):
What does "---" stand for? Is "N_RESET" pin same as "TRST" in older scheme? Can I leave pins 11 and 13 unconnected?
So I am trying to figure how to plan the connector on my PCB in order to work with my new adapter. So this is what I managed to do so far:
But as you see there are some pins which I don't know what to do with them... So If anyone could please tell me where to connect them I would be really happy. Pin details for LPC4088 can be found on page 10 of the first link that I posted.