I wanted to just try to make a QFN deadbug style just to know I could do it.
So I took the wiring diagram and flip it, then flipped and mirror all the labels and components so I could have the bottom view (and changed the label from top view to bottom view).
I wired it up until I got to the XRES, added the decoupling caps and connected the ground with a 22 AWG cable on the other side of the board. Only 9 pins left but I had plenty of GPIOs plus SWDIO/SWDCLK so I attempted to program it before completion.
It powers up and I get regulated 1.8V out of VCCD. I got no shorts but hooking it up to my programmer it doesn't recognize it. Granted, I think I connected 4V by mistake to VCCD instead of VDDD so I might have fried the chip.
On another document I saw that VDDD and VDDA should be shorted, I tried that as well but it just doesn't talk to the programmer via SWD.
I know I can buy 5 boards for a buck or so, but I just wanted to check if I could solder 0.5mm with just one of those third helping hand with magnifying glass, some wire that I have no idea where it came from and my cheap Tenma (Hakko knockoff). I still have 19 of those chips left but the next attempt will be with one of those cheap boards and a skillet.
I stacked the 0.1uF caps on top of the 1uF caps when both where needed.
So right now the only thing this is good for is to regulate from a 1.8V-5.5V unregulated input and get 1.8V regulated output and helped me clear my head while doing it, kind of relaxing since I had no choice but to take my time and work slowly.
The pads on those PSoC4 QFNs are smaller than small.
I consider the result a Fail, but I did enjoyed wiring it up.