@kd5rxt-mark , I only power the teensy via 5VDC. All the 3v3 pins on the teensy are floating; nothing is applied to them.
As @Fluxanode said, the 3V3 rail is for other ICs (namely the RS422 transmitters).
Schematic is attached.
Existing releases are effectively frozen. Don't expect version 1.62 to ever be re-released, which would mean changing the data and thus all the SHA256 signatures in the platform index file.
But do look for me to (hopefully) get it right in...
To really work with the 1062 takes not only understanding the ref manual and hardware but an NDA for added materials and support, and years of experience and work.
If it were simple everyone would do what PJRC has done, and the Teensy stands...
IMHO - In my implementations I power the teensy with a 5v volt onboard switching supply IC circuit. The teensy uses it's built in 3v3 reg only for itself. For the other 3v3 components i have a separate 3v3 regulator. That way I never have to...