prefer that speed everywhere from now on

boot loader prefers this speed for some reason.

high is led OFF

now i know that i can read this register, do it like this.

maybe i am not allowed to read it? perhaps i need authorisation
from the CUBEMX management supervisor before access to every gpio? ;-)

last change here. will test systick timer on maple mini
and then afterward consider the next step.

we blink the LED on the board with a new twist in the that
in the illuminated phase of the cycle we bit-bang it as
fast as possible to inspect on a frequency counter.

speed it up

fix imported junk

fix that message

miniblinky for vdd-gnd board