ObviousInRetrospect

yes this also applies to mTC. I'm not totally sold on the grand unified power management library. I think some examples and docs might cover quite a bit of it....

Both problems are reproducible but variable time to reproduce. There are a few test traces above. always seems to happen within 10k cycles, usually much faster. Of the two, the...

reverse the frequency: run the slave (DA) at 1mhz and the master (1614) at 10mhz

New code give me: ``` Users/user/Library/Arduino15/packages/DxCore/hardware/megaavr/1.4.10/libraries/Wire/src/twi_pins.c:468:68: error: 'PORTB' undeclared (first use in this function); did you mean 'PORT0'? PORT_t *port = (PORT_t *)((portmux == PORTMUX_TWI1_ALT2_gc) ? &PORTB : &PORTF); ^~~~~...

No pressure but is the head of tree worth trying with your latest commits or is it still known broken? With Melody, Microchip accomplished the amazing feat of making Atmel...

please don't add non-idempotent behavior to .swap(DEFAULT) - I sometimes use an alt position as a mux and keeping track of where it is pointed is annoying vs just setting...

I dislike these being things that are created by hand in a graphics editor. I did a very rough draft of a diagram for the AVRxxDD14 using GenPinoutSVG.py. I extracted...

oh font size scale etc are trivial to change. I was forcing it down to letter size I can generate any scale. I started with PIN_Pxn but thought you wanted...

I'll play around with making it equivalently readable and looking better embedded in the md if you are ok with a change in format in principle.

I took another stab at increasing readability. I settled on the notation signal.swap_pos such as TX0 / TX0.3 / TX0.4 with a note that you need to choose the same...