One of my new years resolutions was to 'play' more with various chips/boards/ideas so I decided to give Friday afternoons over to this. Earlier this week I found that, somehow, I'd manged to accumulate a total of 8, yes 8, ATmega4809 Curiosity Nanos.
So I bought a Curiosity Nano Adapter and mounted one on it, along with a FTDI chip breakout...
The 4809 Curiosity has an on-board nEDBG unit and so I was able to add an external tool into Codevision which uses atprogram to upload my .hex file to the 4809.
I've now accomplished the first two steps we should all take...a 1Hz blinky and an 115200 baud "Hello World".