Using latest build of raspbianRan os updates:
sudo apt update; sudo apt upgrade
Ran firmware update:
Detecting the TNC and running getparams first time:Following the manual here as it's for this particular hardware: https://www.wvcarc.com/p/tnc-96k-resources.html
And additional help from this manual since it has much more information: http://www.tnc-x.com/TNCPi.pdf
Serial Port - it should be on /dev/serial0. To enable it, do:
Select option 5 for Interfacing options
Select option 6 for Serial
Say "no" to the login shell question.
Say "yes" to serialport hardware question.
Now you should see output when you do "pitnc_getparams /dev/serial0 0"
Software SetupFollowing this guide for software setup: https://dl1gkk.com/setup-raspberry-pi-for-ham-radio/
Skipped the direwolf stuff for now since I'm using the TNC