https://blog.senr.io/blog/jtag-explained
https://wrongbaud.github.io/posts/jtag-hdd/
https://www.khjk.org/log/2013/aug/jtagbang.html
http://hsb.wikidot.com/arduino-jtag-finder-workshop
https://github.com/cyphunk/JTAGenum
https://labs.ioactive.com/2021/01/taping-stack-for-fun-and-profit.html
https://www.controlpaths.com/2023/11/25/programming-cp-som-one-rp2040/