UART: the basics after you know the very basics
Introduction So, after you’re done with the book and have implemented your first 8-bit CPU, you keep wondering ok, but now I want to do real-world stuff I’ve got you covered — when it comes to real-world stuff, nothing beats having the capability to send data to and from other devices. When I began my personal projects, right after getting my Arty A7, I thought I’d need to debug what’s happening inside the FPGA in case the internal logic analyzer wasn’t reliable (pro tip: it’s very reliable). So being able to send data to a computer using a simple protocol is a must. ...