Homebrew Z80 Computer (Part 4)
The computer is now a fully operational Z80 board, with ROM, RAM and I/O. All I/O is through a serial USB connection to a terminal package (such as PuTTy), and there is some software on ROM, my Z80 monitor program, and BBC Basic for Z80. It is still running on a slow (~1Mhz) clock provided by the clock circuit devised in Part 1. The next step is to implement a faster and more accurate clock …