Author: Craig Andrews
Posted in Uncategorized
Do the RD* and WR* Signals Really Need Pull-ups?
You may question the need for the R8 and R9 pull-up resistors on the RD* and WR*…
Posted in Bus Monitor Supreme
SBC-85 Bus Monitor
When writing software, and even when developing hardware for systems like the 8085 based single board computer,…
Posted in Backplane
SBC-85 Backplane 4
As soon as a system is built, it seems that I will already will want to expand…
Posted in 8085 SBC
What is the Minimum SBC-85 CPU System?
When compared to its predecessor , the Intel 8080, the 8085 is a powerful standalone system no…
Posted in 8085 SBC
Oops, CPU version 1.0 Mods
While creating the schematic for the SBC-85 CPU board I sort of went too far when connecting…
SBC-85 CPU Board
From the time I wire-wrapped my first 8085 3-chip system (8085, 8155, 8755) I was hooked on…