#19 - New clock phase, WR timing improvement - BB816 Computer
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In this video, I fix the timing of the Write pulse that we identified last time, by introducing a new clock phase, shifted to the left of the clock. I update our Digital simulation, and implement it on the breadboard. Now we have a pretty good glue logic!
Join me in discussing this project in the 6502 forums: http://forum.6502.org/viewtopic.php?f...
View the source code and schematics shown in this video: https://github.com/adrienkohlbecker/B...
The most recent source code and schematics are available here: https://github.com/adrienkohlbecker/B...
Chapters:
00:00 Intro
00:21 Problem with WR timing
01:23 New clock phase
04:07 Re-do glue logic with non-inverted clock
09:27 Updating WR with new clock phase
10:21 Optimizing our physical chip count
13:04 KiCad implementation
17:35 Timing diagrams
20:41 Breadboard implementation
32:41 Outro