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5 Apr 2020 10:30:41 UTC
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Making a new Backplane - Making an 8 Bit pipelined CPU - Part 68
Before moving the rest of the build forwards I decided to put a bit of effort into tidying up the register stack and laying some ground work for the next stages. I design a new backplane pcb to replace the mess of pcb's and stripboard that was connecting everything before.
My apologies this one took a while, life got in the way and this video ballooned out of control, every step took ages. I ended up with about 7 hours of footage to edit into something sensible. There won't be as long a wait for the next video.
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https://www.youtube.com/watch?v=UAcGiSpXNgk
My apologies this one took a while, life got in the way and this video ballooned out of control, every step took ages. I ended up with about 7 hours of footage to edit into something sensible. There won't be as long a wait for the next video.
...
https://www.youtube.com/watch?v=UAcGiSpXNgk
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In my last mailbag I briefly showed the transfer register PCB that came back from manufacturing, in this video I solder it up and give it a test. With this video the register stack is both complete and fully transferred to pcb.
The transfer register works fine, but I do experience some instability elsewhere. I didn't want to delay this video for another day so I've left that for now. I'll do some investigation, if it's more complex than a loose wire there will probably be a troubleshooting video.
In the next build step will be to add some RAM and finally become Turing complete!
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https://www.youtube.com/watch?v=jrfwVzD0GIw
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