Heathkit H8 Part 2 - a Zilog Z8000 CPU board for the H8
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- Опубліковано 15 лип 2024
- In this video, I replace the CPU card in my H8 computer with a card that uses the Zilog Z8000 16-bit CPU. I designed this card based on some of the boards from my Z8000 "clover computer" modular computer project. In addition to the Z8000 CPU, it includes 1MB of RAM and 1MB of flash. On-board peripherals include serial and parallel / counter-timer. While it functions as a standalone computer, the real goal was to put it on the H8 bus, so I implemented the necessary transceivers so it can perform 8-bit IO on the H8 bus. I wrote a panel monitor so the H8 front panel can be used. For more electronics projects, see www.smbaker.com/
- Наука та технологія
Dang man, that's a hell of a pt2. Most of us are still screwing around with power supplies in our pt2s. XD
Wow, that's amazing! I wouldn't have thought that you could use a Z8000 CPU board in the H8. Very cool. 🙂
Back in the day, I was a Z80 fanboy and I got very excited about the Z8000 and was really looking forward to seeing it turn up in some machines.... but... this is THE FIRST Z8000 machine I've ever seen.
Great work 👌
Very fun experiments
Keep it coming.
Thank you
Greetings from north Africa (Algeria )
I like that it programs in HEX!
I feel ya though man. Building other people's boards isn't nearly as satisfying as building your own! I'm planning to put a z180 in mine.
Do you plan on releasing the boards via some service (i.e. JCLPCB or PCBWAY)?
Yes, after I make another revision. jlcpcb is in the Chinese New Year holiday right now, but once they're back, I'll send off for the respin.
@@smbakeryt -GREAT!!
Dumb question time: If the external bus is active low, Why are the bus control signals tied to ground through the resistor pack instead of 5v?
Then you should be able to run a version of UNIX written for the ZILOG Z8000, It is just like the INTEL 8086 where the Address and Data Lines are multiplexed except for address lines A16-A23, You will need a FPU to go with the ZILOG Z8000 to work with IEEE754 floating point, doubles and long doubles.
What about having it like 0000:0000 like it is on INTEL chips.