Building CERBERUS 2080™, my dream childhood computer: Episode 14

As an 8 year old child, I dreamed of one day building my own 8-bit microcomputer. Motivated by this dream, I went to computer engineering school at 17. For almost thirty years since, however, the dream has lain dormant and forgotten. But no more: follow me as I honor the child I once was, and build the best late-70s-style microcomputer -- with vintage technology -- one could hope to have.

CERBERUS 2080™ is not only a brand new, elegant and authentic retro-computer, it is also a fully-documented, open, educational platform for students and hobbyist who would like to understand computers down to the gate level.

In this fourteenth episode, we integrate the Z80 CPU into the system, test the control handover and interrupt protocol between it and CAT (the I/O processor and master of the system), and run a test application on the Z80 to demonstrate that it all works together. An update on the kernel code, including new functions, is also given, as well as an update on SPACER's (one of the four custom chips in CERBERUS) hardware architecture.

USED IN THIS EPISODE:

Z80 CPU:
https://www.zilog.com/index.php?option=com_product&Itemid=26&task=parts&BL=1&familyId=20&productId=Z84C00&puqs=b3B0aW9uPWNvbV9wcm9kdWN0JnRhc2s9cHJvZHVjdCZidXNpbmVzc0xpbmU9MSZpZD0xMzkmcGFyZW50X2lkPTEzOSZJdGVtaWQ9NTkmYms9MjAmZHZjPVo4NEMwMA==

Arduino IDE:
https://www.arduino.cc/en/software

ATmega328P-PU microcontroller:
https://www.microchip.com/wwwproducts/en/ATmega328P

ATF1508AS and ATF1504AS CPLDs, including documentation (click on ‘Documents’) and development/programming tools (click on ‘Development Environment’):
https://www.microchip.com/wwwproducts/en/ATF1508AS
https://www.microchip.com/wwwproducts/en/ATF1504AS

Видео Building CERBERUS 2080™, my dream childhood computer: Episode 14 канала The Byte Attic