DIY Z80 Retro Computer #7: Wrap Up, EEProm, and PCB
This is part 7 of the "Z80 Computer from Sratch" playlist. In this video I replaced the flaky battery buffered RAM with a 32 Kilobyte EEProm. I also explain the mechanism of Bankswitching and order a printed circuit board. Get your PCB for this project from PCBgogo at https://www.pcbgogo.com/promo/DoctorVolt. New customers get 30USD off when choosing their components sourcing service:
https://www.pcbgogo.com/SMT_discount....
Schematics and source files can be found on Github: (Not yet up to date)
https://github.com/michalin/ZX2020
Tools:
Camera: https://amzn.to/3NjCZnk
Logic analyzer: https://amzn.to/3wYseBN
CF card adapter: https://amzn.to/3pSllh6
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0:00 Interface Z80 with an Arduino
0:31 Interfacing RAM and UART Interface
0:52 Running CP/M and ancient programs
1:37 Booting from Hard Drives
2:14 Booting from EEPROM
3:00 Bank switching
4:22 Designing the PCB
6:48 Usage of the computer
7:40 CompactFlash issues