V2 of my Z80 SBC project, with the end goal of having color graphics(?) along with a BASIC interpreter based off of NASCOM BASIC. A future revision may include support for CP/M.
Feel free to clone this project. Just be sure to acknowledge me as printed below:
Copyright Jacob Hahn 2019.
This documentation describes Open Hardware and is licensed under the
CERN OHL v. 1.2.
You may redistribute and...
A single board computer based on the Zilog Z80 processor.
This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.
SC118 v1.1 (www.scc.me.uk)
Z80 processor card for Z50Bus
This card can work in a modest way as a Single Board Computer (SBC) or be used part of a larger system on a Z50Bus backplane.
Documentation at [www.scc.me.uk](http://www.scc.me.uk)
"The Missing Module"
Pairing this module with S. Cousins SC108 (CPU+memory) or SC114 SBC form a complete CP/M computer system.
The beauty with #61 is that it can be used as a
1) bus clock
2) serial interface
4) or a combination of these functions.
In addition, it allows the CPU to run asynchronously up to 24Mhz (Z80) or 33Mhz (Z180)
Pick-and-mix to create your own custom computer on a low-cost FPGA board
(BASIC, Z80, 6502, 6809, internal/external RAM, serial/keyboard+monitor, SD-card for CP/M or other storage)
by Grant Searle (2014)
Altera Cyclone IV E10 LQFP144 Port (ZEOWAA EP4CE10)
(c) 2018 Thorsten M. Wahl
Banked EPROM RAM Board
- EPROM can be enabled/disabled with write to register
- EPROM occupies first 16K of address space
- First or Second bank of 16K in EPROM can be selected
- Modified to use ZIFF Socket
The design is based on SMBakers 64k memory module (www.smbaker.com).
Pageable 64k RAM memory module using 2x 32k RAM chips a 64kb ROM (16/32kb).
I recommend using SCMonitor R3 with this module for ordinary operation.
The module has been modified to be working with the #28 Z180 CPU module and SCMonitor 1.00 43.
Address selectable, the default address is $38.