Grant’s 7-chip Z80 computer
Posted by musovern on May 10th, 2018 in Grant's 7 Chip Z80, Single Board Computers | 0 comments
This is my version of Grant Searle’s 7-chip Z80 computer that i made on veroboard a few years back a very simple Z80 design.
The purpose of this computer is to create the simplest possible machine with a high speed interface, good amount of RAM and also a good implementation of BASIC.
The design that Grant produced is shown here, and is probably the simplest Z80 circuit that can be done to fulfill what I needed.
Micro UK101
Posted by musovern on May 10th, 2018 in Micro UK101, Single Board Computers | 0 comments
The micro UK101 described here is by Grant Searle effectively the stripped-down “core” of the original UK101, and is no way intended to be the full UK101 implementation. The display and the keyboard circuitry and, instead, used a terminal emulation program (eg HyperTerm for Windows) as the keyboard/display. This has resulted in a very simple circuit which is suitable for use embedded-control applications as well as a fully-functioning computer. I have tried to make as few functional changes as possible to allow old software to work, wherever possible. As a result the BASIC ROM is totally untouched.
Read More...S100 18 Slot
Posted by musovern on May 7th, 2018 in S100, S100 18 Slot System | 0 comments
The new System in progress, Just waiting for some more S100 BUS connectors. Then one to making a case, already have power supply’s. New EDAC connectors turned up and soldered in place, Now designing a new case for the system 4 Slot Altair with Guide rails Guide rails on top This is the stl file link download. Read More...
ECB SBC (Z80) Computer
Posted by musovern on May 7th, 2018 in N8VEM, Single Board Computers | 0 comments
In 2006, Andrew Lynch published his Single-Board CP/M design with the intention to involve others in a collective homebrewing project. The N8VEM (named after his ham radio license) is expandable with add-on cards and soon, an informal collaborative effort emerged around a Google mail group. A web site was set up to share the hard- and software that began to be produced. Builders with a wide range of skills got involved – from well-known systems designers to absolute beginners that bought Andrew’s $20 circuit board to explore CP/M.
Read More...The Multicomp Cyclone II-C
Posted by musovern on May 7th, 2018 in MultiComp Board, Single Board Computers | 0 comments
The Multicomp Cyclone II-C (v1.10) is a motherboard which provides peripheral connectivity for a Cyclone II FPGA development board commonly available on eBay. The board was designed “by committee” in the retrobrewcomputers forum during December 2015, with James Moxham doing all the actual work (schematic capture and PCB layout). One of the prime motivators for this board was to fit a 10cmx10cm footprint because the manufacturing cost of PCBs of this size is particularly attractive. It provides connectivity for the following peripherals: (v1.10) is a motherboard which provides peripheral connectivity for a Cyclone II FPGA development board commonly available on eBay. The board was designed “by committee” in the retrobrewcomputers forum during December 2015, with James Moxham doing all the actual work (schematic capture and PCB layout).
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