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Zagcom >> Links>> Computer Hardware Circuits >> Build a computer

Build a computer ( 23 ) :

alt.comp.hardware.homebuilt FAQ
Banish bad memories - Numerous factors - some of which you can influence and others beyond your control - collaborate to create memory-subsystem errors. Designing and testing with these factors in mind, though, can curtail their effects at the system level.
comp.arch.hobbyist FAQ
Embedded System Design Articles - from 1991 through 1998, Scott Rosenthal of SLTF wrote a column for Personal Engineering & Instrumentation News magazine on the issues involved with designing embedded systems
Embedded Systems Glossary
Homebrew Computers FAQ
Interface connects ISA bus to ďż˝P - ICs that interface directly into an ISA-bus structure can provide useful functional extensions to the M68300 family of processors that have a CPU32-style external bus
Internet Appliance Chip Design
Powering the big microprocessors - modern microprocessor power-supply design must furnish many amps at a tightly controlled voltage level and respond quickly to heavy load transients

EE-100 Ethernet Module - A small PCB based on Crystal/Cirrus' CS8900A-CQ Ethernet Controller that provides 8-bit interfacing to a 10Base-T ethernet LAN. The schematic is freely available, as is some example code for NetMedia's BX24 module.
How to build your own ZX80/ZX81! - This page details the construction of your own ZX80.
LART - small yet powerful embedded computer capable of running Linux, 250 MIPS while consuming less than 1 Watt of power
The Handy Board - 68HC11, IR, LCD, motor control
PoTrES - PoTrES is a small stand-alone 8-bit embedded system capable of sending emails to several recipients on an ethernet network(corporate intranet, world-wide internet). It uses a minimal TCP/IP implementation. This circuit was designed to send an email in the event of post arrival into the tray.

Hot-swap your way to high availability - follow live-insertion board-design guidelines to keep the sparks from flying

How sychronous memory (SDRAM) will impact top-level IS planning - white paper
Design and PCB Layout Considerations for Dynamic Memories interfaced to the Z80 CPU by Tim Olmstead - Book in pdf format.
Information on DRAM interfacing, by Tim Olmstead

Microprocessor Serial Port Break-Reset Circuit - This circuit allows a remote microprocessor to be reset by a controlling host over a remote RS-232 or similar protocol serial line. This circuit detects long duration zero level signals (breaks) on a NRZ (non return to zero) serial data line. Normal serial characters spend a short time in the zero state, and do not cause a reset. Break characters last long enough to cause the output of the circuit to switch.
RISC ďż˝P supports IEEE parallel-port standard - shows the logic required to implement an IEEE-1284-compliant parallel port, using the Am29202 RISC processor

Katix Real Time OS - Katix is small real time operating system with IP protocol stack for 68xxx and 68hc11 (also for 80x86 PC). This operating system is designed for small IP networked applications.