Circuit Cellar Ink 13
February/March 1990

Table of Contents

1


Curtis Franklin, Jr.

Editor's INK

Dateline: Las Vegas

5

Reader's INK

Letters to the Editor

8

New Product News

12

Visible INK

Letters to the INK Research Staff

14


Bill Curlew

Building An IBM PC Keyboard Translator

An 8031-based System for Code Translation

You know the problem: You have a favorite keyboard, but it only works with one of your systems. wouldn't it be nice if you could take "old reliable" with you as you move from system to system? With the keyboard translator developed by Bill Curlew, you can!

Download: transkey.zip

21


J. Conrad Hubert
Dick Hubert

Building Etude

Part 1 -- A 25-MHz Analog-to-Digital Converter for the PC Bus

It's hard to imagine doing serious data acquisition without a serious digitizer. The Etude 25-MHz digitizer board is just that. The first of two parts deals with the hardware side of the story.

30


Dean McConnell

Digital Signal Processing

Part 1 -- An Introduction

Digital Signal Processors (DSPs) have changed the way we look at analog signal problems. In the first of two parts, Dan McConnell discusses the most commonly used transforms and how they're applied.

Download: dspintro.zip

42


Jack Ganssle

The BCCH16

Part 2 -- Porting a Multitasking BASIC to the H16

The BCCH16 is more than hardware: A multitasking BASIC compiler lets you put its power to use. Jack Ganssle looks at the process of porting a compiler between similar processors in the wrap-up article on the BCCH16.

52


Ed Nisley

Firmware Furnace

An Exercise for the Student -- Building Software from the Ground Up

60


Jeff Bachiochi

From the Bench

ENTION ... ATTENTION ... ATTENTION ... ATT -- Building an LED Moving Message Display

65

Advertiser's Index

68


Tom Cantrell

Silicon Update

Earthshaking Chips -- A Report from the Second Microprocessor Forum

72


Jack Ganssle

Software by Design

Memory Management on the HD64180

76


Ken Davidson

ConnecTime -- Excerpts from the Circuit Cellar BBS

80


Steve Ciarcia

Steve's Own INK

An Analog State of Mind

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