Electronics_1: (Index)	Back(Sojourner) Index ... Next(0)	The following sections define much of the work in electrical engineering and software that I've put to practical work over the last ten years. Currently the information is broken up into five sections not counting this index. The three buttons (left) will help you navigate through the controllers section when hilighted. Use them to skip back/fwd between projects.

A complete 68332 based controller designed from scratch.

This expansion board adds 2 additional Megabytes of memory to the CRC332 platform.

The IO Expansion Board Brings 24 additional lines of programmable IO to the CRC332 platform along with the additional AtoD lines.

The development board outlined in this secion was used to experiment with interfaing a 68332 uProcessor <=> Xilinx Spartan FPGA, including 5v<=>3.3v high speed, bi-directional bus conversion.

The Generic Development Board is just that. Designed many years back, I've used it to develop hundreds of thousands of lines of code as well as a prototyping platform for may hardware projects, a few of which are listed below.

One of the interface boards developed on the Generic platform (above), This first Laser Range Finder prototype is an interesting project. There are some examples of the output and schematics.

The board presented in this project is an IO expansion board for the Generic Development Board presented above. It contains 24 additional software controlled IO's and an additional 8 AtoD's.

This project is designed to drive a series of eight opto-isolated high current DC loads through protected power MOSFET switches. It can be used in conjunction with both the CRC332 and the Generic Development Board above.

One of the first graphics display panel projects I worked on. This system was originally slated for inclusion in my large robot project. It has since been replaced by the large panel TFT driver project, Below.

An older legacy design shows a stack of hand made PCB's that have held up remarkably well over the years. The pitch is 0.050" and the processor system still boots.

Another hand wire wrap board, this system was originally designed to interface a multidrop RS485 bus to eight stepper motor amplifiers and eight analog to digital conversion ports.

A history of boards, this page outlines a significant portion of my early years board layout work.

Hummm... This is one of those projects I am not at liberty to share much informtion on, sorry...

This system is a complete 8080 processor with interrupt controller, RAM, ROM, AtoD, and LCD interface that I hand wire wrapped back in college as a side project.

This CPLD on this project implements a high speed fiber optic communications interface with DMA control capable of sustaining 15 Mbits/second.

16-bit microprocessor development project, complete with RAM, ROM, FLASH, RESET, CPLD & Serial IO...

Used to develop high speed inter module networking protocols and to test out an unproven hardware design, this controller has gone through many revisions and part of this work lives on today in much more current work.

Yet another wire wrap job. This ISA interface card provided the primary link between a desktop PC and an RAM style EDM, X-Y table & AtoD converter to provide 3d path support.

This project implements an interface between a PC-104 bus and an SDLC protocol handler/microprocessor

This ultra small motor driver design was implemented specifically for use with the CRC332 above, however any processor with PWM output can interface to it.

Designed to drive 5A continuous, this stepper motor amplifier uses all discrete components with a completely original design. Many years old now, it was a really great learning project.

A 10 bit Analog to Digital front end with associated filtering components. The application required at least 8 bits of solid data so a digital filter was applied to the output data as well as the analog front end components.

This design uses a linear CCD and an embedded PIC chip to implement a range finder prototype.

This one I built to develope flash programming alogrithms and hardware interfaces to PCMCIA removable flash media.

This project is one of the hand wire wrapped boards for the original lego robot project. There is quite a bit of good information here. You can learn some prototyping infromation here as well as download the full schematics to boot.

For additional resource information, or help on trying to locate components, electrical or mechanical, refer to the Links section of this page, left. Back Index ... Next(0)