Below is a collection of Hardware Design Tools that I've developed during various projects that I've worked on.
Just download this file into the jEdit/mode directory of your jEdit installation and add the line:
to the file called "catalog" that's also in that directory.
I took the spice 3f5 code from Berkeley, added configuration files for cygwin and applied a couple of patches I generated from spice3f5sfix. I also modified the code to remove all of the compile time warnings. NOTE: You will need to build this package in a directory tree that is at least 4 directories deap, i.e. /home/charles/temp/spice/spice3f5-ce/.
If you want to build it you will need to install cygwin, including the X.org stuff, and the X.org development library. Then download and uncompress spice3f5-ce and:
./util/build cygwin install
If you have any questions, comments, or concerns email me at [email protected] .
MathCad 2001i Spreadsheets
A simple linear model of a lossless transmission line. Loosely based on a similar simulation provided by Dr. Howard Johnson in his "High Speed Signal Propagation" Book.
A set of equations that rounds off a resistor or capacitor value to the nearest value in the standard set of North American values. I use this one a lot when I'm doing power supply design.
An analysis of a Buck Converter Design based on the TI TMS5k series controller.
This simulation demonstrates some of the effects that interconnect has on a bypass capacitor's impedance.
An analysis of a TI TPS79501 LDO (thermal and tuning resistor calculation).
A PCB Transmission Line Impedance Calculator.
A model of an ferrite bead based decoupling filter (Pi-Filter).
A Quick and Dirty PCB Thermal Analysis.
Hardware Development Tools
Fylla is a tool that loads a FLASH device through the JTAG port of a device that's connected to it. I built it as a simple Boot-loader Loader; I didn't feel like shelling out a pile of cash for a debugger for simple FLASH loading.
This is written for a Linux PC (uses the parallel port), and can program a Spasion FLASH through an AMD AU1000 processor. The device coverage can be expanded, with a little work.
The H/W design consists of a single octal Flip-Flop, some resistors and caps; stuff I had laying around. A simple buffer would work as well. There's a schematic included in the Fylla package.
This code / design could also be used for test and debug (if it's expanded). JTAG's pretty powerful and simple, it's not used enough by most Hardware Designers.
Getting this to work in another application will take some soldering and coding (in C). If you screw something up it may destroy your PC, or your Device-Under-Test. This tool is not recommended for anyone who isn't comfortable with that.