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2012-09-09 - At89sXX in system programmer - Posted by: hilogicsys
A freeware DIY Programmer for Atmel AT89sxx seriese of Microcontrollers

2007-04-30 - AT89SXX In system Programmer - Posted by: hilogicsys
A freeware DIY AT89SXX RS232 based In System Programmer.

2004-02-07 - Microcontroller Performance Comparison - Posted by: Richard
Compare the relative performance of PIC, AVR, RDC (x186) and Rabbit microcontrollers.

This site presents the results of timings taken when executing the same C code on the above microcontrollers.

2003-02-07 - 0.5mm / 0.8mm Breadboard - Posted by: Jeff Frohwein
CREDIT CARDS now accepted. Part #5800 is a 0.62 inch thick dual-purpose PC board for adapting most 80-pin, or smaller, QFP or TSOP devices to 0.1 inch header spacing for easy breadboarding. One side supports 0.5mm spacing parts and the other side supports 0.8mm spacing parts. Soldering headers to the appropriate side determines which side to use. Because of the unique design of the board, any device 80 pins or less, can easily be supported. QFP parts will work regardless if each side has an odd or even number of pins.

2002-05-20 - Converting Windows printer output to .PDF or .BMP - Posted by: Jeff Frohwein
Here is info from Bob Blick for creating .PDF or .BMP files from Windows printer output. It takes a few steps to do but it's a free way of creating these file formats.

2002-05-14 - JTAG Download cable for Xilinx CPLD and FPGA - Posted by: Thomas Tai
The most affordable way to program Xilinx CPLD and FPGA, use with free Xilinx Webpack ISE. The actual circuit is based on Xilinx's JTAG/Parallel Download cable.

2002-05-10 - Merlin PCB Designer - Posted by: Jeff Frohwein
Shareware printed circuit board layout package using CorelDRAW. Info from W. M. van Spengen.

2002-02-14 - Electronics Primers - Posted by: Jeff Frohwein
For anyone that is starting out in electronics or those that want to learn more in a specific area, this is a good place to start. Follow the 'Electronics Primers' in the following link.

2002-02-01 - Evaluation Kit for CYpress MicroSystems PSoC Microcontrollers. - Posted by: Richard Rooney
Orlin Technology has begun shipping the OTPSoC Evaluation Kit. This product is the first of its kind and facilitates development of systems based on the revolutionary PSoC (Programmable System-on-Chip)Microcontroller from Cypress MicroSystems Inc. All current family members are supported (CY8C25122, CY8C26233, CY8C26443 and CY8C26643).

2001-12-26 - Three-Chip EEPROM Programmer - Posted by: Jeff Frohwein
It looks like Jay has made a much simplier design than I came up with. Worth a look!

2001-11-09 - NeftyTouch - Altera FPGA/EPLD downloading / programming tool - Posted by: Jeff Frohwein
Reliable and cost effective replacement solution for the Altera Corporation ByteBlaster and ByteBlasterMV download cable. Downloads data from the MAX+PLUS II development software. Programs MAX 3000, 7000, 9000 in-system. Configures FLEX 20K, 10K, FLEX 8K, FLEX 6K devices. Works from 1.8 to 5.5 volts.

2001-10-01 - GALBlast - [PHOTO] - Posted by: RsD212
GALBlast: free schematics, instructions, board layouts, and software to program GAL chips via parallel port.

2001-06-21 - FindChips.com - Posted by: Jeff Frohwein
Here's a site that searches 20 or more distributors for chips that you are trying to locate. It's a big time saver!

2001-03-30 - Professional Seiko S-7600 TCP/IP Development Module. - Posted by: Orlin Technology
The OT731 from Orlin Technology is the realisation of Microchip's Application Note AN731. It consists of a complete stand-alone Webserver/Webclient based on the PIC16F877, Seiko S-7600 and an embedded Modem. C-code sources for the Server and Client applications are included.

2001-01-31 - Flash / EEPROM Programmer Software v1.6 - Posted by: Jeff Frohwein
Support for AMD Am29Fx00 chips has been added.

2001-01-24 - Frohwein-Sshua Flash Programmer - Posted by: Jeff Frohwein
This version of the flash programmer by Sshua is optimized for 29F040 (and similar) flash chips. On one computer, it took more than 15 minutes to write 512Kb to a 29F040. Replacing the 74HC590 (binary counters) by 74HC595 (shift registers) on the address bus reduced this to 3 minutes. It's now a little slower than before for other eeproms.

2000-12-13 - Frohwein-Tucker Flash Programmer Adapters - Posted by: Jeff Frohwein
Here as 32 & 48 pin TSOP adapter PC boards for this programmer. Also, a small 3.3v adapter PC board to support low power flash.

2000-11-16 - DIY MP3 Links - Posted by: Jeff Frohwein
Here are links to almost all known MP3 players that are custom made.

2000-11-15 - Frohwein-Tucker Flash Programmer v1.0 - Posted by: Jeff Frohwein
Here are Protel PC Board drawings, a modified schematic, and better documentation for the Rev C flash programmer. Thanks goes to Tucker for his work!

2000-11-02 - Dr7.com - Posted by: Jeff Frohwein
This is mainly a satellite dish hacking site but it contains all kinds of easy to build programmers for various memory & computer chips.

2000-07-14 - Low Cost Seiko TCP/IP Starter Kit - Posted by: Jeff Frohwein
Here's a kit for experimenting with the Seiko S7600 TCP/IP chip. You can control the chip using the parallel port of a PC. It connects to an external modem. Example programs are included. Including one for checking POP3 email.

2000-06-21 - - Posted by:


2000-05-30 - UltraCAD Tools - Posted by: Jeff Frohwein
UltraCAD has written four calculator programs for Windows.

* UltraCLC - This program allows you to calculate a variety of parameters related to PCB transmission lines for a variety of different configurations and loading conditions.

* Ultra CT - This program will estimate a crosstalk coefficient between two parallel traces for a variety of different configurations.

* PCBTemp - Looks at the relationship between trace current, geometry, and temperature rise of PCB traces.

* ESR - For looking at the power system impedance as a function of the number and values of bypass capacitors, and in particular their ESR.

2000-04-23 - Electronic Tools Area Opens - Posted by: Jeff Frohwein
No news at this point. Probably won't be much news in this section. Visit the links in this section though for various electronic tools.

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