µ[micro]electronics info

A weblog focused on interesting circuits, ideas, schematics and other information about microelectronics and microcontrollers.




Because I have not tested all electronic circuits mentioned on this pages, I cannot attest to their accuracy; therefore, I do not provide a warranty of any kind and cannot be held responsible in any manner.

My e-mail

My website

Programming Stuff

Homebrew JTAG interface for the MSP430, the AVR or the CPLDs? In-Circuit Debugger for the Microchip's PIC? The GAL programmer? No problem!

Here are some links to the articles about building different JTAGs or programmers. Sorted by target circuit.


Schematics (Olimex external): https://www.olimex.com/dev/images/msp430-jtag-d-sch.gif
Documentation (Olimex external): https://www.olimex.com/dev/pdf/msp430-jtag-d.pdf

Schematics: https://www.xilinx.com/support/programr/files/0380507.pdf
JTAG parallel cable: https://toolbox.xilinx.com/docsan/3_1i/data/common/jtg/dppb/appb.htm

Atmel AVR
Build your own AVR JTAG ICE clone: https://www.scienceprog.com/build-your-own-avr-jtagice-clone/
AVR ICE+JTAG+ISP: https://www.mcu.cz/modules/news/article.php?storyid=491
AVR JTAG miniICE: https://www.mcu.cz/modules/news/article.php?storyid=438

Microchip PIC
ICD2 USB clone: scheme external and boot code external
ICD2 USB clone (DIL version, in the Czech): https://www.mcu.cz/modules/news/article.php?storyid=538

Schematics: https://www.geocities.com/mwinterhoff/schema.gif
Hardware: https://www.geocities.com/mwinterhoff/hardware.htm
SW description: https://www.geocities.com/mwinterhoff/program.htm

USB JTAG: https://www.fh-augsburg.de/~hhoegl/proj/usbjtag/usbjtag.html
OpenOCD: https://www.fh-augsburg.de/~hhoegl/proj/openocd/index.html

OSBDM08 Easy (DIL version): schematics external, EAGLE files external, documentation external
OSBDM08 SMD version: schematics external, Eagle files external
More about OSBDM08 external and other HC08/HCS08 microchips

Powered by Drupal - Design by Artinet