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4chipz80

Z80 system using ATmega as IO/boot controller. 4 chips total.

arduino-avr-tools-install

Given Windows with some version of Arduino installed, set the paths to allow using avr-gcc/etc from the command line.

arduinocore-megaavr

arduinocore-sam

arduinocore-samd

Arduino Core for SAMD21 CPU

arduinocore-tinyarm

Starting with teh standard ArduinoCore-samd, modify/re-write for the very small ARM chips (SAMD09, etc.)

arduinozero-pmux-report

Generate a user-readable report of the current state of the pins (what they're doing) on Arduino Zero and other SAMD21 based systems

arduscan

ArduScan is a windows program that passively scans the COM ports on a system looking for ones that are likely to be Arduinos

atmega4809-designs

A couple of PCB designs using the Microchip ATmega4809 microcontroller. More-or-less compatible with Arduino

atmel_atdf_parser

Python code that parses the XML from an Atmel .ATDF Device Description file, and allows you to find/print various information and relationships that are not present in the .h files.

chipkit

Assorted ChipKit PIC32 hacks

cortex-m4-disassembler

A hopefully-small disassembler aimed an resident debuggers on Cortex-M4 (and lower)

dmxserial2

Arduino library for RX/TX DMX RDM packets. Want to modify for other CPUs

duino-hacks

Tiny Arduino (and related) hacks not worth of their own repository.

dxcore-optiboot

Fork of DrAzzy's DxCore, for working on optiboot_dx

eagle-lbr-published

Librarys and User-language-programs (ULPs) for CadSoft EAGLE's Schematics/PCB editor

freeduino-historical

Files and history of the ~2007 "Freeduino" project.

fusebytes

Arduino sketch for printing info about chip signature, fuses, bootloader version, etc

ibmftp-historical

This was a terminal emulator and file transfer program I wrote near the beginning of my career.

leddisplay

Print text to an Avago HCMS-29xx LED display

minimal-arm

Minimalist ARM Cortex Microcontroller development, in assembler.

optiloader

Arduino sketch for burning new bootloaders

oshpark-oshw-designs

I have some PCB projects that I've made public on OSHPark. This is where I'll put the "source code" and any documentation that may exist.

parser

Simple serial command line parser for Arduino/etc

ps2keypolled

Polled PS/2 keyboard functions for Arduino

rp2040irqtests

Small repo made to check on how the RP2040 behaves (and how fast) with different IRQ placement/definitions

rpi-pico-hacks

This is for hacks for or using the Rasberry Pi Cortex-m0+ microcontroller and SDK ("rp2040" and "Pico" board)

samd10-experiments

This code is experiments in adding functionality from the Arduino core to the Atmel SAMD10 Xplained Mini Eval Board.

structured_gas

"Structured programming" macros for Gnu Assembler (gas)

testtools

Assorted tools for testing hardware and software