Category Archives: AVR Butterfly

SPI – Serial Peripheral Interface – Part 1: Getting a Little Shifty

Posted on March 4, 2011 by joepardue

Smiley’s Workshop 28: Getting a Little Shifty Nuts&Volts November 2010 Joe Pardue (c) September 8, 2010 Figure 1: Butterfly with Shift Registers. Recap: Last month we finished looking at the AVR memory architecture and wrote a bootloader that lets us … Continue reading →

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SPI – Serial Peripheral Interface – Part 2: AVR Butterfly DataFlash

Posted on March 4, 2011 by joepardue

Nuts&Volts December 2010 Joe Pardue (c) October 6, 2010 Q Figure 1: 4-Mbit DataFlash on Atmel AVR Butterfly Last month we got a little shifty and learned about the 74HC595 and 74HC597 shift registers, wrote some software SPI (Serial Peripheral … Continue reading →

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C Programming For Microcontrollers – Quick Start Guide

Posted on December 4, 2010 by joepardue

First three chapters of the book show how to use the Atmel AVR Butterfly with AVRStudio and WinAVR. Continue reading →

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ButterUp – A Butterfly Hex File Uploader

Posted on October 10, 2010 by joepardue

ButterUp Manual Joe Pardue October 10, 2010 You can get the ButterUp application at: ButterUpInstall.zip Figure 1: ButterUp ButterUp is my attempt to make uploading applications to the Butterfly as easy as possible while still using the standard Atmel tools: … Continue reading →

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