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In the early 70's I came up with an algorithm for recycling binary trees which could efficiently return a subtree to the garbage pool and reuse its nodes without tree traversal....
Friday, 15 June 2007 - 19:46
[TUT] SD card initialization and the Butterfly
There's a lot of SD/MMC card info around, but most of it's not easy to wade through. This document tells specifically how to wire an SD card to a Butterfly, initialize it, and...
Wednesday, 14 February 2007 - 04:45
64 Servos on an RS-232 daisy chain
Here's a bit of code that's all but finished, but the project area barks about finished projects only and says to post it elsewhere for feedback. It's working and almost done...
Monday, 15 January 2007 - 03:59
[DIS] [ASM] How fast does your Butterfly flutter by?
As has been discussed in these forums and projects, the serial bootloader on the Butterfly leaves the clock running at 2 MHz. This document gives a small program to visually show...
Tuesday, 7 November 2006 - 00:20
[DIS] Butterfly bootloader protocol (AVR109 update)
Here is a list of the actual commands recognized by the Butterfly serial bootloader, as opposed to the general AVRProg commands shown in the AVR109 Application Note. Mostly they...
Wednesday, 18 October 2006 - 22:33
[TUT] [ASM] [CODE] Butterfly DataFlash programming
Here is a book chapter that discusses the Butterfly's DataFlash serial memory and gives a subroutine that supports all DataFlash commands. Yup, it's assembly language, but it...
Thursday, 12 October 2006 - 21:13