Talk:AVR microcontrollers/Archive 1

Who is the Big Jerk?
There used to be many useful AVR links at the bottom of the article. Who is the jerk that keeps deleting them all?

I noticed that several users have launched a complain about a user called "Egil" that keeps deleting stuff from both this article and the "AVR Butterfly" article. (See "AVR Butterfly" Talk Page).

Note: There is also a user called "Rhenn83" that is also deleting items.

A reorganization might be nice every now and then, but a wholesale mass-deletion is darned ignorant.


 * First of all Please Sign your comments. I have re-organised the external links section. Wikipedia should not serve as a Links Directory. For example there were links to multiple pages/pdfs within the Atmel.com site. There were also a number of dead sites. Also one site/group of sites Violate(s) the copyrights of others per contributors' rights and obligations -- Rehnn83 12:41, 7 January 2007 (UTC)  Oops wrong talk page - This should have been on the AVR Butteryfly page. But the same actually applies here. Why are there links Buterfly pages on the AVR page? WP is not a links directory. --Rehnn83 12:46, 7 January 2007 (UTC)

- Butterflies are AVRs in the same way that Corvettes are Chevies and due to their popularity they most certainly do belong in any article about Atmel AVRs.


 * However there is a seperate page for the Butterfly. Wikipedia is not a links directory. Again Please Sign Your Posts.--Rehnn83 10:43, 8 January 2007 (UTC)
 * Additional I have removed a number of links to non-English Websites. As per WP:EL --Rehnn83 13:12, 9 January 2007 (UTC)


 * In addition to keeping external links to a minimum, the WP:External links also specifically discourages links to discussion forums. I have noticed that there are quite a few such links. --Kms 13:07, 7 January 2007 (UTC)

- I happen to find discussion forums extremely useful, especially if one has a specific questions which is not addressed within a wiki. I always appreciate any links to discussion sites in any Wiki entry. What right to jerks like Rhenn83 or Egil have to decide what links are useful or not?

How to set up development tools for Linux
The following text, although a piece of valuable information, was moved from the article due to the host platform specific contents and rudimentary format---the text more properly belongs at e.g. a web resource to be pointed to in the External links section. --Wernher 00:47, 26 Jun 2005 (UTC)


 * Setup tools in Linux Debian box
 * login to root user
 * install avr development tools, using the command
 * prepare a simple avr serial programmer
 * examples to use the above programmer with uisp (assume in ATmega8535, by above simple serial programmer, printer port, debian linux box, hex file as avrm8ledtest.hex)
 * Read the Fuse   :
 * Erase Whole Chip :
 * Program Chip    :
 * if you buy a new chip, you cannot program this chip by the above serial programmer. You must have a avr parallel programmer to set the Fuse High Byte - SPIEN bit to logic LOW. Please take a look of page 236 of atmel datasheet 8535 as example. Then

'strange' instruction set
It is not strange that there is not a 'add immediate' in the AVR instruction set. The article in the german Wikipedia explains why this is so.

(de)

However, I am not familiar with the english language and therefore do not change the article. It would be kind if a native speaker could explain this. There is a link to an english pdf in the germen article that explains the genesis of the instruction set.

--Georg-Johann 12:55, 4 December 2005 (UTC)

"Strange" is an english idiom that in this context means that it differs from other instructions set and that it seems unusual (ie: strange) that they would choose to include SUBI and discard ADDI when the other-way-around would seem more natural. Most of us are used to the concept of adding a negative number to perform a subtraction ie: ADDI R16,(-2)

Removed excessive list of external links
-- Egil 08:30, 30 April 2006 (UTC)

AVR Forums & Discussion Groups

 * The Atmel AVR Discussion forum
 * The Atmel AVR Discussion Group
 * The Atmel AVR free books
 * The Atmel AVR Forum & Software Archive
 * Atmega128 - Spanish Forum

Machine Language Development

 * AVR Assembler Site
 * AVR Assembler Forum

C Language Development

 * GNU Development Environment for AVRs – by Rich Neswold
 * Procyon AVRlib - C Function Library
 * Programming AVRs with GCC – by Guido Socher

BASIC & Other AVR Languages

 * AVR BASIC & Other Languages

AVR Butterfly Specific

 * AVR Butterfly Site
 * AVR Butterfly Forum
 * Butterfy & Beginner's Forum

Other AVR Links

 * WinAVR – Open Source Suite for Windows & GCC
 * AVR Newbie Articles
 * Candle Automation Tutorials
 * Cornell Projects

History that led to "Atmel Norway"?
Atmel is a large multinational corporation. This article makes it look as if the AVR was developed in Norway by a Norway-based company.

Was this the case, and the company bought by Atmel, did Atmel set up the subsidiary, or is the truth still more convoluted? --Alvestrand 02:17, 3 June 2006 (UTC)

"Although the number of writes to EEPROM is practically unlimited, Atmel claims reliability only up to 100,000 writes."
The first part of the sentence is NOT true. EEPROMs are subject to "wear out" after a number of write cycles.... (At least, that I what I learned in my studies (el. engineering; focus microelectronics)... ASFAIK this is still that way) If someone disagrees, feel free to revert. See also topic EEPROM 195.37.212.221 09:52, 30 November 2006 (UTC)
 * Correct, that statement is false. EEPROMs can die. (BSEE, VLSI concentration) 75.46.134.13 05:24, 9 January 2007 (UTC)

Atmel's troubles vs. AVR article
Atmel's financial troubles seem irrelevant in an article about the AVR core. 05:33, 9 January 2007 (UTC)

- At first glance I might tend to agree with you, however anything that might affect the future availability for anyone considering investing time, energy and money into AVR development may want to research this further before proceeding. Personally, I would rather there be at least a brief mention of it at least until such time as their financial situation improves and/or they sell the AVR line to someone else. What say you?

Some Wiki stuff
This page really needs the following tag:

This does not cite its references or sources. You can help Wikipedia by introducing appropriate citations.

A casual google search will come up with the back-dated stock allegation, but not the selling off of the AVR branch, or the retrenchment of workers.

Plus, there should be a semi-protection tag at the top as well.

(edit: typo :) )

flexible is written as flaxible

Damien d 12:49, 15 January 2007 (UTC)