AVRButterFly at Yahoo! Groups

ADC Question

Martyn — Mon, 11 Jan 2010 21:49:26 GMT

Hi all, My first post (and a newbie), please be gentle with me... I am trying to use the ADC on the butterfly board. I have set REFS0 and REFS1 both to 0 to

How to purchase a AVR Butterfly, in Australia, cheaply

jmercer1820 — Mon, 11 Jan 2010 03:47:08 GMT

Hi I am a beginner, and want to start experimenting with the Butterfly. Just wondering, if anyone knows how I can purchase one, in Australia, as cheaply as

Re: electronic elements

hossam Anwar — Tue, 08 Dec 2009 06:07:22 GMT

To encourage beginners in electronics just learning the science of electronics using question(what do you know about.....?) ... From: Bill

Re: please help

Bill — Tue, 08 Dec 2009 05:03:06 GMT

Hi Sorry that other one was japanese, here's the english one http://rs479.rapidshare.com/files/155456576/C_Programming_for_AVR_Microcontrollers.rar Bill

Re: electronic elements

Bill — Tue, 08 Dec 2009 04:27:49 GMT

Sorry about the book it was in japanese. But what do you mean by what do you know about these electronic parts. They all can be looked up in wikipedia. As for

Re: please help

Bill — Tue, 08 Dec 2009 04:08:56 GMT

http://rs651.rapidshare.com/files/214670885/Embedded_C_And_Atmel_Avr.rar Have fun Bill

COMPOSES MUSIC in ASM (266 Bytes)

retr0dan — Tue, 10 Nov 2009 18:16:00 GMT

[CODE] ;---------------------------------------------------------------------; ; MAESTRO.ASM for AVR BUTTERFLY ; ;

RANDOM NUMBERS PRODUCE WHITE NOISE in ASM (90 Bytes)

retr0dan — Mon, 02 Nov 2009 02:57:27 GMT

This 90 byte program produces White Noise from the ButterFly Speaker. I based my random number generator similar to the Linear Congruency Algorithm. You can

90 HR CLOCK II in ASM (462 BYTES) - More Accurate

retr0dan — Tue, 27 Oct 2009 23:53:59 GMT

This versions of the 90 Hour Clock uses the more accurate 32,768Hz on-board crystal. By using a prescaler/divider of 128 and waiting for the clock to overflow

90 HR CLOCK Iin ASM (462 BYTES)

retr0dan — Tue, 27 Oct 2009 01:10:49 GMT

[FONT=Courier] Show time on 6 character LCD screen upto 90 hrs. [code] ;--------------------------------------------------; ; CLOCK.ASM for AVR BUTTERFLY

TICK OFF THE SECONDS PROGRAM in ASM (76 bytes)

retr0dan — Mon, 26 Oct 2009 23:02:46 GMT

We set the system clock to 2MHz (the speed Butterflys are as shipped). If we set the timer0 prescaller to /1024 then use the overflow mode, that will give us

8 BIT TIMER CTC INTERUPT IN ASM (56 BYTES)

retr0dan — Mon, 26 Oct 2009 01:18:54 GMT

;--------------------------------------------------; ; INTERUPT_TIMER.ASM for AVR BUTTERFLY ; ; AUTHOR: DANIEL J. DOREY (RETRODAN AT AVR FREAKS) ;

WAIT-FOR TIMER2 SOUND DEMO (42 Bytes)

retr0dan — Thu, 22 Oct 2009 02:42:00 GMT

This demonstrates the use of timer-0 in CTC mode that polls a flag when timer reaches a pre-determined amount over-and-over to produce different sounds.

WAIT-FOR TIMER SOUND DEMO (34 Bytes)

retr0dan — Tue, 20 Oct 2009 21:58:13 GMT

Program shows use of timer 0 as a wait-for timer in Assembler for the AVR Butterfly/Atmega169 to emit a tone on the speaker. (approx 35 bytes)

SCROLL LONG MESSAGE ACROSS LCD SCREEN in ASM (442 Bytes)

retr0dan — Tue, 20 Oct 2009 16:35:13 GMT

Scroll a long message defined by a .db "Message." terminated with a period across the LCD screen on the Butterfly. Approx 440 bytes.