If you need assistance, please send an email to forum at 4hv dot org. To ensure your email is not marked as spam, please include the phrase "4hv help" in the subject line. You can also find assistance via IRC, at irc.shadowworld.net, room #hvcomm.
Support 4hv.org!
Donate:
4hv.org is hosted on a dedicated server. Unfortunately, this server costs and we rely on the help of site members to keep 4hv.org running. Please consider donating. We will place your name on the thanks list and you'll be helping to keep 4hv.org alive and free for everyone. Members whose names appear in red bold have donated recently. Green bold denotes those who have recently donated to keep the server carbon neutral.
Special Thanks To:
Aaron Holmes
Aaron Wheeler
Adam Horden
Alan Scrimgeour
Andre
Andrew Haynes
Anonymous000
asabase
Austin Weil
barney
Barry
Bert Hickman
Bill Kukowski
Blitzorn
Brandon Paradelas
Bruce Bowling
BubeeMike
Byong Park
Cesiumsponge
Chris F.
Chris Hooper
Corey Worthington
Derek Woodroffe
Dalus
Dan Strother
Daniel Davis
Daniel Uhrenholt
datasheetarchive
Dave Billington
Dave Marshall
David F.
Dennis Rogers
drelectrix
Dr. John Gudenas
Dr. Spark
E.TexasTesla
eastvoltresearch
Eirik Taylor
Erik Dyakov
Erlend^SE
Finn Hammer
Firebug24k
GalliumMan
Gary Peterson
George Slade
GhostNull
Gordon Mcknight
Graham Armitage
Grant
GreySoul
Henry H
IamSmooth
In memory of Leo Powning
Jacob Cash
James Howells
James Pawson
Jeff Greenfield
Jeff Thomas
Jesse Frost
Jim Mitchell
jlr134
Joe Mastroianni
John Forcina
John Oberg
John Willcutt
Jon Newcomb
klugesmith
Leslie Wright
Lutz Hoffman
Mads Barnkob
Martin King
Mats Karlsson
Matt Gibson
Matthew Guidry
mbd
Michael D'Angelo
Mikkel
mileswaldron
mister_rf
Neil Foster
Nick de Smith
Nick Soroka
nicklenorp
Nik
Norman Stanley
Patrick Coleman
Paul Brodie
Paul Jordan
Paul Montgomery
Ped
Peter Krogen
Peter Terren
PhilGood
Richard Feldman
Robert Bush
Royce Bailey
Scott Fusare
Scott Newman
smiffy
Stella
Steven Busic
Steve Conner
Steve Jones
Steve Ward
Sulaiman
Thomas Coyle
Thomas A. Wallace
Thomas W
Timo
Torch
Ulf Jonsson
vasil
Vaxian
vladi mazzilli
wastehl
Weston
William Kim
William N.
William Stehl
Wesley Venis
The aforementioned have contributed financially to the continuing triumph of 4hv.org. They are deserving of my most heartfelt thanks.
Registered Member #1430
Joined: Sun Apr 06 2008, 11:12AM
Location: Ã…rhus, Denmark
Posts: 102
hey all, i just finished this avr programmer, i got it to work(sort of). im tried programming: /* Blinker Demo */
/* Include useful pre-defined functions */ #include <avr/interrupt.h> // Defines pins, ports, etc to make programs easier to read #define F_CPU 100000UL // Sets up the default speed for delay.h #include <util/delay.h>
int main(){
DDRD = _BV(PD4); /* enable output on port D, pin 4 */
while(1){
PORTD = _BV(PD4); _delay_ms(1000);
PORTD &= ~_BV(PD4); _delay_ms(1000);
}
return(0); } to a Atmel ATtiny2313 using Avrdude and was succesfull but, when i connect an LED from pin 8 to pin 10 on my chip, nothing happens :(, any ideas?
Registered Member #914
Joined: Fri Jul 20 2007, 06:22PM
Location: South Bend, IN
Posts: 85
Well then. Before your software will work, your hardware must be working. Do you have a picture or electrical schematic of your circuit so far?
Fuse bits are internal registers that configure the microprocessor. They tell the micro what to use as a clock, how to handle power brownouts, to use JTAG debugging pins, and other things. If you don't have the fuse bits correct, the pins you think are I/O may be mapped to something else.
I would suggest downloading the spec sheet for your micro and start reading. I would also suggest logging into - lots of tutorials there.
Registered Member #1739
Joined: Fri Oct 03 2008, 10:05AM
Location: Moscow, Russia
Posts: 261
Well guys, I got pretty stupidly stuck with this one :( I damn wanted an atMega-based interruptor and I started that project finally. Wrote my own I2C routine for the lcd, tried it - it worked. So now only the easy things were left, but I managed to get stuck. I wanted to use the arrays for the symbol/gfx tables, but got trapped on this one: I assign a character like this: CHR32: .db ###, ###, .... , ### ;using a lable of "CHR32" for ascii32 character, then will just increment by 8 in draw code
;now in draw section ldi ZL, LOW(CHR32) ldi ZH, HIGH(CHR32) .....now some incrementing routine over Z...... ;and now: lpm mov tmp, r0 I2CSend ;(my I2C transfer routine)
And - I get different bugs! If I place the .db code at the beginning of my program, it works, but definitely the AVR is trying to execute the pixel row codes as commands, so if I add some more characters it just hangs up. If I place the .db after every other routine, the draw routine fails and gets some "random" data (most likely, the data from some wrong address). Any ideas or an advice how to properly grab the data initialized by that damn .db structure?
edit: sorry I'm lame - had to use not "label", but "label*2" - works well now
This site is powered by e107, which is released under the GNU GPL License. All work on this site, except where otherwise noted, is licensed under a Creative Commons Attribution-ShareAlike 2.5 License. By submitting any information to this site, you agree that anything submitted will be so licensed. Please read our Disclaimer and Policies page for information on your rights and responsibilities regarding this site.
AVR issues
