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Extra Program Space

2005-12-21 by jme_cd

I am writing a program for my atmega8 but have gone over the limit, that is my program is too big. Is there anyway that i can add an extra eeprom chip or something that i can store all the code on and call it from there? thanks jamie

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Re: [AVR-Chat] I cant get started

2005-12-21 by kelvin kooger

John, By the way how old are you ? 50s or 60s ? John Samperi wrote: zAt 11:00 PM 20/12/2005, you wrote: >Hi, I'm probably the oldest living active programmer in Australia Someone may challenge you :-) >I have done a lot with VB6 and assembly with the old 6502's 25 years Having us

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RE: [AVR-Chat] GCC-Avg and pure assembly

2005-12-21 by Larry Barello

I do that all the time: high speed encoders, or special low-latency interrupt handlers in assembly (pure) using GAS (Gnu Assembler). Read the WinAvr GCC FAQ and look at the GAS manual. The only restrictions, at the moment, is that if you want to do symbolic debugging with the sim

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Re: [AVR-Chat] I cant get started

2005-12-20 by John Samperi

At 11:00 PM 20/12/2005, you wrote: >have a go at AVRmega16's before I die - hopefully >using Bascom basic. oops I missed that :-) Regards John Samperi ******************************************************** Ampertronics Pty. Ltd. 11 Brokenwood Place Baulkham Hills, NSW 2153 AUST

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Re: [AVR-Chat] I cant get started

2005-12-20 by John Samperi

zAt 11:00 PM 20/12/2005, you wrote: >Hi, I'm probably the oldest living active programmer in Australia Someone may challenge you :-) >I have done a lot with VB6 and assembly with the old 6502's 25 years Having used the 6502 you will find the AVR range very easy to use. Don't list

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Re: [AVR-Chat] I cant get started

2005-12-20 by John Samperi

At 01:11 AM 21/12/2005, you wrote: > programming a 2650 via front panel toggle switches so we may not >be that far apart. Finally...another person that admits to having used the good old signetic 2650.... :-) Regards John Samperi **************************************************

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Re: I cant get started

2005-12-20 by sm5glc

Ted, if I understand you correctly you are fluent with VB and have a good knowledge on how microprocessors works, you should have very few problems getting the mega16 to do what you command :) I am not a programmer myself but dabbling with BASCOM and find it a very easy to get go

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GCC-Avg and pure assembly

2005-12-20 by dlc@frii.com

Hi all, I've written code using the gcc-avr compiler in C for various projects, but I have some code written for Tiny13 and Tiny11 chips that are straight assembly. Has anyone written pure assembly using gcc-avr? Can we use just the assembler to write code simply in the gcc-avr f

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Re: [AVR-Chat] I cant get started

2005-12-20 by Jim Wagner

Try www.AVRBeginners.net. Also www.AVRFreaks.net has lots of complete projects in their archives. Jim --------------------------------------------------------------- The Think Different Store http://www.thinkdifferentstore.com/ For All Your Mac Gear ------------------------------

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RE: [AVR-Chat] I cant get started

2005-12-20 by Larry Barello

The www.seattlerobotics.org/WorkshopRobot and my www.barello.net/ARC have a suite of sample programs from very simple to relatively complex, that you can use to get started. WinAvr has some samples and a great FAQ that covers many start-up issues with AVR & C. Programming one CPU

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Re: [AVR-Chat] I cant get started

2005-12-20 by Zack Widup

On Wed, 21 Dec 2005, Don Ingram wrote: > > Ted, > > Can't help with Bascom but if you want to add a bit more to the challenge > there > is always C. There is a good book doing the rounds of the tech colleges > and > uni's. "Embedded C Programming and the Atmel AVR" by Barnett, Co

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Re: [AVR-Chat] I cant get started

2005-12-20 by Don Ingram

Ted Smith wrote: > Hi, I'm probably the oldest living active programmer in Australia and > have decided to have a go at AVRmega16's before I die - hopefully > using Bascom basic. > I have done a lot with VB6 and assembly with the old 6502's 25 years > ago but can't find anywhere

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I cant get started

2005-12-20 by Ted Smith

Hi, I'm probably the oldest living active programmer in Australia and have decided to have a go at AVRmega16's before I die - hopefully using Bascom basic. I have done a lot with VB6 and assembly with the old 6502's 25 years ago but can't find anywhere any concise info on how to

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RE: [AVR-Chat] Re: PC COM Ports

2005-12-20 by stevech

Amateur radio operator people transmit signals for fun and public service rather than for profit motives, the latter being what a "professional" radio operator does. That's the intent of the term amateur radio operator. Steve (licensed ham since 1963) -----Original Message----- F

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-19 by Thomas Keller

Tom Becker wrote: > --- In AVR-Chat@yahoogroups.com, Russell Shaw wrote: > > Yes, for simplex which is one-way only, and half-duplex. > My take is that what you are implementing, with your two wires and > reversing ends, a pair of proprietary modems. RS232 stops at the DB25 > con

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Re: lookin for a project

2005-12-18 by Dave Mucha

> but i m still a beginner in AVR.. got really freaked out coz cant get anythin useful... still no idea wat a > security dongle is n how to construct it using AT MEGA16 or TINY26 assembly.. > What flags this for me is that you are jumping from just being introduced to the chips a

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Re: PC COM Ports

2005-12-18 by Tom Becker

--- In AVR-Chat@yahoogroups.com, Russell Shaw wrote: > Yes, for simplex which is one-way only, and half-duplex. My take is that what you are implementing, with your two wires and reversing ends, a pair of proprietary modems. RS232 stops at the DB25 connector to your modem and res

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Re: [AVR-Chat] Re: lookin for a project

2005-12-18 by Thomas Keller

Zack Widup wrote: > On Sat, 17 Dec 2005, kushmakar sharma wrote: > > kushie4u wrote: > > > thanx dude... > > > but i m still a beginner in AVR.. got really freaked out coz cant > get anythin useful... still no idea wat a > > > security dongle is n how to construct it using AT MEG

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-18 by Zack Widup

On Sun, 18 Dec 2005, Russell Shaw wrote: > > >>I know of several radio hams that run rs232 from their radio room to > >>things outside and up radio towers (10-30m). > > > > With all due respect to radio amateurs, who, as a group, have > > contributed greatly to the advancment of

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Re: [AVR-Chat] Re: lookin for a project

2005-12-18 by Zack Widup

On Sat, 17 Dec 2005, kushmakar sharma wrote: > > kushie4u wrote: > > thanx dude... > > but i m still a beginner in AVR.. got really freaked out coz cant get anythin useful... still no idea wat a > > security dongle is n how to construct it using AT MEGA16 or TINY26 assembly.. > h

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Re: [AVR-Chat] Re: lookin for a project

2005-12-18 by kushmakar sharma

Peter Jakacki wrote: If you have no idea and you haven't even googled and yet you want to tackle the advanced stuff, then who ends up doing all the work? I respond to posts in many other groups and your request is not at all uncommon but put yourself in our place. Yes, we may kno

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-18 by Russell Shaw

Peter Jakacki wrote: > Russell Shaw wrote: > >>Non-termination of such long lengths and of uncontrolled impedance >>characteristics is asking for trouble. I'd only do that if i verified >>the received waveform with a cro. > > cro??? Of course I verified it with a scope and though

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-18 by Don Ingram

>>Ground wire *must* be used for reliability. > > No, you are assuming that current will flow, I do design professional > equipment for a living, not just for my garage. If my equipment is not > line-powered then I like to opto-isolate the 485. How can current flow > in these two

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-18 by Russell Shaw

Russell Shaw wrote: > Tom Becker wrote: > >> >> ... Unless you are making a unidirectional >> >>>>connection, you need at LEAST 3 wires for a proper RS232-C link. >>>>Ground, TX and RX. >>> >>>That's what i said before, unless the line is half-duplex. >> >>Do you mean unless the

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-18 by Russell Shaw

Tom Becker wrote: > >> ... Unless you are making a unidirectional > >>>connection, you need at LEAST 3 wires for a proper RS232-C link. >>>Ground, TX and RX. >> >>That's what i said before, unless the line is half-duplex. > > Do you mean unless the line is simplex? Yes, for simpl

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-17 by Peter Jakacki

Russell Shaw wrote: > Non-termination of such long lengths and of uncontrolled impedance > characteristics is asking for trouble. I'd only do that if i verified > the received waveform with a cro. cro??? Of course I verified it with a scope and though I didn't "need" termination

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-17 by Tom Becker

>> ... Unless you are making a unidirectional >>connection, you need at LEAST 3 wires for a proper RS232-C link. >>Ground, TX and RX. > That's what i said before, unless the line is half-duplex. Do you mean unless the line is simplex? Tom

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-17 by Russell Shaw

Thomas Keller wrote: > Russell Shaw wrote: > >>Peter Jakacki wrote: >> >>>Russell Shaw wrote: >>> >>>>It is no different now than then. Back then, RS232 was run around and >>>>between buildings for terminals and mainframes. If you still want to >>>>run those distances, you'll wan

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Re: [AVR-Chat] Re: lookin for a project

2005-12-17 by Peter Jakacki

If you have no idea and you haven't even googled and yet you want to tackle the advanced stuff, then who ends up doing all the work? I respond to posts in many other groups and your request is not at all uncommon but put yourself in our place. Yes, we may know how to do it, and y

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-17 by Thomas Keller

Russell Shaw wrote: > Peter Jakacki wrote: > > Russell Shaw wrote: > >>It is no different now than then. Back then, RS232 was run around and > >>between buildings for terminals and mainframes. If you still want to > >>run those distances, you'll want +/-15V > > No, it is differen

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Re: [AVR-Chat] lookin for a project

2005-12-17 by Thomas Keller

Peter Jakacki wrote: > kushmakar sharma wrote: > > hey freaks... > > lookin for a project...SECURITY DONGLE... using AVR assembly... > > preferrably..MEGA16 or TINY26...plz help me out.... > > kushie4u > Yo freak dude, we would help you but we are busy fighting amongst > ourselve

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-17 by Russell Shaw

Peter Jakacki wrote: > Russell Shaw wrote: > >>I run rs232 from my workroom to the garage (30m). > > I'm sorry to hear that, I'd do the same if I had nothing else. I would > use RS-422 (not 485) "IF" I needed higher baud rates. The cables are > usually 4-core + shield so I would

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Re: lookin for a project

2005-12-17 by kushie4u

--- In AVR-Chat@yahoogroups.com, Peter Jakacki wrote: > > kushmakar sharma wrote: > > hey freaks... > > lookin for a project...SECURITY DONGLE... using AVR assembly... > > preferrably..MEGA16 or TINY26...plz help me out.... > > > > kushie4u > > Yo freak dude, we would help you bu

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RE: [AVR-Chat] lookin for a project

2005-12-17 by Mark Jordan

Direct download: http://www.elektor.fr/Portals/0/Magazine/Downloads/2005/040267-11.zip On 17 Dec 2005 at 23:15, Alex Shepherd wrote: > > The October 2005 issue of the Elektor Magazine has a project that might be what you are > wanting. > > It's a PIC project called a "Colossus Jr

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RE: [AVR-Chat] lookin for a project

2005-12-17 by Alex Shepherd

The October 2005 issue of the Elektor Magazine has a project that might be what you are wanting. It's a PIC project called a "Colossus Jr.". It looks to implement a version of the DES encryption method and has a secret key stored in the device which it uses to perform some securi

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Re: [AVR-Chat] lookin for a project

2005-12-17 by Peter Jakacki

kushmakar sharma wrote: > hey freaks... > lookin for a project...SECURITY DONGLE... using AVR assembly... > preferrably..MEGA16 or TINY26...plz help me out.... > > kushie4u Yo freak dude, we would help you but we are busy fighting amongst ourselves to see who would be most privil

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-17 by Peter Jakacki

Russell Shaw wrote: > I run rs232 from my workroom to the garage (30m). I'm sorry to hear that, I'd do the same if I had nothing else. I would use RS-422 (not 485) "IF" I needed higher baud rates. The cables are usually 4-core + shield so I would not be at any loss. Termination i

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lookin for a project

2005-12-17 by kushmakar sharma

hey freaks... lookin for a project...SECURITY DONGLE... using AVR assembly... preferrably..MEGA16 or TINY26...plz help me out.... kushie4u __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-17 by Russell Shaw

John Samperi wrote: > At 12:27 PM 17/12/2005, you wrote: > >>RS485 requires three wires but rs232 only needs two. > > ??? How do you figure that? Let's see RS232 minimum Tx,Rx and > return ground. Uni-directional or half-duplex (with tristate TX) only needs two wires. Full duplex

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-17 by John Samperi

At 12:27 PM 17/12/2005, you wrote: >RS485 requires three wires but rs232 only needs two. ??? How do you figure that? Let's see RS232 minimum Tx,Rx and return ground. RS485 data+, data- and return ground. If you use a transformer coupled RS485 you don't need ground (2 wires) Regar

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-17 by David Kelly

On Dec 16, 2005, at 7:51 PM, Peter Jakacki wrote: > Well I don't mind having conversations with Luddites but I really > don't > expect them to be any different either. I do design to meet the > standard, I have to, but it doesn't mean I agree with it. How do > standards get set a

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-17 by Peter Jakacki

Well I don't mind having conversations with Luddites but I really don't expect them to be any different either. I do design to meet the standard, I have to, but it doesn't mean I agree with it. How do standards get set and how do they get updated unless people actually question t

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-17 by Russell Shaw

Peter Jakacki wrote: > Russell Shaw wrote: > >>It is no different now than then. Back then, RS232 was run around and >>between buildings for terminals and mainframes. If you still want to >>run those distances, you'll want +/-15V. > > No, it is different and that is just the poin

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RE: [AVR-Chat] Re: PC COM Ports

2005-12-17 by stevech

If you don't design to meet the standard, how can you assure your thing will interoperate, widely? Geesh. Get off the soap box. -----Original Message----- From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf Of Peter Jakacki Sent: Thursday, December 15, 2005

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-16 by Peter Jakacki

Russell Shaw wrote: > > It is no different now than then. Back then, RS232 was run around and > between buildings for terminals and mainframes. If you still want to > run those distances, you'll want +/-15V. No, it is different and that is just the point. Nobody runs RS-232 betwe

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-16 by Russell Shaw

Russell Shaw wrote: > Thomas Keller wrote: > >>Russell Shaw wrote: >> ... > LVDS only works over a few metres length without repeaters and > equalizers. RS232 can do a few km. > > There is much less ground noise in the ~400MHz LVDS frequency range and the > short cable lengths it

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-16 by Russell Shaw

Thomas Keller wrote: > Russell Shaw wrote: > >>Peter Jakacki wrote: >> >>>Ok, this is good, it's getting meaty and I like some of your figures. >>>This only takes into account a discrete BC548 and not the typical input >>>transistor of the receiver which also happens to be buffer

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Re: [AVR-Chat] Help debugging LCD display issues from harsh

2005-12-16 by harsh vaidya

did u tried using a 16x2 line lcd. if u would like to interface it reply me i will send u a LCD.h file by which u will feel easy working with LCD __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http:

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Re: [AVR-Chat] Re: PC COM Ports

2005-12-16 by Thomas Keller

Russell Shaw wrote: > Peter Jakacki wrote: > > Ok, this is good, it's getting meaty and I like some of your figures. > > This only takes into account a discrete BC548 and not the typical input > > transistor of the receiver which also happens to be buffered by two > > other trans

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