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Re: [AVR-Chat] Atmega128 and rtl8019

2008-04-25 by Robert Adsett

At 08:04 AM 4/25/2008 -0700, mago Umandam wrote: >i have been searching the net and seems im giving up using atmega128. >Rabbit processor is easier to interafce with dynamic c compiler having >more documentation and libraries for ethernet applications. One thing to keep in mind D

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Re: [AVR-Chat] Atmega128 and rtl8019

2008-04-25 by mago Umandam

i have been searching the net and seems im giving up using atmega128. Rabbit processor is easier to interafce with dynamic c compiler having more documentation and libraries for ethernet applications. regards, mago David Kelly wrote: On Fri, Apr 25, 2008 at 03:11:17AM -0000, magz

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Re: [AVR-Chat] Atmega128 and rtl8019

2008-04-25 by David Kelly

On Fri, Apr 25, 2008 at 03:11:17AM -0000, magzky02 wrote: > > hi guys, i am going to interface the atmega128 to the ethernet > controller RTL8019. I am using codevision compiler. Is there a library > for this? Anyone knows a avr compiler with library to communicate with > etherne

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[AVR-Chat] Re: Inexpensive AVR-ISP on e-bay

2008-04-25 by davec

>Looks nice, at a nice price. However, I'm kind of reluctant buying >equipment using an RS232 interface. Much preferred it being USB. > >Do you know of one that is USB? See original post in this thread. Dave

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Re: Inexpensive AVR-ISP on e-bay

2008-04-25 by stevech11

re below... I'm using it on an "old" mega128, 16MHz crystal. --- In AVR-Chat@yahoogroups.com, "Don Kinzer" wrote: > > --- In AVR-Chat@yahoogroups.com, "stevech11" wrote: > > I recently purchased this simple > > Atmel compatible JTAG ICE device. > > Unfortunately, it's not compati

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Re: [AVR-Chat] Atmega128 and rtl8019

2008-04-25 by mago Umandam

Oops, i will search that forum :) John Samperi wrote: At 01:11 PM 25/04/2008, you wrote: >I am using codevision compiler. Is there a library for this? This would be better asked at the Codevision forum, would it not? Aren't you a subscriber to that forum? Regards John Samperi ***

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Re: [AVR-Chat] Atmega128 and rtl8019

2008-04-25 by Enki

Maybe thihs helps: http://members.home.nl/bzijlstra/software/examples/RTL8019as.htm Mark Jordan On 25 Apr 2008 at 3:11, magzky02 wrote: > > hi guys, i am going to interface the atmega128 to the ethernet > controller RTL8019. I am using codevision compiler. Is there a library > fo

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Re: [AVR-Chat] Atmega128 and rtl8019

2008-04-25 by John Samperi

At 01:11 PM 25/04/2008, you wrote: >I am using codevision compiler. Is there a library for this? This would be better asked at the Codevision forum, would it not? Aren't you a subscriber to that forum? Regards John Samperi ********************************************************

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Re: Inexpensive AVR-ISP on e-bay

2008-04-25 by Don Kinzer

--- In AVR-Chat@yahoogroups.com, "stevech11" wrote: > I recently purchased this simple > Atmel compatible JTAG ICE device. Unfortunately, it's not compatible with newer devices, i.e. it's not JTAG MkII compatible. If you're working with the devices that it supports, though, it lo

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Re: Inexpensive AVR-ISP on e-bay

2008-04-25 by stevech11

I have two USB to serial adapters. I chose based on ones that use the FTDI chipset (logo on package, usually). Haven't had issues other than some odd non-AVR-related software that tries to toggle RTS/DTR at the milisecond level. Currently, I have the AVR under test's serial port

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Re: Inexpensive AVR-ISP on e-bay

2008-04-25 by brewski922

Looks nice, at a nice price. However, I'm kind of reluctant buying equipment using an RS232 interface. Much preferred it being USB. Do you know of one that is USB? Do you think a USB RS232 adapter, like SmileyMicros has might work? Mike --- In AVR-Chat@yahoogroups.com, "stevech11

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Atmega128 and rtl8019

2008-04-25 by magzky02

hi guys, i am going to interface the atmega128 to the ethernet controller RTL8019. I am using codevision compiler. Is there a library for this? Anyone knows a avr compiler with library to communicate with ethernet controller? I think this would be a dificult task to do it by mani

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Re: Inexpensive AVR-ISP on e-bay

2008-04-25 by stevech11

Not on e-Bay, but I recently purchased this simple Atmel compatible JTAG ICE device. Works with AVR Studio. easy to build. $17. http://www.nkcelectronics.com/avr-jtag-ice-clone-debugger-programmer-kit.html

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RE: [AVR-Chat] Design Question w/IR LED Series

2008-04-24 by Tim Mitchell

Bryan Martin wrote: > Quick question, I am trying to start a simple mini IR LED array but > second guessing myself. > > IR LED Info: > Forward Voltage: 1.2V (max 1.6v) > Forward Current: 100mA (max 1.2A) > > I am hooking 4 LEDs direct to 12V DC power in series w/a resistor of > 8

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Design Question w/IR LED Series

2008-04-24 by Bryan Martin

Quick question, I am trying to start a simple mini IR LED array but second guessing myself. IR LED Info: Forward Voltage: 1.2V (max 1.6v) Forward Current: 100mA (max 1.2A) I am hooking 4 LEDs direct to 12V DC power in series w/a resistor of 81ohms. Thing is the resistor is gettin

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Re: Design Question w/IR LED Series

2008-04-24 by Graham Davies

--- In AVR-Chat@yahoogroups.com, "Bryan Martin" wrote: > ... I want to add an additional > 4 LEDs. Would it be better to ... > go w/2 X 4 LED series or move to > 8 LEDs w/a different resistor? It depends (it always does). If your 12 volt source is stable (stays close to 12 volts

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Re: [AVR-Chat] Re: Inexpensive AVR-ISP on e-bay

2008-04-23 by John Samperi

At 05:16 PM 23/04/2008, you wrote: >And it's USB... ...and I bet is not Studio compatible. "For a few dollars more", hey great title for a movie, you can get the REAL Atmel AVRISP. Regards John Samperi ******************************************************** Ampertronics Pty. Ltd

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RE: [AVR-Chat] Re: Free Resource USB AVR Downloader

2008-04-22 by Dao Viet Dung

Check this link: http://pinokio3000.narod.ru/my_designs/AVR910_USB_Programmer_eng.htm Tim Mitchell wrote: iddhien wrote: > Where I can get AVRStudio programmer? The connection to computer with > USB or other?, because my NoteBook the parallel port or serial port > is not availabl

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RE: [AVR-Chat] Re: Free Resource USB AVR Downloader

2008-04-22 by Tim Mitchell

iddhien wrote: > Where I can get AVRStudio programmer? The connection to computer with > USB or other?, because my NoteBook the parallel port or serial port > is not available, The availabele port is only USB. > You need an "AVR-ISP mk2" device* to program the AVR. This is USB in

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Re: [AVR-Chat] Re: Free Resource USB AVR Downloader

2008-04-22 by John Samperi

At 06:08 PM 22/04/2008, you wrote: >Where I can get AVRStudio programmer? From Atmel. About 90MB. NOT just a programmer but a full IDE. What are you using now to develop your programs? >The connection to computer with USB or other?, USB or RS232 only. However it will ONLY support

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Re: Free Resource USB AVR Downloader

2008-04-22 by iddhien

Where I can get AVRStudio programmer? The connection to computer with USB or other?, because my NoteBook the parallel port or serial port is not available, The availabele port is only USB. Regards, DampoAwang --- In AVR-Chat@yahoogroups.com, John Samperi wrote: > > At 04:00 PM 21

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Re: Grr, steep learning curve!!

2008-04-21 by John

Paul, I understand your desire to test it on real hardware. I can not help you much more with the SP12, as I do not have one. However, as you are using Studio, you can set your target to Emulate and run the program inside the emulator on the PC (without hooking up to any hardware

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Re: [AVR-Chat] Free Resource USB AVR Downloader

2008-04-21 by John Samperi

At 04:00 PM 21/04/2008, you wrote: >Does anyone know where I Can Find the free resource for USB AVR Downloader? If its a real Atmel programmer you can get AvrStudio. What king of "AVR Downloader" do you have? Regards John Samperi **************************************************

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Re: Grr, steep learning curve!!

2008-04-19 by stevech11

the constant "true" is not part of the C language. That's why you got the error. You can: 1) code: #define true 1 2) code while(1) note that your do/while loop does not toggle the LEDs on/off. There are plenty of examples of how to do that, to include delay code so the on/off rat

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Grr, steep learning curve!!

2008-04-19 by Paul Sinclair

Well, after spending hours trying to get something working I have had to come crawling back. The piece of code I have been trying to get to work is: //---------------------------------------------------------------------- // Titel : Beispiel LED an für myAVR-Board //-------------

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RE: [AVR-Chat] Re: Programming with my "My Avr"

2008-04-18 by Paul Sinclair

From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf Of John Sent: 19 April 2008 00:18 To: AVR-Chat@yahoogroups.com Subject: [AVR-Chat] Re: Programming with my "My Avr" >If you are using the latest version of AVR Studio, you can install >WinAVR. Recent versi

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RE: [AVR-Chat] Re: Programming with my "My Avr"

2008-04-18 by Paul Sinclair

Once again I return. I have gotten the sp12 to run grand! Thanks for the link, it connects straight up, and away we go. But which program should I use to convert my c code into hex for programming vioa my sp12 programmer. I tried using studio, but it asks me what device I am usin

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Re: Programming with my "My Avr"

2008-04-18 by John

If you are using the latest version of AVR Studio, you can install WinAVR. Recent versions of AVR Studio play very nicely with WinAVR. The latest version of Studio is also aware of the entire AVR family. If you are comfortable with learning the use of the MAKE program, you don't

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RE: [AVR-Chat] Re: Programming with my "My Avr"

2008-04-17 by Paul Sinclair

Thanks john, Its becoming very abvious I should have bought a proper starter kit. I find it hard to get myself to work at the best of times. But when I have to work to get working, grrr!! Cheers, Paul. From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf Of

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Programming with my "My Avr"

2008-04-17 by Paul Sinclair

Hello all. I FINALLY got a lead for my programmer. So tonight I start to learn to work with avrs. I have some some research, and according to the manual, the unit is an SP-12 Compatible programmer. Is this a fairly common type of programmer? And one last question, I was going to

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Re: Programming with my "My Avr"

2008-04-17 by John

That is a parallel programmer. AFAIK, Studio only supports USB or serial programmers. That said, googling for AVR SP12 programmer yielded this link: http://www.attiny.com/sp12.htm There is also avrdude: http://www.bsdhome.com/avrdude/ http://savannah.nongnu.org/projects/avrdude/

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Re: [AVR-Chat] Re: Help for circuit design

2008-04-17 by David VanHorn

On Wed, Apr 16, 2008 at 9:27 PM, Graham Davies wrote: > --- In AVR-Chat@yahoogroups.com, "David VanHorn" wrote: > > > The chip capacitance, like the > > loading caps, are in series, > > from the crystal's point of > > view, so 5pF is reasonable. > > Then, your algorithm should be

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Re: [AVR-Chat] Re: Help for circuit design

2008-04-17 by David VanHorn

> David has described how to pick the load capacitors if a) the crystal > is parallel reasonant (otherwise, the data sheet won't give a > capacitance), b) 5 pF is a good estimate of the parasitic capacitance > at each terminal (I don't think it is, according to the ATmega32 data

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Re: Help for circuit design

2008-04-16 by Graham Davies

--- In AVR-Chat@yahoogroups.com, "David VanHorn" wrote: > The chip capacitance, like the > loading caps, are in series, > from the crystal's point of > view, so 5pF is reasonable. Then, your algorithm should be to subtract 5 pF before you double. Once you've doubled, you're looki

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Re: Help for circuit design

2008-04-16 by Graham Davies

--- In AVR-Chat@yahoogroups.com, rakesh modi wrote: > ... the problem is that my crystal > frequency is not stable everytime ... There's some confusion here about how to pick the load capacitors for a parallel reasonant crystal. It is certainly *not* true that "A higher value cap

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Re: [AVR-Chat] Re: Help for circuit design

2008-04-16 by David VanHorn

On Wed, Apr 16, 2008 at 1:48 PM, wrote: > With this much frequency change, it appears that the crystal is dead > or unconnected, and the oscillator is running on capacitance only. > Something is squirrely, that's for sure. Is the processor's VCC properly bypassed? Crystal cap sel

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Re: [AVR-Chat] Re: Help for circuit design

2008-04-16 by kholt@sonic.net

With this much frequency change, it appears that the crystal is dead or unconnected, and the oscillator is running on capacitance only. Ken On Wed 04/16/08 6:28 AM , "Dennis Clark" dlc@frii.com sent: > Fuse setting are ok. But the problem is that my crystal frequency is not > sta

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Re: [AVR-Chat] Re: Help for circuit design

2008-04-16 by Dennis Clark

> Fuse setting are ok. But the problem is that my crystal frequency is not > stable everytime. For example if i am using a crystal of 1.8432MHz with > 22pf capacitor the output frequency is nearly 2.2 MHz, but when i replace > the capacitor by 27pf the output frequency is nearly

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Re: [AVR-Chat] Re: Help for circuit design

2008-04-16 by Roy E. Burrage

If you look in the files section of the list home page at yahoo, you should see a document that is rather in depth about selecting capacitors for use with crystal oscillators. I think David VanHorn was the author. REB rakesh modi wrote: > Fuse setting are ok. But the problem is t

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Re: [AVR-Chat] Re: Help for circuit design

2008-04-16 by rakesh modi

Fuse setting are ok. But the problem is that my crystal frequency is not stable everytime. For example if i am using a crystal of 1.8432MHz with 22pf capacitor the output frequency is nearly 2.2 MHz, but when i replace the capacitor by 27pf the output frequency is nearly 1.9 Mhz.

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Re: [AVR-Chat] Re: fine

2008-04-16 by dlc

If I had a dime for every time that the various tool suites that I've used have balked at what I considered a reasonable request, well, you know the rest. I've yet to use a really solid one, and I've yet to use one that is totally useless. But, well there you have it. DLC David V

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Re: [AVR-Chat] Re: fine

2008-04-16 by David VanHorn

On Tue, Apr 15, 2008 at 9:32 PM, Steven Hodge wrote: > Thank you, David. You are very tolerant on this list. He would have > been history long ago on the one I am joint owner on. Steve. I do understand being extremely frustrated with Studio... :( But he definitely crossed the lin

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Re: [AVR-Chat] Re: fine

2008-04-16 by John Samperi

At 10:46 AM 16/04/2008, you wrote: >Former subscriber! ps I just realized that the "gentleman" is Tom Keller. We did try to help him before. I thought his topic titles were familiar. Regards John Samperi ******************************************************** Ampertronics Pty. L

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Re: [AVR-Chat] Re: fine

2008-04-16 by John Samperi

At 10:46 AM 16/04/2008, you wrote: >Former subscriber! Surely he is not real, must be working for Microchip and try to create mayhem here :-) He has issues. Complains about Atmel not supplying Studio for Linux and then he can't run Linux anyway LOL. I wonder why he has so many At

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RE: [AVR-Chat] Re: fine

2008-04-16 by Steven Hodge

Thank you, David. You are very tolerant on this list. He would have been history long ago on the one I am joint owner on. Steve. Former subscriber! [Non-text portions of this message have been removed]

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