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RE: [AVR-Chat] Problem reading PIND.0 on Mega16 with 16MHz Crystal

2006-02-06 by Lasse Madsen

> I have a very weird problem with my Mega16 (DIP40) running a 16MHz > crystal (22pF loading caps). Try adding (if possible) a 10R resistor in series with the pin and a 18pF capacitor to grund as close to the pin as possible. >22pf is a little low for most HC49 crystals, more com

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Re: [AVR-Chat] Problem reading PIND.0 on Mega16 with 16MHz Crystal

2006-02-06 by Kathy Quinlan

kernels_nz wrote: > Hi Guys, > > I have a very weird problem with my Mega16 (DIP40) running a 16MHz > crystal (22pF loading caps). > > Im trying to read incoming data on PIND.0 very rapidly (approx 150kHz) > and the chip just doesnt seem to work correctly. It works perfectly if >

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Problem reading PIND.0 on Mega16 with 16MHz Crystal

2006-02-06 by kernels_nz

Hi Guys, I have a very weird problem with my Mega16 (DIP40) running a 16MHz crystal (22pF loading caps). Im trying to read incoming data on PIND.0 very rapidly (approx 150kHz) and the chip just doesnt seem to work correctly. It works perfectly if I use either PIND.7 or PIND.2 (th

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Re: AVR Development Board?

2006-02-06 by Ray

--- In AVR-Chat@yahoogroups.com, "Arif Deshmukh" wrote: > > > Dear Members, > I am look out for AVR based development board. It should be low cost. Hoes investing in STK-500 board and which C compiler comes with STK-500. Please send me info. > > Thanking You, > Deshmukh > Try: ht

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Re: AVR Development Board?

2006-02-06 by Ray

--- In AVR-Chat@yahoogroups.com, "Arif Deshmukh" wrote: > > > Dear Members, > I am look out for AVR based development board. It should be low cost. Hoes investing in STK-500 board and which C compiler comes with STK-500. Please send me info. > > Thanking You, > Deshmukh > Try: ht

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Re: AVR Development Board?

2006-02-06 by brewski922

> I am look out for AVR based development board. It should be low cost. Low cost is a general term, the STK-500 is about $80. It use to come with 8515 microcontroller IC. Chris, lcdpublishing, just purchased one. Chris what IC came with your STK-500? >which C compiler comes with

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Re: Thanks guys, I am up and running with BASCOM and ATSTK500

2006-02-06 by brewski922

I didn't say anything about using C over Basic. Matter of fact, because you know Basic, that is probably your best choice in getting started. Like you said, sooner or later you will probably make the transition but for now its Basic. Personally, I think anyone that takes programm

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Re: Thanks guys, I am up and running with BASCOM and ATSTK500

2006-02-05 by lcdpublishing

Thanks Jim and Mike. Jim, thanks for the link, will order it up from one of them tomorrow morning. Mike, I like basic - it likes me, I already understand it and I don't have to spend the time learning yet another programming language. If I had the time to take to learn it, I woul

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Re: Thanks guys, I am up and running with BASCOM and ATSTK500

2006-02-05 by brewski922

You actually want to support MCS Electronic's habit? Just kidding. Already own a copy of BASCOM AVR. Anyway... At the BASCOM homepage www.mcselec.com Click Resellers in the left column. There are three USA resellers listed. Mike I have know idea who I purchased mine from. > Now i

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AVR Development Board?

2006-02-05 by Arif Deshmukh

Dear Members, I am look out for AVR based development board. It should be low cost. Hoes investing in STK-500 board and which C compiler comes with STK-500. Please send me info. Thanking You, Deshmukh

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Thanks guys, I am up and running with BASCOM and ATSTK500

2006-02-05 by lcdpublishing

Thanks for the help guys, I am up and running with my system. I think I like this combination of the ATSTK500, and BASCOM. The performance I am getting, based on some timing tests, seems to be really good. The programming (hacking) flow is also working out pretty good too. Now it

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Re: problem programming the atmega16

2006-02-05 by amol_deshmukh

there are few setups to be done in ponyprog 1> go to setup > interface setup > choose the correct I/O port 2> check the invert reset pin and keep all others unchecked Amol Deshmukh IIT-Bombay India Date: Fri, 03 Feb 2006 19:39:57 -0000 From: "harish_ieee" Subject: problem program

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Yet another wall wart

2006-02-05 by Chuck Hackett

I recently purchased some stuff from MCPros (http://microcontrollershop.com/). One of the items was a universal Wall Wart that, by setting a rotary switch, can supply any of: 3.0V @ 1200 Ma 4.5 @ 1200 6.0 @ 1200 7.5 @ 900 9.0 @ 900 12.0 @ 700 The above is when driven with a 115V

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usart confuse-help me....

2006-02-04 by pinky elodia

hi.... i got confuse with usart... i'm using atmega128, i hve use pin2&pin3(mosi&miso) for download program...i believe in atmega128 its call usart0. in datasheet said that " in atmega103 compatibility mode, usart1 is not available, neither is the UBRR0H or UCRS0C registers. this

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Program starts executing immediately after loading with AVRStudeo 4.12

2006-02-04 by Chuck Hackett

I'm trying to get the Ethernut httpd demo program (Ethernut-4.0.1) running on my Ethernut 2.1b board. If I compile (with WinAVR-20060125 on WinXP) the demo with debug information turned off and load httpserv.elf it to the target board using AVRStudio (4.12 with Service Pack 1 and

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Re: [AVR-Chat] problem programming the atmega16

2006-02-04 by John Samperi

At 06:39 AM 4/02/2006, you wrote: >i am using windows xp .also i tried to correct the problem by >downloading some drivers such as giveio.sys and installed them but >still nothing happens. Checked if the parallel port is configured as a simple port EPP and not ECP??? Regards John

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Re: [AVR-Chat] AT90PWM3 "-B revision silicon" samples available?

2006-02-03 by Micah Stevens

Me too, I'm sampling a lot. Thanks for the tip. On Friday 03 February 2006 10:12 am, MuRaT KaRaDeNiZ wrote: > Check the datasheet on product page. It's updated this month, and there > is errata information added to the end of the datasheet. Also the > electrical & typical charact

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problem programming the atmega16

2006-02-03 by harish_ieee

hi guys,i am a newbie to world of avr microcontrollers . welll i have with me an atmega16l microcontroller which i want to program.i downloaded the schematics of the parallel port programmer from the ponyprog website.i did all the wiring as per the diagram. when i tried to burn a

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RE: [AVR-Chat] AT90PWM3 "-B revision silicon" samples available?

2006-02-03 by MuRaT KaRaDeNiZ

Check the datasheet on product page. It's updated this month, and there is errata information added to the end of the datasheet. Also the electrical & typical characteristics tables are filled. For me, the ADC is critical. Regards Murat Karadeniz http://www.onlinefavbar.com/mukas

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Re: Thanks for the offers of help and I have my first question...

2006-02-03 by lcdpublishing

Thanks Micah, Actually, I had it in my head backwards then. When I read about the Xtal being problimatic dur to distance, I thought they meant the internal one which is what led me to think I should install the one I planned on using. OKay, I will use the "standard" configuration

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Re: [AVR-Chat] AT90PWM3 "-B revision silicon" samples available?

2006-02-03 by Micah Stevens

I don't know if this matters, but I just received some samples this week, and they are not of the -B revision.. Is there a changelist somewhere? On Friday 03 February 2006 1:59 am, MuRaT KaRaDeNiZ wrote: > Hello All, > > Do you have any information, if AT90PWM3 "-B revision silic

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Thanks for the offers of help and I have my first question...

2006-02-03 by lcdpublishing

Last night I was going over the documentation for the ATSTK500 board. As this thing seems to be the swiss army knife of programmers, it also comes with a lot of jumpers and cables. I see that you can use either the clock signals from the board, OR you can put your own crystal on

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Re: Intro and may need some help along the way with Atmels....

2006-02-03 by tboneuk_2000

Hi Chris, I'm new here myself too and I have only been using the avr chips for a couple of weeks so we have somthing in common! Anyhow I too have used picaxe so I will gladly help your transition if I can Drew --- In AVR-Chat@yahoogroups.com, "lcdpublishing" wrote: > > Hi everyon

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Re: Intro and may need some help along the way with Atmels....

2006-02-03 by Dave VanHorn

--- In AVR-Chat@yahoogroups.com, "lcdpublishing" wrote: > > Hi everyone, > > I have been working with PICAXE chips/software for about 6 months > now and love them - however, they are limitted in performance. Welcome to the world of the backhoe! :)

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Re: Intro and may need some help along the way with Atmels....

2006-02-03 by Don Kinzer

--- In AVR-Chat@yahoogroups.com, "lcdpublishing" wrote: > So, if anyone is familiar with the setup I have going here, I may > need to bend your ear a bit till I get up and running. I have a fair amount of experience using the mega8, mega16 and mega32 and the STK500. Although I am

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Intro and may need some help along the way with Atmels....

2006-02-02 by lcdpublishing

Hi everyone, I have been working with PICAXE chips/software for about 6 months now and love them - however, they are limitted in performance. I am also learning electronics at the same time as I am learning about these wonderful micros. I am pretty well versed in VB6 programming

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RE: [AVR-Chat] Be on the lookout..

2006-02-01 by Claxton, Dean J

Interesting - another article here : http://www.pldesignline.com/news/showArticle.jhtml?articleID=177105335 Dean -----Original Message----- From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf Of Dave VanHorn Sent: Thursday, 2 February 2006 7:15 AM To: AVR-C

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Re: [AVR-Chat] Re: Be on the lookout.. Bugger!!!

2006-02-01 by Don Ingram

Dave VanHorn wrote: >> Just when the SAM7 was looking like an obvious move it's back to > processor >> procrastination. Bugger! >> >> >> Looks pretty shiny in the article ;-) > > Yes, but I do wonder when I can have one on my desk. > A bug free one at that. I might be an ARM vete

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Re: Be on the lookout.. Bugger!!!

2006-02-01 by Dave VanHorn

> Just when the SAM7 was looking like an obvious move it's back to processor > procrastination. Bugger! > > > Looks pretty shiny in the article ;-) Yes, but I do wonder when I can have one on my desk.

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Re: [AVR-Chat] Be on the lookout.. Bugger!!!

2006-02-01 by Don Ingram

Dave VanHorn wrote: > There's something new coming.. AVR32 with STK-1000 > > 16 registers in the register file, hardware context switching with some > number of mirrored registers. Four levels of interrupt priority, 64 > interrupt groups, and 32 lines per group (that's a LOTTA IS

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Be on the lookout..

2006-02-01 by Dave VanHorn

There's something new coming.. AVR32 with STK-1000 16 registers in the register file, hardware context switching with some number of mirrored registers. Four levels of interrupt priority, 64 interrupt groups, and 32 lines per group (that's a LOTTA ISRs!) Instructions for moving b

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Re: [AVR-Chat] Changing port from input to output on the fly

2006-01-31 by Jim Wagner

Normally, you would do this just leaving the pin as an output. Put a resistor between the transistor base and the port pin to reduce the base current. A 1K ought to work in your situation. But, for your further questions, there is no limit to the number of time you can change a p

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Re: Changing port from input to output on the fly

2006-01-31 by Dave VanHorn

> 1. Can anyone see any problem with this? The pullup resistors are weak, and their equivalent resistance value is not guaranteed. Multiply that somewhat unknown number by the beta of your transistor, and you'll see how much collector current you'll get. You'll be happier with so

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Re: [AVR-Chat] Re: Way OT: A question for our Aussie friends...Apology

2006-01-31 by Bruce Parham

erikc wrote: > Zack Widup wrote: > >>On Tue, 31 Jan 2006, Ted Smith wrote: >> >> >>>After reading the various replys to my original comment I apologise >>>for upsetting anyone and it was not my intention to start a diatribe >>>on the subject. >>>It's just that we in Australia are

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Driving LEDs, was "changing port..."

2006-01-31 by Clark, Andy

Hi Ted et al, When driving LEDs from AVRs I never look past N-channel logic MOSFETs such as FDV303N (680mA,smd) or ZVN4310A (900mA,eline). They work well within the frequency requirements of LED PWM drive and can be connected directly to AVR output pins (oh, and they don't blow u

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Re: [AVR-Chat] Re: Way OT: A question for our Aussie friends...

2006-01-31 by Zack Widup

On Tue, 31 Jan 2006, Ted Smith wrote: > Hi > 1. Yes, my suspicions are confirmed that gentlemen from the South of > US of A have a limited sense of humour and the slightest hint of > criticism sends makes their hair rise like a grizzly bear. Not so in the Nawth! In fact, many of

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Re: [AVR-Chat] Re: Way OT: A question for our Aussie friends...Apology

2006-01-31 by Russell Shaw

Ted Smith wrote: > After reading the various replys to my original comment I apologise > for upsetting anyone and it was not my intention to start a diatribe > on the subject. > It's just that we in Australia are sensitive to being put down (Eg. > references to being "down under"

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Changing port from input to output on the fly

2006-01-31 by Ted Smith

I want to use an ATMEGA16 to drive three sets of transistors to each switch 6 high brigtness LEDs in parallel from 1 output (240ma per set). There is not enough current in the AVR to connect the LEDs directly without additional parts. I propose to connect the AVR output pins dire

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