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strange display

2006-11-06 by Moataz Hussein

I am testing a simple countdown timer 99 to 0 which is displayed on 2 seven segment displays connected to the Atmega 8. number conversion is by a lookup table stored in registers 0 -9 in the init section. am using Atmega 8L, internal RC. The problem is that sometimes it starts wi

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Re: [AVR-Chat] Re: New member.

2006-11-06 by np np

I thought the emails were a bit harsh. Pretty much every group allows appended links but not outright advertising or inappropriate advertising in teh main body of the email. Given the PCBCAD software has been used for dozens of microcontroller projects then it is very relevant. A

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Re: [AVR-Chat] Re: New member.

2006-11-06 by David VanHorn

Ok gents.. Lay off on the link bashing. I approved that message, and I didn't see anything inappropriate in the link. Many of the folk on this list have something to sell, and as long as it's reasonably AVR/electronics related, reasonable mention of your products is fine. Ralph's

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Re: [AVR-Chat] Re: New member.

2006-11-05 by np np

Hi Harry, I have mostly programmed in asembler and even managed to program a PIC to do multitasking on a dual oven with a 256 * 64 vacuum fluorescent display and rotary encoder inputs. I still have most of the code I wrote for PIC's. I have done a couple of projects in C as I too

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Re: [AVR-Chat] Re: New member.

2006-11-05 by np np

Hi Zack, My name is Nigel Wright. I studied electronics in 1980 and got my City and Guilds T224 in industrial electronics. My first job was working for a company that designed modems and Prestel adaptors. I started off as a test engineer but quickly moved up as they realised I co

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Re: [AVR-Chat] Re: New member.

2006-11-05 by Zack Widup

I'm a moderator on 6 lists and an owner of one. It still amazes me what some people will do to get spam advertising onto these Yahoogroup lists. Most owners and moderators are leery of people who join and immediately post spam e-mails. They usually get the boot. However, I didn't

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Re: [AVR-Chat] Re: New member.

2006-11-05 by Zack Widup

Hi Harry, I think you will find AVR's impressive. In most applications I find they have many advantages over PIC's (probably the other most-used RISC microcontrollers). I find them easier to program and implement. There are some instances when I will use a PIC (I don't know of an

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Re: [AVR-Chat] Re: New member.

2006-11-05 by Ralph Hilton

On Sun, 05 Nov 2006 13:10:17 -0000 you wrote: It looked a bit like an advert because of the formatting. On various lists there are considerable attempts to enter adverts. I usually don't look much at the sig files either. The usual formatting for a signature is to separate it fro

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Re: Dongle

2006-11-05 by harrabylad

A common way of doing it is to put the dongle on a serial port. It can also be done with USB too. --- In AVR-Chat@yahoogroups.com, "musabfakhri" wrote: > > Hi there, > > How are you?I would like to start anew project talking about Dongle by > AVR Microcontroller as Hardware Lock

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Re: New member.

2006-11-05 by harrabylad

Sorry did not mean to cause all this trouble. The link is put on automaticaly by my emai lsoftware as I use that email address for work. I am most certainly interested in AVR's. I have removed the link to prevent any future upset. I normally ignore all links in other peoples emai

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Re: [AVR-Chat] New member.

2006-11-05 by Roy E. Burrage

You obviously haven't been around this list very long, Jon. Many of the more frequent posters, who also provide a great deal of assistance to others, do likewise with their signature lines. If memory serves correctly, one of Ralph's links also provides code that he offers for any

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Re: [AVR-Chat] New member.

2006-11-05 by Jon & Tammy

Roy E. Burrage wrote: Uh...excuse you? Ralph just happens to be one of the more helpful contributors to this list. Et tu, Jon? contributor or not it still doesn't give him the right to bash anyone else for including a link as there are three in his signature to a "in my opinion"

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Re: [AVR-Chat] New member.

2006-11-05 by Roy E. Burrage

Uh...excuse you? Ralph just happens to be one of the more helpful contributors to this list. Et tu, Jon? REB -- Roy Burrage Measurement Technologies, Inc. P.O. Box 611 Signal Mountain, TN 37377-0611 (423) 875-6944 Phone (423) 875-8218 FAX (Voicemail will accept FAX) Distributor o

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Re: [AVR-Chat] New member.

2006-11-05 by Jon & Tammy

Ralph Hilton wrote: Did you come here to talk about AVRs or to advertise a rather shaky looking product? nothing like the pot calling the kettle black eh Ralph? Jon -- Grants Pass,OR 97527 541 474 7782 Wherever you go, there you are.

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Re: [AVR-Chat] New member.

2006-11-05 by Ralph Hilton

On Sat, 04 Nov 2006 23:01:38 -0000 you wrote: >Hi, Just joined this group. > >I have been in electronics for 25 years and most of my experience is >in embedded systems. I worked for a PIC consultancy so while I heard >of AVR's I have not used them yet. > >http://www.ckp-railways.

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New member.

2006-11-04 by harrabylad

Hi, Just joined this group. I have been in electronics for 25 years and most of my experience is in embedded systems. I worked for a PIC consultancy so while I heard of AVR's I have not used them yet. http://www.ckp-railways.talktalk.net/pcbcad17.htm

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Re: [AVR-Chat] Help needed on atmel mega 169

2006-11-03 by James Ronald

Is this for an AVR Butterfly? Where you given LCD routines? ----- Original Message ----- From: "ven_praneeth" To: Sent: Tuesday, October 31, 2006 1:56 PM Subject: [AVR-Chat] Help needed on atmel mega 169 > Hi, > > I need few suggestions on the class project for atmel mega 169 > >

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Re: [AVR-Chat] Kenwood KT-6040 XS8 protocol

2006-11-02 by Zack Widup

Kenwood is one of the "Big Three" (Kenwood, Yaesu, Icom) who manufacture amateur radio equipment. I have some of it sitting right here in front of me! Zack On Thu, 2 Nov 2006, Andreas Stemmer wrote: > Jim Wagner wrote: > > No, this is an antenna tuner. > > Sorry, somehow my first

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Help needed on atmel mega 169

2006-10-31 by ven_praneeth

Hi, I need few suggestions on the class project for atmel mega 169 I have to write a program to display numbers from 1 to 7 one after another. It seems to be easy but it should have a delay of 2 seconds one after another. I need your suggestion and help in completing this task. I

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Re: [AVR-Chat] Kenwood KT-6040 XS8 protocol

2006-10-31 by Jim Wagner

No, this is an antenna tuner. Jim On Tue, 31 Oct 2006 09:06:54 +0100 Andreas Stemmer wrote: > Doug Locke wrote: > > Having aquired a Kenwood KT-6040 tuner recently I am > > looking for any > > information on the XS interface option included on the > > rear of the > > tuner especi

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RE: [AVR-Chat] Kenwood KT-6040 XS8 protocol

2006-10-31 by Doug Locke

Thanks for all the help so far, the unit is a HI-Fi separate tuner and has two green plastic sockets on the rear labelled as XS. The XS interface was to enable Kenwood hi-fi units to be controlled by a "master" unit as far as I can judge and used an 8 bit serial protocol with jus

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Re: [AVR-Chat] Kenwood KT-6040 XS8 protocol

2006-10-31 by Andreas Stemmer

Doug Locke wrote: > Having aquired a Kenwood KT-6040 tuner recently I am > looking for any > information on the XS interface option included on the > rear of the > tuner especially interfacing to an AVR. > Having tried reasonably unsuccessfully to find anything > via Google I > w

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RE: [AVR-Chat] Kenwood KT-6040 XS8 protocol

2006-10-30 by Doug Locke

Thanks for the info Frank and Jim, will have a ferret through and see if I can find something relevant. It seems strange that an interface present on something as ubiquitous as Kenwood gear is so little generally known. Cheers. Doug. -----Original Message----- From: AVR-Chat@yaho

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Re: [AVR-Chat] Kenwood KT-6040 XS8 protocol

2006-10-30 by Jim Wagner

Try www.mods.dk You may have to "register" but they have a lot of instruction manuals online. Have you looked on the Kenwood website? Jim, KA7EHK On Sun, 29 Oct 2006 20:40:32 -0000 "Doug Locke" wrote: > Having aquired a Kenwood KT-6040 tuner recently I am > looking for any > info

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Re: [AVR-Chat] OT Part sheet needed

2006-10-29 by Dave Lag

Kathy Quinlan wrote: >Hi all, > >I am chasing the info for the operation of the memory of the MC145512p >this is a tone / pulse dialler chip, all the docs I can find, just give >a block diagram, but do not explain how to use the chip. > > > > ask the ring rats maybe? http://tech.

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Re: [AVR-Chat] OT Part sheet needed

2006-10-29 by Ken Arck

If you don't need pulse dialing (does any PTSN not accept DTMF these days?), why not just use the DTMF function in Bascom? It does work quite well.... Ken At 09:35 AM 10/29/2006, you wrote: >Hi all, > >I am chasing the info for the operation of the memory of the MC145512p >this i

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Kenwood KT-6040 XS8 protocol

2006-10-29 by Doug Locke

Having aquired a Kenwood KT-6040 tuner recently I am looking for any information on the XS interface option included on the rear of the tuner especially interfacing to an AVR. Having tried reasonably unsuccessfully to find anything via Google I wonder if anyone here has used this

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Re: [AVR-Chat] OT Part sheet needed

2006-10-29 by Geo

On 30 Oct 2006, at 1:35, Kathy Quinlan wrote: > I am chasing the info for the operation of the memory of the MC145512p > this is a tone / pulse dialler chip, all the docs I can find, just give > a block diagram, but do not explain how to use the chip. Possibly some extra informat

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OT Part sheet needed

2006-10-29 by Kathy Quinlan

Hi all, I am chasing the info for the operation of the memory of the MC145512p this is a tone / pulse dialler chip, all the docs I can find, just give a block diagram, but do not explain how to use the chip. This chip is used in my test butt for phone work, but I do not know how

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Re: Dongle

2006-10-17 by kyappc

This is good. Please keep me posted. TQ in advance. --- In AVR-Chat@yahoogroups.com, "musabfakhri" wrote: > > Hi there, > > How are you?I would like to start anew project talking about Dongle by > AVR Microcontroller as Hardware Lock ,so I should be grateful if > anybody could he

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Re: [AVR-Chat] Mega162 crystal osc problem / CKOPT bit

2006-10-17 by David VanHorn

Those cap values are awfully small. What value does the crystal spec say you should have for load capaacitance? Take that value, double it, and subtract about 5 pf. Use that value for both caps and try again. [Non-text portions of this message have been removed]

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Re: [AVR-Chat] Mega162 crystal osc problem / CKOPT bit

2006-10-17 by Mike Harrison

On Tue, 17 Oct 2006 11:29:21 +0100, you wrote: >----- Original Message ----- >From: "Tim Mitchell" >To: >Sent: Tuesday, October 17, 2006 9:22 AM >Subject: [AVR-Chat] Mega162 crystal osc problem / CKOPT bit > > >> I'm having an oscillator problem with a Mega162 device ... Dunno if

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Re: [AVR-Chat] Mega162 crystal osc problem / CKOPT bit

2006-10-17 by Leon Heller

----- Original Message ----- From: "Tim Mitchell" To: Sent: Tuesday, October 17, 2006 9:22 AM Subject: [AVR-Chat] Mega162 crystal osc problem / CKOPT bit > I'm having an oscillator problem with a Mega162 device ... Dunno if > anyone has seen it before and might have some advice.

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Mega162 crystal osc problem / CKOPT bit

2006-10-17 by Tim Mitchell

I'm having an oscillator problem with a Mega162 device ... Dunno if anyone has seen it before and might have some advice. I've got 4 identical units with Mega162, 16MHz xtal with 15pf capacitors. One of them will not start up on power up (no oscillator) but the others are fine. I

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Re: Dongle

2006-10-17 by Mohamed Sadek

hi there if the dongle you want to developed will interfaced to the USB, the chip FT245R or FT232R will help you since these chips have a serial number burned on it (no two chips have the same serial number) which you can use to verify using the AVR controller note that these chi

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Dongle

2006-10-16 by musabfakhri

Hi there, How are you?I would like to start anew project talking about Dongle by AVR Microcontroller as Hardware Lock ,so I should be grateful if anybody could help me.......pls write me back

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SV: [AVR-Chat] AC contactor surge affects MCU

2006-10-16 by Svenn Dahlstrøm

Hi Behrooz Have same problem. A toroid 3F3 material ferrite with 1 turn on power cable helped a lot. My power is 24VAC... Svenn :-) ________________________________ Fra: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] På vegne av behrooz_hariri Sendt: 16. oktober 2006

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Re: [AVR-Chat] AC contactor surge affects MCU

2006-10-16 by Leon Heller

----- Original Message ----- From: "behrooz_hariri" To: Sent: Monday, October 16, 2006 10:43 AM Subject: [AVR-Chat] AC contactor surge affects MCU > AVR switchs on/off a 5V relay using ULN2003. The relay commands to > 220V AC contactor, which finally runs motor pumps. > > All the

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AC contactor surge affects MCU (2)

2006-10-16 by behrooz_hariri

It is interesting that seemingly the noise in 3phase contactor, as a radio wave, is absorbed and reflected from the metal box either. Putting LCD close (1-2 Cm) to the case, cause LCD blink. (specially E singnal of LCD is sensitive to any noise). 220V Mains null (mains ground) is

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AC contactor surge affects MCU

2006-10-16 by behrooz_hariri

AVR switchs on/off a 5V relay using ULN2003. The relay commands to 220V AC contactor, which finally runs motor pumps. All the circuits are placed in a metal box, and as far as I see, the spark from contactor coil disrupts LCD display or MCU itself. I used a serial RC in parallel

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Re: [AVR-Chat] Relay to 3-phase contactor: Spark and Noise

2006-10-16 by Dennis Clark

??? You should not even have that relay powered from your logic supply, put that relay on another power rail and (of course) control it with a transistor. DLC behrooz_hariri wrote: > The final contactor wich start/stop 3-phase motor and is connected to > a 5 volts relay on my AVR

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Re: [AVR-Chat] Relay to 3-phase contactor: Spark and Noise

2006-10-15 by David Kelly

On Oct 15, 2006, at 3:01 PM, Ned Konz wrote: > behrooz_hariri wrote: >> The final contactor wich start/stop 3-phase motor and is connected to >> a 5 volts relay on my AVR circuit board, cause spark and this has >> negative effect on both AVR and specially LCD. >> >> Is there a ci

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Re: [AVR-Chat] Relay to 3-phase contactor: Spark and Noise

2006-10-15 by Ned Konz

behrooz_hariri wrote: > The final contactor wich start/stop 3-phase motor and is connected to > a 5 volts relay on my AVR circuit board, cause spark and this has > negative effect on both AVR and specially LCD. > > Is there a circuit to diminish these electrical shocks? Yes. They

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Relay to 3-phase contactor: Spark and Noise

2006-10-15 by behrooz_hariri

The final contactor wich start/stop 3-phase motor and is connected to a 5 volts relay on my AVR circuit board, cause spark and this has negative effect on both AVR and specially LCD. Is there a circuit to diminish these electrical shocks? Thanks Behrooz Hariri

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Re: [AVR-Chat] USART on mega48

2006-10-06 by Aaron

David VanHorn wrote: >>I can see that!! :-D would not have had all these problems >>had you written it in assembler ;-) >> >> > > > >VBG! > > This is starting to feel like the ASM vs. C war. :) In the compiler's defense, it did exactly what I told it. In my defense, it's my first

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Re: [AVR-Chat] USART on mega48

2006-10-06 by David VanHorn

> > > I can see that!! :-D would not have had all these problems > had you written it in assembler ;-) VBG! -- > Feel the power of the dark side! Atmel AVR [Non-text portions of this message have been removed]

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Re: [AVR-Chat] USART on mega48

2006-10-06 by John Samperi

At 12:23 PM 6/10/2006, you wrote: >Well, the compiler was taking care of that for me. I can see that!! :-D would not have had all these problems had you written it in assembler ;-) Regards John Samperi ******************************************************** Ampertronics Pty. Ltd

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Re: [AVR-Chat] USART on mega48

2006-10-06 by Aaron

bibin john wrote: >see these links > > http://booksbybibin.14.forumer.com/viewtopic.php?t=119 > http://booksbybibin.14.forumer.com/viewtopic.php?t=108 > http://booksbybibin.14.forumer.com/viewtopic.php?t=122 > http://booksbybibin.14.forumer.com/viewtopic.php?t=118 > http://booksb

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Re: [AVR-Chat] Timer Counter

2006-10-05 by David VanHorn

Hardware R/C one shots on the gate of the fet that drives the solenoid, works out to be relatively cheap. [Non-text portions of this message have been removed]

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Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.