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2007-04-12 by dlc
Yes, the termination resistors go only at the termination points to stop reflections on the transmission lines. They don't go at every node. DLC magzky02 wrote: > hello folks, > > I am using a micocontroller to communicate with 18 other > microcontrollers via rs489. Using the IC
2007-04-12 by Alex Gibson
Ranjit Puri wrote: > Hi, > > Heres some classic bit-banged I2C code (written for AVR GCC) that talks to a > DS1631 I2C temperature sensor (see attached). > > Regards > Ranjit Can't send attachments to yahoo groups, they block it automatically. Need to either paste it as text or u
2007-04-12 by Alex Gibson
Dave Miller wrote: > Hello All, > > Has anyone seen the Podcasts from AVR? If you have iTunes search for AVR television. > > They just released a new one today that discusses the new AVR32 Core. > > I thought it was kind of cool to put a face with Haakon Skar (those that have bee
2007-04-12 by Ranjit Puri
Hi, Heres some classic bit-banged I2C code (written for AVR GCC) that talks to a DS1631 I2C temperature sensor (see attached). Regards Ranjit On 11 Apr 2007 18:25:08 -0700, jasonparkerhendrix wrote: > > Does anyone have example winavr code for working with temperature > sensors v
2007-04-12 by Alex Gibson
mago Umandam wrote: > > Ohhh... thanks you for your advice... ;) > > regards > > mago > > > Andreas Stemmer wrote: > magzky02 wrote: >> I am using a micocontroller to communicate with 18 other >> microcontrollers via rs489. Using the IC MAX3088, and a 100 ohm >> resistor across A
2007-04-12 by mago Umandam
Ohhh... thanks you for your advice... ;) regards mago Andreas Stemmer wrote: magzky02 wrote: > I am using a micocontroller to communicate with 18 other > microcontrollers via rs489. Using the IC MAX3088, and a 100 ohm > resistor across A and B.. Since there are 19 MAX3088, there
2007-04-12 by Andreas Stemmer
magzky02 wrote: > I am using a micocontroller to communicate with 18 other > microcontrollers via rs489. Using the IC MAX3088, and a 100 ohm > resistor across A and B.. Since there are 19 MAX3088, there are also > 19 100 ohm in parallel. IS there something wrong with this? Yes, f
2007-04-12 by John Samperi
At 04:28 PM 12/04/2007, you wrote: >Since there are 19 MAX3088, there are also >19 100 ohm in parallel. IS there something wrong with this? t Yes!! The 120 Ohm resistor goes ONLY at the end of the line and another one at the start of the line plus the line biasing network. Regard
2007-04-12 by magzky02
hello folks, I am using a micocontroller to communicate with 18 other microcontrollers via rs489. Using the IC MAX3088, and a 100 ohm resistor across A and B.. Since there are 19 MAX3088, there are also 19 100 ohm in parallel. IS there something wrong with this? the resulting res
2007-04-12 by Eric Engler
--- In AVR-Chat@yahoogroups.com, Dave Miller wrote: > Has anyone seen the Podcasts from AVR? If you have iTunes search for AVR television. > > They just released a new one today that discusses the new AVR32 Core. You can see these at www.avrtv.com. The first one was a yawner, but
2007-04-11 by David VanHorn
On 4/11/07, Richard Cooke wrote: > HI Folks, > > In Atmel's "AVR042: AVR Hardware Design Considerations" they recommend > putting resistors on the SPI lines to allow using the ISP feature > along with the application's use of the SPI port. > > What they don't show is the value of
2007-04-11 by jasonparkerhendrix
Does anyone have example winavr code for working with temperature sensors via i2c? Specifically I'm working with a TMP75AIDR (http://focus.ti.com/lit/ds/symlink/tmp75.pdf) and an ATMEGA32 (http://www.atmel.com/dyn/resources/prod_documents/doc2503.pdf) However, any winavr code for
2007-04-11 by Jeffrey Engel
Are you at University? If so, check with the technical library. They can be a treasure trove of information! HTH, Jeff Engel Arlington, TX --- "Roy E. Burrage" wrote: > That's easy. > > Send the IEEE a check to join the organization. > > Then, after your enrollment is accepted, s
2007-04-11 by Richard Cooke
HI Folks, In Atmel's "AVR042: AVR Hardware Design Considerations" they recommend putting resistors on the SPI lines to allow using the ISP feature along with the application's use of the SPI port. What they don't show is the value of the resistors. Does anybody have any recommend
2007-04-11 by David VanHorn
> I need these paper for research > thanks It sounds like you're asking people to commit a copyright violation for you. That's a very odd thing to ask of a bunch of people who write software for a living. Perhaps you could find other resources on PIDs that don't involve that sort
2007-04-11 by Roy E. Burrage
That's easy. Send the IEEE a check to join the organization. Then, after your enrollment is accepted, send another check for the copyrighted document. What's the problem? REB Mehdi Ghassemi wrote: >Hi dear/sir >if anyone can login to IEEE please send me these article by email: >w
2007-04-11 by Mehdi Ghassemi
Hi dear/sir if anyone can login to IEEE please send me these article by email: www.ieeexplore.ieee.org/iel5/10849/34189/01629912.pdf www.ieeexplore.ieee.org/iel5/8775/27842/01242518.pdf I need these paper for research thanks best regards Don't be flakey. Get Yahoo! Mail for Mobil
2007-04-10 by Dave Miller
Hello All, Has anyone seen the Podcasts from AVR? If you have iTunes search for AVR television. They just released a new one today that discusses the new AVR32 Core. I thought it was kind of cool to put a face with Haakon Skar (those that have been around a long time may recogniz
2007-04-10 by John Samperi
At 09:26 AM 10/04/2007, you wrote: >Both are acceptable. Would be interesting to see the value of the expression in this case :) Regards John Samperi ******************************************************** Ampertronics Pty. Ltd. 11 Brokenwood Place Baulkham Hills, NSW 2153 AUSTR
2007-04-09 by Dave Hylands
Hi John, On 4/9/07, John Samperi wrote: > At 08:13 PM 9/04/2007, you wrote: > >(1 > Didn't the compiler complain? Or are both
2007-04-09 by John Samperi
At 08:13 PM 9/04/2007, you wrote: >(1
2007-04-09 by anding_eunding
Thanks Bob, and John 1. I had a silly typing error in my code that simply stopped the real AVR from working: TCCR1B |= (0 wrote: > > Hi, > > I am totally perplexed! I'm trying to set up fast PWM on 16-bit > Timer 1 of the ATMega 168 in mode 14 (i.e. fast PWM, TOP = ICR1). > > It
2007-04-09 by BobGardner@aol.com
In a message dated 4/8/2007 9:35:22 P.M. Eastern Daylight Time, anding_eunding@yahoo.com writes: The way I read the datasheet, in mode 14, ICP1 is allowed to hold any value from 4 - 65535, to give a selectable pulse width. I used a value of around 40000.... ======================
2007-04-09 by BobGardner@aol.com
In a message dated 4/8/2007 9:00:43 P.M. Eastern Daylight Time, anding_eunding@yahoo.com writes: Maybe I could put the question another way: Does anyone have experience of running Timer 1 Mode 14 successfully on an ATmega 168? If you do, could you share the code fragment please?
2007-04-08 by John Samperi
At 10:47 PM 8/04/2007, you wrote: >[The chip and the the debugger seem to behave the >same]. Don't rely on the simulator for this kind of thing. Do you have a Dragon or JTAGMK2 with debug wire so that you can see what is REALLY happening inside the chip? Regards John Samperi ****
2007-04-08 by anding_eunding
The way I read the datasheet, in mode 14, ICP1 is allowed to hold any value from 4 - 65535, to give a selectable pulse width. I used a value of around 40000.... --- In AVR-Chat@yahoogroups.com, BobGardner@... wrote: > > In a message dated 4/8/2007 9:00:43 P.M. Eastern Daylight Ti
2007-04-08 by anding_eunding
Hi John, Thanks, that's a good idea. I do not have at the momement but a Dragon is a good idea to pick up at some point when I have an order going in. Maybe I could put the question another way: Does anyone have experience of running Timer 1 Mode 14 successfully on an ATmega 168?
2007-04-08 by BobGardner@aol.com
In a message dated 4/8/2007 7:27:52 A.M. Eastern Daylight Time, anding_eunding@yahoo.com writes: Yup, the AVR doesn't generate any waveform either... Really confusing! ============================== Tried something simpler, like 8 bit fast or 10 bit fast? Just init, then write th
2007-04-08 by BobGardner@aol.com
In a message dated 4/8/2007 1:24:58 A.M. Eastern Daylight Time, anding_eunding@yahoo.com writes: am totally perplexed! I'm trying to set up fast PWM on 16-bit Timer 1 of the ATMega 168 in mode 14 (i.e. fast PWM, TOP = ICR1). It "doesn't work", and three strange things are happeni
2007-04-08 by anding_eunding
Hi Bob, That's a good tip for a workaround. Too early to quite give up on plan 'A' yet though! The databook says Timer 1 mode 14 is 16 bit fast PWM but, it doesn't do that (behaves like 10 bit dual slope PWM with restricted prescaler choices?). This can't be right. Am I reading t
2007-04-08 by anding_eunding
Hi Bob, Yup, the AVR doesn't generate any waveform either... Really confusing! --- In AVR-Chat@yahoogroups.com, BobGardner@... wrote: > > > In a message dated 4/8/2007 1:24:58 A.M. Eastern Daylight Time, > anding_eunding@... writes: > > am totally perplexed! I'm trying to set up
2007-04-08 by anding_eunding
Hi, I am totally perplexed! I'm trying to set up fast PWM on 16-bit Timer 1 of the ATMega 168 in mode 14 (i.e. fast PWM, TOP = ICR1). It "doesn't work", and three strange things are happening which I've investigated thoroughly on in the AVR Studio debugger: - I cannot write 16 bi
2007-04-07 by John Samperi
At 08:57 PM 7/04/2007, you wrote: >Dooste aziz >Ketabe jadide robotic az Kanoon Nashre Olum montasher FANTASTIC! Always wanted one of these....whatever that is :) I'm sure it will greatly benefit all of us. Pity my Persian (Farsi??) is non existent. :) Regards John Samperi ******
2007-04-07 by gary skinner
great company near Denver, Colorado looking for full time EE specializing in embedded controls. Hardware, Firmware, some RF and regulatory work. Several years experience required. Relocation possible. thanks,
2007-04-07 by Thomas Keller
David McNab wrote: > > Hi all, > > I'm looking around at the available chips/modules for cellular network > access, particularly gsm/gprs. > > One desired feature is the ability to control a device via SMS text > messages. Another feature is the ability to make a regular TCP > co
2007-04-07 by Thomas Keller
Mehdi Ghassemi wrote: > > Hi > I have a project about PID controller for temperature process with > relay output > if somebody has complete information please help me > thanks > Check Atmel Applications Note # AVR224 "Discrete PID Controller"
2007-04-07 by Michael Haisley
Sprint has a nifty module that is designed for oems, go to developer.sprint.com for more info, ì believe a few of the other cell providers offer similar solutions, most speak rs232. On 4/6/07, David McNab wrote: > Hi all, > > I'm looking around at the available chips/modules for
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2007-04-06 by David McNab
Hi all, I'm looking around at the available chips/modules for cellular network access, particularly gsm/gprs. One desired feature is the ability to control a device via SMS text messages. Another feature is the ability to make a regular TCP connection from the internet, and reach
2007-04-05 by Jim Wagner
On 05 Apr 2007 14:25:48 -0700,Thu, 5 Apr 2007 14:25:45 -0700 (PDT) Mehdi Ghassemi wrote: > Hi dear friends > if I need anyone with complete information because I > wanna perform a proffesional conversation(industrial not > ordinary concept) with him(her) I do this project > compl
2007-04-05 by Mehdi Ghassemi
Hi dear friends if I need anyone with complete information because I wanna perform a proffesional conversation(industrial not ordinary concept) with him(her) I do this project complete and work propely(there is front me on labratoary table) I'm a instrument engineer(M.S) and I kn
2007-04-05 by np np
I would be delighted to help. £45 per hour. ----- Original Message ---- From: Kathy Quinlan To: AVR-Chat@yahoogroups.com Sent: Thursday, 5 April, 2007 10:33:28 AM Subject: Re: [AVR-Chat] INDUSTRIAL "PID" CONTROLLER Mehdi Ghassemi wrote: > Hi > I have a project about PID controlle
2007-04-05 by Tom Becker
> ... if somebody has complete information... "I am never forget the day I first meet the great Lobachevsky. In one word he told me secret of success in mathematics: Plagiarize! Plagiarize, Let no one else's work evade your eyes, Remember why the good Lord made your eyes, So don'
2007-04-05 by Kathy Quinlan
Mehdi Ghassemi wrote: > Hi > I have a project about PID controller for temperature process with relay output > if somebody has complete information please help me > thanks I SMELL HOMEWORK. I would try it for yourself, try to work it out and then come to us with SPECIFIC question
2007-04-04 by Mehdi Ghassemi
Hi I have a project about PID controller for temperature process with relay output if somebody has complete information please help me thanks ____________________________________________________________________________________ Be a PS3 game guru. Get your game face on with the la
2007-04-04 by Reza
And due to Mr. Samperi's notes, it's speed is varies and at the other hand, you may need to send some data/command bytes to keyboard using same data line which does not works using USART. ____________________________________________________________________________________ Expecti
2007-04-03 by John Samperi
At 07:54 AM 4/04/2007, you wrote: > - why not use one of the USARTS of Because it is a completely different format. The KB signals are more close to a I2C or TWI format than a USART format but not the same. Regards John Samperi ****************************************************
2007-04-03 by Alex De Lara
Sorry I post such similar question but cannot figure out a good answer: From the ATMEL app note, it is suggested to implement a PS/2 keyboard interface using INT0 (keyboard clock) and any other port (data line). Using this schema, the data value is sampled and stored are every le
2007-04-03 by zolauri
> > > >ps: addresses of further discussion forums are also appreciated > > http://www.edaboard.com/ > > Thx Ralph, I put my question there
2007-04-03 by Ralph Hilton
On Mon, 02 Apr 2007 19:30:20 -0000 you wrote: >I use a digit scope that is in the subject. I'd like to know if >anybody know >this model or somebody has any kind of experience with it. > >It gives an error message after every single startup so I'd like to >know how >serious the p