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2004-09-23 by James Wagner
Jay - Some basic principles are in order here. The (approximate) amount of power dissipated by the regulator is the load current times the voltage difference across the regulator. Temperature rise is directly proportional to power. Thus, you have two choices with a given regulato
2004-09-23 by Cosmin Buhu
Graham, I agree you get most of the sells from countries where PayPal makes business, but you can lose a few from the others. There are some services like 2checkout to implement a payment system (with shopping cart) which will take just any credit card. Regards, Cosmin Buhu http:
2004-09-23 by Graham Davies
--- In AVR-Chat@yahoogroups.com, jay marante wrote: > ... the 7805 voltage regulator > heats up the heat sink too much. You have the information you need to solve your problem in other posts. But, I would like to ask what you mean by "too much". Are you worried that the 7805 will
2004-09-23 by Dave VanHorn
At 10:39 AM 9/23/2004, jay marante wrote: >i have my project on its final stage, the problem is that the 7805 voltage regulator heats up the heat sink too much. is this ok? i have inputs between 12V - 18V. it is connected to a 6V SPDT reed relay switch, which in turn, facilitates
2004-09-23 by jay marante
i have my project on its final stage, the problem is that the 7805 voltage regulator heats up the heat sink too much. is this ok? i have inputs between 12V - 18V. it is connected to a 6V SPDT reed relay switch, which in turn, facilitates the switching of power source (main and ba
2004-09-23 by Graham Davies
--- In AVR-Chat@yahoogroups.com, "Dingo" wrote: OK, I'm learning something here. Western Union is out. Credit cards are good. It has also been my experience that you get a very fair exchange rate with a credit card. Also a debit (ATM) card. So, on to PayPal. I have been assuming
2004-09-23 by Dingo
" I see that rubbing shoulders with Mark Latham in Canberra has improved your vocabulary :-))" Watch out if you are a taxi driver! BTW what is wrong with credit cards? Visa for example - I've bought heaps of stuff from overseas (I'm in Australia) and the exchange rate s good, ove
2004-09-23 by John Samperi
At 01:24 PM 23/09/04 +1000, you wrote: >(BTW, please excuse my french) > I see that rubbing shoulders with Mark Latham in Canberra has improved your vocabulary :-)) Regards John Samperi ****************************************************** Ampertronics Pty. Ltd. 11 Brokenwood Pl
2004-09-23 by Joe Tsang
maybe the following is a little OT ? Well, a little say on 'business world' transactions: usually, 'business people' are buying and selling in 'large volume' say, transaction of at least US$2,000 etc... Usually they use normal bank to send out money using T/T, and the correspondi
2004-09-23 by Peter Gargano
Re: [AVR-Chat] Atmel ICs from Jo Zen (was Re: ATmega128 on eBay) Graham Davies wrote: > However, I took a look at Western Union and I don't like the service > they're offering. Western Union ... Agggh. Someone sent me a Western Union money order, the paper form (they purchased fr
2004-09-22 by lowerpower
This is exactly what the problem is, used to see this all the time, external reset chip does the trick. Cheaper though to use a newer part. -lp --- In AVR-Chat@yahoogroups.com, "Larry Barello" wrote: > Use an external reset chip. This is a well documented problem with first > gen
2004-09-21 by Joe Tsang
Thanks, Graham ! I had just started up my paypal account. So, now, I can accept payment via paypal, to my e-mail address, ic_source_joe@yahoo.com I repeat my 'ad' message once again (only this time !) wrote:--- In AVR-Chat@yahoogroups.com, Joe Tsang wrote: > Or, might be better b
2004-09-21 by Larry Barello
Good thing most EEPROM now days has 100k cycles minimum and more like 1 million cycles - and that is at temperature and supply extremes. Room temp, normal operation is much, much better. These issues apply to modern FLASH as well. I was talking with a guy at Cypress about their P
2004-09-21 by Robert Adsett
At 05:11 PM 9/21/04 +1000, you wrote: >This App Note looks interesting. Unfortunately I have had no luck locating >it on national.com using variations of the search 'an-482 error detection >correction. >Could you send a link to the place we can get it from. National split EE's of
2004-09-21 by Graham Davies
--- In AVR-Chat@yahoogroups.com, Joe Tsang wrote: > Or, might be better buy from me ? Those are good prices, Jo, and as someone who polutes this group with advertising himself, I have no objection to your posting this. However, I took a look at Western Union and I don't like the
2004-09-21 by Joe Tsang
Or, might be better buy from me ? me= authorized Atmel IC re-seller - ATMEGA128-16AI US$6.5 / pc min. buy 10 pc - pay shipping charge US$16 (reach USA within 2 or 3 days) (so buying more, the average shipping cost = less !) - pay using Western Union (www.westernunion.com) - and,
2004-09-21 by Cosmin Buhu
Looks good and GPL, well written and commented, but is read only. Regards, Cosmin Buhu http://www.easyvitools.com Easy Control - Fast Windows developement for serial&TCP/IP communications EzCom2Web - Web enable your serial device ----- Original Message ----- From: "Paul Maddox" T
2004-09-21 by Paul Maddox
Perhaps you shoudl talk to this guy ;- http://www.myplace.nu/mp3/ He's got a FAT supported flashcard MP3 player Paul ----- Original Message ----- From: "Lasse Madsen" To: Sent: Monday, September 20, 2004 6:48 PM Subject: RE: [AVR-Chat] FAT file system > What are your plans for th
2004-09-21 by Ivan Vernot
Robert, This App Note looks interesting. Unfortunately I have had no luck locating it on national.com using variations of the search 'an-482 error detection correction. Could you send a link to the place we can get it from. Thanks, Ivan ----- Original Message ----- From: "Robert
2004-09-20 by Robert Adsett
At 11:19 PM 9/19/04 -0400, you wrote: >At 10:25 PM 9/19/04 -0300, you wrote: > > I have a circuit using an AT90S2313 working on a very noisy > >environment and subject to program 'crashes' sometimes. > > The Watchdog is very efficient recovering from crashes, but > >I'm having a
2004-09-20 by Lasse Madsen
Hi Gus and others... Have a look at this from PRLLC http://www.prllc.com/prllc_homemainFlash.htm it's a 139 USD (ok maybe a little more than a pack of beer but certainly dirt cheap) I've used it with both ARM and AVR with much success with will both read and write FAT12 and FAT16
2004-09-20 by Cosmin Buhu
----- Original Message ----- From: "Lasse Madsen" To: Sent: Monday, September 20, 2004 8:48 PM Subject: RE: [AVR-Chat] FAT file system > What are your plans for this? > > Seems to me like a bad investment to put an extra IC and what ever comes > along with it on a board to implem
2004-09-20 by Lasse Madsen
What are your plans for this? Seems to me like a bad investment to put an extra IC and what ever comes along with it on a board to implement a FAT file system when an ATm128 can do it with out problems. And one can purchase the royalty free code almost anywhere on the internet fo
2004-09-20 by Gus
implementing simple read file on FAT is not hard but when it comes to having FAT12, FAT16 and FAT32 where you do read and write is not a simple task. I started my project with 8-bit micro and it was very slow and the chip got filled fast. anyway....the idea here is that you don't
2004-09-20 by Gus
After a long time of work I am finally done with ALFAT. I used ARM chip and programmed it with full FAT file system where you can send SPI or UART(serial) commands to it and it will save FAT files to many kinds of medias SD, MMC, CF and hard disks! I would be more than happy to h
2004-09-20 by Mike Murphree
This may be interesting to the list: Watched item ending in the next 3 hours! -------------------------------------------------------------------------------- Item name: Atmel ATmega 128 Microcontrollers ATMEGA128-16AI AVR Subtitle: Dutch Auction, bid on 1-60 parts Atmel AVR New
2004-09-20 by Paul Maddox
Massimo, > I've never used codewarrior but i guess it would be possible to do what > I do with xcode/projectbuilder I forgot about that, thanks.. Paul
2004-09-20 by Massimo Banzi
Paul I've never used codewarrior but i guess it would be possible to do what I do with xcode/projectbuilder where I point to and external makefile and use that to build my project massimo On 20/set/04, at 11:02, Paul Maddox wrote: > Massimo, > >> it's available through fink > > T
2004-09-20 by Paul Maddox
Massimo, > it's available through fink Thanks, thats handy.. Next daft question, can I use CodeWarrior as the editor and somehow get it to run the command line compile? Paul
2004-09-20 by Massimo Banzi
Paul I use avr-gcc it's available through fink you will find instructions here http://www.vs.inf.ethz.ch/res/proj/smart-its/tools_macosx/ and here http://www.eecs.berkeley.edu/~mseeman/resources/macmicro.html to program i use an stk500 compatible programmer through an usb-serial
2004-09-20 by Paul Maddox
Dear all, So, heres a funny thing, anyone know of a programmer/C compiler for OSX? I've got virtual PC installed and win2K, but so far, no joy. I'd prefer to do it all nativly in OSX. Paul
2004-09-20 by Brian Dean
On Sat, Sep 18, 2004 at 12:53:21AM -0500, Dave VanHorn wrote: > Works fine for me.. You do have to get used to working with it. A > pointed stick works nicely as a holddown tool. I've tried metal > tools, but they all have problems. They either get soldered into the > circuit, or
2004-09-20 by Dave VanHorn
At 10:25 PM 9/19/2004, Larry Barello wrote: >Use an external reset chip. This is a well documented problem with first >generation AVR chips. If you can't then a) don't use the first word of >EEPROM and b) always zero the EEAR register between operations. I wrote some code for the
2004-09-20 by Larry Barello
For a second there, I though you were cleaning with India Pale Ale (IPA). -----Original Message----- From: leon_heller ... I don't have any problems. The flux from the pen I use (Electrolube) is sticky and leaves a slight residue, which I clean off with IPA. The old resin-based f
2004-09-20 by Larry Barello
Use an external reset chip. This is a well documented problem with first generation AVR chips. If you can't then a) don't use the first word of EEPROM and b) always zero the EEAR register between operations. Best, upgrade to a tiny26 or some other chip with a built in BOD. I have
2004-09-20 by Robert Adsett
At 10:25 PM 9/19/04 -0300, you wrote: > I have a circuit using an AT90S2313 working on a very noisy >environment and subject to program 'crashes' sometimes. > The Watchdog is very efficient recovering from crashes, but >I'm having a corruption on the EEPROM contents. > What is th
2004-09-20 by Mark Jordan
I have a circuit using an AT90S2313 working on a very noisy environment and subject to program 'crashes' sometimes. The Watchdog is very efficient recovering from crashes, but I'm having a corruption on the EEPROM contents. What is the best method of saving some bytes (2) in the
2004-09-19 by leon_heller
--- In AVR-Chat@yahoogroups.com, "Larry Barello" wrote: > Well, I went out and got my kester no-clean .025 solder and a flux pen. > After trying to solder down some 1206 and 603 parts I have one thing to say: > > What a waste of money. > > For small parts, hand assembly the old r
2004-09-18 by R. Burrage
Could it be the temperature of your soldering iron, Larry? My experience has been that the no-clean fluxes need a bit higher soldering temperature than we would use with a rosin based flux to work properly. The water solubles seem to work better when the soldering temperature is
2004-09-18 by Dave VanHorn
At 04:56 PM 9/17/2004, Larry Barello wrote: >Well, I went out and got my kester no-clean .025 solder and a flux pen. >After trying to solder down some 1206 and 603 parts I have one thing to say: > >What a waste of money. Works fine for me.. You do have to get used to working with
2004-09-18 by chrisnejm
I am using Imagecraft AVR as my compiler and i have currently been attempting to interface my DS1307 with a M128 using I2C (TWI). I originally started programming for a Phillips RTC and found out the PCF8563 isnt available in Australia, so i have converted to the DS1307. I am awa
2004-09-17 by Larry Barello
Well, I went out and got my kester no-clean .025 solder and a flux pen. After trying to solder down some 1206 and 603 parts I have one thing to say: What a waste of money. For small parts, hand assembly the old rosin RMA stuff (sticky goo) works much better - things stick, they w
2004-09-17 by philipat2
Hi, did somebody experience a different (lower) ADC input impedance of the MEGA8 compared to the TINY26? Thanks, Filip
2004-09-16 by Don Kinzer
--- In AVR-Chat@yahoogroups.com, "silicasolution" wrote: > Hello Group, > > Does anybody out there know of any sample code [...] that will > allow me to communicate with Dallas 1-wire devices? The protocol isn't too diffucult to implement, especially if you only need master mode
2004-09-16 by silicasolution
Hello Group, I am using IAR 2.88A for development of a mega128 application. Does anybody out there know of any sample code for this compiler that will allow me to communicate with Dallas 1-wire devices? I know Codevision provides an include file and functions for this purpose, bu
2004-09-16 by jarring666
Hi everyone, I'm a uni. student who doing the final year project. I try to use AVR controller to apply in a car. I want to implement a fuzzy control to control the cool fan speed for the engine. This should be a very small close loop system. Now, I don't know how to choose the ch
2004-09-15 by R. Burrage
Yeah...yeah...I lurk on the PICLIST too. ;-) REB Dave VanHorn wrote: >>A customer specified use of a PIC 18F series earlier this year (I'm still trying to scrub the scuz off ;-) ), >> >> > >EEEEEWWWwwwww. :) > >
2004-09-15 by Russ LeMaster
If I'm not mistaken, the 3.4.1 (experimental) version of gcc has a pascal frontend now (from the GNU Pascal project). I'm not sure if it is supported for avr at this point, but since the backend of the the compiler handles chip specific stuff it's worth a shot. Try http://gcc.gnu
2004-09-15 by Dave VanHorn
> >A customer specified use of a PIC 18F series earlier this year (I'm still trying to scrub the scuz off ;-) ), EEEEEWWWwwwww. :) > and my thinking is that if this happens again it would just be easier to use a relatively more common language instead of learning another assemble
2004-09-15 by R. Burrage
It may be lower case but I had a calculus instructor in college who could flick the rubber tip of her pointer right between one's eyes for not capitalizing his name. Old habits die hard, even after almost 30 years. Projects are combined commercial and personal. I've been working