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2004-04-01 by Brandon Tolbert
Just joined up and I am glad to find a group like this. I have an interest in Atmel microcontrollers and would like to know if you guys think a good start point would be to acquire an STK500 and one of the Mavric II boards with the MEGA128. My goal is to simply teach myself how t
2004-03-31 by Bryant, Bob
Hi, Trying to get a bootloader going. One on the first steps is to writing the FLASH is to fill the temp buffer in the Atmel Mega64 I'm using. ; void fill_temp_buffer (unsigned int data, unsigned int adr); ; bits 7:1 in adr addresses the word in the page... (2=first word, 4=secon
2004-03-30 by John Samperi
Testing my email-once more!! Regards John Samperi ****************************************************** Ampertronics Pty. Ltd. 11 Brokenwood Place Baulkham Hills, NSW 2153 AUSTRALIA Tel. (02) 9674-6495 Fax (02) 9674-8745 Email: samperi@ampertronics.com.au Website http://www.ampe
2004-03-30 by Reza
hi. as Wassim said, you can use ponyprog, but it is slow, but powerfull. but if you want a fast and easy command line programmer, use the following link. it works with the STK200 parallel programmer (which pony uses it) also. ln.com.ua/~real/avreal/index_e.html or u can use uisp,
2004-03-29 by amir husain
Asslam-o-alikum WASEEM SHAHZAD many many thanks for reply and guide me. now I am strat to build this programmer. I am new to AVR controller so I may need help from u. I will be very greatful for ur help.I am living in karachi and please told me where do u live. regards Amir --- W
2004-03-29 by Brian Dean
On Sun, Mar 28, 2004 at 03:05:46PM -0800, LightYearCS wrote: > Now, do you usually need to remove the chip to reprogram? Nope - not as long as you are using ISP (serial) method. Many AVR's can be programmed using a parallel method that generally requires removing the chip from th
2004-03-29 by jay marante
hi! what is the boot loader for? i mean, how is it used in a system? how will i use the boot loade? any significant example? thank you... -jay Do you Yahoo!? Yahoo! Finance Tax Center - File online. File on time.
2004-03-28 by LightYearCS
Now, do you usually need to remove the chip to reprogram? So the fuses are "soft" fuses and can be reset huh? Okay so basically the SPI interface (and yes, I knew about the alternate pins) is good to use, just make sure to NEVER blow the wrong fuse when programming. Normally I do
2004-03-28 by Brian Dean
On Sun, Mar 28, 2004 at 12:27:40PM -0800, LightYearCS wrote: > Oh! Of course. That kinda went without saying I thought. So, you > basically need the clock whether it's internal, external crystal, or > external clock and it must be running. Gotcha :) Right. A common error is to so
2004-03-28 by LightYearCS
Oh! Of course. That kinda went without saying I thought. So, you basically need the clock whether it's internal, external crystal, or external clock and it must be running. Gotcha :) -----Original Message----- From: John Johnson [mailto:johnatl@mac.com] Sent: Sunday, March 28, 20
2004-03-28 by John Johnson
The chip must have a clock source to be programmed. Either internal or external. When you receive the chip, it is configured to use the internal oscillator. If you program it to use an external oscillator, you must have the external oscillator running to reprogram the chip. Regar
2004-03-28 by LightYearCS
Wait.... What? "There are fuse settings, however, to run with an external clock signal, in which case, unless you have an external clock attached you will lose the ability to reprogram the chip after you make that change." Are you saying that if I use an external clock I can't up
2004-03-28 by David VanHorn
At 09:56 AM 3/28/2004 -0500, Brian Dean wrote: >On Sun, Mar 28, 2004 at 12:38:03AM -0800, LightYearCS wrote: > >> So, really SPI is it right? :) > >Yep. Like Larry said, though, be careful setting fuse bits. By >default, the chips come set to run with the internal oscillator at 1
2004-03-28 by Brian Dean
On Sun, Mar 28, 2004 at 12:38:03AM -0800, LightYearCS wrote: > So, really SPI is it right? :) Yep. Like Larry said, though, be careful setting fuse bits. By default, the chips come set to run with the internal oscillator at 1 MHz. You'll normally reprogram the fuses to run at a h
2004-03-28 by Larry Barello
Yes, and no. You can certainly bugger a chip using the ISP (In System Programmer) which usually, but not always, shares the SPI pins. Then the only way to fix the chip is to do parallel programming with (typically, but not always) +12v on the reset pin. That would be impossible w
2004-03-28 by John Johnson
I used the stk500.exe from the command line a while back, but I can't get it to work now. I can program using Studio. When I issue the stk500 command, it appears to download, but the verify fails, and the AVR won't run. This is my command line: \stk500 -dATMEGA16 -pf -ifmain.hex
2004-03-28 by Alex Shepherd
> Are there public domain or free IBM PC type programs to do an > ICP for AVR? I mean I'm sure there is. What are the best ones? Two good ICSP Programmer Utilities. Both can use a simple 3 or 4 resistor programmer connected to the PC Parallel port. PonyProg http://www.lancos.com/
2004-03-28 by LightYearCS
Are there public domain or free IBM PC type programs to do an ICP for AVR? I mean I'm sure there is. What are the best ones? I really need something that I can send out to clients to do field BIOS upgrades and I don't want to write anything. I want to send the device out with a p
2004-03-28 by LightYearCS
Excellent! Thanks Larry :) Welp, here we go folks. I have 20 Atmel ATmeg64-16AI chips sitting here with more on the way. Our board is the tightest I've ever worked on. Some chips are as small as 3mm x 3mm and yup, I get to solder them all (joy?). The board gerbers will be sent ou
2004-03-28 by Larry Barello
All mega chips have the brownout circuitry integrated into the chips. -----Original Message----- From: LightYearCS [mailto:lightyearcs@zippnet.net] Sent: Saturday, March 27, 2004 4:01 PM To: AVR-Chat@yahoogroups.com Subject: RE: [AVR-Chat] Re: start AVR When you say "You can disp
2004-03-28 by LightYearCS
When you say "You can dispense with the reset chip" do you mean just for the purposes of learning or is brownout detection already integrated on the CPU? Are there any external supervisory circuits needed? -----Original Message----- From: Larry Barello [mailto:yahoo@barello.net]
2004-03-27 by samperi@ampertronics.com.au
At 08:05 PM 26/03/04 -0000, you wrote: >One thing that I wish there was (could be I just haven't found it) is >a Minimum AVR page. My first AVR setup was a piece of veroboard, a 40 pin socket, a crystal and associated caps, a reset chip and a few decoupling caps and a 90S8535. Pl
2004-03-27 by joseph torelli
This is where I started: http://members.aol.com/AVRProject/index.html And it uses a parallel port programmer. JoeT -----Original Message----- From: Phil [mailto:phil1960us@yahoo.com] Sent: Friday, March 26, 2004 2:06 PM To: AVR-Chat@yahoogroups.com Subject: [AVR-Chat] Re: start A
2004-03-27 by Phil
yeah, that's pretty close. wish I'd seen it 2 months ago! --- In AVR-Chat@yahoogroups.com, "Larry Barello" wrote: > Try: > http://homepage.sunrise.ch/mysunrise/pfleury/avr-starterkit.html > > With the new mega parts all you need is the chip and a +5v supply. Peter's > page, above
2004-03-27 by John Johnson
How about a Butterfly? They are about US$20, and will actually do something when you buy them. Later you can reprogram it, add connectors for I/O, etc. Regards, JJ On Friday, Mar 26, 2004, at 10:55 US/Eastern, ydexter wrote: > Hello, > > I saw that many people likes AVR (and they
2004-03-26 by Larry Barello
Try: http://homepage.sunrise.ch/mysunrise/pfleury/avr-starterkit.html With the new mega parts all you need is the chip and a +5v supply. Peter's page, above, is pretty old. You can dispense with the reset chip and you can use something like the "SAMPLE" programmer and the program
2004-03-26 by David VanHorn
At 08:05 PM 3/26/2004 +0000, Phil wrote: >One thing that I wish there was (could be I just haven't found it) is >a Minimum AVR page. It would have the minimum circuit needed to get >going plus a description of the simplest programming and development >envt. That's why I like the
2004-03-26 by Phil
One thing that I wish there was (could be I just haven't found it) is a Minimum AVR page. It would have the minimum circuit needed to get going plus a description of the simplest programming and development envt. The info is all there it just takes work to find it as you have to
2004-03-26 by LightYearCS
Yup, AVR rocks :) Check out www.avrfreaks.com Another processor I think may be way cool is the Texas Instruments MPS430. I don't know yet but I heard good things. MPS430 day is on April 30th (4/30 get it?) Sign up for the two hour seminar and get a MPS430 watch for free. I dunno
2004-03-26 by David VanHorn
At 03:55 PM 3/26/2004 +0000, ydexter wrote: >Hello, > >I saw that many people likes AVR (and they say AVR is more nice built >than a PIC). I want to start with them, but I really need some help. >What should be my starting AVR model? My favorite intro chip is the 2343. Not much i
2004-03-26 by ydexter
Hello, I saw that many people likes AVR (and they say AVR is more nice built than a PIC). I want to start with them, but I really need some help. What should be my starting AVR model? After that I can find docs and a programmer to the web. thanks
2004-03-25 by Ken Holt
The electronic candles advertised at C. Crane claim to flicker sometimes as if an occasional breeze had blown them. I would suggest using an orange and yellow LED, driven by 2 different generators, for a warm color and lively feel. Stay away from incandescent lights and filtering
2004-03-25 by Wagner Lipnharski
David VanHorn wrote: >> I have worked with products that were so realistic that I >> swear they were actual flames (at a distance) but I was told they >> were not. I'm still not sure if I believe them. > > Coding in a strange attractor might give more realistic flicker. > I think
2004-03-25 by Wagner Lipnharski
Kathy Quinlan wrote: > OK > > I think we need to split this discussion into 2 sections, those who > are using an language for hobby and those who are using a language > for work. > > The reason I say this is like a PCB layout program, hobbyists go for > the package with all the i
2004-03-25 by WASEEM SHAHZAD
Salam Amir! visit the website www.lancos.com. Pony Prog is the best programmer, i have used it with success.Different hardwares are available that work with this software.I use the parallel port programmer which is very simple and reliable.It is based on a single 74HC244.It is av
2004-03-25 by LightYearCS
Again, I should mention, I've seen very simple systems that use two or three levels of brightness and switch between those two or three states. The effect seems very acceptable for most applications I would think. Don't over complicate things. Mainly, I think the color is importa
2004-03-25 by John Johnson
Have you tried Googling for, say, battery candles flicker halloween? I turned up this device: http://www.bpesolutions.com/lghtefx.html#anchor615436 Which looks to be what you want. Regards, JJ On Thursday, Mar 18, 2004, at 15:36 US/Eastern, tom@kobo.com wrote: > I know just enoug
2004-03-25 by LightYearCS
Yes, although I'm not an expert on candle flicker strange attractor algorithms, intuitively I believe you are correct. You might want to join the Yahoo Group: Show-Control It's a surprisingly professional group with many of the members involved with theme park, movie, stage, and
2004-03-24 by LightYearCS
www.findchips.com can find them. -----Original Message----- From: Chuck Davis [mailto:cdavis2@aol.com] Sent: Tuesday, March 23, 2004 1:50 PM Subject: [AVR-Chat] Chip Sources Can anyone point me to a source (or sources) that stock Atmega chips? I need 25 - 50 atmega8515-16 in 40 p
2004-03-24 by David VanHorn
> > I have worked with products that were so realistic that I swear >they were actual flames (at a distance) but I was told they were not. >I'm still not sure if I believe them. Coding in a strange attractor might give more realistic flicker. I think that flame height and intensi
2004-03-24 by LightYearCS
Tom, I do this type of design work although normally at higher costs than what you are looking for. I suggest you use an incandescent lamp instead of an LED if you are looking for the best effects. A simple random voltage generator circuit with two or three voltage levels should
2004-03-24 by LightYearCS
This is where I totally agree. ASM has its place. Instances of that place are far fewer than most perceive. I have written complete embedded programs which are coded in C++ and run on an IBM compatible computer. Once the program is tested and verified, it's recompiled using a dif
2004-03-24 by Wagner Lipnharski
Chetan Bhargava wrote: > Hi All, > > I'm running AT90S2313 at 6MHz. I calculated the UBRR value to be 38 > for baud 9600. The actual baud would be 9615.38 would that be okay > according to the RS232 standards? > > Regards, > > Chetan It will work, except if the receiver speed goe
2004-03-24 by Larry Barello
If you download WinAvr (www.avrfeaks.net) the GCC c compiler tool set, it comes with a programmer called "AvrDude" In the configuration file for AvrDude, you will find the wiring for about a dozen different LPT port programmer cables. It is pretty obvious how they work. Alternati
2004-03-24 by David VanHorn
At 01:59 AM 3/24/2004 +0000, Chetan Bhargava wrote: >Hi All, > >I'm running AT90S2313 at 6MHz. I calculated the UBRR value to be 38 >for baud 9600. The actual baud would be 9615.38 would that be okay >according to the RS232 standards? You're allowed some error, but both sides hav
2004-03-24 by amirhusain73
I am a student and started work on AVR series microcontroller ATmega8535. I don't have any programmer so I want to built a programmer to program it. so please help me and tell me from where on the web I can get hardware circuit and software for simple in circuit serial programmer
2004-03-24 by stevech
I'd say that's a small enough error to be tolerated by most chips. I think 2-3% error is fine. By the way, RS232 is the standard for voltage levels only; it says nothing about the bit timing. -----Original Message----- From: Chetan Bhargava [mailto:list1@bhargavaz.com] Sent: Tues
2004-03-24 by Chetan Bhargava
Hi All, I'm running AT90S2313 at 6MHz. I calculated the UBRR value to be 38 for baud 9600. The actual baud would be 9615.38 would that be okay according to the RS232 standards? Regards, Chetan
2004-03-24 by Chetan Bhargava
Hi All, I'm running AT90S2313 at 6MHz. I calculated the UBRR value to be 38 for baud 9600. The actual baud would be 9615.38 would that be okay according to the RS232 standards? Regards, Chetan
2004-03-23 by Henry Carl Ott
Digikey is showing 1450 ATMEGA8515-16PI-ND in stock as of Tues afternoon. -carl At 09:49 PM 3/23/2004, you wrote: >Can anyone point me to a source (or sources) that stock Atmega >chips? I need 25 - 50 atmega8515-16 in 40 pin DIP, either standard >or industrial temp rating. My usu